Dec 01 04:42:58.484 INFO testing robbystk/rust-by-the-book against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 01 04:42:58.484 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 04:42:58.815 INFO [stdout] d7ba459eaf7dbfac35273de9c0e73e1cf86ebc67208ae6b751c63b12f0379fb8
Dec 01 04:42:58.817 INFO running `"docker" "start" "-a" "d7ba459eaf7dbfac35273de9c0e73e1cf86ebc67208ae6b751c63b12f0379fb8"`
Dec 01 04:42:59.615 INFO [stderr] usermod: no changes
Dec 01 04:42:59.663 INFO [stderr]    Compiling errors v0.1.0 (/source)
Dec 01 04:42:59.941 INFO [stderr] warning: unused variable: `f`
Dec 01 04:42:59.941 INFO [stderr]  --> src/main.rs:4:9
Dec 01 04:42:59.941 INFO [stderr]   |
Dec 01 04:42:59.941 INFO [stderr] 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Dec 01 04:42:59.941 INFO [stderr]   |         ^ help: consider using `_f` instead
Dec 01 04:42:59.941 INFO [stderr]   |
Dec 01 04:42:59.941 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 01 04:42:59.941 INFO [stderr] 
Dec 01 04:43:00.351 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
Dec 01 04:43:00.354 INFO [stderr] su: No module specific data is present
Dec 01 04:43:01.130 INFO running `"docker" "inspect" "d7ba459eaf7dbfac35273de9c0e73e1cf86ebc67208ae6b751c63b12f0379fb8"`
Dec 01 04:43:01.487 INFO running `"docker" "rm" "-f" "d7ba459eaf7dbfac35273de9c0e73e1cf86ebc67208ae6b751c63b12f0379fb8"`
Dec 01 04:43:01.803 INFO [stdout] d7ba459eaf7dbfac35273de9c0e73e1cf86ebc67208ae6b751c63b12f0379fb8
Dec 01 04:43:01.810 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 04:43:02.343 INFO [stdout] e46fe267be13a237165ed9e384c85da8965f4c6fd27d22ec46f6bd5b2b3d80c3
Dec 01 04:43:02.348 INFO running `"docker" "start" "-a" "e46fe267be13a237165ed9e384c85da8965f4c6fd27d22ec46f6bd5b2b3d80c3"`
Dec 01 04:43:03.547 INFO [stderr] usermod: no changes
Dec 01 04:43:03.595 INFO [stderr]    Compiling errors v0.1.0 (/source)
Dec 01 04:43:03.867 INFO [stderr] warning: unused variable: `f`
Dec 01 04:43:03.867 INFO [stderr]  --> src/main.rs:4:9
Dec 01 04:43:03.867 INFO [stderr]   |
Dec 01 04:43:03.867 INFO [stderr] 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Dec 01 04:43:03.867 INFO [stderr]   |         ^ help: consider using `_f` instead
Dec 01 04:43:03.867 INFO [stderr]   |
Dec 01 04:43:03.867 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 01 04:43:03.867 INFO [stderr] 
Dec 01 04:43:04.308 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 01 04:43:04.310 INFO [stderr] su: No module specific data is present
Dec 01 04:43:04.645 INFO running `"docker" "inspect" "e46fe267be13a237165ed9e384c85da8965f4c6fd27d22ec46f6bd5b2b3d80c3"`
Dec 01 04:43:04.812 INFO running `"docker" "rm" "-f" "e46fe267be13a237165ed9e384c85da8965f4c6fd27d22ec46f6bd5b2b3d80c3"`
Dec 01 04:43:04.925 INFO [stdout] e46fe267be13a237165ed9e384c85da8965f4c6fd27d22ec46f6bd5b2b3d80c3
Dec 01 04:43:04.932 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 04:43:05.255 INFO [stdout] ada94baae3794868865022106441559ad1ab05787fc8f2e311e0b1610c34c988
Dec 01 04:43:05.261 INFO running `"docker" "start" "-a" "ada94baae3794868865022106441559ad1ab05787fc8f2e311e0b1610c34c988"`
Dec 01 04:43:05.791 INFO [stderr] usermod: no changes
Dec 01 04:43:05.830 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 01 04:43:05.840 INFO [stderr]      Running /target/debug/deps/errors-d903e606a036ce5a
Dec 01 04:43:05.855 INFO [stdout] 
Dec 01 04:43:05.855 INFO [stdout] running 0 tests
Dec 01 04:43:05.855 INFO [stdout] 
Dec 01 04:43:05.855 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 04:43:05.855 INFO [stdout] 
Dec 01 04:43:05.863 INFO [stderr] su: No module specific data is present
Dec 01 04:43:06.188 INFO running `"docker" "inspect" "ada94baae3794868865022106441559ad1ab05787fc8f2e311e0b1610c34c988"`
Dec 01 04:43:06.329 INFO running `"docker" "rm" "-f" "ada94baae3794868865022106441559ad1ab05787fc8f2e311e0b1610c34c988"`
Dec 01 04:43:06.413 INFO [stdout] ada94baae3794868865022106441559ad1ab05787fc8f2e311e0b1610c34c988
