Rollup of 8 pull requests

[Zalathar]

Successful merges:

• [cfg_match] Document the use of expressions. #135625 ([cfg_match] Document the use of expressions.)
• Manually walk into WF obligations in BestObligation proof tree visitor #135900 (Manually walk into WF obligations in BestObligation proof tree visitor)
• Rename Piece::String to Piece::Lit #135943 (Rename Piece::String to Piece::Lit)
• Add mermaid graphs of NLL regions and SCCs to polonius MIR dump #136104 (Add mermaid graphs of NLL regions and SCCs to polonius MIR dump)
• Update books #136143 (Update books)
• ABI-required target features: warn when they are missing in base CPU #136147 (ABI-required target features: warn when they are missing in base CPU)
• Render pattern types nicely in mir dumps #136176 (Render pattern types nicely in mir dumps)
• ci: remove unused windows runner #136192 (ci: remove unused windows runner)

r? @ghost
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[Zalathar]

@bors r+ rollup=never p=5

[bors]

📌 Commit e31f420 has been approved by Zalathar

It is now in the queue for this repository.

[rust-log-analyzer]

The job x86_64-gnu-llvm-18 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

#21 exporting to docker image format #21 sending tarball 31.9s done #21 DONE 44.8s ##[endgroup] Setting extra environment values for docker: --env ENABLE_GCC_CODEGEN=1 --env GCC_EXEC_PREFIX=/usr/lib/gcc/ [CI_JOB_NAME=x86_64-gnu-llvm-18] debug: `DISABLE_CI_RUSTC_IF_INCOMPATIBLE` configured. --- sccache: Starting the server... ##[group]Configure the build configure: processing command line configure: configure: build.configure-args := ['--build=x86_64-unknown-linux-gnu', '--llvm-root=/usr/lib/llvm-18', '--enable-llvm-link-shared', '--set', 'rust.randomize-layout=true', '--set', 'rust.thin-lto-import-instr-limit=10', '--enable-verbose-configure', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--set', 'rust.lld=false', '--disable-dist-src', '--release-channel=nightly', '--enable-debug-assertions', '--enable-overflow-checks', '--enable-llvm-assertions', '--set', 'rust.verify-llvm-ir', '--set', 'rust.codegen-backends=llvm,cranelift,gcc', '--set', 'llvm.static-libstdcpp', '--enable-new-symbol-mangling'] configure: target.x86_64-unknown-linux-gnu.llvm-config := /usr/lib/llvm-18/bin/llvm-config configure: llvm.link-shared := True configure: rust.randomize-layout := True configure: rust.thin-lto-import-instr-limit := 10 --- Compiling rustc_trait_selection v0.0.0 (/checkout/compiler/rustc_trait_selection) error[E0425]: cannot find value `DUMMY_SP` in this scope --> compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs:95:69 | 95 | wf::unnormalized_obligations(ocx.infcx, param_env, arg, DUMMY_SP, CRATE_DEF_ID) | help: consider importing one of these constants | 1 + use crate::traits::DUMMY_SP; 

[matthiaskrgr]

@bors r-

[fmease]

#135900 (also failed in CI job)