[INFO] fetching crate easy-ml 1.6.1...
[INFO] testing easy-ml-1.6.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate easy-ml 1.6.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate easy-ml 1.6.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate easy-ml 1.6.1
[INFO] finished tweaking crates.io crate easy-ml 1.6.1
[INFO] tweaked toml for crates.io crate easy-ml 1.6.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f2279829ed97083354d8c59bdcc1bd5938b063c8939855c25c4898989aa7753
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7f2279829ed97083354d8c59bdcc1bd5938b063c8939855c25c4898989aa7753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f2279829ed97083354d8c59bdcc1bd5938b063c8939855c25c4898989aa7753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f2279829ed97083354d8c59bdcc1bd5938b063c8939855c25c4898989aa7753", kill_on_drop: false }`
[INFO] [stdout] 7f2279829ed97083354d8c59bdcc1bd5938b063c8939855c25c4898989aa7753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2281bdf894ff9a0117f095c6f91f79cf930b8feeb27bf47bc7c7916fa622449a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2281bdf894ff9a0117f095c6f91f79cf930b8feeb27bf47bc7c7916fa622449a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling easy-ml v1.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "2281bdf894ff9a0117f095c6f91f79cf930b8feeb27bf47bc7c7916fa622449a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2281bdf894ff9a0117f095c6f91f79cf930b8feeb27bf47bc7c7916fa622449a", kill_on_drop: false }`
[INFO] [stdout] 2281bdf894ff9a0117f095c6f91f79cf930b8feeb27bf47bc7c7916fa622449a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f9d113adad7a0b7ef4c34164b34e991bfe5630930d7d173a3886111535e0e13
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f9d113adad7a0b7ef4c34164b34e991bfe5630930d7d173a3886111535e0e13", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling drawille v0.2.3
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.74
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling textplots v0.5.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling js-sys v0.3.51
[INFO] [stderr]    Compiling easy-ml v1.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 30.14s
[INFO] running `Command { std: "docker" "inspect" "8f9d113adad7a0b7ef4c34164b34e991bfe5630930d7d173a3886111535e0e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f9d113adad7a0b7ef4c34164b34e991bfe5630930d7d173a3886111535e0e13", kill_on_drop: false }`
[INFO] [stdout] 8f9d113adad7a0b7ef4c34164b34e991bfe5630930d7d173a3886111535e0e13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d27f05b26c7a4076f98247ff6a9855d8953b2ba00b9b3aa722e97816653875d2
[INFO] running `Command { std: "docker" "start" "-a" "d27f05b26c7a4076f98247ff6a9855d8953b2ba00b9b3aa722e97816653875d2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/easy_ml-7341750211d29cfd)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test matrices::test_send ... ok
[INFO] [stdout] test matrices::test_indexing ... ok
[INFO] [stdout] test matrices::errors::test_sync ... ok
[INFO] [stdout] test matrices::errors::test_send ... ok
[INFO] [stdout] test differentiation::test_send ... ok
[INFO] [stdout] test matrices::test_sync ... ok
[INFO] [stdout] test linear_algebra::test_permutations ... ok
[INFO] [stdout] test differentiation::test_sync ... ok
[INFO] [stdout] test differentiation::test_record_derivatives_when_no_history - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/bayesian_regression.rs (/opt/rustwide/target/debug/deps/bayesian_regression-6e07990c86c9f2c7)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/differentiation.rs (/opt/rustwide/target/debug/deps/differentiation-969fffbc4d307105)
[INFO] [stdout] test tests::test_bayesian_regression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test forward_tests::test_constant_lifting ... ok
[INFO] [stdout] test forward_tests::test_numeric_substitution ... ok
[INFO] [stdout] test forward_tests::test_four_x_cubed ... ok
[INFO] [stdout] test forward_tests::test_pow_equivalents_dx ... ok
[INFO] [stdout] test forward_tests::test_ln_gradient_descent ... ok
[INFO] [stdout] test forward_tests::test_three_x_squared ... ok
[INFO] [stdout] test forward_tests::test_sqrt ... ok
[INFO] [stdout] test reverse_tests::test_adding_and_multiplying_constants ... ok
[INFO] [stdout] test reverse_tests::test_constant_lifting_and_reusing_list ... ok
[INFO] [stdout] test reverse_tests::test_division_denominator ... ok
[INFO] [stdout] test reverse_tests::test_four_x_cubed ... ok
[INFO] [stdout] test reverse_tests::test_ln_gradient_descent ... ok
[INFO] [stdout] test reverse_tests::test_numeric_substitution ... ok
[INFO] [stdout] test reverse_tests::test_pow_equivalents_dx ... ok
[INFO] [stdout] test reverse_tests::test_sqrt ... ok
[INFO] [stdout] test reverse_tests::test_sum ... ok
[INFO] [stdout] test reverse_tests::test_x_cubed ... ok
[INFO] [stdout] test reverse_tests::test_exp_gradient_descent ... ok
[INFO] [stdout] test reverse_tests::test_pow_equivalents_dy ... ok
[INFO] [stdout] test forward_tests::test_pow_equivalents_dy ... ok
[INFO] [stdout] test reverse_tests::test_division_numerator ... ok
