[INFO] fetching crate minotaur 0.3.0...
[INFO] testing minotaur-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate minotaur 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate minotaur 0.3.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minotaur 0.3.0
[INFO] finished tweaking crates.io crate minotaur 0.3.0
[INFO] tweaked toml for crates.io crate minotaur 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de0816cf561784b76c30c23de9183888c466bd4c94c58a9e3c32f66d0f3c8a4f
[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" "de0816cf561784b76c30c23de9183888c466bd4c94c58a9e3c32f66d0f3c8a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de0816cf561784b76c30c23de9183888c466bd4c94c58a9e3c32f66d0f3c8a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de0816cf561784b76c30c23de9183888c466bd4c94c58a9e3c32f66d0f3c8a4f", kill_on_drop: false }`
[INFO] [stdout] de0816cf561784b76c30c23de9183888c466bd4c94c58a9e3c32f66d0f3c8a4f
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad6c26f2b3ba89a0f988847cdca770b473b775d59327db70f74e039ef3ba9cb9
[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" "ad6c26f2b3ba89a0f988847cdca770b473b775d59327db70f74e039ef3ba9cb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling image v0.21.3
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling minotaur v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.02s
[INFO] running `Command { std: "docker" "inspect" "ad6c26f2b3ba89a0f988847cdca770b473b775d59327db70f74e039ef3ba9cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad6c26f2b3ba89a0f988847cdca770b473b775d59327db70f74e039ef3ba9cb9", kill_on_drop: false }`
[INFO] [stdout] ad6c26f2b3ba89a0f988847cdca770b473b775d59327db70f74e039ef3ba9cb9
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] f1e05f7ea2be1130cdf30591c48a1de146f70058a889a33107a267a0f5521d8e
[INFO] running `Command { std: "docker" "start" "-a" "f1e05f7ea2be1130cdf30591c48a1de146f70058a889a33107a267a0f5521d8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling minotaur v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "f1e05f7ea2be1130cdf30591c48a1de146f70058a889a33107a267a0f5521d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1e05f7ea2be1130cdf30591c48a1de146f70058a889a33107a267a0f5521d8e", kill_on_drop: false }`
[INFO] [stdout] f1e05f7ea2be1130cdf30591c48a1de146f70058a889a33107a267a0f5521d8e
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3007b824c0f1c60a8256379b151623b860383ffab7a3af5d33a31060c0255b71
[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" "3007b824c0f1c60a8256379b151623b860383ffab7a3af5d33a31060c0255b71", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minotaur-e32ec84820f1431c
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_hunt_and_kill ... ok
[INFO] [stdout] test tests::test_recursive_backtracker ... ok
[INFO] [stdout] test tests::test_aldous_broder_all_mazes ... ok
[INFO] [stdout] test tests::test_binary_tree ... ok
[INFO] [stdout] test tests::test_sidewinder ... ok
[INFO] [stdout] test tests::test_wilsons_all_mazes ... ok
[INFO] [stdout] test tests::test_aldous_broder ... ok
[INFO] [stdout] test tests::test_wilsons ... test tests::test_wilsons has been running for over 60 seconds
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/minotaur-64ad8b9c71132ab2
[INFO] [stdout] test tests::test_wilsons ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests minotaur
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3007b824c0f1c60a8256379b151623b860383ffab7a3af5d33a31060c0255b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3007b824c0f1c60a8256379b151623b860383ffab7a3af5d33a31060c0255b71", kill_on_drop: false }`
[INFO] [stdout] 3007b824c0f1c60a8256379b151623b860383ffab7a3af5d33a31060c0255b71