Rollup of 10 pull requests Successful merges: - rust-lang/rust#154973 (Break a single query cycle in the deadlock handler) - rust-lang/rust#155034 (Implement `GenericTypeVisitable` for some types) - rust-lang/rust#151377 (Fix linker error by resolving regions for main return type obligations) - rust-lang/rust#154677 (hwaddress: automatically add `-Ctarget-feature=+tagged-globals`) - rust-lang/rust#154774 (Add myself as co-maintainer for hexagon-unknown-linux-musl) - rust-lang/rust#155015 (Add tests for three fixed issues (an LLVM crash, an ICE and poor codegen)) - rust-lang/rust#155039 (minor follow up to removing soft mode `#[unstable]`) - rust-lang/rust#155043 (Fix if branch in op.rs) - rust-lang/rust#155071 (Deny `#[global_allocator]` + `#[thread_local]`) - rust-lang/rust#155072 (Set the Fuchsia ABI to the documented minimum)