[INFO] fetching crate ws2818-rgb-led-spi-driver 2.0.0...
[INFO] checking ws2818-rgb-led-spi-driver-2.0.0 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate ws2818-rgb-led-spi-driver 2.0.0 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate ws2818-rgb-led-spi-driver 2.0.0 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ws2818-rgb-led-spi-driver 2.0.0
[INFO] finished tweaking crates.io crate ws2818-rgb-led-spi-driver 2.0.0
[INFO] tweaked toml for crates.io crate ws2818-rgb-led-spi-driver 2.0.0 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0195045e10ea7a4239e41c06692c1c9d9535cb3b78ea6789f9fc345a23097cb
[INFO] running `Command { std: "docker" "start" "-a" "f0195045e10ea7a4239e41c06692c1c9d9535cb3b78ea6789f9fc345a23097cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0195045e10ea7a4239e41c06692c1c9d9535cb3b78ea6789f9fc345a23097cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0195045e10ea7a4239e41c06692c1c9d9535cb3b78ea6789f9fc345a23097cb", kill_on_drop: false }`
[INFO] [stdout] f0195045e10ea7a4239e41c06692c1c9d9535cb3b78ea6789f9fc345a23097cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ced14f88da2d960a7d25ced2af02f8b98f2068076a48fd5157d6fc7d0886646e
[INFO] running `Command { std: "docker" "start" "-a" "ced14f88da2d960a7d25ced2af02f8b98f2068076a48fd5157d6fc7d0886646e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking spidev v0.4.1
[INFO] [stderr]     Checking ws2818-rgb-led-spi-driver v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::encoding::encode_rgb_slice`
[INFO] [stdout]  --> src/adapter_spi.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::encoding::encode_rgb_slice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::fmt::format`
[INFO] [stdout]  --> src/adapter_spi.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use alloc::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::encoding::encode_rgb_slice`
[INFO] [stdout]  --> src/adapter_spi.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::encoding::encode_rgb_slice;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::fmt::format`
[INFO] [stdout]  --> src/adapter_spi.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use alloc::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "ced14f88da2d960a7d25ced2af02f8b98f2068076a48fd5157d6fc7d0886646e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ced14f88da2d960a7d25ced2af02f8b98f2068076a48fd5157d6fc7d0886646e", kill_on_drop: false }`
[INFO] [stdout] ced14f88da2d960a7d25ced2af02f8b98f2068076a48fd5157d6fc7d0886646e