[INFO] fetching crate maze_generator 2.0.0...
[INFO] testing maze_generator-2.0.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate maze_generator 2.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate maze_generator 2.0.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maze_generator 2.0.0
[INFO] finished tweaking crates.io crate maze_generator 2.0.0
[INFO] tweaked toml for crates.io crate maze_generator 2.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate maze_generator 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] f9328023e6ad8fa1b8f6a9b08411a8a0812336ff89512bfd892e29795e758388
[INFO] running `Command { std: "docker" "start" "-a" "f9328023e6ad8fa1b8f6a9b08411a8a0812336ff89512bfd892e29795e758388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9328023e6ad8fa1b8f6a9b08411a8a0812336ff89512bfd892e29795e758388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9328023e6ad8fa1b8f6a9b08411a8a0812336ff89512bfd892e29795e758388", kill_on_drop: false }`
[INFO] [stdout] f9328023e6ad8fa1b8f6a9b08411a8a0812336ff89512bfd892e29795e758388
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 911b22052b7985b6cf545f4facf8b8d4e11dc5b41ecb82a2183686d6b95a31fd
[INFO] running `Command { std: "docker" "start" "-a" "911b22052b7985b6cf545f4facf8b8d4e11dc5b41ecb82a2183686d6b95a31fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling maze_generator v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.28s
[INFO] running `Command { std: "docker" "inspect" "911b22052b7985b6cf545f4facf8b8d4e11dc5b41ecb82a2183686d6b95a31fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "911b22052b7985b6cf545f4facf8b8d4e11dc5b41ecb82a2183686d6b95a31fd", kill_on_drop: false }`
[INFO] [stdout] 911b22052b7985b6cf545f4facf8b8d4e11dc5b41ecb82a2183686d6b95a31fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55b50a9c14b4d31d351cb0a2b6c7731933f811589336af9c2d0237bde9da1425
[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" "55b50a9c14b4d31d351cb0a2b6c7731933f811589336af9c2d0237bde9da1425", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]    Compiling clap v3.1.6
[INFO] [stderr]    Compiling maze_generator v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.48s
[INFO] running `Command { std: "docker" "inspect" "55b50a9c14b4d31d351cb0a2b6c7731933f811589336af9c2d0237bde9da1425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55b50a9c14b4d31d351cb0a2b6c7731933f811589336af9c2d0237bde9da1425", kill_on_drop: false }`
[INFO] [stdout] 55b50a9c14b4d31d351cb0a2b6c7731933f811589336af9c2d0237bde9da1425
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] eeae12c701cc0a55eb4676e1ba30813ddb96fecbb022c1e6ccedbe4b3f026fd4
[INFO] running `Command { std: "docker" "start" "-a" "eeae12c701cc0a55eb4676e1ba30813ddb96fecbb022c1e6ccedbe4b3f026fd4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maze_generator-13655c6a2979c3fc)
[INFO] [stdout] running 16 tests
[INFO] [stdout] test recursive_backtracking::test::test_all_fields_connected ... ok
[INFO] [stdout] test recursive_backtracking::test::test_route_from_start_to_goal_exists ... ok
[INFO] [stdout] test recursive_backtracking::test::test_all_coordinates_have_fields ... ok
[INFO] [stdout] test ellers_algorithm::test::test_all_coordinates_have_fields has been running for over 60 seconds
[INFO] [stdout] test ellers_algorithm::test::test_all_fields_connected has been running for over 60 seconds
[INFO] [stdout] test ellers_algorithm::test::test_generation_is_deterministic has been running for over 60 seconds
[INFO] [stdout] test ellers_algorithm::test::test_route_from_start_to_goal_exists has been running for over 60 seconds
[INFO] [stdout] test growing_tree::test::test_all_coordinates_have_fields has been running for over 60 seconds
[INFO] [stdout] test growing_tree::test::test_all_fields_connected has been running for over 60 seconds
[INFO] [stdout] test growing_tree::test::test_generation_is_deterministic has been running for over 60 seconds
[INFO] [stdout] test growing_tree::test::test_route_from_start_to_goal_exists has been running for over 60 seconds
[INFO] [stdout] test prims_algorithm::test::test_all_coordinates_have_fields has been running for over 60 seconds
[INFO] [stdout] test prims_algorithm::test::test_all_fields_connected has been running for over 60 seconds
[INFO] [stdout] test prims_algorithm::test::test_generation_is_deterministic has been running for over 60 seconds
[INFO] [stdout] test prims_algorithm::test::test_route_from_start_to_goal_exists has been running for over 60 seconds
[INFO] [stdout] test recursive_backtracking::test::test_generation_is_deterministic has been running for over 60 seconds
[INFO] [stdout] test ellers_algorithm::test::test_all_coordinates_have_fields ... ok
[INFO] [stdout] test ellers_algorithm::test::test_all_fields_connected ... ok
[INFO] [stdout] test ellers_algorithm::test::test_route_from_start_to_goal_exists ... ok
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "eeae12c701cc0a55eb4676e1ba30813ddb96fecbb022c1e6ccedbe4b3f026fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeae12c701cc0a55eb4676e1ba30813ddb96fecbb022c1e6ccedbe4b3f026fd4", kill_on_drop: false }`
[INFO] [stdout] eeae12c701cc0a55eb4676e1ba30813ddb96fecbb022c1e6ccedbe4b3f026fd4