Dec 19 21:30:24.530 INFO checking UMWACM/Archinbald against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:30:24.530 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/UMWACM/Archinbald:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:30:25.012 INFO [stdout] a4c4eaa527e449c63dcf76fd2d099d1f27af8e0e5b57ae53c5ce358617b1acdb
Dec 19 21:30:25.015 INFO running `"docker" "start" "-a" "a4c4eaa527e449c63dcf76fd2d099d1f27af8e0e5b57ae53c5ce358617b1acdb"`
Dec 19 21:30:28.138 INFO [stderr]     Checking serde_json v1.0.6
Dec 19 21:30:28.138 INFO [stderr]     Checking tokio-mockstream v1.1.0
Dec 19 21:30:28.139 INFO [stderr]     Checking chrono v0.4.0
Dec 19 21:30:28.139 INFO [stderr]     Checking error-chain v0.10.0
Dec 19 21:30:28.139 INFO [stderr]     Checking native-tls v0.1.4
Dec 19 21:30:30.334 INFO [stderr]     Checking tokio-tls v0.1.3
Dec 19 21:30:33.670 INFO [stderr]     Checking irc v0.12.5
Dec 19 21:30:36.464 INFO [stderr]     Checking archinbald v0.1.8 (/opt/crater/workdir)
Dec 19 21:30:39.674 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:30:39.675 INFO [stderr]   --> src/main.rs:23:5
Dec 19 21:30:39.675 INFO [stderr]    |
Dec 19 21:30:39.675 INFO [stderr] 23 | /     server.for_each_incoming(|message| {
Dec 19 21:30:39.675 INFO [stderr] 24 | |         print!("{}", message);
Dec 19 21:30:39.675 INFO [stderr] 25 | |         match message.command {
Dec 19 21:30:39.675 INFO [stderr] 26 | |             Command::PRIVMSG(ref target, ref msg) => {
Dec 19 21:30:39.675 INFO [stderr] ...  |
Dec 19 21:30:39.675 INFO [stderr] 78 | |         }
Dec 19 21:30:39.675 INFO [stderr] 79 | |     });
Dec 19 21:30:39.675 INFO [stderr]    | |_______^
Dec 19 21:30:39.675 INFO [stderr]    |
Dec 19 21:30:39.675 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:30:39.675 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:30:39.675 INFO [stderr] 
Dec 19 21:30:39.675 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:30:39.675 INFO [stderr]   --> src/main.rs:23:5
Dec 19 21:30:39.675 INFO [stderr]    |
Dec 19 21:30:39.675 INFO [stderr] 23 | /     server.for_each_incoming(|message| {
Dec 19 21:30:39.675 INFO [stderr] 24 | |         print!("{}", message);
Dec 19 21:30:39.675 INFO [stderr] 25 | |         match message.command {
Dec 19 21:30:39.675 INFO [stderr] 26 | |             Command::PRIVMSG(ref target, ref msg) => {
Dec 19 21:30:39.675 INFO [stderr] ...  |
Dec 19 21:30:39.675 INFO [stderr] 78 | |         }
Dec 19 21:30:39.675 INFO [stderr] 79 | |     });
Dec 19 21:30:39.675 INFO [stderr]    | |_______^
Dec 19 21:30:39.675 INFO [stderr]    |
Dec 19 21:30:39.675 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 21:30:39.675 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:30:39.675 INFO [stderr] 
Dec 19 21:30:39.724 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.83s
Dec 19 21:30:40.759 INFO running `"docker" "inspect" "a4c4eaa527e449c63dcf76fd2d099d1f27af8e0e5b57ae53c5ce358617b1acdb"`
Dec 19 21:30:41.022 INFO running `"docker" "rm" "-f" "a4c4eaa527e449c63dcf76fd2d099d1f27af8e0e5b57ae53c5ce358617b1acdb"`
Dec 19 21:30:41.308 INFO [stdout] a4c4eaa527e449c63dcf76fd2d099d1f27af8e0e5b57ae53c5ce358617b1acdb