WIP: experiment with `rustfmt` options #314

Job	Run time
block-autosquash-commits	0s
cargo-deny	22s
Check (ubuntu-latest, stable)	33s
Rustfmt (stable)	11s
Check (ubuntu-latest, beta)	35s
Check (windows-latest, stable)	1m 46s
Check (windows-latest, beta)	1m 19s
Check (macOS-latest, stable)	29s
Check (macOS-latest, beta)	49s
Documentation (stable)	32s
Clippy (stable)	35s
Documentation (beta)	35s
Test Suite (ubuntu-latest, stable)	53s
Clippy (beta)	36s
Test Suite (ubuntu-latest, beta)	53s
Test Suite (windows-latest, stable)	3m 12s
Test Suite (windows-latest, beta)	2m 1s
Test Suite (macOS-latest, stable)	56s
Test Suite (macOS-latest, beta)	53s
	17m 10s

Provide feedback