Dec 04 14:45:34.508 INFO checking mahulst/rust-playground-w against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 14:45:34.508 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 14:45:35.011 INFO [stdout] c47deb06f4febe5d1a20ffff30f9e0df5bd141504b8f536fad9ad7682034bac7
Dec 04 14:45:35.013 INFO running `"docker" "start" "-a" "c47deb06f4febe5d1a20ffff30f9e0df5bd141504b8f536fad9ad7682034bac7"`
Dec 04 14:45:36.914 INFO [stderr] usermod: no changes
Dec 04 14:45:37.006 INFO [stderr]     Checking minigrep v0.1.0 (/source)
Dec 04 14:45:37.539 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 04 14:45:37.539 INFO [stderr]  --> src/lib.rs:3:5
Dec 04 14:45:37.539 INFO [stderr]   |
Dec 04 14:45:37.539 INFO [stderr] 3 | use std::io::prelude::*;
Dec 04 14:45:37.540 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 04 14:45:37.540 INFO [stderr]   |
Dec 04 14:45:37.540 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:45:37.540 INFO [stderr] 
Dec 04 14:45:37.879 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 04 14:45:37.879 INFO [stderr]  --> src/lib.rs:3:5
Dec 04 14:45:37.880 INFO [stderr]   |
Dec 04 14:45:37.880 INFO [stderr] 3 | use std::io::prelude::*;
Dec 04 14:45:37.880 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 04 14:45:37.880 INFO [stderr]   |
Dec 04 14:45:37.881 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:45:37.881 INFO [stderr] 
Dec 04 14:45:38.379 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Dec 04 14:45:38.382 INFO [stderr] su: No module specific data is present
Dec 04 14:45:39.737 INFO running `"docker" "inspect" "c47deb06f4febe5d1a20ffff30f9e0df5bd141504b8f536fad9ad7682034bac7"`
Dec 04 14:45:40.156 INFO running `"docker" "rm" "-f" "c47deb06f4febe5d1a20ffff30f9e0df5bd141504b8f536fad9ad7682034bac7"`
Dec 04 14:45:40.788 INFO [stdout] c47deb06f4febe5d1a20ffff30f9e0df5bd141504b8f536fad9ad7682034bac7