Dec 06 06:27:14.654 INFO testing aschampion/test_image_jpeg against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 06:27:14.654 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 06:27:14.938 INFO [stdout] 6e0d16fca033295bfde87a0cc4d7d0ba1b3c1b34772687d14468a3a3c82e434f
Dec 06 06:27:14.946 INFO running `"docker" "start" "-a" "6e0d16fca033295bfde87a0cc4d7d0ba1b3c1b34772687d14468a3a3c82e434f"`
Dec 06 06:27:15.870 INFO [stderr] usermod: no changes
Dec 06 06:27:16.052 INFO [stderr]    Compiling test_image_jpeg v0.1.0 (/source)
Dec 06 06:27:18.268 INFO [stderr] warning: variable does not need to be mutable
Dec 06 06:27:18.268 INFO [stderr]   --> src/main.rs:24:13
Dec 06 06:27:18.268 INFO [stderr]    |
Dec 06 06:27:18.268 INFO [stderr] 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Dec 06 06:27:18.268 INFO [stderr]    |             ----^^^^^^^
Dec 06 06:27:18.268 INFO [stderr]    |             |
Dec 06 06:27:18.268 INFO [stderr]    |             help: remove this `mut`
Dec 06 06:27:18.268 INFO [stderr]    |
Dec 06 06:27:18.268 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 06:27:18.268 INFO [stderr] 
Dec 06 06:27:20.528 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
Dec 06 06:27:20.532 INFO [stderr] su: No module specific data is present
Dec 06 06:27:21.501 INFO running `"docker" "inspect" "6e0d16fca033295bfde87a0cc4d7d0ba1b3c1b34772687d14468a3a3c82e434f"`
Dec 06 06:27:21.880 INFO running `"docker" "rm" "-f" "6e0d16fca033295bfde87a0cc4d7d0ba1b3c1b34772687d14468a3a3c82e434f"`
Dec 06 06:27:22.220 INFO [stdout] 6e0d16fca033295bfde87a0cc4d7d0ba1b3c1b34772687d14468a3a3c82e434f
Dec 06 06:27:22.224 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 06:27:22.690 INFO [stdout] 4feb59ba9c18adc55f0397ea2b26b7121e8cd8d6be53dad08d7d7cff354d89df
Dec 06 06:27:22.692 INFO running `"docker" "start" "-a" "4feb59ba9c18adc55f0397ea2b26b7121e8cd8d6be53dad08d7d7cff354d89df"`
Dec 06 06:27:25.516 INFO [stderr] usermod: no changes
Dec 06 06:27:25.651 INFO [stderr]    Compiling test_image_jpeg v0.1.0 (/source)
Dec 06 06:27:27.996 INFO [stderr] warning: variable does not need to be mutable
Dec 06 06:27:27.996 INFO [stderr]   --> src/main.rs:24:13
Dec 06 06:27:27.996 INFO [stderr]    |
Dec 06 06:27:27.996 INFO [stderr] 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Dec 06 06:27:27.996 INFO [stderr]    |             ----^^^^^^^
Dec 06 06:27:27.996 INFO [stderr]    |             |
Dec 06 06:27:27.996 INFO [stderr]    |             help: remove this `mut`
Dec 06 06:27:27.996 INFO [stderr]    |
Dec 06 06:27:27.996 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 06:27:27.997 INFO [stderr] 
Dec 06 06:27:28.418 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
Dec 06 06:27:28.423 INFO [stderr] su: No module specific data is present
Dec 06 06:27:30.121 INFO running `"docker" "inspect" "4feb59ba9c18adc55f0397ea2b26b7121e8cd8d6be53dad08d7d7cff354d89df"`
Dec 06 06:27:30.408 INFO running `"docker" "rm" "-f" "4feb59ba9c18adc55f0397ea2b26b7121e8cd8d6be53dad08d7d7cff354d89df"`
Dec 06 06:27:30.788 INFO [stdout] 4feb59ba9c18adc55f0397ea2b26b7121e8cd8d6be53dad08d7d7cff354d89df
Dec 06 06:27:30.790 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 06:27:31.299 INFO [stdout] 79a022658e8588a654c71e45a59c12ac74adf20f7ecd389cc1b849377f46c57e
Dec 06 06:27:31.301 INFO running `"docker" "start" "-a" "79a022658e8588a654c71e45a59c12ac74adf20f7ecd389cc1b849377f46c57e"`
Dec 06 06:27:33.592 INFO [stderr] usermod: no changes
Dec 06 06:27:33.774 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
Dec 06 06:27:33.780 INFO [stderr]      Running /target/debug/deps/test_image_jpeg-dc85ac7f6dc45951
Dec 06 06:27:33.781 INFO [stdout] 
Dec 06 06:27:33.781 INFO [stdout] running 0 tests
Dec 06 06:27:33.781 INFO [stdout] 
Dec 06 06:27:33.781 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 06:27:33.781 INFO [stdout] 
Dec 06 06:27:33.789 INFO [stderr] su: No module specific data is present
Dec 06 06:27:35.351 INFO running `"docker" "inspect" "79a022658e8588a654c71e45a59c12ac74adf20f7ecd389cc1b849377f46c57e"`
Dec 06 06:27:35.598 INFO running `"docker" "rm" "-f" "79a022658e8588a654c71e45a59c12ac74adf20f7ecd389cc1b849377f46c57e"`
Dec 06 06:27:35.944 INFO [stdout] 79a022658e8588a654c71e45a59c12ac74adf20f7ecd389cc1b849377f46c57e