Bump nix to 0.29, bump MSRV, refactor tests #16
Merged
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Closes #15
In the process, I removed the direct dependency on
libc
. I also found that the tests are a bit flaky when run in parallel (which is the default forcargo test
), so I changed the CI to only use one thread. The flakiness is increased whenclose
is called multiple times to check that a file was indeed closed (/ to check that the behavior ofclose
matches the expected behavior). I disabled this extra closing by default and added thetest-close-again
feature to turn it on (as it is in CI).