colerr will wrap a given process and colorize it's standard error output.
colerr is written in rust programming language and utilizes:
mio and mioco libraries. You probably don't care, but it's kind
of important so I've mentioned it here.
You need rust compiler bundled with cargo. Then cargo build --release should do the job.
Resulting binary will be in ./target/release/colerr. Just copy it to somewhere to your $PATH.
Usage:
colorout [--] <cmd>...
colerr works by spawning a IO-handling child process that takes care of
colorizing output. The parent process exec-s the requested command with
stdin, stdout and stderr routed to a child.
This way colerr can be used as a drop-in replacement, as the colerr-ed PID
will be the PID of the wrapped command. All signals etc. will be handled by the
wrapped process itself, the only difference being a standard IO being handled
by additional child process.