[INFO] fetching crate dino 0.1.2...
[INFO] testing dino-0.1.2 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate dino 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dino 0.1.2 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dino 0.1.2
[INFO] finished tweaking crates.io crate dino 0.1.2
[INFO] tweaked toml for crates.io crate dino 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate dino 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] [stderr] Downloading crates ...
[INFO] [stderr] Downloaded serde_json v1.0.59
[INFO] [stderr] Downloaded serde v1.0.117
[INFO] [stderr] Downloaded itoa v0.4.6
[INFO] [stderr] Downloaded ryu v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5f00701351e7b98e0e9275198f71ce03b5dd90f0c3ad16dea3a0cb53b140744
[INFO] running `Command { std: "docker" "start" "-a" "f5f00701351e7b98e0e9275198f71ce03b5dd90f0c3ad16dea3a0cb53b140744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5f00701351e7b98e0e9275198f71ce03b5dd90f0c3ad16dea3a0cb53b140744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5f00701351e7b98e0e9275198f71ce03b5dd90f0c3ad16dea3a0cb53b140744", kill_on_drop: false }`
[INFO] [stdout] f5f00701351e7b98e0e9275198f71ce03b5dd90f0c3ad16dea3a0cb53b140744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 072a210b525570d2ec3ad0ec007fb0129e7b8b6ba5ff08cd3482c00618a1315a
[INFO] running `Command { std: "docker" "start" "-a" "072a210b525570d2ec3ad0ec007fb0129e7b8b6ba5ff08cd3482c00618a1315a", kill_on_drop: false }`
[INFO] [stderr] Compiling ryu v1.0.5
[INFO] [stderr] Compiling serde v1.0.117
[INFO] [stderr] Compiling itoa v0.4.6
[INFO] [stderr] Compiling serde_json v1.0.59
[INFO] [stderr] Compiling dino v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `data`
[INFO] [stdout] --> src/lib.rs:166:5
[INFO] [stdout] |
[INFO] [stdout] 166 | data: Mutex