Oct 13 10:37:19.796 INFO checking prophet-0.4.2 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 10:37:19.798 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 10:37:20.207 INFO blam! 214aebf0f02adda45c55383e52431c19488da3756a884ce0888adf13924ee763
Oct 13 10:37:20.208 INFO running `"docker" "start" "-a" "214aebf0f02adda45c55383e52431c19488da3756a884ce0888adf13924ee763"`
Oct 13 10:37:22.285 INFO kablam! usermod: no changes
Oct 13 10:37:22.436 INFO kablam!    Compiling ndarray v0.10.14
Oct 13 10:37:33.018 INFO kablam!     Checking ndarray-rand v0.6.1
Oct 13 10:37:34.460 INFO kablam!     Checking prophet v0.4.2 (/source)
Oct 13 10:37:39.468 INFO kablam! warning: unused return value of `std::borrow::ToOwned::to_owned` which must be used
Oct 13 10:37:39.468 INFO kablam!    --> src/neural_net.rs:418:4
Oct 13 10:37:39.468 INFO kablam!     |
Oct 13 10:37:39.468 INFO kablam! 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
Oct 13 10:37:39.468 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 10:37:39.468 INFO kablam!     |
Oct 13 10:37:39.468 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 10:37:39.468 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Oct 13 10:37:39.468 INFO kablam! 
Oct 13 10:37:42.964 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 20.64s
Oct 13 10:37:43.000 INFO kablam! su: No module specific data is present
Oct 13 10:37:43.604 INFO running `"docker" "rm" "-f" "214aebf0f02adda45c55383e52431c19488da3756a884ce0888adf13924ee763"`
Oct 13 10:37:43.865 INFO blam! 214aebf0f02adda45c55383e52431c19488da3756a884ce0888adf13924ee763