From 8a8c7db20d057bb1f86d0d20cf6ac8362d2cfeb1 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Wed, 7 Jan 2026 22:08:28 -0500
Subject: [PATCH 01/22] Update Github Actions CI OS

---
 .github/workflows/ci.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 80bc988c..91eed9f3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ concurrency:
 jobs:
   setup:
     name: 'Load job configuration'
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     outputs:
       compilers: ${{ steps.load-config.outputs.compilers }}
     steps:
@@ -68,7 +68,7 @@ jobs:
 
   macos:
     name: '[macos] x86_64/${{ matrix.dc }}'
-    runs-on: macos-11
+    runs-on: macos-13
     needs: setup
     # Only run if the setup phase explicitly defined compilers to be used
     if: ${{ fromJSON(needs.setup.outputs.compilers).macos != '' && fromJSON(needs.setup.outputs.compilers).macos != '[]' }}
@@ -104,7 +104,7 @@ jobs:
 
   ubuntu:
     name: '[ubuntu] ${{ matrix.arch }}/${{ matrix.dc }}'
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     needs: setup
     # Only run if the setup phase explicitly defined compilers to be used
     if: ${{ fromJSON(needs.setup.outputs.compilers).ubuntu != '' && fromJSON(needs.setup.outputs.compilers).ubuntu != '[]' }}

From 2321cc881cb664cee4a4edd3bc010f772da683ec Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Wed, 7 Jan 2026 22:09:13 -0500
Subject: [PATCH 02/22] Add timeout-minutes condition to Github Actions

---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 91eed9f3..1bff30ad 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -69,6 +69,7 @@ jobs:
   macos:
     name: '[macos] x86_64/${{ matrix.dc }}'
     runs-on: macos-13
+    timeout-minutes: 60
     needs: setup
     # Only run if the setup phase explicitly defined compilers to be used
     if: ${{ fromJSON(needs.setup.outputs.compilers).macos != '' && fromJSON(needs.setup.outputs.compilers).macos != '[]' }}
@@ -105,6 +106,7 @@ jobs:
   ubuntu:
     name: '[ubuntu] ${{ matrix.arch }}/${{ matrix.dc }}'
     runs-on: ubuntu-24.04
+    timeout-minutes: 60
     needs: setup
     # Only run if the setup phase explicitly defined compilers to be used
     if: ${{ fromJSON(needs.setup.outputs.compilers).ubuntu != '' && fromJSON(needs.setup.outputs.compilers).ubuntu != '[]' }}
@@ -145,6 +147,7 @@ jobs:
   windows:
     name: '[windows] x86_64/${{ matrix.dc }}'
     runs-on: windows-2022
+    timeout-minutes: 60
     needs: setup
     # Only run if the setup phase explicitly defined compilers to be used
     if: ${{ fromJSON(needs.setup.outputs.compilers).windows != '' && fromJSON(needs.setup.outputs.compilers).windows != '[]' }}

From 185e7f1a570baa33abd7685452a7b81df25eab2f Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Wed, 7 Jan 2026 22:41:52 -0500
Subject: [PATCH 03/22] Update github actions cache to v4

