Dec 13 15:21:55.800 INFO testing jmacdonald/bright against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 15:21:55.800 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 15:21:56.021 INFO [stdout] 5d8181dde65b452d7660dd92947bbf86273ba4f729fc6230d9b3199121e0aa30
Dec 13 15:21:56.026 INFO running `"docker" "start" "-a" "5d8181dde65b452d7660dd92947bbf86273ba4f729fc6230d9b3199121e0aa30"`
Dec 13 15:21:56.695 INFO [stderr] usermod: no changes
Dec 13 15:21:56.767 INFO [stderr]    Compiling bright v0.1.0 (/source)
Dec 13 15:21:57.311 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 15:21:57.311 INFO [stderr]   --> src/main.rs:17:5
Dec 13 15:21:57.311 INFO [stderr]    |
Dec 13 15:21:57.311 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Dec 13 15:21:57.311 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Dec 13 15:21:57.311 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Dec 13 15:21:57.311 INFO [stderr]    | |_________________________________________________^
Dec 13 15:21:57.311 INFO [stderr]    |
Dec 13 15:21:57.311 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 15:21:57.311 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 15:21:57.311 INFO [stderr] 
Dec 13 15:21:57.311 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 15:21:57.311 INFO [stderr]   --> src/main.rs:28:5
Dec 13 15:21:57.311 INFO [stderr]    |
Dec 13 15:21:57.311 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Dec 13 15:21:57.311 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Dec 13 15:21:57.311 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Dec 13 15:21:57.311 INFO [stderr]    | |_____________________________________________^
Dec 13 15:21:57.311 INFO [stderr]    |
Dec 13 15:21:57.311 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 15:21:57.311 INFO [stderr] 
Dec 13 15:21:57.796 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Dec 13 15:21:57.798 INFO [stderr] su: No module specific data is present
Dec 13 15:21:58.377 INFO running `"docker" "inspect" "5d8181dde65b452d7660dd92947bbf86273ba4f729fc6230d9b3199121e0aa30"`
Dec 13 15:21:58.605 INFO running `"docker" "rm" "-f" "5d8181dde65b452d7660dd92947bbf86273ba4f729fc6230d9b3199121e0aa30"`
Dec 13 15:21:58.991 INFO [stdout] 5d8181dde65b452d7660dd92947bbf86273ba4f729fc6230d9b3199121e0aa30
Dec 13 15:21:58.994 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 15:21:59.315 INFO [stdout] 5c907d634a131dc6e834fdcaf3c3471ca2fa4321614c4504b386665ea1cc48c0
Dec 13 15:21:59.317 INFO running `"docker" "start" "-a" "5c907d634a131dc6e834fdcaf3c3471ca2fa4321614c4504b386665ea1cc48c0"`
Dec 13 15:21:59.799 INFO [stderr] usermod: no changes
Dec 13 15:21:59.839 INFO [stderr]    Compiling bright v0.1.0 (/source)
Dec 13 15:22:00.208 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 15:22:00.208 INFO [stderr]   --> src/main.rs:17:5
Dec 13 15:22:00.208 INFO [stderr]    |
Dec 13 15:22:00.208 INFO [stderr] 17 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/actual_brightness"))
Dec 13 15:22:00.208 INFO [stderr] 18 | |         .expect("Couldn't read current brightness.")
Dec 13 15:22:00.208 INFO [stderr] 19 | |         .read_to_string(&mut current_brightness);
Dec 13 15:22:00.208 INFO [stderr]    | |_________________________________________________^
Dec 13 15:22:00.208 INFO [stderr]    |
Dec 13 15:22:00.208 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 15:22:00.208 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 15:22:00.208 INFO [stderr] 
Dec 13 15:22:00.209 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 15:22:00.209 INFO [stderr]   --> src/main.rs:28:5
Dec 13 15:22:00.209 INFO [stderr]    |
Dec 13 15:22:00.209 INFO [stderr] 28 | /     File::open(Path::new("/sys/class/backlight/intel_backlight/max_brightness"))
Dec 13 15:22:00.209 INFO [stderr] 29 | |         .expect("Couldn't read max brightness.")
Dec 13 15:22:00.209 INFO [stderr] 30 | |         .read_to_string(&mut max_brightness);
Dec 13 15:22:00.209 INFO [stderr]    | |_____________________________________________^
Dec 13 15:22:00.209 INFO [stderr]    |
Dec 13 15:22:00.209 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 15:22:00.209 INFO [stderr] 
Dec 13 15:22:00.470 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Dec 13 15:22:00.472 INFO [stderr] su: No module specific data is present
Dec 13 15:22:00.788 INFO running `"docker" "inspect" "5c907d634a131dc6e834fdcaf3c3471ca2fa4321614c4504b386665ea1cc48c0"`
Dec 13 15:22:00.939 INFO running `"docker" "rm" "-f" "5c907d634a131dc6e834fdcaf3c3471ca2fa4321614c4504b386665ea1cc48c0"`
Dec 13 15:22:01.107 INFO [stdout] 5c907d634a131dc6e834fdcaf3c3471ca2fa4321614c4504b386665ea1cc48c0
Dec 13 15:22:01.113 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 15:22:01.341 INFO [stdout] e51d2e729a007bbcc909e962a5ea9afe92abfc7bbb1e0aad2520f4f7035252b3
Dec 13 15:22:01.344 INFO running `"docker" "start" "-a" "e51d2e729a007bbcc909e962a5ea9afe92abfc7bbb1e0aad2520f4f7035252b3"`
Dec 13 15:22:01.869 INFO [stderr] usermod: no changes
Dec 13 15:22:01.902 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 13 15:22:01.902 INFO [stderr]      Running /target/debug/deps/bright-9c0c2b8c776d05b7
Dec 13 15:22:01.904 INFO [stdout] 
Dec 13 15:22:01.905 INFO [stdout] running 0 tests
Dec 13 15:22:01.906 INFO [stdout] 
Dec 13 15:22:01.906 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 15:22:01.906 INFO [stdout] 
Dec 13 15:22:01.906 INFO [stderr] su: No module specific data is present
Dec 13 15:22:02.293 INFO running `"docker" "inspect" "e51d2e729a007bbcc909e962a5ea9afe92abfc7bbb1e0aad2520f4f7035252b3"`
Dec 13 15:22:02.473 INFO running `"docker" "rm" "-f" "e51d2e729a007bbcc909e962a5ea9afe92abfc7bbb1e0aad2520f4f7035252b3"`
Dec 13 15:22:02.712 INFO [stdout] e51d2e729a007bbcc909e962a5ea9afe92abfc7bbb1e0aad2520f4f7035252b3