[INFO] fetching crate prophet 0.4.2...
[INFO] testing prophet-0.4.2 against 1.59.0 for beta-1.60-1
[INFO] extracting crate prophet 0.4.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate prophet 0.4.2 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88abf89f9c536080f0bd6dc10fcb24a0c3073554c00a9eb489fa1ce04529b82b
[INFO] running `Command { std: "docker" "start" "-a" "88abf89f9c536080f0bd6dc10fcb24a0c3073554c00a9eb489fa1ce04529b82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88abf89f9c536080f0bd6dc10fcb24a0c3073554c00a9eb489fa1ce04529b82b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88abf89f9c536080f0bd6dc10fcb24a0c3073554c00a9eb489fa1ce04529b82b", kill_on_drop: false }`
[INFO] [stdout] 88abf89f9c536080f0bd6dc10fcb24a0c3073554c00a9eb489fa1ce04529b82b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a4809e260142cc97a72c9e17cf9bd39204c1fee25167a129e85b3d47065e37
[INFO] running `Command { std: "docker" "start" "-a" "d4a4809e260142cc97a72c9e17cf9bd39204c1fee25167a129e85b3d47065e37", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling ndarray v0.10.14
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[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 4.56s
[INFO] running `Command { std: "docker" "inspect" "d4a4809e260142cc97a72c9e17cf9bd39204c1fee25167a129e85b3d47065e37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a4809e260142cc97a72c9e17cf9bd39204c1fee25167a129e85b3d47065e37", kill_on_drop: false }`
[INFO] [stdout] d4a4809e260142cc97a72c9e17cf9bd39204c1fee25167a129e85b3d47065e37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e31a82105032b487323925c24d03a1bda7ecd3cd1cfb62c57f38849ae98d4bd0
[INFO] running `Command { std: "docker" "start" "-a" "e31a82105032b487323925c24d03a1bda7ecd3cd1cfb62c57f38849ae98d4bd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling prophet v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `to_owned` that must be used
[INFO] [stdout]    --> src/neural_net.rs:418:4
[INFO] [stdout]     |
[INFO] [stdout] 418 |             layer.calculate_output_gradients(expected.view()).to_owned();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: cloning is often expensive and is not expected to have side effects
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "e31a82105032b487323925c24d03a1bda7ecd3cd1cfb62c57f38849ae98d4bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31a82105032b487323925c24d03a1bda7ecd3cd1cfb62c57f38849ae98d4bd0", kill_on_drop: false }`
[INFO] [stdout] e31a82105032b487323925c24d03a1bda7ecd3cd1cfb62c57f38849ae98d4bd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 598ca164f63a383caa79b06f8713fb05d3daadec45e118fca7a0cdf6889ebe4c
[INFO] running `Command { std: "docker" "start" "-a" "598ca164f63a383caa79b06f8713fb05d3daadec45e118fca7a0cdf6889ebe4c", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `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] warning: `prophet` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prophet-a3bc532480631648)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test activation::tests::arctan ... ok
[INFO] [stdout] test activation::tests::binary_step ... ok
[INFO] [stdout] test activation::tests::bent_identity ... ok
[INFO] [stdout] test activation::tests::identity ... ok
[INFO] [stdout] test activation::tests::logistic ... ok
[INFO] [stdout] test activation::tests::gaussian ... ok
[INFO] [stdout] test activation::tests::relu ... 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 neural_net::tests::equivalence ... ignored
[INFO] [stdout] test mentor::samples::tests::missing_left_brackets ... ok
[INFO] [stdout] test mentor::samples::tests::missing_right_brackets ... ok
[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 topology::tests::construction ... ok
[INFO] [stdout] test neural_net::tests::fully_connected_layer::update_weights ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-308e61fdfe3e4a56)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test train_and ... ok
[INFO] [stdout] test train_constant ... ok
[INFO] [stdout] test train_triple_add ... ok
[INFO] [stdout] test train_compare ... ok
[INFO] [stdout] test train_xor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prophet
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/mentor/samples.rs - mentor::samples::samples (line 81) - compile ... ok
[INFO] [stdout] test src/mentor/samples.rs - mentor::samples::samples (line 108) - compile ... ok
[INFO] [stdout] test src/mentor/samples.rs - mentor::samples::samples (line 89) ... ok
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "598ca164f63a383caa79b06f8713fb05d3daadec45e118fca7a0cdf6889ebe4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598ca164f63a383caa79b06f8713fb05d3daadec45e118fca7a0cdf6889ebe4c", kill_on_drop: false }`
[INFO] [stdout] 598ca164f63a383caa79b06f8713fb05d3daadec45e118fca7a0cdf6889ebe4c