Add support for user provided closure to receive nonfatal errors #167

Job	Run time
cargo-deny	15s
Rustfmt [Formatter]	18s
Compile (x86_64-unknown-linux-musl)	16s
Clippy [Linter] (ubuntu-latest)	12s
Compile (wasm32-wasi)	14s
Clippy [Linter] (windows-latest)	1m 21s
Clippy [Linter] (macos-latest)	18s
Test Suite (ubuntu-latest, 1.70)	14s
Test Suite (ubuntu-latest, stable)	19s
Test Suite (ubuntu-latest, nightly)	15s
Test Suite (windows-latest, 1.70)	41s
Test Suite (windows-latest, stable)	1m 35s
Test Suite (windows-latest, nightly)	52s
Test Suite (macos-latest, 1.70)	26s
Test Suite (macos-latest, stable)	26s
Test Suite (macos-latest, nightly)	25s
	8m 7s

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