Dec 12 11:06:12.585 INFO checking nbchan-0.1.3 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 11:06:12.585 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 11:06:13.028 INFO [stdout] 8ba0c407337bb698a481093759f1148f63ba7ae32ebf244014c7e6c9227c90ee
Dec 12 11:06:13.030 INFO running `"docker" "start" "-a" "8ba0c407337bb698a481093759f1148f63ba7ae32ebf244014c7e6c9227c90ee"`
Dec 12 11:06:15.734 INFO [stderr] usermod: no changes
Dec 12 11:06:15.792 INFO [stderr]     Checking nbchan v0.1.3 (/source)
Dec 12 11:06:17.893 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 12 11:06:17.893 INFO [stderr]   --> benches/lib.rs:38:9
Dec 12 11:06:17.893 INFO [stderr]    |
Dec 12 11:06:17.893 INFO [stderr] 38 |         tx.clone();
Dec 12 11:06:17.893 INFO [stderr]    |         ^^^^^^^^^^^
Dec 12 11:06:17.893 INFO [stderr]    |
Dec 12 11:06:17.893 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 11:06:17.893 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 12 11:06:17.893 INFO [stderr] 
Dec 12 11:06:17.894 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 12 11:06:17.894 INFO [stderr]   --> benches/lib.rs:46:9
Dec 12 11:06:17.894 INFO [stderr]    |
Dec 12 11:06:17.894 INFO [stderr] 46 |         tx.clone();
Dec 12 11:06:17.894 INFO [stderr]    |         ^^^^^^^^^^^
Dec 12 11:06:17.894 INFO [stderr]    |
Dec 12 11:06:17.894 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 12 11:06:17.894 INFO [stderr] 
Dec 12 11:06:17.913 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
Dec 12 11:06:17.917 INFO [stderr] su: No module specific data is present
Dec 12 11:06:18.298 INFO running `"docker" "inspect" "8ba0c407337bb698a481093759f1148f63ba7ae32ebf244014c7e6c9227c90ee"`
Dec 12 11:06:18.427 INFO running `"docker" "rm" "-f" "8ba0c407337bb698a481093759f1148f63ba7ae32ebf244014c7e6c9227c90ee"`
Dec 12 11:06:18.547 INFO [stdout] 8ba0c407337bb698a481093759f1148f63ba7ae32ebf244014c7e6c9227c90ee