Sep 10 12:38:06.392 INFO checking prophet-0.4.2 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 12:38:06.392 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 12:38:06.392 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-1/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 12:38:06.640 INFO blam! 3d892c20fccb0826375b86149224d437ec4d8a9c8a2f7cdfe9205f2624f1b071
Sep 10 12:38:06.643 INFO running `"docker" "start" "-a" "3d892c20fccb0826375b86149224d437ec4d8a9c8a2f7cdfe9205f2624f1b071"`
Sep 10 12:38:07.706 INFO kablam! usermod: no changes
Sep 10 12:38:07.834 INFO kablam!    Compiling ndarray v0.10.14
Sep 10 12:38:17.430 INFO kablam!     Checking ndarray-rand v0.6.1
Sep 10 12:38:17.951 INFO kablam!     Checking prophet v0.4.2 (file:///source)
Sep 10 12:38:21.046 INFO kablam! warning: unused return value of `std::borrow::ToOwned::to_owned` which must be used
Sep 10 12:38:21.046 INFO kablam!    --> src/neural_net.rs:418:4
Sep 10 12:38:21.046 INFO kablam!     |
Sep 10 12:38:21.046 INFO kablam! 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
Sep 10 12:38:21.046 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 12:38:21.046 INFO kablam!     |
Sep 10 12:38:21.046 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 12:38:21.046 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 10 12:38:21.046 INFO kablam! 
Sep 10 12:38:21.806 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 14.07s
Sep 10 12:38:21.816 INFO kablam! su: No module specific data is present
Sep 10 12:38:23.095 INFO running `"docker" "rm" "-f" "3d892c20fccb0826375b86149224d437ec4d8a9c8a2f7cdfe9205f2624f1b071"`
Sep 10 12:38:23.208 INFO blam! 3d892c20fccb0826375b86149224d437ec4d8a9c8a2f7cdfe9205f2624f1b071