Rollup of 8 pull requests Successful merges: - #121206 (Top level error handling) - #121261 (coverage: Remove `pending_dups` from the span refiner) - #121336 (triagebot: add queue notifications) - #121373 (Consistently refer to a test's `revision` instead of `cfg`) - #121391 (never patterns: Fix liveness analysis in the presence of never patterns) - #121392 (Unify dylib loading between proc macros and codegen backends) - #121399 (Solaris linker does not support --strip-debug) - #121406 (Add a couple tests) r? `@ghost` `@rustbot` modify labels: rollup