Merge pull request #1420 from rust-ndarray/ci #249

Job	Run time
clippy/stable	33s
cargo-careful	2m 20s
docs/stable	23s
format/nightly	17s
cross_test/s390x-unknown-linux-gnu/stable	6m 29s
nostd/thumbv6m-none-eabi/stable	19s
cross_test/i686-unknown-linux-gnu/stable	2m 5s
tests/stable	2m 49s
tests/beta	2m 57s
tests/nightly	3m 21s
tests/1.64.0	6m 9s
conclusion	1s
	27m 43s

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