[INFO] fetching crate rabbit_borough 0.1.7...
[INFO] building rabbit_borough-0.1.7 against try#14accda7ba2c586835d15379a621955d9f047371 for pr-103610
[INFO] extracting crate rabbit_borough 0.1.7 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rabbit_borough 0.1.7 on toolchain 14accda7ba2c586835d15379a621955d9f047371
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rabbit_borough 0.1.7
[INFO] finished tweaking crates.io crate rabbit_borough 0.1.7
[INFO] tweaked toml for crates.io crate rabbit_borough 0.1.7 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rabbit_borough 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ad6a6296944b8e7ecd2185869acf694a3a0926058c9977eb23216e94c223f43
[INFO] running `Command { std: "docker" "start" "-a" "2ad6a6296944b8e7ecd2185869acf694a3a0926058c9977eb23216e94c223f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ad6a6296944b8e7ecd2185869acf694a3a0926058c9977eb23216e94c223f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ad6a6296944b8e7ecd2185869acf694a3a0926058c9977eb23216e94c223f43", kill_on_drop: false }`
[INFO] [stdout] 2ad6a6296944b8e7ecd2185869acf694a3a0926058c9977eb23216e94c223f43
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24895e58ef6b929f35d4bbd2a0c0a9343566bae906a2253729debf0c1e47bd27
[INFO] running `Command { std: "docker" "start" "-a" "24895e58ef6b929f35d4bbd2a0c0a9343566bae906a2253729debf0c1e47bd27", kill_on_drop: false }`
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[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.61s
[INFO] running `Command { std: "docker" "inspect" "24895e58ef6b929f35d4bbd2a0c0a9343566bae906a2253729debf0c1e47bd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24895e58ef6b929f35d4bbd2a0c0a9343566bae906a2253729debf0c1e47bd27", kill_on_drop: false }`
[INFO] [stdout] 24895e58ef6b929f35d4bbd2a0c0a9343566bae906a2253729debf0c1e47bd27
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c607c2d60a8fd741cb79e96b1cc71c04834831d7bd283ab69256b7c12fa0546
[INFO] running `Command { std: "docker" "start" "-a" "4c607c2d60a8fd741cb79e96b1cc71c04834831d7bd283ab69256b7c12fa0546", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rabbit_borough v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `property_a` and `property_b` are never read
[INFO] [stdout]   --> examples/consumer_wo.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct RandomObject {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 12 |     property_a: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     property_b: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RandomObject` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 21.48s
[INFO] running `Command { std: "docker" "inspect" "4c607c2d60a8fd741cb79e96b1cc71c04834831d7bd283ab69256b7c12fa0546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c607c2d60a8fd741cb79e96b1cc71c04834831d7bd283ab69256b7c12fa0546", kill_on_drop: false }`
[INFO] [stdout] 4c607c2d60a8fd741cb79e96b1cc71c04834831d7bd283ab69256b7c12fa0546