Dec 17 15:48:56.581 INFO checking sebasmagri/rust-concurrency-patterns against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 15:48:56.581 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/gh/sebasmagri/rust-concurrency-patterns:/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 17 15:48:57.438 INFO [stdout] c22c35036748fff20d30c25b19a4908c4d26a97fc2c8618438f11cf349ba554f
Dec 17 15:48:57.440 INFO running `"docker" "start" "-a" "c22c35036748fff20d30c25b19a4908c4d26a97fc2c8618438f11cf349ba554f"`
Dec 17 15:48:59.740 INFO [stderr]     Checking concurrency-patterns v0.1.0 (/opt/crater/workdir)
Dec 17 15:49:00.548 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 15:49:00.548 INFO [stderr]   --> examples/04-fan-in.rs:32:5
Dec 17 15:49:00.548 INFO [stderr]    |
Dec 17 15:49:00.548 INFO [stderr] 32 |     consumer(Arc::new(Mutex::new(rx))).join();
Dec 17 15:49:00.548 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:49:00.548 INFO [stderr]    |
Dec 17 15:49:00.548 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 15:49:00.548 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 15:49:00.548 INFO [stderr] 
Dec 17 15:49:00.669 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Dec 17 15:49:01.824 INFO running `"docker" "inspect" "c22c35036748fff20d30c25b19a4908c4d26a97fc2c8618438f11cf349ba554f"`
Dec 17 15:49:02.178 INFO running `"docker" "rm" "-f" "c22c35036748fff20d30c25b19a4908c4d26a97fc2c8618438f11cf349ba554f"`
Dec 17 15:49:02.404 INFO [stdout] c22c35036748fff20d30c25b19a4908c4d26a97fc2c8618438f11cf349ba554f