Dec 19 20:36:12.528 INFO checking alyjak/distributed-chat against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 20:36:12.529 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/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:36:12.912 INFO [stdout] c02d82c7c9195ec14163460af08ebfd291aefc1e7e828d6a155d2961e88aff06
Dec 19 20:36:12.914 INFO running `"docker" "start" "-a" "c02d82c7c9195ec14163460af08ebfd291aefc1e7e828d6a155d2961e88aff06"`
Dec 19 20:36:14.705 INFO [stderr]     Checking assignment v0.1.0 (/opt/crater/workdir)
Dec 19 20:36:16.615 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:36:16.615 INFO [stderr]    --> src/message.rs:226:9
Dec 19 20:36:16.615 INFO [stderr]     |
Dec 19 20:36:16.615 INFO [stderr] 226 | /         write!(
Dec 19 20:36:16.615 INFO [stderr] 227 | |             f,
Dec 19 20:36:16.615 INFO [stderr] 228 | |             "[{} {}]",
Dec 19 20:36:16.615 INFO [stderr] 229 | |             unsafe { from_utf8_unchecked(&self.from[..]) },
Dec 19 20:36:16.615 INFO [stderr] 230 | |             self.typ
Dec 19 20:36:16.615 INFO [stderr] 231 | |         );
Dec 19 20:36:16.615 INFO [stderr]     | |__________^
Dec 19 20:36:16.615 INFO [stderr]     |
Dec 19 20:36:16.615 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 20:36:16.616 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:36:16.616 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 19 20:36:16.616 INFO [stderr] 
Dec 19 20:36:16.616 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:36:16.616 INFO [stderr]    --> src/message.rs:235:17
Dec 19 20:36:16.616 INFO [stderr]     |
Dec 19 20:36:16.616 INFO [stderr] 235 |                 write!(f, ": {}", unsafe { from_utf8_unchecked(&self.content[..]) });
Dec 19 20:36:16.616 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:36:16.616 INFO [stderr]     |
Dec 19 20:36:16.616 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:36:16.616 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 19 20:36:16.616 INFO [stderr] 
Dec 19 20:36:16.765 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:36:16.765 INFO [stderr]    --> src/message.rs:226:9
Dec 19 20:36:16.765 INFO [stderr]     |
Dec 19 20:36:16.765 INFO [stderr] 226 | /         write!(
Dec 19 20:36:16.765 INFO [stderr] 227 | |             f,
Dec 19 20:36:16.765 INFO [stderr] 228 | |             "[{} {}]",
Dec 19 20:36:16.765 INFO [stderr] 229 | |             unsafe { from_utf8_unchecked(&self.from[..]) },
Dec 19 20:36:16.765 INFO [stderr] 230 | |             self.typ
Dec 19 20:36:16.765 INFO [stderr] 231 | |         );
Dec 19 20:36:16.766 INFO [stderr]     | |__________^
Dec 19 20:36:16.766 INFO [stderr]     |
Dec 19 20:36:16.766 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 20:36:16.766 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:36:16.767 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 19 20:36:16.767 INFO [stderr] 
Dec 19 20:36:16.768 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 20:36:16.768 INFO [stderr]    --> src/message.rs:235:17
Dec 19 20:36:16.768 INFO [stderr]     |
Dec 19 20:36:16.769 INFO [stderr] 235 |                 write!(f, ": {}", unsafe { from_utf8_unchecked(&self.content[..]) });
Dec 19 20:36:16.769 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 20:36:16.769 INFO [stderr]     |
Dec 19 20:36:16.769 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 20:36:16.769 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 19 20:36:16.769 INFO [stderr] 
Dec 19 20:36:18.060 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
Dec 19 20:36:19.429 INFO running `"docker" "inspect" "c02d82c7c9195ec14163460af08ebfd291aefc1e7e828d6a155d2961e88aff06"`
Dec 19 20:36:19.770 INFO running `"docker" "rm" "-f" "c02d82c7c9195ec14163460af08ebfd291aefc1e7e828d6a155d2961e88aff06"`
Dec 19 20:36:20.180 INFO [stdout] c02d82c7c9195ec14163460af08ebfd291aefc1e7e828d6a155d2961e88aff06