Merge pull request #1360 from EliahKagan/archives-env-var #4215

Job	Run time
test	22m 45s
pure-rust-build	1m 56s
installation (win-msvc)	4m 11s
test-32bit (armv7-linux-androideabi)	1m 23s
installation (win-gnu)	3m 58s
test-fast (windows-latest)	13m 40s
installation (win32-msvc)	4m 11s
test-fast (macos-latest)	2m 19s
installation (win32-gnu)	4m 13s
cargo-deny (advisories)	29s
test-fast (ubuntu-latest)	3m 5s
cargo-deny (bans licenses sources)	31s
check-packetline (ubuntu-latest)	7s
lint	3m 50s
WebAssembly (wasm32-unknown-unknown)	1m 2s
WebAssembly (wasm32-wasi)	36s
	1h 8m 16s

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