[INFO] crate prophet 0.4.2 is already in cache
[INFO] testing prophet-0.4.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate prophet 0.4.2 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate prophet 0.4.2 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate prophet 0.4.2
[INFO] finished tweaking crates.io crate prophet 0.4.2
[INFO] tweaked toml for crates.io crate prophet 0.4.2 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] caf295ebce0246b0a813c7ce46a848432ca5fbf6276c17b6f056cf19e15202ba
[INFO] running `"docker" "start" "-a" "caf295ebce0246b0a813c7ce46a848432ca5fbf6276c17b6f056cf19e15202ba"`
[INFO] [stderr]    Compiling ndarray v0.10.14
[INFO] [stderr]    Compiling ndarray-rand v0.6.1
[INFO] [stderr]    Compiling prophet v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.36s
[INFO] running `"docker" "inspect" "caf295ebce0246b0a813c7ce46a848432ca5fbf6276c17b6f056cf19e15202ba"`
[INFO] running `"docker" "rm" "-f" "caf295ebce0246b0a813c7ce46a848432ca5fbf6276c17b6f056cf19e15202ba"`
[INFO] [stdout] caf295ebce0246b0a813c7ce46a848432ca5fbf6276c17b6f056cf19e15202ba
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] db2834f729f7f3fd6e31d17057ac09d176184e17a9f78730a1376cc42fa1945a
[INFO] running `"docker" "start" "-a" "db2834f729f7f3fd6e31d17057ac09d176184e17a9f78730a1376cc42fa1945a"`
[INFO] [stderr]    Compiling prophet v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::borrow::ToOwned::to_owned` that must be used
[INFO] [stderr]    --> src/neural_net.rs:418:4
[INFO] [stderr]     |
[INFO] [stderr] 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "db2834f729f7f3fd6e31d17057ac09d176184e17a9f78730a1376cc42fa1945a"`
[INFO] running `"docker" "rm" "-f" "db2834f729f7f3fd6e31d17057ac09d176184e17a9f78730a1376cc42fa1945a"`
[INFO] [stdout] db2834f729f7f3fd6e31d17057ac09d176184e17a9f78730a1376cc42fa1945a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] cf78f17be13c0914de4bb9ee8b1a927b8280f6373aee84b0eec44198843a06a6
[INFO] running `"docker" "start" "-a" "cf78f17be13c0914de4bb9ee8b1a927b8280f6373aee84b0eec44198843a06a6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prophet-6778a1a973ee29dd
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test activation::tests::bent_identity ... ok
[INFO] [stdout] test activation::tests::binary_step ... ok
[INFO] [stdout] test activation::tests::arctan ... ok
[INFO] [stdout] test activation::tests::gaussian ... ok
[INFO] [stdout] test activation::tests::relu ... ok
[INFO] [stdout] test activation::tests::identity ... ok
[INFO] [stdout] test activation::tests::logistic ... ok
[INFO] [stdout] test activation::tests::sinusoid ... ok
[INFO] [stdout] test activation::tests::softplus ... ok
[INFO] [stdout] test activation::tests::softsign ... ok
[INFO] [stdout] test activation::tests::tanh ... ok
[INFO] [stdout] test mentor::samples::tests::missing_both_brackets ... ok
[INFO] [stdout] test mentor::samples::tests::missing_left_brackets ... ok
[INFO] [stdout] test mentor::samples::tests::missing_right_brackets ... ok
[INFO] [stdout] test neural_net::tests::equivalence ... ignored
[INFO] [stdout] test mentor::samples::tests::sample_and_vec_equal ... ok
[INFO] [stdout] test neural_net::tests::fully_connected_layer::construction_invariants ... ok
[INFO] [stdout] test neural_net::tests::fully_connected_layer::feed_forward ... ok
[INFO] [stdout] test neural_net::tests::fully_connected_layer::propagate_gradients ... ok
[INFO] [stdout] test neural_net::tests::fully_connected_layer::update_output_gradients ... ok
[INFO] [stdout] test neural_net::tests::fully_connected_layer::update_weights ... ok
[INFO] [stdout] test topology::tests::construction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration-a32fb721294637a9
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test train_constant ... ok
[INFO] [stdout] test train_and ... ok
[INFO] [stdout] test train_xor ... ok
[INFO] [stdout] test train_triple_add ... ok
[INFO] [stdout] test train_compare ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prophet
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/mentor/samples.rs - samples (line 81) ... ok
[INFO] [stdout] test src/mentor/samples.rs - samples (line 108) ... ok
[INFO] [stdout] test src/mentor/samples.rs - samples (line 89) ... ok
[INFO] [stdout] test src/lib.rs -  (line 63) ... ok
[INFO] [stdout] test src/lib.rs -  (line 19) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "cf78f17be13c0914de4bb9ee8b1a927b8280f6373aee84b0eec44198843a06a6"`
[INFO] running `"docker" "rm" "-f" "cf78f17be13c0914de4bb9ee8b1a927b8280f6373aee84b0eec44198843a06a6"`
[INFO] [stdout] cf78f17be13c0914de4bb9ee8b1a927b8280f6373aee84b0eec44198843a06a6