Dec 11 22:13:59.665 INFO checking austbot/tab against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 22:13:59.665 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 22:13:59.948 INFO [stdout] 87579ec093fd662cb95b3323b02c419c2412b6803c0d67c0a071baf16ebe9368
Dec 11 22:13:59.952 INFO running `"docker" "start" "-a" "87579ec093fd662cb95b3323b02c419c2412b6803c0d67c0a071baf16ebe9368"`
Dec 11 22:14:01.148 INFO [stderr] usermod: no changes
Dec 11 22:14:01.216 INFO [stderr]     Checking swim v0.1.0 (/source/swim)
Dec 11 22:14:01.801 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 22:14:01.802 INFO [stderr]   --> swim/src/lib.rs:54:9
Dec 11 22:14:01.802 INFO [stderr]    |
Dec 11 22:14:01.802 INFO [stderr] 54 |         self.sender.as_ref().unwrap().send(job);
Dec 11 22:14:01.802 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 22:14:01.802 INFO [stderr]    |
Dec 11 22:14:01.802 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 22:14:01.802 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 22:14:01.802 INFO [stderr] 
Dec 11 22:14:01.920 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 22:14:01.920 INFO [stderr]   --> swim/src/lib.rs:54:9
Dec 11 22:14:01.920 INFO [stderr]    |
Dec 11 22:14:01.920 INFO [stderr] 54 |         self.sender.as_ref().unwrap().send(job);
Dec 11 22:14:01.920 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 22:14:01.920 INFO [stderr]    |
Dec 11 22:14:01.920 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 22:14:01.920 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 22:14:01.920 INFO [stderr] 
Dec 11 22:14:01.944 INFO [stderr]     Checking tab v0.1.0 (/source)
Dec 11 22:14:02.651 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
Dec 11 22:14:02.654 INFO [stderr] su: No module specific data is present
Dec 11 22:14:03.715 INFO running `"docker" "inspect" "87579ec093fd662cb95b3323b02c419c2412b6803c0d67c0a071baf16ebe9368"`
Dec 11 22:14:03.888 INFO running `"docker" "rm" "-f" "87579ec093fd662cb95b3323b02c419c2412b6803c0d67c0a071baf16ebe9368"`
Dec 11 22:14:04.035 INFO [stdout] 87579ec093fd662cb95b3323b02c419c2412b6803c0d67c0a071baf16ebe9368