Dec 01 04:43:06.496 INFO testing robbystk/rust-by-the-book against 1.30.1 for beta-1.31-5
Dec 01 04:43:06.496 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/1.30.1:/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 +1.30.1 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 04:43:06.945 INFO [stdout] 08c7cde8978b49df5073c369039e82aaff1c3cc464070a8a30090a00cdf9bc33
Dec 01 04:43:06.945 INFO running `"docker" "start" "-a" "08c7cde8978b49df5073c369039e82aaff1c3cc464070a8a30090a00cdf9bc33"`
Dec 01 04:43:08.134 INFO [stderr] usermod: no changes
Dec 01 04:43:08.207 INFO [stderr]    Compiling errors v0.1.0 (/source)
Dec 01 04:43:08.506 INFO [stderr] warning: unused variable: `f`
Dec 01 04:43:08.507 INFO [stderr]  --> src/main.rs:4:9
Dec 01 04:43:08.507 INFO [stderr]   |
Dec 01 04:43:08.507 INFO [stderr] 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Dec 01 04:43:08.507 INFO [stderr]   |         ^ help: consider using `_f` instead
Dec 01 04:43:08.508 INFO [stderr]   |
Dec 01 04:43:08.509 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 01 04:43:08.509 INFO [stderr] 
Dec 01 04:43:09.052 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Dec 01 04:43:09.054 INFO [stderr] su: No module specific data is present
Dec 01 04:43:09.955 INFO running `"docker" "inspect" "08c7cde8978b49df5073c369039e82aaff1c3cc464070a8a30090a00cdf9bc33"`
Dec 01 04:43:10.163 INFO running `"docker" "rm" "-f" "08c7cde8978b49df5073c369039e82aaff1c3cc464070a8a30090a00cdf9bc33"`
Dec 01 04:43:10.511 INFO [stdout] 08c7cde8978b49df5073c369039e82aaff1c3cc464070a8a30090a00cdf9bc33
Dec 01 04:43:10.522 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/1.30.1:/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 +1.30.1 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 04:43:10.971 INFO [stdout] 65cfeb096d7ef3466edac489f4a4d5facbc8f2ee2fe867976c5166f674f88c0d
Dec 01 04:43:10.973 INFO running `"docker" "start" "-a" "65cfeb096d7ef3466edac489f4a4d5facbc8f2ee2fe867976c5166f674f88c0d"`
Dec 01 04:43:12.350 INFO [stderr] usermod: no changes
Dec 01 04:43:12.431 INFO [stderr]    Compiling errors v0.1.0 (/source)
Dec 01 04:43:12.824 INFO [stderr] warning: unused variable: `f`
Dec 01 04:43:12.824 INFO [stderr]  --> src/main.rs:4:9
Dec 01 04:43:12.824 INFO [stderr]   |
Dec 01 04:43:12.824 INFO [stderr] 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Dec 01 04:43:12.824 INFO [stderr]   |         ^ help: consider using `_f` instead
Dec 01 04:43:12.824 INFO [stderr]   |
Dec 01 04:43:12.824 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 01 04:43:12.824 INFO [stderr] 
Dec 01 04:43:13.312 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Dec 01 04:43:13.319 INFO [stderr] su: No module specific data is present
Dec 01 04:43:14.824 INFO running `"docker" "inspect" "65cfeb096d7ef3466edac489f4a4d5facbc8f2ee2fe867976c5166f674f88c0d"`
Dec 01 04:43:15.107 INFO running `"docker" "rm" "-f" "65cfeb096d7ef3466edac489f4a4d5facbc8f2ee2fe867976c5166f674f88c0d"`
Dec 01 04:43:15.487 INFO [stdout] 65cfeb096d7ef3466edac489f4a4d5facbc8f2ee2fe867976c5166f674f88c0d
Dec 01 04:43:15.495 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/beta-1.31-5/1.30.1:/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 +1.30.1 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 04:43:15.929 INFO [stdout] 89d379eca9738dc6e57021f7339f8a9ec0cae0b9bbeb411251e4a3f20dbab706
Dec 01 04:43:15.931 INFO running `"docker" "start" "-a" "89d379eca9738dc6e57021f7339f8a9ec0cae0b9bbeb411251e4a3f20dbab706"`
Dec 01 04:43:17.555 INFO [stderr] usermod: no changes
Dec 01 04:43:17.631 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 01 04:43:17.647 INFO [stderr]      Running /target/debug/deps/errors-c89e3399695aff0b
Dec 01 04:43:17.647 INFO [stdout] 
Dec 01 04:43:17.647 INFO [stdout] running 0 tests
Dec 01 04:43:17.647 INFO [stdout] 
Dec 01 04:43:17.647 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 04:43:17.647 INFO [stdout] 
Dec 01 04:43:17.659 INFO [stderr] su: No module specific data is present
Dec 01 04:43:18.231 INFO running `"docker" "inspect" "89d379eca9738dc6e57021f7339f8a9ec0cae0b9bbeb411251e4a3f20dbab706"`
Dec 01 04:43:18.535 INFO running `"docker" "rm" "-f" "89d379eca9738dc6e57021f7339f8a9ec0cae0b9bbeb411251e4a3f20dbab706"`
Dec 01 04:43:18.834 INFO [stdout] 89d379eca9738dc6e57021f7339f8a9ec0cae0b9bbeb411251e4a3f20dbab706
