Task messages sometimes overlap with std:log outputs

[calebzulawski]

In scripts with many std:log:warn outputs, sometimes the outputs of std:task messages overlap with the warnings in the terminal (and end up somewhat garbled). I think this only happens with terminals and not when redirecting output to a file.

[afranchuk]

What do you mean by std:task messages? Can you provide an example?

[calebzulawski]

I found this when working on CACI-International/ergo-cpp#8, e.g. a logged warning might look something like:

warn: unused variable `i`

and a std:task message might look something like:

* compiling `some/long/path/to/source.cpp`

Sometimes they seem to collide, and you end up with messages that look something like:

warn: unused variable `i`th/to/source.cpp`

[afranchuk]

Hmm, that shouldn't be possible, that's all buffered and rendered. I have seen that behavior when there are programs running which write directly to /dev/tty (which will just generally mess with the rendering state). I believe it would also occur with std:io:stderr as that doesn't pause the rendering like std:io:stdout does (maybe that should change).