Dec 19 13:15:20.381 INFO checking mahulst/rust-playground-w against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 13:15:20.381 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mahulst/rust-playground-w:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:15:21.036 INFO [stdout] 7c07dfe34fb53215f57b18c79e2ac0750f76f56b2024cc6fa136c52c8896e191
Dec 19 13:15:21.068 INFO running `"docker" "start" "-a" "7c07dfe34fb53215f57b18c79e2ac0750f76f56b2024cc6fa136c52c8896e191"`
Dec 19 13:15:22.772 INFO [stderr]     Checking minigrep v0.1.0 (/opt/crater/workdir)
Dec 19 13:15:23.124 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 19 13:15:23.124 INFO [stderr]  --> src/lib.rs:3:5
Dec 19 13:15:23.124 INFO [stderr]   |
Dec 19 13:15:23.124 INFO [stderr] 3 | use std::io::prelude::*;
Dec 19 13:15:23.124 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 13:15:23.124 INFO [stderr]   |
Dec 19 13:15:23.124 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:15:23.124 INFO [stderr] 
Dec 19 13:15:23.216 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 19 13:15:23.216 INFO [stderr]  --> src/lib.rs:3:5
Dec 19 13:15:23.216 INFO [stderr]   |
Dec 19 13:15:23.216 INFO [stderr] 3 | use std::io::prelude::*;
Dec 19 13:15:23.216 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 19 13:15:23.216 INFO [stderr]   |
Dec 19 13:15:23.216 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:15:23.216 INFO [stderr] 
Dec 19 13:15:23.724 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Dec 19 13:15:24.801 INFO running `"docker" "inspect" "7c07dfe34fb53215f57b18c79e2ac0750f76f56b2024cc6fa136c52c8896e191"`
Dec 19 13:15:25.138 INFO running `"docker" "rm" "-f" "7c07dfe34fb53215f57b18c79e2ac0750f76f56b2024cc6fa136c52c8896e191"`
Dec 19 13:15:25.466 INFO [stdout] 7c07dfe34fb53215f57b18c79e2ac0750f76f56b2024cc6fa136c52c8896e191