---
 .github/workflows/ci.yml | 34 ++++++++++++++++++++++------------
 1 file changed, 22 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1bff30ad..e6102de8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -89,12 +89,15 @@ jobs:
         with:
           compiler: ${{ matrix.dc }}
       - name: Cache dub dependencies
-        uses: actions/cache@937d24475381cd9c75ae6db12cb4e79714b926ed
+        uses: actions/cache@v4
         with:
-          path: ~/.dub/packages
-          key: macos-latest-build-${{ hashFiles('**/dub.sdl', '**/dub.json') }}
+          path: |
+            ~/.dub/packages
+            ~/Library/Caches/dub
+          key: ${{ runner.os }}-dub-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            macos-latest-build-
+            ${{ runner.os }}-dub-${{ matrix.dc }}-
+            ${{ runner.os }}-dub-
       - name: Build / test
         run: |
           dub test --arch=$ARCH --build=unittest-cov
@@ -130,12 +133,16 @@ jobs:
         if: matrix.arch == 'x86'
         run: sudo apt-get update && sudo apt-get install gcc-multilib
       - name: Cache dub dependencies
-        uses: actions/cache@937d24475381cd9c75ae6db12cb4e79714b926ed
+        uses: actions/cache@v4
         with:
-          path: ~/.dub/packages
-          key: ubuntu-latest-build-${{ hashFiles('**/dub.sdl', '**/dub.json') }}
+          path: |
+            ~/.dub/packages
+            ~/.cache/dub
+          key: ${{ runner.os }}-dub-${{ matrix.arch }}-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            ubuntu-latest-build-
+            ${{ runner.os }}-dub-${{ matrix.arch }}-${{ matrix.dc }}-
+            ${{ runner.os }}-dub-${{ matrix.arch }}-
+            ${{ runner.os }}-dub-
       - name: Build / test 
         run: |
           dub test --arch=$ARCH --build=unittest-cov
@@ -167,12 +174,15 @@ jobs:
         with:
           compiler: ${{ matrix.dc }}
       - name: Cache dub dependencies
-        uses: actions/cache@937d24475381cd9c75ae6db12cb4e79714b926ed
+        uses: actions/cache@v4
         with:
-          path: ~\AppData\Local\dub
-          key: windows-latest-build-${{ hashFiles('**/dub.sdl', '**/dub.json') }}
+          path: |
+            ${{ env.APPDATA }}\dub\packages
+            ${{ env.LOCALAPPDATA }}\dub
+          key: ${{ runner.os }}-dub-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            windows-latest-build-
+            ${{ runner.os }}-dub-${{ matrix.dc }}-
+            ${{ runner.os }}-dub-
       # Tests are split up to work around OOM errors -- no combined testing is done
       # as it's simply too big for the compiler to handle on Windows.
       - name: Build / test

From 575580264128859ecc8dfac0ff1e88241b5eb80e Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Wed, 7 Jan 2026 22:43:29 -0500
Subject: [PATCH 04/22] Update macos-13 to macos-15-intel

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e6102de8..a65ca135 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -68,7 +68,7 @@ jobs:
 
   macos:
     name: '[macos] x86_64/${{ matrix.dc }}'
-    runs-on: macos-13
+    runs-on: macos-15-intel
     timeout-minutes: 60
     needs: setup
     # Only run if the setup phase explicitly defined compilers to be used

From 37db0eb903b83c3ba7eaad3de834ffc02c2ff4af Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Wed, 7 Jan 2026 23:24:02 -0500
Subject: [PATCH 05/22] Update codecov to v5

---
 .github/workflows/ci.yml | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a65ca135..3dc7327f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -104,7 +104,12 @@ jobs:
           dub test --arch=$ARCH --combined
         shell: bash
       - name: Upload coverage data
-        uses: codecov/codecov-action@f32b3a3741e1053eb607407145bc9619351dc93b
+        uses: codecov/codecov-action@v5
+        with:
+            fail_ci_if_error: true
+            verbose: true
+        env:
+            CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
   ubuntu:
     name: '[ubuntu] ${{ matrix.arch }}/${{ matrix.dc }}'
@@ -149,7 +154,12 @@ jobs:
           dub test --arch=$ARCH --combined 
         shell: bash
       - name: Upload coverage data
-        uses: codecov/codecov-action@f32b3a3741e1053eb607407145bc9619351dc93b
+        uses: codecov/codecov-action@v5
+        with:
+            fail_ci_if_error: true
+            verbose: true
+        env:
+            CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
   
   windows:
     name: '[windows] x86_64/${{ matrix.dc }}'
@@ -193,6 +203,11 @@ jobs:
           dub test --arch=$ARCH --build=unittest-ci -c ci-test
         shell: bash
       - name: Upload coverage data
-        uses: codecov/codecov-action@f32b3a3741e1053eb607407145bc9619351dc93b
+        uses: codecov/codecov-action@v5
+        with:
+            fail_ci_if_error: true
+            verbose: true
+        env:
+            CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
     
         

From 78b4eadaaecc67bf1dc749877d20e59c1fe3090e Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 06:56:57 -0500
Subject: [PATCH 06/22] Update restore-keys

---
 .github/workflows/ci.yml | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3dc7327f..f246cc9f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -97,7 +97,6 @@ jobs:
           key: ${{ runner.os }}-dub-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
             ${{ runner.os }}-dub-${{ matrix.dc }}-
-            ${{ runner.os }}-dub-
       - name: Build / test
         run: |
           dub test --arch=$ARCH --build=unittest-cov
@@ -146,8 +145,6 @@ jobs:
           key: ${{ runner.os }}-dub-${{ matrix.arch }}-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
             ${{ runner.os }}-dub-${{ matrix.arch }}-${{ matrix.dc }}-
-            ${{ runner.os }}-dub-${{ matrix.arch }}-
-            ${{ runner.os }}-dub-
       - name: Build / test 
         run: |
           dub test --arch=$ARCH --build=unittest-cov
@@ -192,7 +189,6 @@ jobs:
           key: ${{ runner.os }}-dub-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
             ${{ runner.os }}-dub-${{ matrix.dc }}-
-            ${{ runner.os }}-dub-
       # Tests are split up to work around OOM errors -- no combined testing is done
       # as it's simply too big for the compiler to handle on Windows.
       - name: Build / test

