[INFO] fetching crate sparse-bin-mat 0.6.0...
[INFO] testing sparse-bin-mat-0.6.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate sparse-bin-mat 0.6.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sparse-bin-mat 0.6.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b53a24190fea9e0cb61980f20548fe7c2c994d6ddf7dd4499b56bac46db44095
[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" "b53a24190fea9e0cb61980f20548fe7c2c994d6ddf7dd4499b56bac46db44095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b53a24190fea9e0cb61980f20548fe7c2c994d6ddf7dd4499b56bac46db44095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b53a24190fea9e0cb61980f20548fe7c2c994d6ddf7dd4499b56bac46db44095", kill_on_drop: false }`
[INFO] [stdout] b53a24190fea9e0cb61980f20548fe7c2c994d6ddf7dd4499b56bac46db44095
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25d533f2133e6360c6e697ab792c9ad2d57d1a635edf66eaf2b28937e0a89b11
[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" "25d533f2133e6360c6e697ab792c9ad2d57d1a635edf66eaf2b28937e0a89b11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling is_sorted v0.1.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling sparse-bin-mat v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.29s
[INFO] running `Command { std: "docker" "inspect" "25d533f2133e6360c6e697ab792c9ad2d57d1a635edf66eaf2b28937e0a89b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25d533f2133e6360c6e697ab792c9ad2d57d1a635edf66eaf2b28937e0a89b11", kill_on_drop: false }`
[INFO] [stdout] 25d533f2133e6360c6e697ab792c9ad2d57d1a635edf66eaf2b28937e0a89b11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9582dd45ac405c62e6b2e6f502ab671b011de92cdcffed8c71a2b772775eeb4f
[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" "9582dd45ac405c62e6b2e6f502ab671b011de92cdcffed8c71a2b772775eeb4f", 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 4.04s
[INFO] running `Command { std: "docker" "inspect" "9582dd45ac405c62e6b2e6f502ab671b011de92cdcffed8c71a2b772775eeb4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9582dd45ac405c62e6b2e6f502ab671b011de92cdcffed8c71a2b772775eeb4f", kill_on_drop: false }`
[INFO] [stdout] 9582dd45ac405c62e6b2e6f502ab671b011de92cdcffed8c71a2b772775eeb4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 846d89b0b14ca87ab114c28e97a99bef3f42040b76027a68c959aed5868bbc76
[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" "846d89b0b14ca87ab114c28e97a99bef3f42040b76027a68c959aed5868bbc76", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sparse_bin_mat-1c486874abd5c287)
[INFO] [stdout] running 43 tests
[INFO] [stdout] test matrix::concat::test::horizontal_concat_from_empty_matrix ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_equal_length_matrices ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_smaller_left_matrix ... ok
[INFO] [stdout] test matrix::concat::test::vertical_concat_with_smaller_bottom_matrix ... ok
[INFO] [stdout] test matrix::concat::test::vertical_concat_with_smaller_top_matrix ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_empty_matrix ... ok
[INFO] [stdout] test matrix::concat::test::horizontal_concat_with_smaller_right_matrix ... ok
[INFO] [stdout] test matrix::gauss_jordan::test::compute_the_good_echelon_form ... 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::inplace_operations::test::insert_one_at_end_of_row ... ok
[INFO] [stdout] test matrix::gauss_jordan::test::ranks ... ok
[INFO] [stdout] test matrix::rows::test::checks_iterator_for_empty_matrix ... ok
[INFO] [stdout] test matrix::rows::test::checks_iterator ... ok
[INFO] [stdout] test matrix::rows::test::bothway_checks_iterator ... ok
[INFO] [stdout] test matrix::inplace_operations::test::remove_one_at_end_of_row ... ok
[INFO] [stdout] test matrix::nullspace::test::permutation ... 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::test::addition ... ok
[INFO] [stdout] test matrix::inplace_operations::test::remove_one_at_start_of_row ... ok
[INFO] [stdout] test matrix::test::multiplication_with_other_matrix ... ok
[INFO] [stdout] test matrix::transpose::test::tranposition_with_some_empty_transposed_rows ... ok
[INFO] [stdout] test matrix::ser_de::test::ser_de_empty_matrix ... ok
[INFO] [stdout] test matrix::kronecker::test::kron_with_itself ... ok
[INFO] [stdout] test matrix::kronecker::test::left_kron_with_identity ... ok
[INFO] [stdout] test matrix::inplace_operations::test::insert_one_at_start_of_row ... ok
[INFO] [stdout] test matrix::inplace_operations::test::remove_two_ones_in_middle_or_row ... ok
[INFO] [stdout] test matrix::inplace_operations::test::insert_two_ones_in_middle_or_row ... ok
[INFO] [stdout] test matrix::ser_de::test::ser_de_2_by_5_matrix ... ok
[INFO] [stdout] test matrix::kronecker::test::right_kron_with_identity ... ok
[INFO] [stdout] test matrix::non_trivial_elements::test::non_trivial_elements_of_small_matrix ... ok
[INFO] [stdout] test matrix::nullspace::test::nullspace_of_rank_1_matrix ... ok
[INFO] [stdout] test matrix::nullspace::test::column_permutation ... ok
[INFO] [stdout] test matrix::nullspace::test::normal_form ... ok
[INFO] [stdout] test matrix::transpose::test::transposition_of_general_matrix ... ok
[INFO] [stdout] test matrix::transpose::test::transposition_of_empty_matrix ... ok
[INFO] [stdout] test vector::test::addition ... ok
[INFO] [stdout] test vector::test::ser_de ... ok
[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 matrix::test::panics_on_construction_if_rows_are_out_of_bound ... 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] [stderr]    Doc-tests sparse-bin-mat
[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-2284b68bec6dd74e.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-0f948af4d3eacce0.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-42134fc27526dbd0.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6527dc04930e14b2.rlib --extern serde_test=/opt/rustwide/target/debug/deps/libserde_test-8ffc4fdc8723639e.rlib --extern sparse_bin_mat=/opt/rustwide/target/debug/deps/libsparse_bin_mat-8b2dbcaa3396bd58.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "846d89b0b14ca87ab114c28e97a99bef3f42040b76027a68c959aed5868bbc76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "846d89b0b14ca87ab114c28e97a99bef3f42040b76027a68c959aed5868bbc76", kill_on_drop: false }`
[INFO] [stdout] 846d89b0b14ca87ab114c28e97a99bef3f42040b76027a68c959aed5868bbc76