Dec 01 00:50:57.910 INFO testing suelz/chapter_4 against 1.30.1 for beta-1.31-5
Dec 01 00:50:57.910 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 00:50:58.355 INFO [stdout] 25dac01f8fcde0af94ac518d18ba1f6a984608df94ff902be905129f97fdf6ba
Dec 01 00:50:58.361 INFO running `"docker" "start" "-a" "25dac01f8fcde0af94ac518d18ba1f6a984608df94ff902be905129f97fdf6ba"`
Dec 01 00:50:59.582 INFO [stderr] usermod: no changes
Dec 01 00:50:59.636 INFO [stderr]    Compiling ch4 v0.1.0 (/source)
Dec 01 00:50:59.868 INFO [stderr] warning: unused variable: `word`
Dec 01 00:50:59.869 INFO [stderr]   --> src/main.rs:28:9
Dec 01 00:50:59.869 INFO [stderr]    |
Dec 01 00:50:59.870 INFO [stderr] 28 |     let word = first_word(&x);
Dec 01 00:50:59.870 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Dec 01 00:50:59.870 INFO [stderr]    |
Dec 01 00:50:59.870 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 00:50:59.871 INFO [stderr] 
Dec 01 00:50:59.879 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:50:59.879 INFO [stderr]   --> src/main.rs:26:9
Dec 01 00:50:59.879 INFO [stderr]    |
Dec 01 00:50:59.879 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Dec 01 00:50:59.879 INFO [stderr]    |         ----^
Dec 01 00:50:59.879 INFO [stderr]    |         |
Dec 01 00:50:59.879 INFO [stderr]    |         help: remove this `mut`
Dec 01 00:50:59.879 INFO [stderr]    |
Dec 01 00:50:59.879 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 00:50:59.879 INFO [stderr] 
Dec 01 00:51:00.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 01 00:51:00.384 INFO [stderr] su: No module specific data is present
Dec 01 00:51:01.075 INFO running `"docker" "inspect" "25dac01f8fcde0af94ac518d18ba1f6a984608df94ff902be905129f97fdf6ba"`
Dec 01 00:51:01.377 INFO running `"docker" "rm" "-f" "25dac01f8fcde0af94ac518d18ba1f6a984608df94ff902be905129f97fdf6ba"`
Dec 01 00:51:01.786 INFO [stdout] 25dac01f8fcde0af94ac518d18ba1f6a984608df94ff902be905129f97fdf6ba
Dec 01 00:51:01.790 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 00:51:02.221 INFO [stdout] 623b00a8a9ba44cd0e3483135603e4c4989d32cf834018a004972401d2f6db80
Dec 01 00:51:02.229 INFO running `"docker" "start" "-a" "623b00a8a9ba44cd0e3483135603e4c4989d32cf834018a004972401d2f6db80"`
Dec 01 00:51:03.263 INFO [stderr] usermod: no changes
Dec 01 00:51:03.306 INFO [stderr]    Compiling ch4 v0.1.0 (/source)
Dec 01 00:51:03.559 INFO [stderr] warning: unused variable: `word`
Dec 01 00:51:03.559 INFO [stderr]   --> src/main.rs:28:9
Dec 01 00:51:03.559 INFO [stderr]    |
Dec 01 00:51:03.559 INFO [stderr] 28 |     let word = first_word(&x);
Dec 01 00:51:03.559 INFO [stderr]    |         ^^^^ help: consider using `_word` instead
Dec 01 00:51:03.559 INFO [stderr]    |
Dec 01 00:51:03.559 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 00:51:03.559 INFO [stderr] 
Dec 01 00:51:03.567 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:51:03.567 INFO [stderr]   --> src/main.rs:26:9
Dec 01 00:51:03.567 INFO [stderr]    |
Dec 01 00:51:03.567 INFO [stderr] 26 |     let mut x = String::from("Conor Kennedy");
Dec 01 00:51:03.567 INFO [stderr]    |         ----^
Dec 01 00:51:03.567 INFO [stderr]    |         |
Dec 01 00:51:03.567 INFO [stderr]    |         help: remove this `mut`
Dec 01 00:51:03.567 INFO [stderr]    |
Dec 01 00:51:03.567 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 00:51:03.567 INFO [stderr] 
Dec 01 00:51:04.064 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Dec 01 00:51:04.071 INFO [stderr] su: No module specific data is present
Dec 01 00:51:04.553 INFO running `"docker" "inspect" "623b00a8a9ba44cd0e3483135603e4c4989d32cf834018a004972401d2f6db80"`
Dec 01 00:51:04.989 INFO running `"docker" "rm" "-f" "623b00a8a9ba44cd0e3483135603e4c4989d32cf834018a004972401d2f6db80"`
Dec 01 00:51:05.447 INFO [stdout] 623b00a8a9ba44cd0e3483135603e4c4989d32cf834018a004972401d2f6db80
Dec 01 00:51:05.451 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 00:51:05.941 INFO [stdout] e40c8b431bd42c72b657a434a6ebcbededa2c0446bd1875f742cd7859f4a2341
Dec 01 00:51:05.942 INFO running `"docker" "start" "-a" "e40c8b431bd42c72b657a434a6ebcbededa2c0446bd1875f742cd7859f4a2341"`
Dec 01 00:51:06.979 INFO [stderr] usermod: no changes
Dec 01 00:51:07.051 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 01 00:51:07.058 INFO [stderr]      Running /target/debug/deps/ch4-8106123ba75b6a55
Dec 01 00:51:07.067 INFO [stdout] 
Dec 01 00:51:07.067 INFO [stdout] running 0 tests
Dec 01 00:51:07.067 INFO [stdout] 
Dec 01 00:51:07.067 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 00:51:07.067 INFO [stdout] 
Dec 01 00:51:07.069 INFO [stderr] su: No module specific data is present
Dec 01 00:51:07.583 INFO running `"docker" "inspect" "e40c8b431bd42c72b657a434a6ebcbededa2c0446bd1875f742cd7859f4a2341"`
Dec 01 00:51:07.797 INFO running `"docker" "rm" "-f" "e40c8b431bd42c72b657a434a6ebcbededa2c0446bd1875f742cd7859f4a2341"`
Dec 01 00:51:08.061 INFO [stdout] e40c8b431bd42c72b657a434a6ebcbededa2c0446bd1875f742cd7859f4a2341
