Dec 19 14:00:43.121 INFO checking kryo4096/rust-chat against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 14:00:43.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/kryo4096/rust-chat:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 14:00:43.786 INFO [stdout] b75eb0c52595cce6864860f8c4802f173d2e3a7f4e31cec4e274225f7a9ce321
Dec 19 14:00:43.790 INFO running `"docker" "start" "-a" "b75eb0c52595cce6864860f8c4802f173d2e3a7f4e31cec4e274225f7a9ce321"`
Dec 19 14:00:45.456 INFO [stderr]     Checking mio v0.6.14
Dec 19 14:00:47.016 INFO [stderr]     Checking ws v0.7.6
Dec 19 14:00:48.716 INFO [stderr]     Checking chat v0.1.0 (/opt/crater/workdir)
Dec 19 14:00:49.100 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 14:00:49.100 INFO [stderr]   --> src/main.rs:41:15
Dec 19 14:00:49.100 INFO [stderr]    |
Dec 19 14:00:49.100 INFO [stderr] 41 |             if(command.len() > 0) {
Dec 19 14:00:49.100 INFO [stderr]    |               ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 14:00:49.100 INFO [stderr]    |
Dec 19 14:00:49.100 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 14:00:49.100 INFO [stderr] 
Dec 19 14:00:49.112 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 14:00:49.112 INFO [stderr]   --> src/main.rs:41:15
Dec 19 14:00:49.112 INFO [stderr]    |
Dec 19 14:00:49.112 INFO [stderr] 41 |             if(command.len() > 0) {
Dec 19 14:00:49.112 INFO [stderr]    |               ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 14:00:49.112 INFO [stderr]    |
Dec 19 14:00:49.112 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 14:00:49.112 INFO [stderr] 
Dec 19 14:00:49.188 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:00:49.188 INFO [stderr]   --> src/main.rs:45:25
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr] 45 |                         self.out.send("<span style=\"color: red\">Unknown Command</span><br>");
Dec 19 14:00:49.188 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 14:00:49.188 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:00:49.188 INFO [stderr] 
Dec 19 14:00:49.188 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:00:49.188 INFO [stderr]   --> src/main.rs:63:9
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr] 63 |         self.out.broadcast(format!("<span style=\"color: red\">{} has disconnected</span><br>",self.remote_addr));
Dec 19 14:00:49.188 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:00:49.188 INFO [stderr] 
Dec 19 14:00:49.188 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:00:49.188 INFO [stderr]   --> src/main.rs:45:25
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr] 45 |                         self.out.send("<span style=\"color: red\">Unknown Command</span><br>");
Dec 19 14:00:49.188 INFO [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 14:00:49.188 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:00:49.188 INFO [stderr] 
Dec 19 14:00:49.188 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 14:00:49.188 INFO [stderr]   --> src/main.rs:63:9
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr] 63 |         self.out.broadcast(format!("<span style=\"color: red\">{} has disconnected</span><br>",self.remote_addr));
Dec 19 14:00:49.188 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 14:00:49.188 INFO [stderr]    |
Dec 19 14:00:49.188 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 14:00:49.188 INFO [stderr] 
Dec 19 14:00:49.252 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.92s
Dec 19 14:00:50.088 INFO running `"docker" "inspect" "b75eb0c52595cce6864860f8c4802f173d2e3a7f4e31cec4e274225f7a9ce321"`
Dec 19 14:00:50.400 INFO running `"docker" "rm" "-f" "b75eb0c52595cce6864860f8c4802f173d2e3a7f4e31cec4e274225f7a9ce321"`
Dec 19 14:00:50.744 INFO [stdout] b75eb0c52595cce6864860f8c4802f173d2e3a7f4e31cec4e274225f7a9ce321