Dec 11 22:48:25.586 INFO checking aleyan/langtonsant against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 22:48:25.586 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 22:48:26.062 INFO [stdout] 383e8768341890992dcba52eac8ed1e5d4ca7c8839ad0956b5e8ea9348440878
Dec 11 22:48:26.064 INFO running `"docker" "start" "-a" "383e8768341890992dcba52eac8ed1e5d4ca7c8839ad0956b5e8ea9348440878"`
Dec 11 22:48:27.896 INFO [stderr] usermod: no changes
Dec 11 22:48:28.150 INFO [stderr]    Compiling syn v0.14.9
Dec 11 22:48:28.150 INFO [stderr]    Compiling palette v0.4.1
Dec 11 22:48:41.445 INFO [stderr]    Compiling palette_derive v0.4.1
Dec 11 22:48:52.335 INFO [stderr]     Checking langtonsant v0.1.0 (/source)
Dec 11 22:48:55.326 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 22:48:55.326 INFO [stderr]    --> src/canvas.rs:174:9
Dec 11 22:48:55.326 INFO [stderr]     |
Dec 11 22:48:55.326 INFO [stderr] 174 | /         write!(
Dec 11 22:48:55.326 INFO [stderr] 175 | |             out,
Dec 11 22:48:55.326 INFO [stderr] 176 | |             "{}{}{}",
Dec 11 22:48:55.326 INFO [stderr] 177 | |             cursor::Goto(1, (self.rows + 1) as u16),
Dec 11 22:48:55.326 INFO [stderr] 178 | |             style::Reset,
Dec 11 22:48:55.326 INFO [stderr] 179 | |             cursor::Show
Dec 11 22:48:55.326 INFO [stderr] 180 | |         );
Dec 11 22:48:55.326 INFO [stderr]     | |__________^
Dec 11 22:48:55.326 INFO [stderr]     |
Dec 11 22:48:55.326 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 22:48:55.326 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 22:48:55.326 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 11 22:48:55.326 INFO [stderr] 
Dec 11 22:48:55.373 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 22:48:55.373 INFO [stderr]    --> src/canvas.rs:174:9
Dec 11 22:48:55.373 INFO [stderr]     |
Dec 11 22:48:55.373 INFO [stderr] 174 | /         write!(
Dec 11 22:48:55.373 INFO [stderr] 175 | |             out,
Dec 11 22:48:55.373 INFO [stderr] 176 | |             "{}{}{}",
Dec 11 22:48:55.373 INFO [stderr] 177 | |             cursor::Goto(1, (self.rows + 1) as u16),
Dec 11 22:48:55.373 INFO [stderr] 178 | |             style::Reset,
Dec 11 22:48:55.373 INFO [stderr] 179 | |             cursor::Show
Dec 11 22:48:55.373 INFO [stderr] 180 | |         );
Dec 11 22:48:55.373 INFO [stderr]     | |__________^
Dec 11 22:48:55.373 INFO [stderr]     |
Dec 11 22:48:55.373 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 22:48:55.373 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 22:48:55.376 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 11 22:48:55.376 INFO [stderr] 
Dec 11 22:48:55.442 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.51s
Dec 11 22:48:55.464 INFO [stderr] su: No module specific data is present
Dec 11 22:48:56.700 INFO running `"docker" "inspect" "383e8768341890992dcba52eac8ed1e5d4ca7c8839ad0956b5e8ea9348440878"`
Dec 11 22:48:57.050 INFO running `"docker" "rm" "-f" "383e8768341890992dcba52eac8ed1e5d4ca7c8839ad0956b5e8ea9348440878"`
Dec 11 22:48:57.351 INFO [stdout] 383e8768341890992dcba52eac8ed1e5d4ca7c8839ad0956b5e8ea9348440878