[INFO] fetching crate maze_generator 2.0.0...
[INFO] testing maze_generator-2.0.0 against beta-2022-04-10 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 beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02d183ceb6a20f072c3cd10b3a964080e3a89ea19801fae8cb4856fa30b87183
[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" "02d183ceb6a20f072c3cd10b3a964080e3a89ea19801fae8cb4856fa30b87183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02d183ceb6a20f072c3cd10b3a964080e3a89ea19801fae8cb4856fa30b87183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02d183ceb6a20f072c3cd10b3a964080e3a89ea19801fae8cb4856fa30b87183", kill_on_drop: false }`
[INFO] [stdout] 02d183ceb6a20f072c3cd10b3a964080e3a89ea19801fae8cb4856fa30b87183
[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" "+beta-2022-04-10" "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] 9d163f25612ed65bf357202ded4227985212750d105222eca25d48290e8e4920
[INFO] running `Command { std: "docker" "start" "-a" "9d163f25612ed65bf357202ded4227985212750d105222eca25d48290e8e4920", 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 anyhow v1.0.56
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[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 31.79s
[INFO] running `Command { std: "docker" "inspect" "9d163f25612ed65bf357202ded4227985212750d105222eca25d48290e8e4920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d163f25612ed65bf357202ded4227985212750d105222eca25d48290e8e4920", kill_on_drop: false }`
[INFO] [stdout] 9d163f25612ed65bf357202ded4227985212750d105222eca25d48290e8e4920
[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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d942b17fbff260f301eb62d9b61edf1e1b5e9ac364f2371aeb52300cea05f83
[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" "8d942b17fbff260f301eb62d9b61edf1e1b5e9ac364f2371aeb52300cea05f83", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[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 32.71s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/maze_generator-08de761572fd26e8)
[INFO] running `Command { std: "docker" "inspect" "8d942b17fbff260f301eb62d9b61edf1e1b5e9ac364f2371aeb52300cea05f83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d942b17fbff260f301eb62d9b61edf1e1b5e9ac364f2371aeb52300cea05f83", kill_on_drop: false }`
[INFO] [stdout] 8d942b17fbff260f301eb62d9b61edf1e1b5e9ac364f2371aeb52300cea05f83
[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" "+beta-2022-04-10" "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] 191676be8ae947644b965af6eccb205083f83bfddf463351eb88bc7d200e1282
[INFO] running `Command { std: "docker" "start" "-a" "191676be8ae947644b965af6eccb205083f83bfddf463351eb88bc7d200e1282", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/maze_generator-08de761572fd26e8)
[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 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_all_coordinates_have_fields 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 recursive_backtracking::test::test_all_coordinates_have_fields ... ok
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "191676be8ae947644b965af6eccb205083f83bfddf463351eb88bc7d200e1282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "191676be8ae947644b965af6eccb205083f83bfddf463351eb88bc7d200e1282", kill_on_drop: false }`
[INFO] [stdout] 191676be8ae947644b965af6eccb205083f83bfddf463351eb88bc7d200e1282