Dec 04 22:14:48.123 INFO checking austbot/tab against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 22:14:48.123 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 04 22:14:48.796 INFO [stdout] 6135a0e79933455e01f0ce674fa43f312059bcc6db8604fa47b3b550909988d4
Dec 04 22:14:48.798 INFO running `"docker" "start" "-a" "6135a0e79933455e01f0ce674fa43f312059bcc6db8604fa47b3b550909988d4"`
Dec 04 22:14:50.110 INFO [stderr] usermod: no changes
Dec 04 22:14:50.210 INFO [stderr]     Checking swim v0.1.0 (/source/swim)
Dec 04 22:14:50.863 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:14:50.863 INFO [stderr]   --> swim/src/lib.rs:54:9
Dec 04 22:14:50.863 INFO [stderr]    |
Dec 04 22:14:50.863 INFO [stderr] 54 |         self.sender.as_ref().unwrap().send(job);
Dec 04 22:14:50.863 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:14:50.863 INFO [stderr]    |
Dec 04 22:14:50.863 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 22:14:50.863 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:14:50.863 INFO [stderr] 
Dec 04 22:14:50.883 INFO [stderr]     Checking tab v0.1.0 (/source)
Dec 04 22:14:51.052 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 22:14:51.052 INFO [stderr]   --> swim/src/lib.rs:54:9
Dec 04 22:14:51.052 INFO [stderr]    |
Dec 04 22:14:51.052 INFO [stderr] 54 |         self.sender.as_ref().unwrap().send(job);
Dec 04 22:14:51.053 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:14:51.053 INFO [stderr]    |
Dec 04 22:14:51.053 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 22:14:51.053 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 22:14:51.053 INFO [stderr] 
Dec 04 22:14:51.739 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
Dec 04 22:14:51.739 INFO [stderr] su: No module specific data is present
Dec 04 22:14:52.286 INFO running `"docker" "inspect" "6135a0e79933455e01f0ce674fa43f312059bcc6db8604fa47b3b550909988d4"`
Dec 04 22:14:52.535 INFO running `"docker" "rm" "-f" "6135a0e79933455e01f0ce674fa43f312059bcc6db8604fa47b3b550909988d4"`
Dec 04 22:14:52.817 INFO [stdout] 6135a0e79933455e01f0ce674fa43f312059bcc6db8604fa47b3b550909988d4