Add option to change error constructor #170

Job	Run time
Rustdoc	28s
Tests (1.74.0, macos-latest)	58s
Tests (1.74.0, macos-latest, --features forbid_unsafe)	41s
Tests (1.74.0, ubuntu-latest)	35s
Tests (1.74.0, ubuntu-latest, --features forbid_unsafe)	32s
Tests (1.74.0, windows-latest)	1m 36s
Tests (1.74.0, windows-latest, --features forbid_unsafe)	1m 21s
Tests (1.82.0, macos-latest)	37s
Tests (1.82.0, macos-latest, --features forbid_unsafe)	37s
Tests (1.82.0, ubuntu-latest)	37s
Tests (1.82.0, ubuntu-latest, --features forbid_unsafe)	35s
Tests (1.82.0, windows-latest)	1m 53s
Tests (1.82.0, windows-latest, --features forbid_unsafe)	1m 8s
Tests (stable, macos-latest)	27s
Tests (stable, macos-latest, --features forbid_unsafe)	47s
Tests (stable, ubuntu-latest)	24s
Tests (stable, ubuntu-latest, --features forbid_unsafe)	25s
Tests (stable, windows-latest)	1m 48s
Tests (stable, windows-latest, --features forbid_unsafe)	1m 9s
Tests (beta, macos-latest)	56s
Tests (beta, macos-latest, --features forbid_unsafe)	50s
Tests (beta, ubuntu-latest)	35s
Tests (beta, ubuntu-latest, --features forbid_unsafe)	30s
Tests (beta, windows-latest)	1m 31s
Tests (beta, windows-latest, --features forbid_unsafe)	1m 32s
Tests (nightly, macos-latest)	1m 3s
Tests (nightly, macos-latest, --features forbid_unsafe)	54s
Tests (nightly, ubuntu-latest)	1m 0s
Tests (nightly, ubuntu-latest, --features forbid_unsafe)	51s
Tests (nightly, windows-latest)	1m 57s
Tests (nightly, windows-latest, --features forbid_unsafe)	2m 2s
	30m 19s

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