Rust Unexplained Error Finder

find_errors.py

# Run from within src

import subprocess

for err_no in range(500):
    err_string = "E%04d" % err_no

    # Determine if the error needs a message.
    try:
        subprocess.check_output(["git", "grep", err_string + ",", "librustc/diagnostics.rs"])
    except Exception:
        continue

    # Print its location.
    location_line = subprocess.check_output(["git", "grep", err_string + ","]).splitlines()[-1].decode()
    location = location_line[0 : location_line.find(": ")]
    print("- [ ] {} in {}".format(err_string, location))