[INFO] cloning repository https://github.com/00tanker00/InefficientRustRPiUHDTreeLights
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/00tanker00/InefficientRustRPiUHDTreeLights" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F00tanker00%2FInefficientRustRPiUHDTreeLights", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F00tanker00%2FInefficientRustRPiUHDTreeLights'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdf1a511dab00175a86ccfc0438a08e3e9f5946d
[INFO] checking 00tanker00/InefficientRustRPiUHDTreeLights against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F00tanker00%2FInefficientRustRPiUHDTreeLights" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/00tanker00/InefficientRustRPiUHDTreeLights on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/00tanker00/InefficientRustRPiUHDTreeLights
[INFO] finished tweaking git repo https://github.com/00tanker00/InefficientRustRPiUHDTreeLights
[INFO] tweaked toml for git repo https://github.com/00tanker00/InefficientRustRPiUHDTreeLights written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/00tanker00/InefficientRustRPiUHDTreeLights already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bcafc09badb0eca04661eda7e1fb1020ac4ded0aa49cf93526d6a4a429d04b9
[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" "8bcafc09badb0eca04661eda7e1fb1020ac4ded0aa49cf93526d6a4a429d04b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bcafc09badb0eca04661eda7e1fb1020ac4ded0aa49cf93526d6a4a429d04b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bcafc09badb0eca04661eda7e1fb1020ac4ded0aa49cf93526d6a4a429d04b9", kill_on_drop: false }`
[INFO] [stdout] 8bcafc09badb0eca04661eda7e1fb1020ac4ded0aa49cf93526d6a4a429d04b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ff5f1b81f7d4a679d6d1d59a1aebfe6431d8e92cf9d99a96a46ba8725f22f4b
[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" "6ff5f1b81f7d4a679d6d1d59a1aebfe6431d8e92cf9d99a96a46ba8725f22f4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking unicorn_hat_hd v0.2.1
[INFO] [stdout] error[E0658]: use of unstable library feature 'array_methods'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unicorn_hat_hd-0.2.1/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]     = help: add `#![feature(array_methods)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unicorn_hat_hd-0.2.1/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
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6ff5f1b81f7d4a679d6d1d59a1aebfe6431d8e92cf9d99a96a46ba8725f22f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff5f1b81f7d4a679d6d1d59a1aebfe6431d8e92cf9d99a96a46ba8725f22f4b", kill_on_drop: false }`
[INFO] [stdout] 6ff5f1b81f7d4a679d6d1d59a1aebfe6431d8e92cf9d99a96a46ba8725f22f4b