anchor build error, anchor --version： 0.32.1

[0xAdherent]

program-examples/tokens/nft-minter/anchor$ anchor build
error: failed to download constant_time_eq v0.4.2

Caused by:
unable to get packages from source

Caused by:
failed to parse manifest at /home/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/constant_time_eq-0.4.2/Cargo.toml

Caused by:
feature edition2024 is required

The package requires the Cargo feature called edition2024, but that feature is not stabilized in this version of Cargo (1.84.0 (12fe57a9d 2025-04-07)).
Consider trying a more recent nightly release.
See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#edition-2024 for more information about the status of this feature.

[Perelyn-sama]

temporary fix, use these versions:

anchor-lang = "1.0.0-rc.2"
anchor-spl = "1.0.0-rc.2"

[0xAdherent]

program-examples/tokens/nft-minter/anchor$ anchor build
WARNING: anchor-lang version(1.0.0-rc.2) and the current CLI version(0.32.1) don't match.

This can lead to unwanted behavior. To use the same CLI version, add:

[toolchain]
anchor_version = "1.0.0-rc.2"

to Anchor.toml

anchor build
anchor 1.0.0-rc.2 is not installed with avm. Installing...

Error: Could not find anchor-cli version for commit: Response { url: Url { scheme: "https", cannot_be_a_base: false, username: "", password: None, host: Some(Domain("raw.githubusercontent.com")), port: None, path: "/coral-xyz/anchor/rc.2/cli/Cargo.toml", query: None, fragment: None }, status: 404, headers: {"content-security-policy": "default-src 'none'; style-src 'unsafe-inline'; sandbox", "strict-transport-security": "max-age=31536000", "x-content-type-options": "nosniff", "x-frame-options": "deny", "x-xss-protection": "1; mode=block", "content-type": "text/plain; charset=utf-8", "x-github-request-id": "1A1D:33F3EC:3D97C:802D8:696653C3", "accept-ranges": "bytes", "date": "Tue, 13 Jan 2026 14:16:36 GMT", "via": "1.1 varnish", "x-served-by": "cache-nrt-rjtf7700106-NRT", "x-cache": "MISS", "x-cache-hits": "0", "x-timer": "S1768313796.167531,VS0,VE202", "vary": "Authorization,Accept-Encoding", "access-control-allow-origin": "*", "cross-origin-resource-policy": "cross-origin", "x-fastly-request-id": "af397b486930bccd48777a9aef43b087a42d7c8e", "expires": "Tue, 13 Jan 2026 14:21:36 GMT", "source-age": "0", "content-length": "14"} }
Failed to install anchor: failed to install anchor 1.0.0-rc.2 with avm, using 0.32.1 instead
WARNING: anchor-lang version(1.0.0-rc.2) and the current CLI version(0.32.1) don't match.

This can lead to unwanted behavior. To use the same CLI version, add:

[toolchain]
anchor_version = "1.0.0-rc.2"

to Anchor.toml

[a-hariti]

this is due to a transitive dependency issue, this worked for me

cargo update blake3 --precise 1.5.5