Dec 05 09:54:14.255 INFO testing robbystk/rust-by-the-book against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 09:54:14.255 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 09:54:14.515 INFO [stdout] 845feb27e5dbc4acca79ef6b2bf360e6710004b5aca9c49165cebeaff41ab028
Dec 05 09:54:14.517 INFO running `"docker" "start" "-a" "845feb27e5dbc4acca79ef6b2bf360e6710004b5aca9c49165cebeaff41ab028"`
Dec 05 09:54:15.073 INFO [stderr] usermod: no changes
Dec 05 09:54:15.105 INFO [stderr]    Compiling errors v0.1.0 (/source)
Dec 05 09:54:15.263 INFO [stderr] warning: unused variable: `f`
Dec 05 09:54:15.263 INFO [stderr]  --> src/main.rs:4:9
Dec 05 09:54:15.263 INFO [stderr]   |
Dec 05 09:54:15.263 INFO [stderr] 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Dec 05 09:54:15.263 INFO [stderr]   |         ^ help: consider using `_f` instead
Dec 05 09:54:15.263 INFO [stderr]   |
Dec 05 09:54:15.263 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 09:54:15.263 INFO [stderr] 
Dec 05 09:54:15.494 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 05 09:54:15.494 INFO [stderr] su: No module specific data is present
Dec 05 09:54:15.781 INFO running `"docker" "inspect" "845feb27e5dbc4acca79ef6b2bf360e6710004b5aca9c49165cebeaff41ab028"`
Dec 05 09:54:15.882 INFO running `"docker" "rm" "-f" "845feb27e5dbc4acca79ef6b2bf360e6710004b5aca9c49165cebeaff41ab028"`
Dec 05 09:54:15.980 INFO [stdout] 845feb27e5dbc4acca79ef6b2bf360e6710004b5aca9c49165cebeaff41ab028
Dec 05 09:54:15.982 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 09:54:16.145 INFO [stdout] 4bb7cf5cbe4054f75a37aa23e9ce9940d98c2b248b7d04f700bf95b762f87ad9
Dec 05 09:54:16.146 INFO running `"docker" "start" "-a" "4bb7cf5cbe4054f75a37aa23e9ce9940d98c2b248b7d04f700bf95b762f87ad9"`
Dec 05 09:54:16.602 INFO [stderr] usermod: no changes
Dec 05 09:54:16.640 INFO [stderr]    Compiling errors v0.1.0 (/source)
Dec 05 09:54:16.944 INFO [stderr] warning: unused variable: `f`
Dec 05 09:54:16.944 INFO [stderr]  --> src/main.rs:4:9
Dec 05 09:54:16.944 INFO [stderr]   |
Dec 05 09:54:16.944 INFO [stderr] 4 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
Dec 05 09:54:16.944 INFO [stderr]   |         ^ help: consider using `_f` instead
Dec 05 09:54:16.944 INFO [stderr]   |
Dec 05 09:54:16.944 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 09:54:16.944 INFO [stderr] 
Dec 05 09:54:17.269 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 05 09:54:17.271 INFO [stderr] su: No module specific data is present
Dec 05 09:54:17.856 INFO running `"docker" "inspect" "4bb7cf5cbe4054f75a37aa23e9ce9940d98c2b248b7d04f700bf95b762f87ad9"`
Dec 05 09:54:18.136 INFO running `"docker" "rm" "-f" "4bb7cf5cbe4054f75a37aa23e9ce9940d98c2b248b7d04f700bf95b762f87ad9"`
Dec 05 09:54:18.336 INFO [stdout] 4bb7cf5cbe4054f75a37aa23e9ce9940d98c2b248b7d04f700bf95b762f87ad9
Dec 05 09:54:18.338 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 09:54:18.728 INFO [stdout] 4d57802658037e434ca91c11c5f970f71b4896751da891438ed370fcbdda22e4
Dec 05 09:54:18.730 INFO running `"docker" "start" "-a" "4d57802658037e434ca91c11c5f970f71b4896751da891438ed370fcbdda22e4"`
Dec 05 09:54:20.017 INFO [stderr] usermod: no changes
Dec 05 09:54:20.060 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 09:54:20.069 INFO [stderr]      Running /target/debug/deps/errors-903ce3000db5b3b1
Dec 05 09:54:20.074 INFO [stdout] 
Dec 05 09:54:20.074 INFO [stdout] running 0 tests
Dec 05 09:54:20.074 INFO [stdout] 
Dec 05 09:54:20.074 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 09:54:20.074 INFO [stdout] 
Dec 05 09:54:20.079 INFO [stderr] su: No module specific data is present
Dec 05 09:54:20.582 INFO running `"docker" "inspect" "4d57802658037e434ca91c11c5f970f71b4896751da891438ed370fcbdda22e4"`
Dec 05 09:54:20.919 INFO running `"docker" "rm" "-f" "4d57802658037e434ca91c11c5f970f71b4896751da891438ed370fcbdda22e4"`
Dec 05 09:54:21.176 INFO [stdout] 4d57802658037e434ca91c11c5f970f71b4896751da891438ed370fcbdda22e4