[INFO] fetching crate flattree 2.0.0...
[INFO] testing flattree-2.0.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate flattree 2.0.0 into /workspace/builds/worker-116/source
[INFO] validating manifest of crates.io crate flattree 2.0.0 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 flattree 2.0.0
[INFO] finished tweaking crates.io crate flattree 2.0.0
[INFO] tweaked toml for crates.io crate flattree 2.0.0 written to /workspace/builds/worker-116/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] 6ff1996ec67390a97db3a16f4e6b6ce4cdc7befac91c86b08089daa80ce4a2e2
[INFO] running `Command { std: "docker" "start" "-a" "6ff1996ec67390a97db3a16f4e6b6ce4cdc7befac91c86b08089daa80ce4a2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ff1996ec67390a97db3a16f4e6b6ce4cdc7befac91c86b08089daa80ce4a2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff1996ec67390a97db3a16f4e6b6ce4cdc7befac91c86b08089daa80ce4a2e2", kill_on_drop: false }`
[INFO] [stdout] 6ff1996ec67390a97db3a16f4e6b6ce4cdc7befac91c86b08089daa80ce4a2e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] 2d9bb476f577346b2d80cb9c98e973c7ab4576a668fe6966fa8561cdcf88f9d4
[INFO] running `Command { std: "docker" "start" "-a" "2d9bb476f577346b2d80cb9c98e973c7ab4576a668fe6966fa8561cdcf88f9d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling flattree v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "2d9bb476f577346b2d80cb9c98e973c7ab4576a668fe6966fa8561cdcf88f9d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d9bb476f577346b2d80cb9c98e973c7ab4576a668fe6966fa8561cdcf88f9d4", kill_on_drop: false }`
[INFO] [stdout] 2d9bb476f577346b2d80cb9c98e973c7ab4576a668fe6966fa8561cdcf88f9d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] ab5fd5411717bf1868e5049b4ff7e7f9877105aa7578cab493280e313aa43b94
[INFO] running `Command { std: "docker" "start" "-a" "ab5fd5411717bf1868e5049b4ff7e7f9877105aa7578cab493280e313aa43b94", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling flattree v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "ab5fd5411717bf1868e5049b4ff7e7f9877105aa7578cab493280e313aa43b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab5fd5411717bf1868e5049b4ff7e7f9877105aa7578cab493280e313aa43b94", kill_on_drop: false }`
[INFO] [stdout] ab5fd5411717bf1868e5049b4ff7e7f9877105aa7578cab493280e313aa43b94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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] 2a6d2b12429cb1ce3bf9e884e8a371adfcbfdaef4e42255fbe824016d982fa0e
[INFO] running `Command { std: "docker" "start" "-a" "2a6d2b12429cb1ce3bf9e884e8a371adfcbfdaef4e42255fbe824016d982fa0e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flattree-35d73ae7a3908183)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test test_child_to_parent_to_child ... ok
[INFO] [stdout] test test_base_blocks ... ok
[INFO] [stdout] test test_children ... ok
[INFO] [stdout] test test_count ... ok
[INFO] [stdout] test test_depths ... ok
[INFO] [stdout] test test_full_roots ... ok
[INFO] [stdout] test test_iterator ... ok
[INFO] [stdout] test test_iterator_non_leaf_start ... ok
[INFO] [stdout] test test_left_child ... ok
[INFO] [stdout] test test_left_span ... ok
[INFO] [stdout] test test_offsets ... ok
[INFO] [stdout] test test_parent_gt_int32 ... ok
[INFO] [stdout] test test_parents ... ok
[INFO] [stdout] test test_right_child ... ok
[INFO] [stdout] test test_right_span ... ok
[INFO] [stdout] test test_siblings ... ok
[INFO] [stdout] test test_spans ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flattree
[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" "2a6d2b12429cb1ce3bf9e884e8a371adfcbfdaef4e42255fbe824016d982fa0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6d2b12429cb1ce3bf9e884e8a371adfcbfdaef4e42255fbe824016d982fa0e", kill_on_drop: false }`
[INFO] [stdout] 2a6d2b12429cb1ce3bf9e884e8a371adfcbfdaef4e42255fbe824016d982fa0e