Rollup of 5 pull requests - #72228

Closed

RalfJung wants to merge 20 commits into

rust-lang:masterfrom

RalfJung:rollup-686s7c9

Commits on Apr 8, 2020

Add inherent impls for unchecked math intrinsics
CAD97
committed
b70e7fd
Redesign the Step trait
CAD97
committed
2fcfd23
Adjust Step::forward_checked docs for large types

CAD97
and
Nadrieril
committed
f34322d

Commits on May 9, 2020

Small doc improvements.
Julian-Wollersberger
committed
e734e31

Commits on May 10, 2020

rustc_driver: factor out computing the exit code
RalfJung
committed
23d880b
rustc_driver::main: more informative return type
RalfJung
committed
51e466d
cmdline: Make target features individually overridable
petrochenkov
committed
00dcb66

Commits on May 13, 2020

Commits on May 14, 2020

improve step_integer_impls macro
CAD97
committed
d53068e

Commits on May 15, 2020