From 4464d55b9e01c7caa5c065273542be82ce4febf8 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 07:47:00 -0500
Subject: [PATCH 07/22] Split packages and build cache

---
 .github/workflows/ci.yml | 33 +++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f246cc9f..16050305 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -88,15 +88,22 @@ jobs:
         uses: dlang-community/setup-dlang@763d869b4d67e50c3ccd142108c8bca2da9df166
         with:
           compiler: ${{ matrix.dc }}
-      - name: Cache dub dependencies
+      - name: Cache dub packages (safe to share)
         uses: actions/cache@v4
         with:
           path: |
             ~/.dub/packages
+          key: macos-latest-build-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
+          restore-keys: |
+            macos-latest-build-dub-packages-
+      - name: Cache dub build cache (compiler-specific)
+        uses: actions/cache@v4
+        with:
+          path: |
             ~/Library/Caches/dub
           key: ${{ runner.os }}-dub-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            ${{ runner.os }}-dub-${{ matrix.dc }}-
+            ${{ runner.os }}-dub-cache-${{ matrix.dc }}-
       - name: Build / test
         run: |
           dub test --arch=$ARCH --build=unittest-cov
@@ -136,15 +143,22 @@ jobs:
       - name: Install multi-lib for 32-bit systems
         if: matrix.arch == 'x86'
         run: sudo apt-get update && sudo apt-get install gcc-multilib
-      - name: Cache dub dependencies
+      - name: Cache dub packages (safe to share)
         uses: actions/cache@v4
         with:
           path: |
             ~/.dub/packages
+          key: ubuntu-latest-build-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
+          restore-keys: |
+            ubuntu-latest-build-dub-packages
+      - name: Cache dub build cache (compiler-specific)
+        uses: actions/cache@v4
+        with:
+          path: |
             ~/.cache/dub
-          key: ${{ runner.os }}-dub-${{ matrix.arch }}-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
+          key: ${{ runner.os }}-dub-cache-${{ matrix.arch }}-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            ${{ runner.os }}-dub-${{ matrix.arch }}-${{ matrix.dc }}-
+            ${{ runner.os }}-dub-cache-${{ matrix.arch }}-${{ matrix.dc }}-
       - name: Build / test 
         run: |
           dub test --arch=$ARCH --build=unittest-cov
@@ -180,11 +194,18 @@ jobs:
         uses: dlang-community/setup-dlang@763d869b4d67e50c3ccd142108c8bca2da9df166
         with:
           compiler: ${{ matrix.dc }}
-      - name: Cache dub dependencies
+      - name: Cache dub packages (safe to share)
         uses: actions/cache@v4
         with:
           path: |
             ${{ env.APPDATA }}\dub\packages
+          key: windows-latest-build-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
+          restore-keys: |
+            windows-latest-build-dub-
+      - name: Cache dub build cache (compiler-specific)
+        uses: actions/cache@v4
+        with:
+          path: |
             ${{ env.LOCALAPPDATA }}\dub
           key: ${{ runner.os }}-dub-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |

From 582054bac0146b2d196dd477868c42631348ae93 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 22:05:55 -0500
Subject: [PATCH 08/22] Only generate coverage for stable compiler

