Dec 18 15:22:33.018 INFO checking grrs-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 15:22:33.018 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/grrs/0.1.0:/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 15:22:33.311 INFO [stdout] 6549fc115a0ef36b4871c63cabd417d1c4027492a5ac8bfb605e1ae2f11a42e9
Dec 18 15:22:33.314 INFO running `"docker" "start" "-a" "6549fc115a0ef36b4871c63cabd417d1c4027492a5ac8bfb605e1ae2f11a42e9"`
Dec 18 15:22:34.073 INFO [stderr]     Checking predicates v1.0.0
Dec 18 15:22:34.074 INFO [stderr]     Checking exitfailure v0.5.1
Dec 18 15:22:35.708 INFO [stderr]     Checking assert_cmd v0.10.2
Dec 18 15:22:38.908 INFO [stderr]     Checking grrs v0.1.0 (/opt/crater/workdir)
Dec 18 15:22:41.128 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 15:22:41.128 INFO [stderr]   --> src/main.rs:30:5
Dec 18 15:22:41.128 INFO [stderr]    |
Dec 18 15:22:41.128 INFO [stderr] 30 |     grrs::find_matches("lorem ipsum\ndolor sit amet", "lorem", &mut result);
Dec 18 15:22:41.128 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 15:22:41.128 INFO [stderr]    |
Dec 18 15:22:41.128 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 15:22:41.128 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 15:22:41.128 INFO [stderr] 
Dec 18 15:22:41.248 INFO [stderr] warning: unused import: `self`
Dec 18 15:22:41.248 INFO [stderr]  --> tests/cli.rs:5:15
Dec 18 15:22:41.248 INFO [stderr]   |
Dec 18 15:22:41.248 INFO [stderr] 5 | use std::io::{self, Write};
Dec 18 15:22:41.248 INFO [stderr]   |               ^^^^
Dec 18 15:22:41.249 INFO [stderr]   |
Dec 18 15:22:41.252 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 15:22:41.252 INFO [stderr] 
Dec 18 15:22:41.380 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.48s
Dec 18 15:22:41.980 INFO running `"docker" "inspect" "6549fc115a0ef36b4871c63cabd417d1c4027492a5ac8bfb605e1ae2f11a42e9"`
Dec 18 15:22:42.206 INFO running `"docker" "rm" "-f" "6549fc115a0ef36b4871c63cabd417d1c4027492a5ac8bfb605e1ae2f11a42e9"`
Dec 18 15:22:42.504 INFO [stdout] 6549fc115a0ef36b4871c63cabd417d1c4027492a5ac8bfb605e1ae2f11a42e9