[INFO] fetching crate flattree 2.0.0...
[INFO] testing flattree-2.0.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate flattree 2.0.0 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate flattree 2.0.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad509e6fa3f7b9f9d959b4160648188ac31049c3d0efbfe19c8f304059d334f0
[INFO] running `Command { std: "docker" "start" "-a" "ad509e6fa3f7b9f9d959b4160648188ac31049c3d0efbfe19c8f304059d334f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad509e6fa3f7b9f9d959b4160648188ac31049c3d0efbfe19c8f304059d334f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad509e6fa3f7b9f9d959b4160648188ac31049c3d0efbfe19c8f304059d334f0", kill_on_drop: false }`
[INFO] [stdout] ad509e6fa3f7b9f9d959b4160648188ac31049c3d0efbfe19c8f304059d334f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 646170cb9268e54ba530d000ff9f4379a076193bcdf484c25c9f27743f678ed1
[INFO] running `Command { std: "docker" "start" "-a" "646170cb9268e54ba530d000ff9f4379a076193bcdf484c25c9f27743f678ed1", kill_on_drop: false }`
[INFO] [stderr]    Compiling flattree v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "646170cb9268e54ba530d000ff9f4379a076193bcdf484c25c9f27743f678ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646170cb9268e54ba530d000ff9f4379a076193bcdf484c25c9f27743f678ed1", kill_on_drop: false }`
[INFO] [stdout] 646170cb9268e54ba530d000ff9f4379a076193bcdf484c25c9f27743f678ed1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 237b7e44b4978f180ae21bca3a4a877e30f9b4a592b87e30941a0d893d65554c
[INFO] running `Command { std: "docker" "start" "-a" "237b7e44b4978f180ae21bca3a4a877e30f9b4a592b87e30941a0d893d65554c", kill_on_drop: false }`
[INFO] [stderr]    Compiling flattree v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "237b7e44b4978f180ae21bca3a4a877e30f9b4a592b87e30941a0d893d65554c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "237b7e44b4978f180ae21bca3a4a877e30f9b4a592b87e30941a0d893d65554c", kill_on_drop: false }`
[INFO] [stdout] 237b7e44b4978f180ae21bca3a4a877e30f9b4a592b87e30941a0d893d65554c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f74066b3b39dddb7543320ddc540267a5f1a81a96da7355984c259a784c5734
[INFO] running `Command { std: "docker" "start" "-a" "0f74066b3b39dddb7543320ddc540267a5f1a81a96da7355984c259a784c5734", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flattree-a4397ca037aca76e)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stderr]    Doc-tests flattree
[INFO] [stdout] test test_base_blocks ... ok
[INFO] [stdout] test test_depths ... ok
[INFO] [stdout] test test_child_to_parent_to_child ... ok
[INFO] [stdout] test test_right_span ... ok
[INFO] [stdout] test test_iterator_non_leaf_start ... ok
[INFO] [stdout] test test_full_roots ... ok
[INFO] [stdout] test test_left_span ... ok
[INFO] [stdout] test test_offsets ... ok
[INFO] [stdout] test test_parents ... ok
[INFO] [stdout] test test_right_child ... ok
[INFO] [stdout] test test_count ... ok
[INFO] [stdout] test test_spans ... ok
[INFO] [stdout] test test_iterator ... ok
[INFO] [stdout] test test_left_child ... ok
[INFO] [stdout] test test_parent_gt_int32 ... ok
[INFO] [stdout] test test_children ... ok
[INFO] [stdout] test test_siblings ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0f74066b3b39dddb7543320ddc540267a5f1a81a96da7355984c259a784c5734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f74066b3b39dddb7543320ddc540267a5f1a81a96da7355984c259a784c5734", kill_on_drop: false }`
[INFO] [stdout] 0f74066b3b39dddb7543320ddc540267a5f1a81a96da7355984c259a784c5734