[INFO] fetching crate thread-tree 0.3.3...
[INFO] testing thread-tree-0.3.3 against 1.59.0 for beta-1.60-1
[INFO] extracting crate thread-tree 0.3.3 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate thread-tree 0.3.3 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate thread-tree 0.3.3
[INFO] finished tweaking crates.io crate thread-tree 0.3.3
[INFO] tweaked toml for crates.io crate thread-tree 0.3.3 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b54071ea35f580e6ac18f37960771749bf3a12fe7366c3b0f8a26d426aeea819
[INFO] running `Command { std: "docker" "start" "-a" "b54071ea35f580e6ac18f37960771749bf3a12fe7366c3b0f8a26d426aeea819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b54071ea35f580e6ac18f37960771749bf3a12fe7366c3b0f8a26d426aeea819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54071ea35f580e6ac18f37960771749bf3a12fe7366c3b0f8a26d426aeea819", kill_on_drop: false }`
[INFO] [stdout] b54071ea35f580e6ac18f37960771749bf3a12fe7366c3b0f8a26d426aeea819
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6959f86d10dadbd63b84945257ea2013934bc4ed318c0cfede2fc389d2858979
[INFO] running `Command { std: "docker" "start" "-a" "6959f86d10dadbd63b84945257ea2013934bc4ed318c0cfede2fc389d2858979", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling thread-tree v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.83s
[INFO] running `Command { std: "docker" "inspect" "6959f86d10dadbd63b84945257ea2013934bc4ed318c0cfede2fc389d2858979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6959f86d10dadbd63b84945257ea2013934bc4ed318c0cfede2fc389d2858979", kill_on_drop: false }`
[INFO] [stdout] 6959f86d10dadbd63b84945257ea2013934bc4ed318c0cfede2fc389d2858979
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0e209c27047a56ade88f49ebb6ad4a97611d96cf317d8cc5dcbbc23261cc8e
[INFO] running `Command { std: "docker" "start" "-a" "bc0e209c27047a56ade88f49ebb6ad4a97611d96cf317d8cc5dcbbc23261cc8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling thread-tree v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "bc0e209c27047a56ade88f49ebb6ad4a97611d96cf317d8cc5dcbbc23261cc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0e209c27047a56ade88f49ebb6ad4a97611d96cf317d8cc5dcbbc23261cc8e", kill_on_drop: false }`
[INFO] [stdout] bc0e209c27047a56ade88f49ebb6ad4a97611d96cf317d8cc5dcbbc23261cc8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 23b639eda145e4d803e5739d473e140715f7ea5cc82b1c9afe0870a6b39f22bf
[INFO] running `Command { std: "docker" "start" "-a" "23b639eda145e4d803e5739d473e140715f7ea5cc82b1c9afe0870a6b39f22bf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/thread_tree-32cf67a551723c9b)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test thread_tree_tests::new_level_1 ... ok
[INFO] [stdout] test thread_tree_tests::build_level_2 ... ok
[INFO] [stdout] test thread_tree_tests::stub ... ok
[INFO] [stdout] test thread_tree_tests::panic_a - should panic ... ok
[INFO] [stdout] test thread_tree_tests::panic_b - should panic ... ok
[INFO] [stdout] test thread_tree_tests::panic_both_bottom - should panic ... ok
[INFO] [stdout] test thread_tree_tests::panic_both_in_threads - should panic ... ok
[INFO] [stdout] test thread_tree_tests::on_panic_a_wait_for_b ... ok
[INFO] [stdout] test thread_tree_tests::deep_tree ... ok
[INFO] [stdout] test thread_tree_tests::overload_2_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests thread-tree
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ThreadTree::top (line 107) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "23b639eda145e4d803e5739d473e140715f7ea5cc82b1c9afe0870a6b39f22bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23b639eda145e4d803e5739d473e140715f7ea5cc82b1c9afe0870a6b39f22bf", kill_on_drop: false }`
[INFO] [stdout] 23b639eda145e4d803e5739d473e140715f7ea5cc82b1c9afe0870a6b39f22bf