Flycheck#23
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Add support for tier 3 targets bpfeb-unknown-none and bpfel-unknown-none (see https://github.com/rust-lang/rust/blob/f5e2df7/src/doc/rustc/src/platform-support.md?plain=1#L311-L312). This is modeled after bazelbuild#3507 and should probably be updated if/when bazelbuild/platforms#131 is merged. (please use rebase merge when landing this as the proper commit message is in the commit, rather than the PR description) /cc @avrabe
…elbuild#3829)" This reverts commit f198dde.
…() (bazelbuild#3816)" This reverts commit 9586468.
…#3) * 0 * Add rust analyzer test coverage
…hollow rlibs: the RustcMetadata action runs rustc to completion with -Zno-codegen, emitting a .rlib archive. This approach mirrors the one used by buck2 and avoids needing to kill rustc mid-output in order to produce metadata. While not fixing problems with SVH mismatches when non-determinism, this does simplify the codepath and uses a production tested technique that doesn't have any of the dangers associated with killing the rustc process while it's still active.
Port the sharding wrapper feature from bazelbuild#3774 into the hermeticbuild fork. The implementation wraps rust_test executables when experimental_enable_sharding is set while keeping rustc_compile_action's existing provider-list API for internal and extension callers. rust_test now scans the returned providers to replace DefaultInfo for the wrapper, so extensions such as prost and wasm-bindgen continue to consume rustc_compile_action without API churn. Co-authored-by: Brian Duff <bduff@linkedin.com> Co-authored-by: Codex <noreply@openai.com>
Rustc emits GNU-like Windows staticlibs as lib<crate>.a, but rules_rust was stripping the lib prefix for all Windows non-rlib library outputs. Keep the prefix for staticlib outputs when the target ABI is gnu or gnullvm so declared outputs match rustc.
Keep cargo build script inputs available to their direct dependent without propagating them through transitive Rustc inputs. compile_data remains reserved for files that need to stay available to downstream consumers, such as generated link inputs. Update the existing cargo_build_script propagation test to distinguish the direct-dependent case from the transitive case. Co-authored-by: Codex <noreply@openai.com>
* When '--strategy=Rustc=local' is used with pipelined compilation, rustc's -Ldependency scan can pick up the _meta.rlib alongside the full '.rlbi', producing undefined-symbol link errors. To avoid this, emit the hollow metadata rlibs into a '_meta/' subdirectory, and add an explicit link to that directory for any metadata-consuming actions. (#17) * Add RUSTC_BOOTSTRAP guardrail for -Zno-codegen pipelining Injects RUSTC_BOOTSTRAP=1 + -Zallow-features= (empty list) on the metadata and full compile actions when pipelined_compilation is enabled on a stable/beta toolchain. The bootstrap env is required for -Zno-codegen on non-nightly rustc and must match across both actions for SVH compatibility. The empty allow-features list prevents the bootstrap env from silently unlocking #![feature(...)] in user code. Nightly toolchains skip both injections: unstable features are already allowed, and the guardrail would break legitimate #![feature(...)] usage. Escape hatch: if the user sets RUSTC_BOOTSTRAP in rustc_env / shell env or passes -Zallow-features=... via rustc_flags / extra_rustc_flag, rules_rust treats their configuration as authoritative and skips both injections. Tests: - //test/pipelining_bootstrap_gate: manual target that #![feature(trait_alias)] to validate E0725 fires on stable under the guardrail. - //test/unit/pipelined_compilation: guardrail_{baseline,user_env,user_flag, space_form,global_env,global_flag}_optout_test variants.
dzbarsky
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May 28, 2026
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| env = {k: v for k, v in rustc_action.env.items()} if rustc_action.env else {} |
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env = dict(rustc_action.env or {})? or just inline this bit below?
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