Dec 05 08:50:44.684 INFO checking prophet-0.4.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 08:50:44.684 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 08:50:45.095 INFO [stdout] 0adc12a1a5ef8aa9709c0259f00c1ef2f48a19852ba3962b0ab6b2e0f413fdb5
Dec 05 08:50:45.097 INFO running `"docker" "start" "-a" "0adc12a1a5ef8aa9709c0259f00c1ef2f48a19852ba3962b0ab6b2e0f413fdb5"`
Dec 05 08:50:46.075 INFO [stderr] usermod: no changes
Dec 05 08:50:46.241 INFO [stderr]    Compiling ndarray v0.10.14
Dec 05 08:50:55.161 INFO [stderr]     Checking ndarray-rand v0.6.1
Dec 05 08:50:56.413 INFO [stderr]     Checking prophet v0.4.2 (/source)
Dec 05 08:51:01.507 INFO [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
Dec 05 08:51:01.507 INFO [stderr]    --> src/neural_net.rs:418:4
Dec 05 08:51:01.507 INFO [stderr]     |
Dec 05 08:51:01.507 INFO [stderr] 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
Dec 05 08:51:01.507 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:51:01.507 INFO [stderr]     |
Dec 05 08:51:01.507 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 08:51:01.507 INFO [stderr]     = note: cloning is often expensive and is not expected to have side effects
Dec 05 08:51:01.507 INFO [stderr] 
Dec 05 08:51:03.472 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.37s
Dec 05 08:51:03.478 INFO [stderr] su: No module specific data is present
Dec 05 08:51:04.884 INFO running `"docker" "inspect" "0adc12a1a5ef8aa9709c0259f00c1ef2f48a19852ba3962b0ab6b2e0f413fdb5"`
Dec 05 08:51:05.248 INFO running `"docker" "rm" "-f" "0adc12a1a5ef8aa9709c0259f00c1ef2f48a19852ba3962b0ab6b2e0f413fdb5"`
Dec 05 08:51:05.607 INFO [stdout] 0adc12a1a5ef8aa9709c0259f00c1ef2f48a19852ba3962b0ab6b2e0f413fdb5