---
 .github/workflows/ci.yml | 28 ++++++++++++++++++++++++----
 dub.sdl                  |  6 +++++-
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 16050305..c3624e0f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -104,7 +104,13 @@ jobs:
           key: ${{ runner.os }}-dub-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
             ${{ runner.os }}-dub-cache-${{ matrix.dc }}-
-      - name: Build / test
+      - name: Build / test (nightly compiler; no coverage)
+        if: contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')
+        run: |
+          dub test --arch=$ARCH --combined
+        shell: bash
+      - name: Build / test (stable compiler; with coverage)
+        if: !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master'))
         run: |
           dub test --arch=$ARCH --build=unittest-cov
           dub test --arch=$ARCH --combined
@@ -159,10 +165,16 @@ jobs:
           key: ${{ runner.os }}-dub-cache-${{ matrix.arch }}-${{ matrix.dc }}-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
             ${{ runner.os }}-dub-cache-${{ matrix.arch }}-${{ matrix.dc }}-
-      - name: Build / test 
+      - name: Build / test (nightly compiler; no coverage)
+        if: contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')
+        run: |
+          dub test --arch=$ARCH --combined
+        shell: bash
+      - name: Build / test (stable compiler; with coverage)
+        if: !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master'))
         run: |
           dub test --arch=$ARCH --build=unittest-cov
-          dub test --arch=$ARCH --combined 
+          dub test --arch=$ARCH --combined
         shell: bash
       - name: Upload coverage data
         uses: codecov/codecov-action@v5
@@ -212,13 +224,21 @@ jobs:
             ${{ runner.os }}-dub-${{ matrix.dc }}-
       # Tests are split up to work around OOM errors -- no combined testing is done
       # as it's simply too big for the compiler to handle on Windows.
-      - name: Build / test
+      - name: Build / test (nightly compiler; no coverage)
+        if: contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')
         run: |
           dub test --arch=$ARCH --build=unittest-ci -c ci-bignum-test
           dub test --arch=$ARCH --build=unittest-ci -c ci-core-test
           dub test --arch=$ARCH --build=unittest-ci -c ci-ndslice-test
           dub test --arch=$ARCH --build=unittest-ci -c ci-test
         shell: bash
+      - name: Build / test (stable compiler; with coverage)
+        if: !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master'))
+        run: |
+          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-bignum-test
+          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-core-test
+          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-ndslice-test
+          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-test
       - name: Upload coverage data
         uses: codecov/codecov-action@v5
         with:
diff --git a/dub.sdl b/dub.sdl
index e8085ba7..61fdef2a 100644
--- a/dub.sdl
+++ b/dub.sdl
@@ -42,10 +42,14 @@ buildType "unittest-cov" {
     versions "mir_bignum_test" "mir_bignum_test_llv" "mir_ndslice_test" "mir_test"
     dflags "-lowmem"
 }
-buildType "unittest-ci" {
+buildType "unittest-cov-ci" {
     buildOptions "unittests" "coverage" "debugMode" "debugInfo"
     dflags "-lowmem"
 }
+buildType "unittest-ci" {
+    buildOptions "unittests" "debugMode" "debugInfo"
+    dflags "-lowmem"
+}
 buildType "unittest-release" {
     buildOptions "unittests" "releaseMode" "optimize" "inline" "noBoundsCheck"
     versions "mir_bignum_test" "mir_ndslice_test" "mir_test"

From db562416994bc9f9c8cd84c4a85be8b5fffd9914 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 22:06:19 -0500
Subject: [PATCH 09/22] continue-on-error if beta or master compilers

---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c3624e0f..9a4efdb0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -81,6 +81,7 @@ jobs:
       fail-fast: false
       matrix:
         dc: ${{ fromJSON(needs.setup.outputs.compilers).macos }}
+    continue-on-error: ${{ contains(matrix.dc, 'beta') || contains(matrix.dc, 'master') }}
     steps:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
@@ -139,6 +140,7 @@ jobs:
       matrix:
         dc: ${{ fromJSON(needs.setup.outputs.compilers).ubuntu }}
         arch: [x86, x86_64]
+    continue-on-error: ${{ contains(matrix.dc, 'beta') || contains(matrix.dc, 'master') }}
     steps:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
@@ -199,6 +201,7 @@ jobs:
       fail-fast: false
       matrix:
         dc: ${{ fromJSON(needs.setup.outputs.compilers).windows }}
+    continue-on-error: ${{ contains(matrix.dc, 'beta') || contains(matrix.dc, 'master') }}
     steps:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579

From 52ee70cb5a4847e425cb5286d50f44d646a3a4f1 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 22:18:48 -0500
Subject: [PATCH 10/22] Fixups

