Sep 17 19:41:44.176 INFO checking prophet-0.4.2 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 17 19:41:44.176 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 17 19:41:44.176 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-5/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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 +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 19:41:44.547 INFO blam! cf1d3fedc6938432de14758a8f1fc9ba00063888ba0e2474601c88489746ef22
Sep 17 19:41:44.551 INFO running `"docker" "start" "-a" "cf1d3fedc6938432de14758a8f1fc9ba00063888ba0e2474601c88489746ef22"`
Sep 17 19:41:46.774 INFO kablam! usermod: no changes
Sep 17 19:41:46.995 INFO kablam!    Compiling ndarray v0.10.14
Sep 17 19:41:56.735 INFO kablam!     Checking ndarray-rand v0.6.1
Sep 17 19:41:57.373 INFO kablam!     Checking prophet v0.4.2 (/source)
Sep 17 19:42:00.199 INFO kablam! warning: unused return value of `std::borrow::ToOwned::to_owned` which must be used
Sep 17 19:42:00.199 INFO kablam!    --> src/neural_net.rs:418:4
Sep 17 19:42:00.199 INFO kablam!     |
Sep 17 19:42:00.199 INFO kablam! 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
Sep 17 19:42:00.200 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 17 19:42:00.200 INFO kablam!     |
Sep 17 19:42:00.200 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 17 19:42:00.200 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 17 19:42:00.200 INFO kablam! 
Sep 17 19:42:01.203 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 14.39s
Sep 17 19:42:01.220 INFO kablam! su: No module specific data is present
Sep 17 19:42:01.949 INFO running `"docker" "rm" "-f" "cf1d3fedc6938432de14758a8f1fc9ba00063888ba0e2474601c88489746ef22"`
Sep 17 19:42:02.221 INFO blam! cf1d3fedc6938432de14758a8f1fc9ba00063888ba0e2474601c88489746ef22