Update rust edition #36

Job	Run time
Lints	26s
Test Suite (ubuntu-latest, stable)	20s
Check (ubuntu-latest, stable)	14s
Test Suite (ubuntu-latest, beta)	19s
Check (ubuntu-latest, beta)	15s
Test Suite (ubuntu-latest, nightly)	18s
Check (ubuntu-latest, nightly)	15s
Test Suite (macos-latest, stable)	32s
Check (macos-latest, stable)	26s
Test Suite (macos-latest, beta)	31s
Check (macos-latest, beta)	44s
Test Suite (macos-latest, nightly)	43s
Check (macos-latest, nightly)	26s
Test Suite (windows-latest, stable)	1m 59s
Check (windows-latest, stable)	39s
Test Suite (windows-latest, beta)	45s
Check (windows-latest, beta)	42s
Test Suite (windows-latest, nightly)	49s
Check (windows-latest, nightly)	35s
	10m 58s

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