Sep 19 20:40:10.161 INFO checking prophet-0.4.2 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 20:40:10.161 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 20:40:10.161 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-4/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 20:40:10.504 INFO blam! cf9112aeb1e227c67b7c138e17df912f50937260f2d33f18795a38bc32bde38e
Sep 19 20:40:10.511 INFO running `"docker" "start" "-a" "cf9112aeb1e227c67b7c138e17df912f50937260f2d33f18795a38bc32bde38e"`
Sep 19 20:40:12.151 INFO kablam! usermod: no changes
Sep 19 20:40:12.291 INFO kablam!    Compiling ndarray v0.10.14
Sep 19 20:40:21.683 INFO kablam!     Checking ndarray-rand v0.6.1
Sep 19 20:40:22.311 INFO kablam!     Checking prophet v0.4.2 (/source)
Sep 19 20:40:25.359 INFO kablam! warning: unused return value of `std::borrow::ToOwned::to_owned` which must be used
Sep 19 20:40:25.359 INFO kablam!    --> src/neural_net.rs:418:4
Sep 19 20:40:25.359 INFO kablam!     |
Sep 19 20:40:25.359 INFO kablam! 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
Sep 19 20:40:25.359 INFO kablam!     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 20:40:25.359 INFO kablam!     |
Sep 19 20:40:25.359 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 19 20:40:25.359 INFO kablam!     = note: cloning is often expensive and is not expected to have side effects
Sep 19 20:40:25.359 INFO kablam! 
Sep 19 20:40:25.563 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 13.37s
Sep 19 20:40:25.575 INFO kablam! su: No module specific data is present
Sep 19 20:40:26.626 INFO running `"docker" "rm" "-f" "cf9112aeb1e227c67b7c138e17df912f50937260f2d33f18795a38bc32bde38e"`
Sep 19 20:40:26.888 INFO blam! cf9112aeb1e227c67b7c138e17df912f50937260f2d33f18795a38bc32bde38e