Some test cases are being skipped in CI?

[kt3k]

Starting from this build https://travis-ci.com/denoland/deno/jobs/147902463, the log output of test cases in CI seems incomplete. (The unit tests seem stopping in the middle without error.)

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update:
When I set DENO_BUILD_MODE=release, the same thing happens on my local machine (mac).

[kevinkassimo]

Same thing happened to me. Seems that most async tests are dead.

This is pretty bad.

[kevinkassimo]

An interesting discovery (purely by luck): by introducing debug!(...) statements in ntasks_increment and ntasks_decrement, I was able to allow tests to run normally again without skipping... @piscisaureus I believe you mentioned about a Rust compiler bug before? This seems unexpectedly mitigates the issue on my machine...

[ry]

It seems we have some sort of memory corruption happening - somewhere. I haven’t experienced it yet but we need to correct it.

Chrome has all sorts of memory check tools
https://www.chromium.org/developers/testing/addresssanitizer
https://www.chromium.org/developers/testing/memorysanitizer
It shouldn’t be too much work to hook into these - I think it could be helpful debugging this issue.

See also this recent commit 97e08a6

[ry]

Related fix: cfa54ca

[kt3k]

Now all test cases seem passing in CI. Thanks for the fixes!