Dec 04 14:45:40.255 INFO checking mahulst/rust-playground-w against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 14:45:40.255 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 04 14:45:40.844 INFO [stdout] 463aa3c1e0de191a3a2a51e95330dde6bfca19a4be87fb616fae5b34b717a008
Dec 04 14:45:40.846 INFO running `"docker" "start" "-a" "463aa3c1e0de191a3a2a51e95330dde6bfca19a4be87fb616fae5b34b717a008"`
Dec 04 14:45:42.275 INFO [stderr] usermod: no changes
Dec 04 14:45:42.331 INFO [stderr]     Checking minigrep v0.1.0 (/source)
Dec 04 14:45:42.710 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 04 14:45:42.710 INFO [stderr]  --> src/lib.rs:3:5
Dec 04 14:45:42.710 INFO [stderr]   |
Dec 04 14:45:42.710 INFO [stderr] 3 | use std::io::prelude::*;
Dec 04 14:45:42.710 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 04 14:45:42.711 INFO [stderr]   |
Dec 04 14:45:42.711 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:45:42.711 INFO [stderr] 
Dec 04 14:45:42.835 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 04 14:45:42.835 INFO [stderr]  --> src/lib.rs:3:5
Dec 04 14:45:42.835 INFO [stderr]   |
Dec 04 14:45:42.835 INFO [stderr] 3 | use std::io::prelude::*;
Dec 04 14:45:42.835 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 04 14:45:42.835 INFO [stderr]   |
Dec 04 14:45:42.835 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 14:45:42.835 INFO [stderr] 
Dec 04 14:45:43.392 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Dec 04 14:45:43.397 INFO [stderr] su: No module specific data is present
Dec 04 14:45:44.343 INFO running `"docker" "inspect" "463aa3c1e0de191a3a2a51e95330dde6bfca19a4be87fb616fae5b34b717a008"`
Dec 04 14:45:44.627 INFO running `"docker" "rm" "-f" "463aa3c1e0de191a3a2a51e95330dde6bfca19a4be87fb616fae5b34b717a008"`
Dec 04 14:45:45.009 INFO [stdout] 463aa3c1e0de191a3a2a51e95330dde6bfca19a4be87fb616fae5b34b717a008