Rust

docs: deduplicate spaces #1134

Job	Run time
rustfmt	24s
features (stable, ubuntu-latest)	6m 12s
clippy (stable)	2m 57s
features (stable, macos-latest)	5m 43s
Release x86_64-unknown-linux-gnu	2m 4s
clippy (beta)	1m 34s
features (stable, windows-latest)	8m 14s
test (stable, ubuntu-latest)	2m 4s
Release aarch64-unknown-linux-gnu	1m 50s
clippy (nightly)	1m 42s
features (beta, ubuntu-latest)	5m 41s
test (stable, macos-latest)	1m 55s
Release armv7-unknown-linux-gnueabihf	1m 59s
test (stable, windows-latest)	4m 34s
features (beta, macos-latest)	5m 8s
Release arm-unknown-linux-gnueabihf	2m 39s
test (beta, ubuntu-latest)	2m 20s
features (beta, windows-latest)	8m 58s
Release riscv64gc-unknown-linux-gnu	1m 41s
test (beta, macos-latest)	1m 37s
Release x86_64-apple-darwin	1m 9s
test (beta, windows-latest)	3m 42s
Release aarch64-apple-darwin	1m 4s
test (nightly, ubuntu-latest)	1m 46s
Release x86_64-pc-windows-msvc	2m 37s
test (nightly, macos-latest)	1m 53s
Release aarch64-pc-windows-msvc	3m 24s
test (nightly, windows-latest)	3m 26s
	1h 28m 17s

Provide feedback