Dec 17 21:19:19.477 INFO checking knknkn1162/minigrep_test against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 21:19:19.477 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/knknkn1162/minigrep_test:/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 21:19:19.827 INFO [stdout] f3b0ef6f9ea0342e7d105a933473b7b4bd42c917c5776bb8ecdf0ff8cd7fc9cd
Dec 17 21:19:19.830 INFO running `"docker" "start" "-a" "f3b0ef6f9ea0342e7d105a933473b7b4bd42c917c5776bb8ecdf0ff8cd7fc9cd"`
Dec 17 21:19:20.580 INFO [stderr]     Checking minigrep v0.1.0 (/opt/crater/workdir)
Dec 17 21:19:20.799 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 17 21:19:20.799 INFO [stderr]   --> src/lib.rs:13:5
Dec 17 21:19:20.799 INFO [stderr]    |
Dec 17 21:19:20.799 INFO [stderr] 13 | /     search(&config.query, &contents, !config.case_sensitive).into_iter()
Dec 17 21:19:20.799 INFO [stderr] 14 | |         .inspect(|&line| println!("{}", line)).collect::<Vec<_>>();
Dec 17 21:19:20.799 INFO [stderr]    | |___________________________________________________________________^
Dec 17 21:19:20.799 INFO [stderr]    |
Dec 17 21:19:20.799 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 21:19:20.799 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 17 21:19:20.799 INFO [stderr] 
Dec 17 21:19:20.851 INFO [stderr] warning: unused return value of `std::iter::Iterator::collect` that must be used
Dec 17 21:19:20.851 INFO [stderr]   --> src/lib.rs:13:5
Dec 17 21:19:20.851 INFO [stderr]    |
Dec 17 21:19:20.851 INFO [stderr] 13 | /     search(&config.query, &contents, !config.case_sensitive).into_iter()
Dec 17 21:19:20.851 INFO [stderr] 14 | |         .inspect(|&line| println!("{}", line)).collect::<Vec<_>>();
Dec 17 21:19:20.851 INFO [stderr]    | |___________________________________________________________________^
Dec 17 21:19:20.851 INFO [stderr]    |
Dec 17 21:19:20.851 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 21:19:20.851 INFO [stderr]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
Dec 17 21:19:20.851 INFO [stderr] 
Dec 17 21:19:21.097 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 17 21:19:21.738 INFO running `"docker" "inspect" "f3b0ef6f9ea0342e7d105a933473b7b4bd42c917c5776bb8ecdf0ff8cd7fc9cd"`
Dec 17 21:19:21.910 INFO running `"docker" "rm" "-f" "f3b0ef6f9ea0342e7d105a933473b7b4bd42c917c5776bb8ecdf0ff8cd7fc9cd"`
Dec 17 21:19:22.052 INFO [stdout] f3b0ef6f9ea0342e7d105a933473b7b4bd42c917c5776bb8ecdf0ff8cd7fc9cd