Dec 12 04:37:38.563 INFO checking xflow-0.1.1 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 04:37:38.563 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 12 04:37:38.958 INFO [stdout] 40d738236a901ee44dbce9349970d53974fdc0abc1b02113cc1f25d3cfca89a5
Dec 12 04:37:38.968 INFO running `"docker" "start" "-a" "40d738236a901ee44dbce9349970d53974fdc0abc1b02113cc1f25d3cfca89a5"`
Dec 12 04:37:40.312 INFO [stderr] usermod: no changes
Dec 12 04:37:40.452 INFO [stderr]     Checking serde_json v0.9.10
Dec 12 04:37:42.788 INFO [stderr]     Checking xflow v0.1.1 (/source)
Dec 12 04:37:44.898 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:37:44.898 INFO [stderr]   --> src/dispatcher.rs:28:13
Dec 12 04:37:44.898 INFO [stderr]    |
Dec 12 04:37:44.898 INFO [stderr] 28 |             dispatch.dispatch(xfnode, xfstate);
Dec 12 04:37:44.898 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:37:44.898 INFO [stderr]    |
Dec 12 04:37:44.898 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 04:37:44.899 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:37:44.899 INFO [stderr] 
Dec 12 04:37:45.028 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 04:37:45.028 INFO [stderr]   --> src/dispatcher.rs:28:13
Dec 12 04:37:45.028 INFO [stderr]    |
Dec 12 04:37:45.028 INFO [stderr] 28 |             dispatch.dispatch(xfnode, xfstate);
Dec 12 04:37:45.028 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 04:37:45.028 INFO [stderr]    |
Dec 12 04:37:45.028 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 04:37:45.028 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 04:37:45.028 INFO [stderr] 
Dec 12 04:37:53.679 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.34s
Dec 12 04:37:53.700 INFO [stderr] su: No module specific data is present
Dec 12 04:37:54.466 INFO running `"docker" "inspect" "40d738236a901ee44dbce9349970d53974fdc0abc1b02113cc1f25d3cfca89a5"`
Dec 12 04:37:54.804 INFO running `"docker" "rm" "-f" "40d738236a901ee44dbce9349970d53974fdc0abc1b02113cc1f25d3cfca89a5"`
Dec 12 04:37:55.108 INFO [stdout] 40d738236a901ee44dbce9349970d53974fdc0abc1b02113cc1f25d3cfca89a5