Dec 18 04:07:21.588 INFO checking alyjak/distributed-chat against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 04:07:21.588 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/alyjak/distributed-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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:07:22.165 INFO [stdout] 1d0d650a7fcfacbb8f48324f69e5a9f3e93a033a6b4577c8beac98ac6c8f57f4
Dec 18 04:07:22.170 INFO running `"docker" "start" "-a" "1d0d650a7fcfacbb8f48324f69e5a9f3e93a033a6b4577c8beac98ac6c8f57f4"`
Dec 18 04:07:23.290 INFO [stderr]     Checking tokio-io v0.1.10
Dec 18 04:07:24.568 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 18 04:07:24.568 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 18 04:07:24.568 INFO [stderr]     Checking tokio-fs v0.1.4
Dec 18 04:07:26.233 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 18 04:07:26.234 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 18 04:07:26.235 INFO [stderr]     Checking tokio-uds v0.2.3
Dec 18 04:07:28.261 INFO [stderr]     Checking tokio v0.1.11
Dec 18 04:07:29.296 INFO [stderr]     Checking assignment v0.1.0 (/opt/crater/workdir)
Dec 18 04:07:31.288 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:07:31.289 INFO [stderr]    --> src/message.rs:226:9
Dec 18 04:07:31.289 INFO [stderr]     |
Dec 18 04:07:31.289 INFO [stderr] 226 | /         write!(
Dec 18 04:07:31.289 INFO [stderr] 227 | |             f,
Dec 18 04:07:31.290 INFO [stderr] 228 | |             "[{} {}]",
Dec 18 04:07:31.290 INFO [stderr] 229 | |             unsafe { from_utf8_unchecked(&self.from[..]) },
Dec 18 04:07:31.290 INFO [stderr] 230 | |             self.typ
Dec 18 04:07:31.290 INFO [stderr] 231 | |         );
Dec 18 04:07:31.291 INFO [stderr]     | |__________^
Dec 18 04:07:31.291 INFO [stderr]     |
Dec 18 04:07:31.291 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 04:07:31.291 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:07:31.292 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 04:07:31.292 INFO [stderr] 
Dec 18 04:07:31.292 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:07:31.292 INFO [stderr]    --> src/message.rs:235:17
Dec 18 04:07:31.292 INFO [stderr]     |
Dec 18 04:07:31.293 INFO [stderr] 235 |                 write!(f, ": {}", unsafe { from_utf8_unchecked(&self.content[..]) });
Dec 18 04:07:31.293 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:07:31.293 INFO [stderr]     |
Dec 18 04:07:31.293 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:07:31.294 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 04:07:31.294 INFO [stderr] 
Dec 18 04:07:31.308 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:07:31.309 INFO [stderr]    --> src/message.rs:226:9
Dec 18 04:07:31.309 INFO [stderr]     |
Dec 18 04:07:31.309 INFO [stderr] 226 | /         write!(
Dec 18 04:07:31.309 INFO [stderr] 227 | |             f,
Dec 18 04:07:31.310 INFO [stderr] 228 | |             "[{} {}]",
Dec 18 04:07:31.310 INFO [stderr] 229 | |             unsafe { from_utf8_unchecked(&self.from[..]) },
Dec 18 04:07:31.310 INFO [stderr] 230 | |             self.typ
Dec 18 04:07:31.310 INFO [stderr] 231 | |         );
Dec 18 04:07:31.311 INFO [stderr]     | |__________^
Dec 18 04:07:31.311 INFO [stderr]     |
Dec 18 04:07:31.311 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 04:07:31.311 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:07:31.312 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 04:07:31.312 INFO [stderr] 
Dec 18 04:07:31.312 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:07:31.312 INFO [stderr]    --> src/message.rs:235:17
Dec 18 04:07:31.312 INFO [stderr]     |
Dec 18 04:07:31.313 INFO [stderr] 235 |                 write!(f, ": {}", unsafe { from_utf8_unchecked(&self.content[..]) });
Dec 18 04:07:31.313 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:07:31.313 INFO [stderr]     |
Dec 18 04:07:31.313 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:07:31.314 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 04:07:31.314 INFO [stderr] 
Dec 18 04:07:32.899 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.77s
Dec 18 04:07:34.080 INFO running `"docker" "inspect" "1d0d650a7fcfacbb8f48324f69e5a9f3e93a033a6b4577c8beac98ac6c8f57f4"`
Dec 18 04:07:34.310 INFO running `"docker" "rm" "-f" "1d0d650a7fcfacbb8f48324f69e5a9f3e93a033a6b4577c8beac98ac6c8f57f4"`
Dec 18 04:07:34.672 INFO [stdout] 1d0d650a7fcfacbb8f48324f69e5a9f3e93a033a6b4577c8beac98ac6c8f57f4