[INFO] [stdout] test forward_tests::test_exp_gradient_descent ... ok
[INFO] [stdout] test forward_tests::test_adding ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/differentiation_nn.rs (/opt/rustwide/target/debug/deps/differentiation_nn-4442a1206758d8ab)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test neural_net_tests::test_gradient_descent ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/distributions.rs (/opt/rustwide/target/debug/deps/distributions-c4244f4e89f96a42)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_normal_distribution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/linear_algebra.rs (/opt/rustwide/target/debug/deps/linear_algebra-8509f0ac59493d72)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test tests::check_determinant_2_by_2 ... ok
[INFO] [stdout] test tests::inverse_2_by_2_not_inversible ... ok
[INFO] [stdout] test tests::inverse_1_by_1 ... ok
[INFO] [stdout] test tests::check_determinant_3_by_3 ... ok
[INFO] [stdout] test tests::test_mean ... ok
[INFO] [stdout] test tests::test_softmax_mixed ... ok
[INFO] [stdout] test tests::test_cholesky_decomposition_3_by_3 ... ok
[INFO] [stdout] test tests::test_softmax_empty_list ... ok
[INFO] [stdout] test tests::inverse_2_by_2 ... ok
[INFO] [stdout] test tests::test_softmax_negative ... ok
[INFO] [stdout] test tests::test_softmax_positive ... ok
[INFO] [stdout] test tests::test_variance ... ok
[INFO] [stdout] test tests::test_qr_decomposition_3_by_3 ... ok
[INFO] [stderr]      Running tests/matrices.rs (/opt/rustwide/target/debug/deps/matrices-0e034562756895d1)
[INFO] [stdout] test tests::test_cholesky_decomposition_4_by_4 ... ok
[INFO] [stdout] test tests::test_covariance ... ok
[INFO] [stdout] test tests::test_qr_decomposition_fuzzing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test tests::check_dimensionality ... ok
[INFO] [stdout] test tests::check_row_major_iterator ... ok
[INFO] [stdout] test tests::check_growing_matrix ... ok
[INFO] [stdout] test tests::check_matrix_addition ... ok
[INFO] [stdout] test tests::check_shrinking_matrix ... ok
[INFO] [stdout] test tests::check_row_major_reference_iterator ... ok
[INFO] [stdout] test tests::check_matrix_subtraction ... ok
[INFO] [stdout] test tests::check_mapping ... ok
[INFO] [stdout] test tests::check_dimensionality_matrix ... ok
[INFO] [stdout] test tests::check_empty_dimensionality ... ok
[INFO] [stdout] test tests::check_resizing_matrix ... ok
[INFO] [stdout] test tests::check_matrix_multiplication ... ok
[INFO] [stdout] test tests::check_matrix_negation ... ok
[INFO] [stdout] test tests::check_iterators ... ok
[INFO] [stdout] test tests::check_column_major_iterator ... ok
[INFO] [stdout] test tests::check_matrix_addition_wrong_size - should panic ... ok
[INFO] [stdout] test tests::check_insert_row_with_too_few_elements - should panic ... ok
[INFO] [stdout] test tests::check_insert_column_with_too_few_elements - should panic ... ok
[INFO] [stdout] test tests::check_matrix_multiplication_wrong_size - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/regression.rs (/opt/rustwide/target/debug/deps/regression-f0658f6ebbd0b297)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/slices.rs (/opt/rustwide/target/debug/deps/slices-3215c237f382994c)
[INFO] [stdout] test tests::linear_regression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_slicing_column ... ok
[INFO] [stdout] test tests::test_slicing_row_column ... ok
[INFO] [stdout] test tests::test_slicing_column_range ... ok
[INFO] [stdout] test tests::test_slicing_row_column_negated ... ok
[INFO] [stdout] test tests::test_slicing_row_range ... ok
[INFO] [stdout] test tests::test_slicing_row ... ok
[INFO] [stdout] test tests::test_slicing_row_column_or ... ok
[INFO] [stdout] test tests::test_slicing_empty_slice_construction - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests easy-ml
[INFO] [stdout] 
[INFO] [stdout] running 63 tests
[INFO] [stdout] test src/differentiation.rs - differentiation::Record::variable (line 614) - compile fail ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name easy_ml --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern easy_ml=/opt/rustwide/target/debug/deps/libeasy_ml-2ed462ab8075c463.rlib --extern js_sys=/opt/rustwide/target/debug/deps/libjs_sys-7d23036f6b09af72.rlib --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-9f8e718d3b7ca068.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-9d7143d17b8cdd9b.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-c145a66075dfdeb0.rlib --extern rand_chacha=/opt/rustwide/target/debug/deps/librand_chacha-b48778b27061eb91.rlib --extern textplots=/opt/rustwide/target/debug/deps/libtextplots-4090e81332553789.rlib -C embed-bitcode=no --cfg 'feature="default"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "d27f05b26c7a4076f98247ff6a9855d8953b2ba00b9b3aa722e97816653875d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d27f05b26c7a4076f98247ff6a9855d8953b2ba00b9b3aa722e97816653875d2", kill_on_drop: false }`
[INFO] [stdout] d27f05b26c7a4076f98247ff6a9855d8953b2ba00b9b3aa722e97816653875d2