Dec 17 20:16:31.434 INFO checking mahulst/rust-playground-w against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 20:16:31.434 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 20:16:31.936 INFO [stdout] 0f2f4bb10a92a051d4668b57797146dfc8e1f9e413c1e3548239f819fa18eef6
Dec 17 20:16:31.938 INFO running `"docker" "start" "-a" "0f2f4bb10a92a051d4668b57797146dfc8e1f9e413c1e3548239f819fa18eef6"`
Dec 17 20:16:33.808 INFO [stderr]     Checking minigrep v0.1.0 (/opt/crater/workdir)
Dec 17 20:16:34.236 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 17 20:16:34.236 INFO [stderr]  --> src/lib.rs:3:5
Dec 17 20:16:34.236 INFO [stderr]   |
Dec 17 20:16:34.236 INFO [stderr] 3 | use std::io::prelude::*;
Dec 17 20:16:34.236 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 17 20:16:34.268 INFO [stderr]   |
Dec 17 20:16:34.268 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 20:16:34.268 INFO [stderr] 
Dec 17 20:16:34.332 INFO [stderr] warning: unused import: `std::io::prelude`
Dec 17 20:16:34.332 INFO [stderr]  --> src/lib.rs:3:5
Dec 17 20:16:34.332 INFO [stderr]   |
Dec 17 20:16:34.332 INFO [stderr] 3 | use std::io::prelude::*;
Dec 17 20:16:34.332 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 17 20:16:34.332 INFO [stderr]   |
Dec 17 20:16:34.332 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 20:16:34.332 INFO [stderr] 
Dec 17 20:16:34.696 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Dec 17 20:16:35.506 INFO running `"docker" "inspect" "0f2f4bb10a92a051d4668b57797146dfc8e1f9e413c1e3548239f819fa18eef6"`
Dec 17 20:16:35.812 INFO running `"docker" "rm" "-f" "0f2f4bb10a92a051d4668b57797146dfc8e1f9e413c1e3548239f819fa18eef6"`
Dec 17 20:16:36.227 INFO [stdout] 0f2f4bb10a92a051d4668b57797146dfc8e1f9e413c1e3548239f819fa18eef6