provide more detailed error info and align messages stylistically (#63) #60

Job	Run time
clippy	39s
format	7s
cargo-test (stable, ubuntu-latest)	44s
cargo-test (stable, macos-latest)	50s
cargo-test (stable, windows-latest)	9m 45s
cargo-test (beta, ubuntu-latest)	51s
cargo-test (beta, macos-latest)	48s
cargo-test (beta, windows-latest)	8m 26s
cargo-test (nightly, ubuntu-latest)	51s
cargo-test (nightly, macos-latest)	52s
cargo-test (nightly, windows-latest)	10m 32s
	34m 25s

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