Dec 05 11:30:32.877 INFO checking jpng-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 11:30:32.877 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-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 11:30:33.358 INFO [stdout] 14d90a222924dddcc2bc1effc79d9285975dc7d6d2565907bf302098ef3d5a9f
Dec 05 11:30:33.360 INFO running `"docker" "start" "-a" "14d90a222924dddcc2bc1effc79d9285975dc7d6d2565907bf302098ef3d5a9f"`
Dec 05 11:30:35.110 INFO [stderr] usermod: no changes
Dec 05 11:30:35.312 INFO [stderr]    Compiling num-derive v0.2.3
Dec 05 11:30:41.499 INFO [stderr]     Checking image v0.19.0
Dec 05 11:30:47.696 INFO [stderr]     Checking jpng v0.1.0 (/source)
Dec 05 11:30:51.715 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 11:30:51.715 INFO [stderr]   --> src/lib.rs:68:9
Dec 05 11:30:51.715 INFO [stderr]    |
Dec 05 11:30:51.715 INFO [stderr] 68 | /         self.image
Dec 05 11:30:51.715 INFO [stderr] 69 | |             .to_rgba()
Dec 05 11:30:51.715 INFO [stderr] 70 | |             .enumerate_pixels()
Dec 05 11:30:51.715 INFO [stderr] 71 | |             .zip(luma.pixels())
Dec 05 11:30:51.715 INFO [stderr] ...  |
Dec 05 11:30:51.715 INFO [stderr] 76 | |                     });
Dec 05 11:30:51.715 INFO [stderr] 77 | |             }).collect::<()>();
Dec 05 11:30:51.715 INFO [stderr]    | |_______________________________^
Dec 05 11:30:51.715 INFO [stderr]    |
Dec 05 11:30:51.715 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 11:30:51.715 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 11:30:51.715 INFO [stderr] 
Dec 05 11:30:52.646 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 05 11:30:52.646 INFO [stderr]   --> src/lib.rs:68:9
Dec 05 11:30:52.646 INFO [stderr]    |
Dec 05 11:30:52.646 INFO [stderr] 68 | /         self.image
Dec 05 11:30:52.646 INFO [stderr] 69 | |             .to_rgba()
Dec 05 11:30:52.646 INFO [stderr] 70 | |             .enumerate_pixels()
Dec 05 11:30:52.646 INFO [stderr] 71 | |             .zip(luma.pixels())
Dec 05 11:30:52.646 INFO [stderr] ...  |
Dec 05 11:30:52.646 INFO [stderr] 76 | |                     });
Dec 05 11:30:52.646 INFO [stderr] 77 | |             }).collect::<()>();
Dec 05 11:30:52.646 INFO [stderr]    | |_______________________________^
Dec 05 11:30:52.646 INFO [stderr]    |
Dec 05 11:30:52.646 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 11:30:52.646 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 05 11:30:52.646 INFO [stderr] 
Dec 05 11:30:52.720 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.57s
Dec 05 11:30:52.728 INFO [stderr] su: No module specific data is present
Dec 05 11:30:53.968 INFO running `"docker" "inspect" "14d90a222924dddcc2bc1effc79d9285975dc7d6d2565907bf302098ef3d5a9f"`
Dec 05 11:30:54.379 INFO running `"docker" "rm" "-f" "14d90a222924dddcc2bc1effc79d9285975dc7d6d2565907bf302098ef3d5a9f"`
Dec 05 11:30:54.703 INFO [stdout] 14d90a222924dddcc2bc1effc79d9285975dc7d6d2565907bf302098ef3d5a9f