Dec 14 02:24:03.819 INFO testing aschampion/test_image_jpeg against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 02:24:03.819 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 02:24:04.263 INFO [stdout] c5c7a480a79befc275e95b0f15bb47ea866a8717647f3a30f4774f94865b353d
Dec 14 02:24:04.263 INFO running `"docker" "start" "-a" "c5c7a480a79befc275e95b0f15bb47ea866a8717647f3a30f4774f94865b353d"`
Dec 14 02:24:05.527 INFO [stderr] usermod: no changes
Dec 14 02:24:05.659 INFO [stderr]    Compiling test_image_jpeg v0.1.0 (/source)
Dec 14 02:24:07.999 INFO [stderr] warning: variable does not need to be mutable
Dec 14 02:24:07.999 INFO [stderr]   --> src/main.rs:24:13
Dec 14 02:24:07.999 INFO [stderr]    |
Dec 14 02:24:07.999 INFO [stderr] 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Dec 14 02:24:07.999 INFO [stderr]    |             ----^^^^^^^
Dec 14 02:24:07.999 INFO [stderr]    |             |
Dec 14 02:24:07.999 INFO [stderr]    |             help: remove this `mut`
Dec 14 02:24:07.999 INFO [stderr]    |
Dec 14 02:24:07.999 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 02:24:07.999 INFO [stderr] 
Dec 14 02:24:10.286 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.74s
Dec 14 02:24:10.291 INFO [stderr] su: No module specific data is present
Dec 14 02:24:11.187 INFO running `"docker" "inspect" "c5c7a480a79befc275e95b0f15bb47ea866a8717647f3a30f4774f94865b353d"`
Dec 14 02:24:11.433 INFO running `"docker" "rm" "-f" "c5c7a480a79befc275e95b0f15bb47ea866a8717647f3a30f4774f94865b353d"`
Dec 14 02:24:11.767 INFO [stdout] c5c7a480a79befc275e95b0f15bb47ea866a8717647f3a30f4774f94865b353d
Dec 14 02:24:11.775 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 02:24:12.477 INFO [stdout] 83cb7d768a4042add91cabdbc7d43e85c5e87bf6a937942e66c3838bd0db20ed
Dec 14 02:24:12.479 INFO running `"docker" "start" "-a" "83cb7d768a4042add91cabdbc7d43e85c5e87bf6a937942e66c3838bd0db20ed"`
Dec 14 02:24:14.725 INFO [stderr] usermod: no changes
Dec 14 02:24:14.947 INFO [stderr]    Compiling test_image_jpeg v0.1.0 (/source)
Dec 14 02:24:16.736 INFO [stderr] warning: variable does not need to be mutable
Dec 14 02:24:16.736 INFO [stderr]   --> src/main.rs:24:13
Dec 14 02:24:16.736 INFO [stderr]    |
Dec 14 02:24:16.736 INFO [stderr] 24 |         let mut encoder = image::png::PNGEncoder::new(&mut writer);
Dec 14 02:24:16.736 INFO [stderr]    |             ----^^^^^^^
Dec 14 02:24:16.736 INFO [stderr]    |             |
Dec 14 02:24:16.736 INFO [stderr]    |             help: remove this `mut`
Dec 14 02:24:16.736 INFO [stderr]    |
Dec 14 02:24:16.736 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 02:24:16.736 INFO [stderr] 
Dec 14 02:24:17.148 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
Dec 14 02:24:17.154 INFO [stderr] su: No module specific data is present
Dec 14 02:24:18.907 INFO running `"docker" "inspect" "83cb7d768a4042add91cabdbc7d43e85c5e87bf6a937942e66c3838bd0db20ed"`
Dec 14 02:24:19.265 INFO running `"docker" "rm" "-f" "83cb7d768a4042add91cabdbc7d43e85c5e87bf6a937942e66c3838bd0db20ed"`
Dec 14 02:24:19.644 INFO [stdout] 83cb7d768a4042add91cabdbc7d43e85c5e87bf6a937942e66c3838bd0db20ed
Dec 14 02:24:19.651 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 14 02:24:20.182 INFO [stdout] 39b4fad930a6d01b3a1d72481de927669b60d2a7d41688e5f9b83186a1bb49a7
Dec 14 02:24:20.184 INFO running `"docker" "start" "-a" "39b4fad930a6d01b3a1d72481de927669b60d2a7d41688e5f9b83186a1bb49a7"`
Dec 14 02:24:22.341 INFO [stderr] usermod: no changes
Dec 14 02:24:22.568 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
Dec 14 02:24:22.570 INFO [stderr]      Running /target/debug/deps/test_image_jpeg-356dba67fedd94fb
Dec 14 02:24:22.581 INFO [stdout] 
Dec 14 02:24:22.581 INFO [stdout] running 0 tests
Dec 14 02:24:22.581 INFO [stdout] 
Dec 14 02:24:22.581 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 02:24:22.581 INFO [stdout] 
Dec 14 02:24:22.583 INFO [stderr] su: No module specific data is present
Dec 14 02:24:24.245 INFO running `"docker" "inspect" "39b4fad930a6d01b3a1d72481de927669b60d2a7d41688e5f9b83186a1bb49a7"`
Dec 14 02:24:24.595 INFO running `"docker" "rm" "-f" "39b4fad930a6d01b3a1d72481de927669b60d2a7d41688e5f9b83186a1bb49a7"`
Dec 14 02:24:24.979 INFO [stdout] 39b4fad930a6d01b3a1d72481de927669b60d2a7d41688e5f9b83186a1bb49a7