[INFO] cloning repository https://github.com/willmurphyscode/simple-rust-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/willmurphyscode/simple-rust-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillmurphyscode%2Fsimple-rust-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillmurphyscode%2Fsimple-rust-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9fed11bd29057459ead0b54458541ad1302e25c7
[INFO] testing willmurphyscode/simple-rust-tree against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwillmurphyscode%2Fsimple-rust-tree" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/willmurphyscode/simple-rust-tree 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 git repo https://github.com/willmurphyscode/simple-rust-tree
[INFO] finished tweaking git repo https://github.com/willmurphyscode/simple-rust-tree
[INFO] tweaked toml for git repo https://github.com/willmurphyscode/simple-rust-tree written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/willmurphyscode/simple-rust-tree already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] f1548dfd6221a188f6eeb83b2d206cfe8efc396f4f7f46d3eb2c83f9e25f9b63
[INFO] running `Command { std: "docker" "start" "-a" "f1548dfd6221a188f6eeb83b2d206cfe8efc396f4f7f46d3eb2c83f9e25f9b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1548dfd6221a188f6eeb83b2d206cfe8efc396f4f7f46d3eb2c83f9e25f9b63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1548dfd6221a188f6eeb83b2d206cfe8efc396f4f7f46d3eb2c83f9e25f9b63", kill_on_drop: false }`
[INFO] [stdout] f1548dfd6221a188f6eeb83b2d206cfe8efc396f4f7f46d3eb2c83f9e25f9b63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 2869ab8bee596330f74e60c12d0796b93f06f4d61fbe13c1cdb1403772f024c9
[INFO] running `Command { std: "docker" "start" "-a" "2869ab8bee596330f74e60c12d0796b93f06f4d61fbe13c1cdb1403772f024c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.24
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling tree_walker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             (our_fruit + recursive_count_fruit(unboxed.left_child) +
[INFO] [stdout]    |             ^
[INFO] [stdout] 13 |                  recursive_count_fruit(unboxed.right_child))
[INFO] [stdout]    |                                                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 ~             our_fruit + recursive_count_fruit(unboxed.left_child) +
[INFO] [stdout] 13 ~                  recursive_count_fruit(unboxed.right_child)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "2869ab8bee596330f74e60c12d0796b93f06f4d61fbe13c1cdb1403772f024c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2869ab8bee596330f74e60c12d0796b93f06f4d61fbe13c1cdb1403772f024c9", kill_on_drop: false }`
[INFO] [stdout] 2869ab8bee596330f74e60c12d0796b93f06f4d61fbe13c1cdb1403772f024c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 23615e76c28c1764e40b8dc7796555bfcfdd3fe051b14c7c5959b6e0b7dd7a1f
[INFO] running `Command { std: "docker" "start" "-a" "23615e76c28c1764e40b8dc7796555bfcfdd3fe051b14c7c5959b6e0b7dd7a1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree_walker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             (our_fruit + recursive_count_fruit(unboxed.left_child) +
[INFO] [stdout]    |             ^
[INFO] [stdout] 13 |                  recursive_count_fruit(unboxed.right_child))
[INFO] [stdout]    |                                                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 ~             our_fruit + recursive_count_fruit(unboxed.left_child) +
[INFO] [stdout] 13 ~                  recursive_count_fruit(unboxed.right_child)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "23615e76c28c1764e40b8dc7796555bfcfdd3fe051b14c7c5959b6e0b7dd7a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23615e76c28c1764e40b8dc7796555bfcfdd3fe051b14c7c5959b6e0b7dd7a1f", kill_on_drop: false }`
[INFO] [stdout] 23615e76c28c1764e40b8dc7796555bfcfdd3fe051b14c7c5959b6e0b7dd7a1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 9711bb72b5a0932c602defff90500d147eef096251663b2afabb5c4959e20945
[INFO] running `Command { std: "docker" "start" "-a" "9711bb72b5a0932c602defff90500d147eef096251663b2afabb5c4959e20945", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/main.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             (our_fruit + recursive_count_fruit(unboxed.left_child) +
[INFO] [stderr]    |             ^
[INFO] [stderr] 13 |                  recursive_count_fruit(unboxed.right_child))
[INFO] [stderr]    |                                                            ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 12 ~             our_fruit + recursive_count_fruit(unboxed.left_child) +
[INFO] [stderr] 13 ~                  recursive_count_fruit(unboxed.right_child)
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `tree_walker` (bin "tree_walker" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tree_walker-c408a133ac9c5404)
[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" "9711bb72b5a0932c602defff90500d147eef096251663b2afabb5c4959e20945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9711bb72b5a0932c602defff90500d147eef096251663b2afabb5c4959e20945", kill_on_drop: false }`
[INFO] [stdout] 9711bb72b5a0932c602defff90500d147eef096251663b2afabb5c4959e20945