[INFO] fetching crate dancing-links 0.2.0...
[INFO] testing dancing-links-0.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate dancing-links 0.2.0 into /workspace/builds/worker-42/source
[INFO] validating manifest of crates.io crate dancing-links 0.2.0 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 dancing-links 0.2.0
[INFO] finished tweaking crates.io crate dancing-links 0.2.0
[INFO] tweaked toml for crates.io crate dancing-links 0.2.0 written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] [stdout] 5e90d6c3f9eddbbe6dc73ad2a40a41c2c154abfbc8b758f9e17850c6b030bcea
[INFO] running `Command { std: "docker" "start" "-a" "5e90d6c3f9eddbbe6dc73ad2a40a41c2c154abfbc8b758f9e17850c6b030bcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e90d6c3f9eddbbe6dc73ad2a40a41c2c154abfbc8b758f9e17850c6b030bcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e90d6c3f9eddbbe6dc73ad2a40a41c2c154abfbc8b758f9e17850c6b030bcea", kill_on_drop: false }`
[INFO] [stdout] 5e90d6c3f9eddbbe6dc73ad2a40a41c2c154abfbc8b758f9e17850c6b030bcea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] 40823e2e38e556c7916f31fe353a25203225314a0f7f0b2e5c7afd212693b8b2
[INFO] running `Command { std: "docker" "start" "-a" "40823e2e38e556c7916f31fe353a25203225314a0f7f0b2e5c7afd212693b8b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling dancing-links v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "40823e2e38e556c7916f31fe353a25203225314a0f7f0b2e5c7afd212693b8b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40823e2e38e556c7916f31fe353a25203225314a0f7f0b2e5c7afd212693b8b2", kill_on_drop: false }`
[INFO] [stdout] 40823e2e38e556c7916f31fe353a25203225314a0f7f0b2e5c7afd212693b8b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] [stdout] 2d33bd6f9921920ebc9d21f2fbb91b8d6641568a98fec41cb2aee50df2c09709
[INFO] running `Command { std: "docker" "start" "-a" "2d33bd6f9921920ebc9d21f2fbb91b8d6641568a98fec41cb2aee50df2c09709", kill_on_drop: false }`
[INFO] [stderr]    Compiling dancing-links v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "2d33bd6f9921920ebc9d21f2fbb91b8d6641568a98fec41cb2aee50df2c09709", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d33bd6f9921920ebc9d21f2fbb91b8d6641568a98fec41cb2aee50df2c09709", kill_on_drop: false }`
[INFO] [stdout] 2d33bd6f9921920ebc9d21f2fbb91b8d6641568a98fec41cb2aee50df2c09709
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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] [stdout] 45aa682d7e511d2fbc84fe439926d6c8ec7d58ed0e41a6a67d8ba414c58dc404
[INFO] running `Command { std: "docker" "start" "-a" "45aa682d7e511d2fbc84fe439926d6c8ec7d58ed0e41a6a67d8ba414c58dc404", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dancing_links-6ae6fd87eb25790d)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test grid::tests::create_a_small_grid ... ok
[INFO] [stdout] test grid::tests::cover_uncover_column ... ok
[INFO] [stdout] test grid::tests::create_weird_grids ... ok
[INFO] [stdout] test grid::tests::cover_uncover_all ... ok
[INFO] [stdout] test grid::tests::latin_square_cover_1 ... ok
[INFO] [stdout] test latin_square::tests::check_all_possibilities ... ok
[INFO] [stdout] test latin_square::tests::check_generated_possibilities_constraints ... ok
[INFO] [stdout] test latin_square::tests::solve_impossible_latin_square ... ok
[INFO] [stdout] test queens::tests::check_diagonal_indices ... ok
[INFO] [stdout] test latin_square::tests::solve_small_latin_square ... ok
[INFO] [stdout] test latin_square::tests::solve_multi_solution_latin_square ... ok
[INFO] [stdout] test util::tests::latin_square_test_1 ... ok
[INFO] [stdout] test queens::tests::check_tiny_boards ... ok
[INFO] [stdout] test util::tests::three_combo ... ok
[INFO] [stdout] test util::tests::latin_square_test_3 ... ok
[INFO] [stdout] test sudoku::tests::check_generated_possibilities_constraints ... ok
[INFO] [stdout] test queens::tests::check_small_board ... ok
[INFO] [stdout] test sudoku::tests::solve_small_sudoku ... ok
[INFO] [stdout] test queens::tests::count_medium_board ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dancing-links
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45aa682d7e511d2fbc84fe439926d6c8ec7d58ed0e41a6a67d8ba414c58dc404", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45aa682d7e511d2fbc84fe439926d6c8ec7d58ed0e41a6a67d8ba414c58dc404", kill_on_drop: false }`
[INFO] [stdout] 45aa682d7e511d2fbc84fe439926d6c8ec7d58ed0e41a6a67d8ba414c58dc404
