Fix miri validation errors through now stricter provenance #252

Job	Run time
Test Suite (ubuntu-latest)	48s
Test Suite (windows-latest)	2m 1s
Check (stable)	14s
Clippy (stable)	21s
Test Suite (macOS-latest)	1m 4s
Test Suite	3m 33s
Test Suite (--no-default-features)	4m 42s
Rustfmt (stable)	6s
Miri	1m 17s
Test Suite (--features track-caller)	3m 24s
Test Suite (stable)	37s
Test Suite (--features auto-install)	3m 39s
Test Suite (stable, --no-default-features)	38s
Test Suite (stable, --features track-caller)	47s
Test Suite (stable, --features pyo3)	49s
Test Suite (stable, --features auto-install)	38s
Test Suite (stable, --all-features)	42s
Test Suite (beta)	43s
Test Suite (beta, --no-default-features)	44s
Test Suite (beta, --features track-caller)	56s
Test Suite (beta, --features pyo3)	48s
Test Suite (beta, --features auto-install)	55s
Test Suite (beta, --all-features)	49s
Test Suite (nightly)	1m 4s
Test Suite (nightly, --no-default-features)	1m 11s
Test Suite (nightly, --features track-caller)	1m 6s
Test Suite (nightly, --features pyo3)	1m 1s
Test Suite (nightly, --features auto-install)	57s
Test Suite (nightly, --all-features)	1m 7s
	36m 41s

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