use std::os;
use extra::tempfile::TempDir;
fn main() {
    let temp_dir = TempDir::new("asdf").unwrap();
    os::change_dir(temp_dir.path());
}

task '<main>' failed at 'Unhandled condition: io_error:
io::IoError{kind: OtherIoError, desc: "resource busy or locked", detail: None}',

TempDir has Drop implementation of calling rmdir the dir, but it may fail (platform-dependent) if the task change_dired.
part of #10452: run-pass/glob-std.rs.