ProgressBar.println prints to stderr as default

[silvioprog]

The smallest project to reproduce:

use indicatif::ProgressBar;

fn main() {
    let pb = ProgressBar::new_spinner();
    pb.println("Calculating...");
}

cargo build
./target/debug/app > msg.txt # Empty content 🙁
./target/debug/app 2> msg.txt # Filled content 🙂

Is this a bug or a behavior by design? (anyway, I solved in my project "temporary" using ProgressDrawTarget::stdout())

cheers

[djc]

Yes, I think this is by design. As I understand it, status information on the currently running command is usually printed to stderr, so that stdout can be used to print output data from the command (which can then conveniently be piped into a file).

[djc]

Going to close this, feel free to reopen if you still think there is an issue.