cargo check doesn't display colored messages

[lilianmoraru]

Running cargo check(now in Rust 1.16) with --color=always, displays everything in red(compilation messages, warnings, errors...).

[alygin]

What OS do you use? Such behaviour is expected on Windows because cargo and rustc don't emit correct ansi codes for msys terminals. You can find more details in #646, and here's the issue for Stebalien/term.

[alygin]

Oh, and on other platforms we don't colorize output for cargo check. As far as I remember, it didn't emit colors in the past. But it does now, so we can treat it as a color supporting command.

[lilianmoraru]

To answer to the question: it is Linux(the OS).

[alygin]

Yeah, I should've guessed that. Just forgot that we deliberately excluded cargo check from the white list of colorizable commands.