---
 .github/workflows/ci.yml | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9a4efdb0..1386384c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -107,11 +107,10 @@ jobs:
             ${{ runner.os }}-dub-cache-${{ matrix.dc }}-
       - name: Build / test (nightly compiler; no coverage)
         if: contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')
-        run: |
-          dub test --arch=$ARCH --combined
+        run: dub test --arch=$ARCH --combined
         shell: bash
       - name: Build / test (stable compiler; with coverage)
-        if: !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master'))
+        if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         run: |
           dub test --arch=$ARCH --build=unittest-cov
           dub test --arch=$ARCH --combined
@@ -169,11 +168,10 @@ jobs:
             ${{ runner.os }}-dub-cache-${{ matrix.arch }}-${{ matrix.dc }}-
       - name: Build / test (nightly compiler; no coverage)
         if: contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')
-        run: |
-          dub test --arch=$ARCH --combined
+        run: dub test --arch=$ARCH --combined
         shell: bash
       - name: Build / test (stable compiler; with coverage)
-        if: !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master'))
+        if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         run: |
           dub test --arch=$ARCH --build=unittest-cov
           dub test --arch=$ARCH --combined
@@ -236,12 +234,13 @@ jobs:
           dub test --arch=$ARCH --build=unittest-ci -c ci-test
         shell: bash
       - name: Build / test (stable compiler; with coverage)
-        if: !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master'))
+        if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         run: |
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-bignum-test
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-core-test
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-ndslice-test
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-test
+        shell: bash
       - name: Upload coverage data
         uses: codecov/codecov-action@v5
         with:

From cbe9bae8f118c5dfdb1b94be3536a6d5bddcce09 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 22:20:50 -0500
Subject: [PATCH 11/22] Remove extra continue-on-error

---
 .github/workflows/ci.yml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1386384c..51eb2d24 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -81,7 +81,6 @@ jobs:
       fail-fast: false
       matrix:
         dc: ${{ fromJSON(needs.setup.outputs.compilers).macos }}
-    continue-on-error: ${{ contains(matrix.dc, 'beta') || contains(matrix.dc, 'master') }}
     steps:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
@@ -139,7 +138,6 @@ jobs:
       matrix:
         dc: ${{ fromJSON(needs.setup.outputs.compilers).ubuntu }}
         arch: [x86, x86_64]
-    continue-on-error: ${{ contains(matrix.dc, 'beta') || contains(matrix.dc, 'master') }}
     steps:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
@@ -199,7 +197,6 @@ jobs:
       fail-fast: false
       matrix:
         dc: ${{ fromJSON(needs.setup.outputs.compilers).windows }}
-    continue-on-error: ${{ contains(matrix.dc, 'beta') || contains(matrix.dc, 'master') }}
     steps:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579

From a2a1d872b1f0455382332bc211c0c4aaee4d88eb Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 22:25:21 -0500
Subject: [PATCH 12/22] Only upload coverage data if coverage reports generated

---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 51eb2d24..d6858df5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -115,6 +115,7 @@ jobs:
           dub test --arch=$ARCH --combined
         shell: bash
       - name: Upload coverage data
+        if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         uses: codecov/codecov-action@v5
         with:
             fail_ci_if_error: true
@@ -175,6 +176,7 @@ jobs:
           dub test --arch=$ARCH --combined
         shell: bash
       - name: Upload coverage data
+        if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         uses: codecov/codecov-action@v5
         with:
             fail_ci_if_error: true
@@ -239,6 +241,7 @@ jobs:
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-test
         shell: bash
       - name: Upload coverage data
+        if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         uses: codecov/codecov-action@v5
         with:
             fail_ci_if_error: true

From 9b3740f84389af3e29147cc83893b4e24d1994e3 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 22:28:41 -0500
Subject: [PATCH 13/22] Tweak runner.os

---
 .github/workflows/ci.yml | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d6858df5..059dc1f8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -93,9 +93,9 @@ jobs:
         with:
           path: |
             ~/.dub/packages
-          key: macos-latest-build-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
+          key: ${{ runner.os }}-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            macos-latest-build-dub-packages-
+            ${{ runner.os }}-dub-packages-
       - name: Cache dub build cache (compiler-specific)
         uses: actions/cache@v4
         with:
@@ -154,9 +154,9 @@ jobs:
         with:
           path: |
             ~/.dub/packages
-          key: ubuntu-latest-build-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
+          key: ${{ runner.os }}-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            ubuntu-latest-build-dub-packages
+            ${{ runner.os }}-dub-packages
       - name: Cache dub build cache (compiler-specific)
         uses: actions/cache@v4
         with:
@@ -211,9 +211,9 @@ jobs:
         with:
           path: |
             ${{ env.APPDATA }}\dub\packages
-          key: windows-latest-build-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
+          key: ${{ runner.os }}-dub-${{ hashFiles('**/dub.sdl', '**/dub.json', '**/dub.selections.json') }}
           restore-keys: |
-            windows-latest-build-dub-
+            ${{ runner.os }}-dub-
       - name: Cache dub build cache (compiler-specific)
         uses: actions/cache@v4
         with:

