[INFO] fetching crate lcd 0.4.1...
[INFO] testing lcd-0.4.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate lcd 0.4.1 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate lcd 0.4.1
[INFO] finished tweaking crates.io crate lcd 0.4.1
[INFO] tweaked toml for crates.io crate lcd 0.4.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lcd 0.4.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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 diff v0.1.13
[INFO] [stderr]   Downloaded yansi v1.0.1
[INFO] [stderr]   Downloaded pretty_assertions v1.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10ffb69234791c664dec79742b8b207d0789391bd2b663cfc5b700b5cbc4dd4d
[INFO] running `Command { std: "docker" "start" "-a" "10ffb69234791c664dec79742b8b207d0789391bd2b663cfc5b700b5cbc4dd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10ffb69234791c664dec79742b8b207d0789391bd2b663cfc5b700b5cbc4dd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10ffb69234791c664dec79742b8b207d0789391bd2b663cfc5b700b5cbc4dd4d", kill_on_drop: false }`
[INFO] [stdout] 10ffb69234791c664dec79742b8b207d0789391bd2b663cfc5b700b5cbc4dd4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46a7c3a647f6aca6f9173ab731fa3a35907e0086d9ef47f02827a9ffa982d432
[INFO] running `Command { std: "docker" "start" "-a" "46a7c3a647f6aca6f9173ab731fa3a35907e0086d9ef47f02827a9ffa982d432", kill_on_drop: false }`
[INFO] [stderr]    Compiling lcd v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait `InternalHardware` is never used
[INFO] [stdout]    --> src/lib.rs:171:7
[INFO] [stdout]     |
[INFO] [stdout] 171 | trait InternalHardware {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:9
[INFO] [stdout]     |
[INFO] [stdout]   3 | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait `WaitReady` is never used
[INFO] [stdout]    --> src/lib.rs:235:7
[INFO] [stdout]     |
[INFO] [stdout] 235 | trait WaitReady {
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lcd` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "46a7c3a647f6aca6f9173ab731fa3a35907e0086d9ef47f02827a9ffa982d432", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a7c3a647f6aca6f9173ab731fa3a35907e0086d9ef47f02827a9ffa982d432", kill_on_drop: false }`
[INFO] [stdout] 46a7c3a647f6aca6f9173ab731fa3a35907e0086d9ef47f02827a9ffa982d432