Nov 30 00:50:47.689 INFO checking jmacdonald/bright against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 00:50:47.689 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 00:50:47.928 INFO [stdout] 9c57a6776b513090236ad8b71b67f0d95d539202ed6196549c0260378e8ba992
Nov 30 00:50:47.934 INFO running `"docker" "start" "-a" "9c57a6776b513090236ad8b71b67f0d95d539202ed6196549c0260378e8ba992"`
Nov 30 00:50:48.974 INFO [stderr] usermod: no changes
Nov 30 00:50:49.036 INFO [stderr]     Checking bright v0.1.0 (/source)
Nov 30 00:50:49.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 00:50:49.492 INFO [stderr]   --> src/main.rs:17:5
Nov 30 00:50:49.492 INFO [stderr]    |
Nov 30 00:50:49.492 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Nov 30 00:50:49.492 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Nov 30 00:50:49.492 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Nov 30 00:50:49.492 INFO [stderr]    | |_________________________________________________^
Nov 30 00:50:49.492 INFO [stderr]    |
Nov 30 00:50:49.492 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 00:50:49.492 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 00:50:49.492 INFO [stderr] 
Nov 30 00:50:49.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 00:50:49.493 INFO [stderr]   --> src/main.rs:28:5
Nov 30 00:50:49.493 INFO [stderr]    |
Nov 30 00:50:49.493 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Nov 30 00:50:49.493 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Nov 30 00:50:49.493 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Nov 30 00:50:49.493 INFO [stderr]    | |_____________________________________________^
Nov 30 00:50:49.493 INFO [stderr]    |
Nov 30 00:50:49.493 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 00:50:49.493 INFO [stderr] 
Nov 30 00:50:49.631 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 00:50:49.631 INFO [stderr]   --> src/main.rs:17:5
Nov 30 00:50:49.631 INFO [stderr]    |
Nov 30 00:50:49.631 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Nov 30 00:50:49.631 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Nov 30 00:50:49.631 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Nov 30 00:50:49.631 INFO [stderr]    | |_________________________________________________^
Nov 30 00:50:49.631 INFO [stderr]    |
Nov 30 00:50:49.631 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 00:50:49.632 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 00:50:49.632 INFO [stderr] 
Nov 30 00:50:49.632 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 00:50:49.632 INFO [stderr]   --> src/main.rs:28:5
Nov 30 00:50:49.632 INFO [stderr]    |
Nov 30 00:50:49.632 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Nov 30 00:50:49.632 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Nov 30 00:50:49.632 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Nov 30 00:50:49.632 INFO [stderr]    | |_____________________________________________^
Nov 30 00:50:49.632 INFO [stderr]    |
Nov 30 00:50:49.632 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 00:50:49.632 INFO [stderr] 
Nov 30 00:50:49.670 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Nov 30 00:50:49.671 INFO [stderr] su: No module specific data is present
Nov 30 00:50:50.226 INFO running `"docker" "inspect" "9c57a6776b513090236ad8b71b67f0d95d539202ed6196549c0260378e8ba992"`
Nov 30 00:50:50.434 INFO running `"docker" "rm" "-f" "9c57a6776b513090236ad8b71b67f0d95d539202ed6196549c0260378e8ba992"`
Nov 30 00:50:50.661 INFO [stdout] 9c57a6776b513090236ad8b71b67f0d95d539202ed6196549c0260378e8ba992