build

Prepare 0.12.2 release #204

Job	Run time
fmt	21s
codecov	2m 26s
clippy	1m 1s
build (stable, --features "")	30s
build (stable, --all-features)	1m 42s
build (stable, --no-default-features)	49s
test	2m 20s
build (1.71, --features "")	42s
build (1.71, --all-features)	1m 54s
build (1.71, --no-default-features)	27s
build (beta, --features "")	45s
build (beta, --all-features)	1m 43s
build (beta, --no-default-features)	56s
build (nightly, --features "")	41s
build (nightly, --all-features)	1m 42s
build (nightly, --no-default-features)	33s
	18m 32s

Provide feedback