Rollup of 16 pull requests#58361

Merged

bors merged 36 commits intorust-lang:masterfrom

GuillaumeGomez:rollup

Feb 11, 2019

Commits on Jan 9, 2019

Commits on Jan 18, 2019

Use `to_ne_bytes` for converting IPv4Address to octets
JakubOnderka
authored

Commits on Jan 26, 2019

Tiny improvement to docs for `core::convert`.
icefoxen
committed

Commits on Feb 4, 2019

Add Cargo.lock automatically adding message
h-michael
committed

Commits on Feb 6, 2019

display sugared return types for async functions
euclio
committed

Commits on Feb 7, 2019

Add #[must_use] message to Fn* traits
taiki-e
committed

Commits on Feb 8, 2019

Commits on Feb 9, 2019

Commits on Feb 10, 2019