Rust 1.94.0

Language

Refer to Rust's

Stabilized APIs

• (excluding those that depend directly on the unstable f16 type)








• for manifests and configuration files. Note that using these features in Cargo.toml will raise your development MSRV, but the published manifest remains compatible with older parsers.

Compatibility Notes

• Some finer details of how precise closure captures get affected by pattern matching have been changed. In some cases, this can cause a non-move closure that was previously capturing an entire variable by move, to now capture only part of that variable by move, and other parts by borrow. This can cause the borrow checker to complain where it previously didn't, or cause Drop to run at a different point in time.


• ) is raised. This may raise a new warning ( This can cause previously working includes to no longer compile if they included files which started with a shebang.






• Any paths emitted by compiler now always respect the relative-ness of the paths and --remap-path-prefix given originally. One side-effect of this change is that paths emitted for local crates in Cargo (path dependencies and workspace members) are no longer absolute but relative when emitted as part of a diagnostic in a downstream crate.

Internal Changes

These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools.

• Switch to annotate-snippets for error emission This should preserve mostly the same outputs in rustc error messages.