Dec 18 08:21:20.778 INFO checking BrandtNick/rust-minigrep against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:21:20.778 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/BrandtNick/rust-minigrep:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:21:21.325 INFO [stdout] 0dd5434a8dbae1cbcd6276ba9bf71c6ffac7ace9a62dca420b9a7fde60fb1acb
Dec 18 08:21:21.332 INFO running `"docker" "start" "-a" "0dd5434a8dbae1cbcd6276ba9bf71c6ffac7ace9a62dca420b9a7fde60fb1acb"`
Dec 18 08:21:23.680 INFO [stderr]     Checking minigrep v0.1.0 (/opt/crater/workdir)
Dec 18 08:21:24.184 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 18 08:21:24.184 INFO [stderr]  --> src/lib.rs:2:5
Dec 18 08:21:24.184 INFO [stderr]   |
Dec 18 08:21:24.184 INFO [stderr] 2 | use std::io::prelude::*;
Dec 18 08:21:24.184 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 08:21:24.184 INFO [stderr]   |
Dec 18 08:21:24.184 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:21:24.184 INFO [stderr] 
Dec 18 08:21:24.260 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 18 08:21:24.260 INFO [stderr]  --> src/lib.rs:2:5
Dec 18 08:21:24.260 INFO [stderr]   |
Dec 18 08:21:24.260 INFO [stderr] 2 | use std::io::prelude::*;
Dec 18 08:21:24.260 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 18 08:21:24.260 INFO [stderr]   |
Dec 18 08:21:24.260 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 08:21:24.260 INFO [stderr] 
Dec 18 08:21:24.973 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Dec 18 08:21:26.132 INFO running `"docker" "inspect" "0dd5434a8dbae1cbcd6276ba9bf71c6ffac7ace9a62dca420b9a7fde60fb1acb"`
Dec 18 08:21:26.500 INFO running `"docker" "rm" "-f" "0dd5434a8dbae1cbcd6276ba9bf71c6ffac7ace9a62dca420b9a7fde60fb1acb"`
Dec 18 08:21:26.888 INFO [stdout] 0dd5434a8dbae1cbcd6276ba9bf71c6ffac7ace9a62dca420b9a7fde60fb1acb