Dec 17 22:13:35.093 INFO checking jmacdonald/bright against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:13:35.094 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/jmacdonald/bright:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:13:35.306 INFO [stdout] 69b1d07f3934de3ceebb583c2142d27a1157005d32b4a40b9b46adb44a249e8e
Dec 17 22:13:35.310 INFO running `"docker" "start" "-a" "69b1d07f3934de3ceebb583c2142d27a1157005d32b4a40b9b46adb44a249e8e"`
Dec 17 22:13:36.160 INFO [stderr]     Checking bright v0.1.0 (/opt/crater/workdir)
Dec 17 22:13:36.368 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:13:36.368 INFO [stderr]   --> src/main.rs:17:5
Dec 17 22:13:36.368 INFO [stderr]    |
Dec 17 22:13:36.368 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Dec 17 22:13:36.368 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Dec 17 22:13:36.368 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Dec 17 22:13:36.368 INFO [stderr]    | |_________________________________________________^
Dec 17 22:13:36.368 INFO [stderr]    |
Dec 17 22:13:36.368 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 22:13:36.368 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:13:36.368 INFO [stderr] 
Dec 17 22:13:36.368 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:13:36.368 INFO [stderr]   --> src/main.rs:28:5
Dec 17 22:13:36.368 INFO [stderr]    |
Dec 17 22:13:36.368 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Dec 17 22:13:36.368 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Dec 17 22:13:36.368 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Dec 17 22:13:36.368 INFO [stderr]    | |_____________________________________________^
Dec 17 22:13:36.368 INFO [stderr]    |
Dec 17 22:13:36.368 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:13:36.368 INFO [stderr] 
Dec 17 22:13:36.420 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:13:36.420 INFO [stderr]   --> src/main.rs:17:5
Dec 17 22:13:36.420 INFO [stderr]    |
Dec 17 22:13:36.420 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Dec 17 22:13:36.420 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Dec 17 22:13:36.420 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Dec 17 22:13:36.420 INFO [stderr]    | |_________________________________________________^
Dec 17 22:13:36.420 INFO [stderr]    |
Dec 17 22:13:36.420 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 22:13:36.420 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:13:36.420 INFO [stderr] 
Dec 17 22:13:36.420 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 22:13:36.420 INFO [stderr]   --> src/main.rs:28:5
Dec 17 22:13:36.420 INFO [stderr]    |
Dec 17 22:13:36.420 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Dec 17 22:13:36.420 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Dec 17 22:13:36.420 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Dec 17 22:13:36.420 INFO [stderr]    | |_____________________________________________^
Dec 17 22:13:36.420 INFO [stderr]    |
Dec 17 22:13:36.420 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 22:13:36.420 INFO [stderr] 
Dec 17 22:13:36.435 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
Dec 17 22:13:36.870 INFO running `"docker" "inspect" "69b1d07f3934de3ceebb583c2142d27a1157005d32b4a40b9b46adb44a249e8e"`
Dec 17 22:13:37.112 INFO running `"docker" "rm" "-f" "69b1d07f3934de3ceebb583c2142d27a1157005d32b4a40b9b46adb44a249e8e"`
Dec 17 22:13:37.360 INFO [stdout] 69b1d07f3934de3ceebb583c2142d27a1157005d32b4a40b9b46adb44a249e8e