From 5142ee54fb1b48ad90142849d7907d9c528e454e Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:08:42 -0500
Subject: [PATCH 14/22] Update setup-dlang to latest

---
 .github/workflows/ci.yml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 059dc1f8..d34d4c6b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -85,7 +85,7 @@ jobs:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
       - name: Setup D compiler 
-        uses: dlang-community/setup-dlang@763d869b4d67e50c3ccd142108c8bca2da9df166
+        uses: dlang-community/setup-dlang@d7d85fcde7c4cd5f9a6618fce1bccc316e1e910b
         with:
           compiler: ${{ matrix.dc }}
       - name: Cache dub packages (safe to share)
@@ -143,7 +143,7 @@ jobs:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
       - name: Setup D compiler 
-        uses: dlang-community/setup-dlang@763d869b4d67e50c3ccd142108c8bca2da9df166
+        uses: dlang-community/setup-dlang@d7d85fcde7c4cd5f9a6618fce1bccc316e1e910b
         with:
           compiler: ${{ matrix.dc }}
       - name: Install multi-lib for 32-bit systems
@@ -203,7 +203,7 @@ jobs:
       - name: Checkout repo 
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
       - name: Setup D compiler 
-        uses: dlang-community/setup-dlang@763d869b4d67e50c3ccd142108c8bca2da9df166
+        uses: dlang-community/setup-dlang@d7d85fcde7c4cd5f9a6618fce1bccc316e1e910b
         with:
           compiler: ${{ matrix.dc }}
       - name: Cache dub packages (safe to share)
@@ -231,7 +231,7 @@ jobs:
           dub test --arch=$ARCH --build=unittest-ci -c ci-core-test
           dub test --arch=$ARCH --build=unittest-ci -c ci-ndslice-test
           dub test --arch=$ARCH --build=unittest-ci -c ci-test
-        shell: bash
+        shell: pwsh
       - name: Build / test (stable compiler; with coverage)
         if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         run: |
@@ -239,7 +239,7 @@ jobs:
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-core-test
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-ndslice-test
           dub test --arch=$ARCH --build=unittest-cov-ci -c ci-test
-        shell: bash
+        shell: pwsh
       - name: Upload coverage data
         if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         uses: codecov/codecov-action@v5

From 20b44a31b262f0701e623cf470329e328818bbb1 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:10:37 -0500
Subject: [PATCH 15/22] Add verify toolchain step

---
 .github/workflows/ci.yml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d34d4c6b..923dd1e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -206,6 +206,13 @@ jobs:
         uses: dlang-community/setup-dlang@d7d85fcde7c4cd5f9a6618fce1bccc316e1e910b
         with:
           compiler: ${{ matrix.dc }}
+      - name: Verify toolchain
+        shell: pwsh
+        run: |
+            Get-Command dmd, ldc2, dub -ErrorAction SilentlyContinue | Format-Table -AutoSize
+            Get-Command dub -all
+            dub --version
+            echo $env:Path
       - name: Cache dub packages (safe to share)
         uses: actions/cache@v4
         with:

From 0412313ebff920f3a95813c1513bad6bdd8d6f64 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:23:22 -0500
Subject: [PATCH 16/22] Updates for powershell and better toolchain
 verification

---
 .github/workflows/ci.yml | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 923dd1e6..21117e57 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -209,10 +209,10 @@ jobs:
       - name: Verify toolchain
         shell: pwsh
         run: |
-            Get-Command dmd, ldc2, dub -ErrorAction SilentlyContinue | Format-Table -AutoSize
-            Get-Command dub -all
-            dub --version
-            echo $env:Path
+            dmd --version 2>$null; if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
+            dub --version; if ($LASTEXITCODE -ne 0) { "dub not found"; exit 1 }
+            Write-Host "ARCH=$env:ARCH"
+            Write-Host "Path=$env:Path"
       - name: Cache dub packages (safe to share)
         uses: actions/cache@v4
         with:
@@ -234,18 +234,18 @@ jobs:
       - name: Build / test (nightly compiler; no coverage)
         if: contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')
         run: |
-          dub test --arch=$ARCH --build=unittest-ci -c ci-bignum-test
-          dub test --arch=$ARCH --build=unittest-ci -c ci-core-test
-          dub test --arch=$ARCH --build=unittest-ci -c ci-ndslice-test
-          dub test --arch=$ARCH --build=unittest-ci -c ci-test
+          dub test --arch=$env:ARCH --build=unittest-ci -c ci-bignum-test
+          dub test --arch=$env:ARCH --build=unittest-ci -c ci-core-test
+          dub test --arch=$env:ARCH --build=unittest-ci -c ci-ndslice-test
+          dub test --arch=$env:ARCH --build=unittest-ci -c ci-test
         shell: pwsh
       - name: Build / test (stable compiler; with coverage)
         if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}
         run: |
-          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-bignum-test
-          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-core-test
-          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-ndslice-test
-          dub test --arch=$ARCH --build=unittest-cov-ci -c ci-test
+          dub test --arch=$env:ARCH --build=unittest-cov-ci -c ci-bignum-test
+          dub test --arch=$env:ARCH --build=unittest-cov-ci -c ci-core-test
+          dub test --arch=$env:ARCH --build=unittest-cov-ci -c ci-ndslice-test
+          dub test --arch=$env:ARCH --build=unittest-cov-ci -c ci-test
         shell: pwsh
       - name: Upload coverage data
         if: ${{ !(contains(matrix.dc, 'beta') || contains(matrix.dc, 'master')) }}

