[INFO] fetching crate nau88c22-rs 0.2.0...
[INFO] checking nau88c22-rs-0.2.0 against try#1463461488056994d1b84e8b752e7c11c7fae7aa for pr-154205
[INFO] extracting crate nau88c22-rs 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate nau88c22-rs 0.2.0
[INFO] finished tweaking crates.io crate nau88c22-rs 0.2.0
[INFO] tweaked toml for crates.io crate nau88c22-rs 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nau88c22-rs 0.2.0 on toolchain 1463461488056994d1b84e8b752e7c11c7fae7aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nau88c22-rs 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd57a1af56df69d5f70537b328d1eb93012afb838214f006d5be81c0d59dc1bf
[INFO] running `Command { std: "docker" "start" "-a" "fd57a1af56df69d5f70537b328d1eb93012afb838214f006d5be81c0d59dc1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd57a1af56df69d5f70537b328d1eb93012afb838214f006d5be81c0d59dc1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd57a1af56df69d5f70537b328d1eb93012afb838214f006d5be81c0d59dc1bf", kill_on_drop: false }`
[INFO] [stdout] fd57a1af56df69d5f70537b328d1eb93012afb838214f006d5be81c0d59dc1bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11db8b8482c71f5acff1dc23c21594ad181548820eb07c13470f0c219de3464a
[INFO] running `Command { std: "docker" "start" "-a" "11db8b8482c71f5acff1dc23c21594ad181548820eb07c13470f0c219de3464a", kill_on_drop: false }`
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling proc-bitfield-macros v0.5.3
[INFO] [stderr]     Checking proc-bitfield v0.5.3
[INFO] [stderr]     Checking nau88c22-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::default`
[INFO] [stdout]  --> src/registers.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::default`
[INFO] [stdout]  --> src/registers.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.04s
[INFO] running `Command { std: "docker" "inspect" "11db8b8482c71f5acff1dc23c21594ad181548820eb07c13470f0c219de3464a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11db8b8482c71f5acff1dc23c21594ad181548820eb07c13470f0c219de3464a", kill_on_drop: false }`
[INFO] [stdout] 11db8b8482c71f5acff1dc23c21594ad181548820eb07c13470f0c219de3464a