[INFO] fetching crate sparse-bin-mat 0.6.0...
[INFO] testing sparse-bin-mat-0.6.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate sparse-bin-mat 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sparse-bin-mat 0.6.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sparse-bin-mat 0.6.0
[INFO] finished tweaking crates.io crate sparse-bin-mat 0.6.0
[INFO] tweaked toml for crates.io crate sparse-bin-mat 0.6.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded is_sorted v0.1.1
[INFO] [stderr]   Downloaded serde_test v1.0.126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60835f19d68da605ce208af571d3d5f8ff51fc0600eb9c7e08c0577069a43250
[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" "60835f19d68da605ce208af571d3d5f8ff51fc0600eb9c7e08c0577069a43250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60835f19d68da605ce208af571d3d5f8ff51fc0600eb9c7e08c0577069a43250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60835f19d68da605ce208af571d3d5f8ff51fc0600eb9c7e08c0577069a43250", kill_on_drop: false }`
[INFO] [stdout] 60835f19d68da605ce208af571d3d5f8ff51fc0600eb9c7e08c0577069a43250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a7bce69cac6f91837cb23ac98c89b3af137f4db7115e74089bc7ff17e42e737
[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" "8a7bce69cac6f91837cb23ac98c89b3af137f4db7115e74089bc7ff17e42e737", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling sparse-bin-mat v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.66s
[INFO] running `Command { std: "docker" "inspect" "8a7bce69cac6f91837cb23ac98c89b3af137f4db7115e74089bc7ff17e42e737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a7bce69cac6f91837cb23ac98c89b3af137f4db7115e74089bc7ff17e42e737", kill_on_drop: false }`
[INFO] [stdout] 8a7bce69cac6f91837cb23ac98c89b3af137f4db7115e74089bc7ff17e42e737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91b90c1bef0c9f80828e8e5c4a83cd222225011e695e5c5df7fa2936b5401db1
[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" "91b90c1bef0c9f80828e8e5c4a83cd222225011e695e5c5df7fa2936b5401db1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_test v1.0.126
[INFO] [stderr]    Compiling sparse-bin-mat v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.15s
[INFO] running `Command { std: "docker" "inspect" "91b90c1bef0c9f80828e8e5c4a83cd222225011e695e5c5df7fa2936b5401db1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91b90c1bef0c9f80828e8e5c4a83cd222225011e695e5c5df7fa2936b5401db1", kill_on_drop: false }`
[INFO] [stdout] 91b90c1bef0c9f80828e8e5c4a83cd222225011e695e5c5df7fa2936b5401db1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] b7950b5ae621cc25f7cfadb99a05cd158c60084cba9a8327dd14b883b380dec3
[INFO] running `Command { std: "docker" "start" "-a" "b7950b5ae621cc25f7cfadb99a05cd158c60084cba9a8327dd14b883b380dec3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sparse_bin_mat-280073dd723b7d2f)
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_equal_length_matrices ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_smaller_right_matrix ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_empty_matrix ... ok
[INFO] [stdout] test matrix::concat::test::vertical_concat_with_smaller_bottom_matrix ... ok
[INFO] [stdout] test matrix::inplace_operations::test::remove_one_at_end_of_row ... ok
[INFO] [stdout] test matrix::kronecker::test::right_kron_with_identity ... ok
[INFO] [stdout] test matrix::kronecker::test::left_kron_with_identity ... ok
[INFO] [stdout] test matrix::nullspace::test::normal_form ... ok
[INFO] [stdout] test matrix::non_trivial_elements::test::non_trivial_elements_of_small_matrix ... ok
[INFO] [stdout] test matrix::nullspace::test::column_permutation ... ok
[INFO] [stdout] test matrix::nullspace::test::permutation ... ok
[INFO] [stdout] test matrix::inplace_operations::test::insert_two_ones_in_middle_or_row ... ok
[INFO] [stdout] test matrix::inplace_operations::test::remove_one_at_start_of_row ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_from_empty_matrix ... ok
[INFO] [stdout] test matrix::rows::test::checks_iterator ... ok
[INFO] [stdout] test matrix::concat::test::vertical_concat_with_smaller_top_matrix ... ok
[INFO] [stdout] test matrix::ser_de::test::ser_de_2_by_5_matrix ... ok
[INFO] [stdout] test matrix::concat::test::vertical_concatwith_equal_length_matrices ... ok
[INFO] [stdout] test matrix::gauss_jordan::test::do_nothing_if_already_in_echelon_form ... ok
[INFO] [stdout] test matrix::rows::test::reverse_checks_iterator ... ok
[INFO] [stdout] test matrix::ser_de::test::de_unsorted_rows ... ok
[INFO] [stdout] test matrix::gauss_jordan::test::compute_the_good_echelon_form ... ok
[INFO] [stdout] test matrix::gauss_jordan::test::ranks ... ok
[INFO] [stdout] test matrix::ser_de::test::ser_de_empty_matrix ... ok
[INFO] [stdout] test matrix::inplace_operations::test::insert_one_at_end_of_row ... ok
[INFO] [stdout] test matrix::rows::test::bothway_checks_iterator ... ok
[INFO] [stdout] test matrix::rows::test::checks_iterator_for_empty_matrix ... ok
[INFO] [stdout] test matrix::transpose::test::transposition_of_general_matrix ... ok
[INFO] [stdout] test matrix::test::addition ... ok
[INFO] [stdout] test vector::test::addition ... ok
[INFO] [stdout] test matrix::test::multiplication_with_other_matrix ... ok
[INFO] [stdout] test matrix::nullspace::test::nullspace_of_rank_1_matrix ... ok
[INFO] [stdout] test matrix::transpose::test::transposition_of_empty_matrix ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_smaller_left_matrix ... ok
[INFO] [stdout] test matrix::inplace_operations::test::insert_one_at_start_of_row ... ok
[INFO] [stdout] test matrix::transpose::test::tranposition_with_some_empty_transposed_rows ... ok
[INFO] [stdout] test vector::test::ser_de ... ok
[INFO] [stdout] test matrix::inplace_operations::test::remove_two_ones_in_middle_or_row ... ok
[INFO] [stdout] test matrix::kronecker::test::kron_with_itself ... ok
[INFO] [stdout] test matrix::test::panics_on_construction_if_rows_are_out_of_bound - should panic ... ok
[INFO] [stderr]    Doc-tests sparse-bin-mat
[INFO] [stdout] test matrix::test::panics_on_addition_if_different_dimensions ... ok
[INFO] [stdout] test matrix::test::panics_on_matrix_multiplication_if_wrong_dimension ... ok
[INFO] [stdout] test vector::test::panics_on_addition_if_different_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 43 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 46 tests
[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 sparse_bin_mat --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern is_sorted=/opt/rustwide/target/debug/deps/libis_sorted-632e691338cc1818.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-02b10cb8cc5c6f52.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-af61c44e3bed9e8f.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-c8b94e0e88c796d5.rlib --extern serde_test=/opt/rustwide/target/debug/deps/libserde_test-d7fbaa51bcdc293f.rlib --extern sparse_bin_mat=/opt/rustwide/target/debug/deps/libsparse_bin_mat-6a8eea626c85e84b.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "b7950b5ae621cc25f7cfadb99a05cd158c60084cba9a8327dd14b883b380dec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7950b5ae621cc25f7cfadb99a05cd158c60084cba9a8327dd14b883b380dec3", kill_on_drop: false }`
[INFO] [stdout] b7950b5ae621cc25f7cfadb99a05cd158c60084cba9a8327dd14b883b380dec3