From 1876ad9003371816c4721711cd7842949c4f149f Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:33:42 -0500
Subject: [PATCH 17/22] Enhance verify toolchain

---
 .github/workflows/ci.yml | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 21117e57..426913d6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -208,9 +208,22 @@ jobs:
           compiler: ${{ matrix.dc }}
       - name: Verify toolchain
         shell: pwsh
+        env:
+            DC_NAME: ${{ matrix.dc }}
         run: |
-            dmd --version 2>$null; if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
-            dub --version; if ($LASTEXITCODE -ne 0) { "dub not found"; exit 1 }
+            Write-Host "matrix.dc = $env:DC_NAME"
+            dub --version 2>$null
+            if ($LASTEXITCODE -ne 0) { "dub not found"; exit 1 }
+            
+            if ($env:DC_NAME -like "dmd.*") {
+                dmd --version 2>$null
+                if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
+            } else if ($env:DC_NAME -like "ldc.*") {
+                ldc2 --version 2>$null
+                if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
+            } else {
+                throw "Unknown compiler in matrix.dc: '$env:DC_NAME' (expected prefix 'dmd' or 'ldc')"
+            }
             Write-Host "ARCH=$env:ARCH"
             Write-Host "Path=$env:Path"
       - name: Cache dub packages (safe to share)

From 5824c38b1decbf3e9a4a42b5de3d2bed1272728f Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:35:13 -0500
Subject: [PATCH 18/22] Fix typo

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 426913d6..6a350521 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -218,7 +218,7 @@ jobs:
             if ($env:DC_NAME -like "dmd.*") {
                 dmd --version 2>$null
                 if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
-            } else if ($env:DC_NAME -like "ldc.*") {
+            } elseif ($env:DC_NAME -like "ldc.*") {
                 ldc2 --version 2>$null
                 if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
             } else {

From 9eabeefc78a7ac32e21feb21f1afa359179cfbc7 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:39:32 -0500
Subject: [PATCH 19/22] Update wildcard

---
 .github/workflows/ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6a350521..d9bc01be 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -215,10 +215,10 @@ jobs:
             dub --version 2>$null
             if ($LASTEXITCODE -ne 0) { "dub not found"; exit 1 }
             
-            if ($env:DC_NAME -like "dmd.*") {
+            if ($env:DC_NAME -like "dmd*") {
                 dmd --version 2>$null
                 if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
-            } elseif ($env:DC_NAME -like "ldc.*") {
+            } elseif ($env:DC_NAME -like "ldc*") {
                 ldc2 --version 2>$null
                 if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
             } else {

From 950b753db214f60f17b57b4f589b205406fa1401 Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:39:41 -0500
Subject: [PATCH 20/22] Change exit to throw

---
 .github/workflows/ci.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d9bc01be..98894495 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -213,14 +213,14 @@ jobs:
         run: |
             Write-Host "matrix.dc = $env:DC_NAME"
             dub --version 2>$null
-            if ($LASTEXITCODE -ne 0) { "dub not found"; exit 1 }
+            if ($LASTEXITCODE -ne 0) { throw "dub not found" }
             
             if ($env:DC_NAME -like "dmd*") {
                 dmd --version 2>$null
-                if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
+                if ($LASTEXITCODE -ne 0) { throw "dmd not found" }
             } elseif ($env:DC_NAME -like "ldc*") {
                 ldc2 --version 2>$null
-                if ($LASTEXITCODE -ne 0) { "dmd not found"; exit 1 }
+                if ($LASTEXITCODE -ne 0) { throw "ldc2 not found" }
             } else {
                 throw "Unknown compiler in matrix.dc: '$env:DC_NAME' (expected prefix 'dmd' or 'ldc')"
             }

