[INFO] fetching crate wordfeud-solver 0.3.1...
[INFO] testing wordfeud-solver-0.3.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate wordfeud-solver 0.3.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate wordfeud-solver 0.3.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wordfeud-solver 0.3.1
[INFO] finished tweaking crates.io crate wordfeud-solver 0.3.1
[INFO] tweaked toml for crates.io crate wordfeud-solver 0.3.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate wordfeud-solver 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded multiset v0.0.5
[INFO] [stderr]   Downloaded anyhow v1.0.34
[INFO] [stderr]   Downloaded bitintr v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", 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] dc44fed73614b5b47e570d17a113b02e2838b450eaf04843f2cd3a5da7a0312a
[INFO] running `Command { std: "docker" "start" "-a" "dc44fed73614b5b47e570d17a113b02e2838b450eaf04843f2cd3a5da7a0312a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc44fed73614b5b47e570d17a113b02e2838b450eaf04843f2cd3a5da7a0312a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc44fed73614b5b47e570d17a113b02e2838b450eaf04843f2cd3a5da7a0312a", kill_on_drop: false }`
[INFO] [stdout] dc44fed73614b5b47e570d17a113b02e2838b450eaf04843f2cd3a5da7a0312a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ed19c2cde708c64f3eed9b9f1339040048b34d3dc7f2ad7429b93ce48cc726b
[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" "0ed19c2cde708c64f3eed9b9f1339040048b34d3dc7f2ad7429b93ce48cc726b", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling bitintr v0.3.0
[INFO] [stderr]    Compiling multiset v0.0.5
[INFO] [stderr]    Compiling tinyvec v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling wordfeud-solver v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.34s
[INFO] running `Command { std: "docker" "inspect" "0ed19c2cde708c64f3eed9b9f1339040048b34d3dc7f2ad7429b93ce48cc726b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ed19c2cde708c64f3eed9b9f1339040048b34d3dc7f2ad7429b93ce48cc726b", kill_on_drop: false }`
[INFO] [stdout] 0ed19c2cde708c64f3eed9b9f1339040048b34d3dc7f2ad7429b93ce48cc726b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", 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] 4feba4d89b10d252c9b78b64ae66d61cf3aeb6af1de6c7f5b1e9e928813afbd8
[INFO] running `Command { std: "docker" "start" "-a" "4feba4d89b10d252c9b78b64ae66d61cf3aeb6af1de6c7f5b1e9e928813afbd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.4
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling wordfeud-solver v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 23.00s
[INFO] running `Command { std: "docker" "inspect" "4feba4d89b10d252c9b78b64ae66d61cf3aeb6af1de6c7f5b1e9e928813afbd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4feba4d89b10d252c9b78b64ae66d61cf3aeb6af1de6c7f5b1e9e928813afbd8", kill_on_drop: false }`
[INFO] [stdout] 4feba4d89b10d252c9b78b64ae66d61cf3aeb6af1de6c7f5b1e9e928813afbd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] 9a8892c5e4f6ffd0533b9bc8a3a04e0cf00579dac016954c63ebfff55975108f
[INFO] running `Command { std: "docker" "start" "-a" "9a8892c5e4f6ffd0533b9bc8a3a04e0cf00579dac016954c63ebfff55975108f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wordfeud_solver-2b326b40245427ab)
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test ai::tests::test_find_best_score ... ignored
[INFO] [stdout] test board::tests::test_sample_scores ... ignored
[INFO] [stdout] test labelset::tests::test_count_ones ... ok
[INFO] [stdout] test labelset::tests::test_index ... ok
[INFO] [stdout] test board::tests::test_bingo ... ok
[INFO] [stdout] test board::tests::test_surrounding_words ... ok
[INFO] [stdout] test grid::tests::test_grid_from_array ... ok
[INFO] [stdout] test labelset::tests::test_labelset ... ok
[INFO] [stdout] test labelset::tests::test_into ... ok
[INFO] [stdout] test labelset::tests::test_labelset_iterator ... ok
[INFO] [stdout] test labelset::tests::test_zero_highbits ... ok
[INFO] [stdout] test board::tests::test_calc_word_points ... ok
[INFO] [stdout] test tilebag::tests::test_bag ... ok
[INFO] [stdout] test board::tests::test_main ... ok
[INFO] [stdout] test board::tests::test_state ... ok
[INFO] [stdout] test tiles::codec::tests::test_encode ... ok
[INFO] [stdout] test ai::tests::test_random_sample ... ok
[INFO] [stdout] test tiles::codec::tests::test_tokenize ... ok
[INFO] [stdout] test tiles::items::tests::test_iter ... ok
[INFO] [stdout] test tiles::items::tests::test_letters ... ok
[INFO] [stdout] test wordlist::matches::test::test_get_legal_characters ... ok
[INFO] [stdout] test tiles::items::tests::test_row ... ok
[INFO] [stdout] test tilesets::tests::test_tileset ... ok
[INFO] [stdout] test tiles::items::tests::test_word ... ok
[INFO] [stdout] test tiles::cell::tests::test_to_letter ... ok
[INFO] [stdout] test tilesets::tests::test_codec ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_1 ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_2 ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_3 ... ok
[INFO] [stdout] test wordlist::test::test_is_word ... ok
[INFO] [stdout] test wordlist::test::test_range ... ok
[INFO] [stdout] test ai::tests::test_tiles ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_4 ... ok
[INFO] [stdout] test wordlist::test::test_terminal ... ok
[INFO] [stdout] test wordlist::matches::test::test_words ... ok
[INFO] [stdout] test wordlist::trievec::tests::test_trie_vec ... ok
[INFO] [stdout] test board::tests::test_calc_all_word_scores ... ok
[INFO] [stdout] test board::tests::test_board ... ok
[INFO] [stdout] test ai::tests::test_remaining_letters ... ok
[INFO] [stdout] test board::tests::test_words ... ok
[INFO] [stdout] test board::tests::test_tile_placement_error - should panic ... ok
[INFO] [stdout] test tiles::codec::tests::test_encode_error - should panic ... ok
[INFO] [stderr]    Doc-tests wordfeud-solver
[INFO] [stdout] test board::tests::test_tile_replace_error - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 41 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/board.rs - board::Board::with_wordlist_from_words (line 144) - compile ... 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 wordfeud_solver --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-150669f0699289a2.rlib --extern bitintr=/opt/rustwide/target/debug/deps/libbitintr-d6a9b1cc1d479475.rlib --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-f51de6059afc4a63.rlib --extern multiset=/opt/rustwide/target/debug/deps/libmultiset-e3785aa9bbc926a5.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-a0a74235a916617b.rlib --extern rayon=/opt/rustwide/target/debug/deps/librayon-697912c8124713e6.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-5a18639a4ea084c3.rlib --extern tinyvec=/opt/rustwide/target/debug/deps/libtinyvec-641472a05e084350.rlib --extern wordfeud_solver=/opt/rustwide/target/debug/deps/libwordfeud_solver-362f24a500d67f0e.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="rayon"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "9a8892c5e4f6ffd0533b9bc8a3a04e0cf00579dac016954c63ebfff55975108f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a8892c5e4f6ffd0533b9bc8a3a04e0cf00579dac016954c63ebfff55975108f", kill_on_drop: false }`
[INFO] [stdout] 9a8892c5e4f6ffd0533b9bc8a3a04e0cf00579dac016954c63ebfff55975108f
