Merge pull request #1388 from google/msrv #2005

Job	Run time
Clippy	3m 14s
Test forcing wrapper generation	10m 48s
Examples Rust nightly	6m 21s
Address Sanitizer	16m 23s
Examples Rust beta	6m 16s
Test Rust nightly	9m 37s
Examples Rust stable	5m 18s
Test Rust beta	11m 2s
Examples macOS	5m 30s
Docs	3m 52s
Test Rust stable	11m 52s
Format	12s
Examples Windows (gnu)	9m 29s
Examples Windows (msvc)	7m 28s
Outdated	13s
Test macOS	9m 55s
Test Windows (msvc)	14m 20s
	2h 11m 50s

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