Rollup of 8 pull requests#115900

Merged

bors merged 19 commits intorust-lang:masterfrom

matthiaskrgr:rollup-3ba15da

Sep 16, 2023

Commits on Aug 26, 2023

Document std limitations before/after main
the8472
committed

Commits on Aug 28, 2023

Commits on Sep 2, 2023

Improve documentation on when signes are printed by default
ModProg
authored

Commits on Sep 6, 2023

Update doc for `alloc::format!` and `core::concat!`
ShE3py
committed

Commits on Sep 14, 2023

Commits on Sep 16, 2023