[INFO] fetching crate unicorn_hat_hd 0.2.1...
[INFO] testing unicorn_hat_hd-0.2.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate unicorn_hat_hd 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate unicorn_hat_hd 0.2.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unicorn_hat_hd 0.2.1
[INFO] finished tweaking crates.io crate unicorn_hat_hd 0.2.1
[INFO] tweaked toml for crates.io crate unicorn_hat_hd 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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 nix v0.6.0
[INFO] [stderr]   Downloaded ansi_term v0.10.2
[INFO] [stderr]   Downloaded spidev v0.3.0
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded bitflags v0.4.0
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 661049bd3d72e5edf8a5221efca409f6f231fd7783d76f11199e2f620da252ea
[INFO] running `Command { std: "docker" "start" "-a" "661049bd3d72e5edf8a5221efca409f6f231fd7783d76f11199e2f620da252ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "661049bd3d72e5edf8a5221efca409f6f231fd7783d76f11199e2f620da252ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "661049bd3d72e5edf8a5221efca409f6f231fd7783d76f11199e2f620da252ea", kill_on_drop: false }`
[INFO] [stdout] 661049bd3d72e5edf8a5221efca409f6f231fd7783d76f11199e2f620da252ea
[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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 415d476585a71b20af021da0d9e22a821a9e33250f5643bdf5d0eda9dfbe456d
[INFO] running `Command { std: "docker" "start" "-a" "415d476585a71b20af021da0d9e22a821a9e33250f5643bdf5d0eda9dfbe456d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling spidev v0.3.0
[INFO] [stderr]    Compiling unicorn_hat_hd v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         try!(spidev.configure(&options));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:61:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let mut spidev = try!(Spidev::open(spi_path));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'array_methods'
[INFO] [stdout]    --> src/lib.rs:165:64
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Rotate::RotNone => arr.extend_from_slice(self.leds.as_slice()),
[INFO] [stdout]     |                                                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #76118 <https://github.com/rust-lang/rust/issues/76118> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:165:54
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Rotate::RotNone => arr.extend_from_slice(self.leds.as_slice()),
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^ expected `u8`, found struct `RGB`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[u8]`
[INFO] [stdout]                found reference `&[RGB<u8>]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unicorn_hat_hd` due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "415d476585a71b20af021da0d9e22a821a9e33250f5643bdf5d0eda9dfbe456d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "415d476585a71b20af021da0d9e22a821a9e33250f5643bdf5d0eda9dfbe456d", kill_on_drop: false }`
[INFO] [stdout] 415d476585a71b20af021da0d9e22a821a9e33250f5643bdf5d0eda9dfbe456d