I really like the logging format of clang (pronounced klang, not C-lang), so I recreated it as an implementation of the log crate. It's licensed under the MIT license, and you can use it as you like. Use it, fork it, steal the code and sell it, I don't really care. If you find bugs, first of all, good job, because how can a logging implementation have bugs, and second of all, you can submit them to the issue tracker, or fix them and submit a PR. Additionally, if you want to improve clang_log, go ahead and waste five minuites writing a PR to change something.

To use clang_log, first include it, and log in Cargo.toml:

[dependencies]
log = "0.4.27"
clang_log = "2.1.2"

clang_log also has a feature flag; color. By removing this feature flag, you can remove color from the output.

[dependencies]
log = "0.4.27"
clang_log = { version = "2.1.2", default-features = false }

After adding clang_log to Cargo.toml, initialize it at the start of the program:

use log::Level;

fn main() {
    clang_log::init(Level::Trace, "clang")
}

You can also specify a minimum level to start outputting to stderr:

use log::Level;

fn main() {
    clang_log::init_error(Level::Trace, Level::Warn, "clang")
}

To use it, just use the macros provided by log

use log::*;

error!("Could not find files!");