Dec 05 19:42:10.643 INFO testing jmacdonald/bright against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 19:42:10.643 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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"`
Dec 05 19:42:10.858 INFO [stdout] fdd461f5bff8e740a4058d53f416cb4067cecae3ec9cbf87544a747002a63eba
Dec 05 19:42:10.862 INFO running `"docker" "start" "-a" "fdd461f5bff8e740a4058d53f416cb4067cecae3ec9cbf87544a747002a63eba"`
Dec 05 19:42:11.270 INFO [stderr] usermod: no changes
Dec 05 19:42:11.297 INFO [stderr]    Compiling bright v0.1.0 (/source)
Dec 05 19:42:11.530 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 19:42:11.530 INFO [stderr]   --> src/main.rs:17:5
Dec 05 19:42:11.530 INFO [stderr]    |
Dec 05 19:42:11.530 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Dec 05 19:42:11.530 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Dec 05 19:42:11.530 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Dec 05 19:42:11.530 INFO [stderr]    | |_________________________________________________^
Dec 05 19:42:11.530 INFO [stderr]    |
Dec 05 19:42:11.530 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 19:42:11.530 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 19:42:11.530 INFO [stderr] 
Dec 05 19:42:11.530 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 19:42:11.530 INFO [stderr]   --> src/main.rs:28:5
Dec 05 19:42:11.530 INFO [stderr]    |
Dec 05 19:42:11.530 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Dec 05 19:42:11.530 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Dec 05 19:42:11.530 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Dec 05 19:42:11.530 INFO [stderr]    | |_____________________________________________^
Dec 05 19:42:11.530 INFO [stderr]    |
Dec 05 19:42:11.530 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 19:42:11.530 INFO [stderr] 
Dec 05 19:42:11.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 05 19:42:11.905 INFO [stderr] su: No module specific data is present
Dec 05 19:42:12.545 INFO running `"docker" "inspect" "fdd461f5bff8e740a4058d53f416cb4067cecae3ec9cbf87544a747002a63eba"`
Dec 05 19:42:12.786 INFO running `"docker" "rm" "-f" "fdd461f5bff8e740a4058d53f416cb4067cecae3ec9cbf87544a747002a63eba"`
Dec 05 19:42:13.002 INFO [stdout] fdd461f5bff8e740a4058d53f416cb4067cecae3ec9cbf87544a747002a63eba
Dec 05 19:42:13.008 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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"`
Dec 05 19:42:13.484 INFO [stdout] 31a55ea84157a328276905536f053764231ea25222a4eed16c6d4ff7380cd701
Dec 05 19:42:13.491 INFO running `"docker" "start" "-a" "31a55ea84157a328276905536f053764231ea25222a4eed16c6d4ff7380cd701"`
Dec 05 19:42:14.427 INFO [stderr] usermod: no changes
Dec 05 19:42:14.477 INFO [stderr]    Compiling bright v0.1.0 (/source)
Dec 05 19:42:14.876 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 19:42:14.876 INFO [stderr]   --> src/main.rs:17:5
Dec 05 19:42:14.876 INFO [stderr]    |
Dec 05 19:42:14.876 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Dec 05 19:42:14.876 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Dec 05 19:42:14.876 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Dec 05 19:42:14.876 INFO [stderr]    | |_________________________________________________^
Dec 05 19:42:14.876 INFO [stderr]    |
Dec 05 19:42:14.876 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 19:42:14.876 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 19:42:14.876 INFO [stderr] 
Dec 05 19:42:14.876 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 19:42:14.876 INFO [stderr]   --> src/main.rs:28:5
Dec 05 19:42:14.876 INFO [stderr]    |
Dec 05 19:42:14.876 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Dec 05 19:42:14.876 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Dec 05 19:42:14.876 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Dec 05 19:42:14.876 INFO [stderr]    | |_____________________________________________^
Dec 05 19:42:14.876 INFO [stderr]    |
Dec 05 19:42:14.876 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 19:42:14.876 INFO [stderr] 
Dec 05 19:42:15.118 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
Dec 05 19:42:15.120 INFO [stderr] su: No module specific data is present
Dec 05 19:42:15.598 INFO running `"docker" "inspect" "31a55ea84157a328276905536f053764231ea25222a4eed16c6d4ff7380cd701"`
Dec 05 19:42:15.800 INFO running `"docker" "rm" "-f" "31a55ea84157a328276905536f053764231ea25222a4eed16c6d4ff7380cd701"`
Dec 05 19:42:15.955 INFO [stdout] 31a55ea84157a328276905536f053764231ea25222a4eed16c6d4ff7380cd701
Dec 05 19:42:15.957 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen" "-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"`
Dec 05 19:42:16.416 INFO [stdout] f00390daec37174e2a87369fe464ed9e70094fe510423c0bd098fc91ce7513e2
Dec 05 19:42:16.419 INFO running `"docker" "start" "-a" "f00390daec37174e2a87369fe464ed9e70094fe510423c0bd098fc91ce7513e2"`
Dec 05 19:42:16.765 INFO [stderr] usermod: no changes
Dec 05 19:42:16.795 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 19:42:16.795 INFO [stderr]      Running /target/debug/deps/bright-a5c2a1482c6affe9
Dec 05 19:42:16.796 INFO [stdout] 
Dec 05 19:42:16.796 INFO [stdout] running 0 tests
Dec 05 19:42:16.796 INFO [stdout] 
Dec 05 19:42:16.796 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 19:42:16.796 INFO [stdout] 
Dec 05 19:42:16.798 INFO [stderr] su: No module specific data is present
Dec 05 19:42:17.054 INFO running `"docker" "inspect" "f00390daec37174e2a87369fe464ed9e70094fe510423c0bd098fc91ce7513e2"`
Dec 05 19:42:17.136 INFO running `"docker" "rm" "-f" "f00390daec37174e2a87369fe464ed9e70094fe510423c0bd098fc91ce7513e2"`
Dec 05 19:42:17.245 INFO [stdout] f00390daec37174e2a87369fe464ed9e70094fe510423c0bd098fc91ce7513e2