From c018d6d9c8174765f48a8692e300f0456f15afed Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Fri, 9 Jan 2026 10:17:44 -0500
Subject: [PATCH 21/22] Add verify toolchain for ubuntu/macos

---
 .github/workflows/ci.yml | 74 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 98894495..579388e5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -88,6 +88,43 @@ jobs:
         uses: dlang-community/setup-dlang@d7d85fcde7c4cd5f9a6618fce1bccc316e1e910b
         with:
           compiler: ${{ matrix.dc }}
+      - name: Verify toolchain
+        shell: bash
+        env:
+          DC_NAME: ${{ matrix.dc }}
+        run: |
+          set -euo pipefail
+
+          echo "matrix.dc = ${DC_NAME}"
+
+          # dub must exist for all jobs
+          if ! command -v dub >/dev/null 2>&1; then
+            echo "ERROR: dub not found on PATH"
+            exit 1
+          fi
+          dub --version
+
+          if [[ "${DC_NAME}" == dmd* ]]; then
+            if ! command -v dmd >/dev/null 2>&1; then
+              echo "ERROR: dmd not found on PATH (matrix.dc=${DC_NAME})"
+              exit 1
+            fi
+            dmd --version
+
+          elif [[ "${DC_NAME}" == ldc* ]]; then
+            if ! command -v ldc2 >/dev/null 2>&1; then
+              echo "ERROR: ldc2 not found on PATH (matrix.dc=${DC_NAME})"
+              exit 1
+            fi
+            ldc2 --version
+
+          else
+            echo "ERROR: Unknown compiler in matrix.dc: '${DC_NAME}' (expected prefix 'dmd' or 'ldc')"
+            exit 1
+          fi
+
+          echo "ARCH=${ARCH:-<unset>}"
+          echo "PATH=${PATH}"
       - name: Cache dub packages (safe to share)
         uses: actions/cache@v4
         with:
@@ -149,6 +186,43 @@ jobs:
       - name: Install multi-lib for 32-bit systems
         if: matrix.arch == 'x86'
         run: sudo apt-get update && sudo apt-get install gcc-multilib
+      - name: Verify toolchain
+        shell: bash
+        env:
+          DC_NAME: ${{ matrix.dc }}
+        run: |
+          set -euo pipefail
+
+          echo "matrix.dc = ${DC_NAME}"
+
+          # dub must exist for all jobs
+          if ! command -v dub >/dev/null 2>&1; then
+            echo "ERROR: dub not found on PATH"
+            exit 1
+          fi
+          dub --version
+
+          if [[ "${DC_NAME}" == dmd* ]]; then
+            if ! command -v dmd >/dev/null 2>&1; then
+              echo "ERROR: dmd not found on PATH (matrix.dc=${DC_NAME})"
+              exit 1
+            fi
+            dmd --version
+
+          elif [[ "${DC_NAME}" == ldc* ]]; then
+            if ! command -v ldc2 >/dev/null 2>&1; then
+              echo "ERROR: ldc2 not found on PATH (matrix.dc=${DC_NAME})"
+              exit 1
+            fi
+            ldc2 --version
+
+          else
+            echo "ERROR: Unknown compiler in matrix.dc: '${DC_NAME}' (expected prefix 'dmd' or 'ldc')"
+            exit 1
+          fi
+
+          echo "ARCH=${ARCH:-<unset>}"
+          echo "PATH=${PATH}"
       - name: Cache dub packages (safe to share)
         uses: actions/cache@v4
         with:

From d0f81adb353f9297b80b3e86030b2c0225cdd59d Mon Sep 17 00:00:00 2001
From: jmh530 <jmh530@users.noreply.github.com>
Date: Fri, 9 Jan 2026 10:30:39 -0500
Subject: [PATCH 22/22] Add some additional diagnostic info for dub in macos

---
 .github/workflows/ci.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 579388e5..b667afde 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -102,6 +102,8 @@ jobs:
             echo "ERROR: dub not found on PATH"
             exit 1
           fi
+          which dub
+          file "$(which dub)" || true
           dub --version
 
           if [[ "${DC_NAME}" == dmd* ]]; then