Dec 05 10:05:23.000 INFO checking nbchan-0.1.3 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 10:05:23.000 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 05 10:05:23.499 INFO [stdout] 1697d2868cc7391aba1c724511dc57f0f50089932e5c144d5e535234fc079462
Dec 05 10:05:23.501 INFO running `"docker" "start" "-a" "1697d2868cc7391aba1c724511dc57f0f50089932e5c144d5e535234fc079462"`
Dec 05 10:05:25.227 INFO [stderr] usermod: no changes
Dec 05 10:05:25.331 INFO [stderr]     Checking nbchan v0.1.3 (/source)
Dec 05 10:05:27.581 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 05 10:05:27.581 INFO [stderr]   --> benches/lib.rs:38:9
Dec 05 10:05:27.581 INFO [stderr]    |
Dec 05 10:05:27.581 INFO [stderr] 38 |         tx.clone();
Dec 05 10:05:27.581 INFO [stderr]    |         ^^^^^^^^^^^
Dec 05 10:05:27.581 INFO [stderr]    |
Dec 05 10:05:27.581 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 10:05:27.581 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 05 10:05:27.581 INFO [stderr] 
Dec 05 10:05:27.581 INFO [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
Dec 05 10:05:27.581 INFO [stderr]   --> benches/lib.rs:46:9
Dec 05 10:05:27.581 INFO [stderr]    |
Dec 05 10:05:27.581 INFO [stderr] 46 |         tx.clone();
Dec 05 10:05:27.581 INFO [stderr]    |         ^^^^^^^^^^^
Dec 05 10:05:27.581 INFO [stderr]    |
Dec 05 10:05:27.581 INFO [stderr]    = note: cloning is often expensive and is not expected to have side effects
Dec 05 10:05:27.581 INFO [stderr] 
Dec 05 10:05:27.603 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.35s
Dec 05 10:05:27.605 INFO [stderr] su: No module specific data is present
Dec 05 10:05:28.690 INFO running `"docker" "inspect" "1697d2868cc7391aba1c724511dc57f0f50089932e5c144d5e535234fc079462"`
Dec 05 10:05:28.989 INFO running `"docker" "rm" "-f" "1697d2868cc7391aba1c724511dc57f0f50089932e5c144d5e535234fc079462"`
Dec 05 10:05:29.311 INFO [stdout] 1697d2868cc7391aba1c724511dc57f0f50089932e5c144d5e535234fc079462