Rollup of 9 pull requests
Successful merges:
- #77939 (Ensure that the source code display is working with DOS backline)
- #78138 (Upgrade dlmalloc to version 0.2)
- #78967 (Make codegen tests compatible with extra inlining)
- #79027 (Limit storage duration of inlined always live locals)
- #79077 (document that __rust_alloc is also magic to our LLVM fork)
- #79088 (clarify `span_label` documentation)
- #79097 (Code block invalid html tag lint)
- #79105 (std: Fix test `symlink_hard_link` on Windows)
- #79107 (build-manifest: strip newline from rustc version)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
efcb3b3920