`PR - aarch64-gnu-llvm-20-2` is also running tidy, not just the `tidy` job

[scottmcm]

https://github.com/rust-lang/rust/actions/runs/19353107959/job/55368938647?pr=148725

[TIMING:end] tool::ToolBuild { build_compiler: Compiler { stage: 0, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu, tool: "tidy", path: "src/tools/tidy", mode: ToolBootstrap, source_type: InTree, extra_features: [], allow_features: "", cargo_args: [], artifact_kind: Binary } -- 11.648
[TIMING:end] tool::Tidy { compiler: Compiler { stage: 0, host: aarch64-unknown-linux-gnu, forced_compiler: false }, target: aarch64-unknown-linux-gnu } -- 0.000
fmt check
Diff in /checkout/library/core/src/ops/mod.rs:192:
 pub use self::range::{Range, RangeFrom, RangeFull, RangeTo};
 #[unstable(feature = "reborrow", issue = "145612")]
 pub use self::reborrow::{CoerceShared, Reborrow};
-#[unstable(feature = "try_trait_v2_residual", issue = "91285")]
-pub use self::try_trait::{Residual, residual_into_try_type};
 #[unstable(feature = "try_trait_v2_yeet", issue = "96374")]
 pub use self::try_trait::Yeet;
 pub(crate) use self::try_trait::{ChangeOutputType, NeverShortCircuit};
Diff in /checkout/library/core/src/ops/mod.rs:200:
 #[unstable(feature = "try_trait_v2", issue = "84277", old_name = "try_trait")]
 pub use self::try_trait::{FromResidual, Try};
+#[unstable(feature = "try_trait_v2_residual", issue = "91285")]
+pub use self::try_trait::{Residual, residual_into_try_type};
 #[unstable(feature = "coerce_unsized", issue = "18598")]
 pub use self::unsize::CoerceUnsized;
 #[unstable(feature = "dispatch_from_dyn", issue = "none")]
fmt: checked 6546 files
Bootstrap failed while executing `--stage 2 test --skip tests --skip coverage-map --skip coverage-run --skip library --skip tidyselftest`

I don't think it should be -- it's my understanding that we want the other jobs to be able to test things even when tidy fails (since the tidy job failing doesn't kill the other ones).