Rust

imp: add support for custom executors (#728) #1582

Job	Run time
wasm-build	46s
clippy	1m 16s
build (stable, ubuntu)	4m 22s
build (stable, ubuntu, -F stream)	4m 33s
build (stable, macos)	3m 44s
build (stable, macos, -F stream)	3m 43s
build (stable, windows)	7m 12s
build (stable, windows, -F stream)	7m 39s
build (beta, ubuntu)	4m 41s
build (beta, ubuntu, -F stream)	4m 28s
build (beta, macos)	3m 18s
build (beta, macos, -F stream)	3m 30s
build (beta, windows)	7m 6s
build (beta, windows, -F stream)	7m 12s
build (nightly, ubuntu)	2m 59s
build (nightly, ubuntu, -F stream)	3m 0s
build (nightly, macos)	3m 52s
build (nightly, macos, -F stream)	4m 20s
build (nightly, windows)	7m 7s
build (nightly, windows, -F stream)	7m 8s
	1h 31m 56s

Provide feedback