Sep 04 07:37:58.174 INFO checking prophet-0.4.2 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 07:37:58.174 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 07:37:58.174 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 07:37:58.358 INFO blam! 222e06733857e2b0f4c21b364f043e2c68066b63d829de28e9651f3873803f6c
Sep 04 07:37:58.359 INFO running `"docker" "start" "-a" "222e06733857e2b0f4c21b364f043e2c68066b63d829de28e9651f3873803f6c"`
Sep 04 07:37:58.979 INFO kablam!    Compiling ndarray v0.10.14
Sep 04 07:38:11.856 INFO kablam!     Checking ndarray-rand v0.6.1
Sep 04 07:38:12.603 INFO kablam!     Checking prophet v0.4.2 (file:///source)
Sep 04 07:38:15.133 INFO kablam! warning: unused return value of `std::borrow::ToOwned::to_owned` which must be used
Sep 04 07:38:15.133 INFO kablam!    --> src/neural_net.rs:418:4
Sep 04 07:38:15.133 INFO kablam!     |
Sep 04 07:38:15.133 INFO kablam! 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
Sep 04 07:38:15.133 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 07:38:15.133 INFO kablam!     |
Sep 04 07:38:15.133 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 04 07:38:15.133 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 04 07:38:15.133 INFO kablam! 
Sep 04 07:38:16.265 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 17.35s
Sep 04 07:38:16.271 INFO kablam! su: No module specific data is present
Sep 04 07:38:16.661 INFO running `"docker" "rm" "-f" "222e06733857e2b0f4c21b364f043e2c68066b63d829de28e9651f3873803f6c"`
Sep 04 07:38:16.760 INFO blam! 222e06733857e2b0f4c21b364f043e2c68066b63d829de28e9651f3873803f6c