[INFO] cloning repository https://github.com/lwassermann/apa102d-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lwassermann/apa102d-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flwassermann%2Fapa102d-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flwassermann%2Fapa102d-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3a96ac3621287861dd6664dce3bda5653ba8322
[INFO] testing lwassermann/apa102d-rust against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flwassermann%2Fapa102d-rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lwassermann/apa102d-rust on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lwassermann/apa102d-rust
[INFO] finished tweaking git repo https://github.com/lwassermann/apa102d-rust
[INFO] tweaked toml for git repo https://github.com/lwassermann/apa102d-rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/lwassermann/apa102d-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spidev v0.3.0
[INFO] [stderr]   Downloaded nix v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b5dbff156cc3db2cd1a77c88a2ad322f0c5573229e3c2267674ba418e16ecbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6b5dbff156cc3db2cd1a77c88a2ad322f0c5573229e3c2267674ba418e16ecbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b5dbff156cc3db2cd1a77c88a2ad322f0c5573229e3c2267674ba418e16ecbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5dbff156cc3db2cd1a77c88a2ad322f0c5573229e3c2267674ba418e16ecbb", kill_on_drop: false }`
[INFO] [stdout] 6b5dbff156cc3db2cd1a77c88a2ad322f0c5573229e3c2267674ba418e16ecbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6aa9084423b33b80b014b7095aedfeecc99ee43ce1bb05cf955b062cc110f77b
[INFO] running `Command { std: "docker" "start" "-a" "6aa9084423b33b80b014b7095aedfeecc99ee43ce1bb05cf955b062cc110f77b", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling spidev v0.3.0
[INFO] [stderr]    Compiling apa102d-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::slice`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::slice;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:57:27
[INFO] [stdout]    |
[INFO] [stdout] 57 |     apa102_sync(&mut spi, &leds);
[INFO] [stdout]    |                           ^^^^^ expected slice `[u8]`, found array of 3 elements
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&[u8]`
[INFO] [stdout]               found reference `&[Pixel; 3]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |     apa102_sync(&mut spi, &leds);
[INFO] [stdout]    |                           ^^^^^ expected slice `[u8]`, found array of 3 elements
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&[u8]`
[INFO] [stdout]               found reference `&[Pixel; 3]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:72:27
[INFO] [stdout]    |
[INFO] [stdout] 72 |     apa102_sync(&mut spi, &leds);
[INFO] [stdout]    |                           ^^^^^ expected slice `[u8]`, found array of 3 elements
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&[u8]`
[INFO] [stdout]               found reference `&[Pixel; 3]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `apa102d-rust` due to 4 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6aa9084423b33b80b014b7095aedfeecc99ee43ce1bb05cf955b062cc110f77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa9084423b33b80b014b7095aedfeecc99ee43ce1bb05cf955b062cc110f77b", kill_on_drop: false }`
[INFO] [stdout] 6aa9084423b33b80b014b7095aedfeecc99ee43ce1bb05cf955b062cc110f77b