Labels

Area: `#[test]` / the `test` library

Area: Compiler licensing

Area: Lifetimes / regions

rustdoc --generate-link-to-definition nightly-only feature

Area: linking into static, shared libraries and binaries

Area: linkers... you gotta love linkers

Area: lint levels

Area: Lints (warnings about flaws in source code) such as unused_mut.

Area: Linkage issues specific to rust-lld

Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

Area: LLVM bintools (`llvm-nm` et.). Note that `llvm-tools{,-preview` has no stability guarantees.

Area: Documentation that has been locally re-exported (i.e., non-cross-crate)

Area: Link-time optimization (LTO)

Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

Area: Markdown parsing for doc-comments

Something we may consider for a future edition.

`#[feature(member_constraints)]`

Area: Issues & PRs about the rust-lang/rust repository itself

Area: Crate metadata

Area: Method lookup (typeck, post `rustc_resolve`, not to be confused with `A-resolve`)

Area: Metrics

Area: Mid-level IR (MIR) - https://blog.rust-lang.org/2016/04/19/MIR.html

Area: MIR optimizations

Area: MIR opt Global Value Numbering (GVN)

Area: MIR inlining

Fixed by the Named Return Value Opt. (NRVO)

Area: The miri tool

Area: Monomorphization

Area: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

Area: Name mangling / decoration aka symbol mangling