[INFO] fetching crate grove-matrix-led-my9221-rs 0.2.0...
[INFO] testing grove-matrix-led-my9221-rs-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate grove-matrix-led-my9221-rs 0.2.0 into /workspace/builds/worker-61/source
[INFO] validating manifest of crates.io crate grove-matrix-led-my9221-rs 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-61/source/.cargo/config.toml
[INFO] started tweaking crates.io crate grove-matrix-led-my9221-rs 0.2.0
[INFO] finished tweaking crates.io crate grove-matrix-led-my9221-rs 0.2.0
[INFO] tweaked toml for crates.io crate grove-matrix-led-my9221-rs 0.2.0 written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate crates.io crate grove-matrix-led-my9221-rs 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cb7132f0ccc9208e083692aaabeda0c1a367572f8a2b2a67e4f312e689d0976
[INFO] running `Command { std: "docker" "start" "-a" "1cb7132f0ccc9208e083692aaabeda0c1a367572f8a2b2a67e4f312e689d0976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cb7132f0ccc9208e083692aaabeda0c1a367572f8a2b2a67e4f312e689d0976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb7132f0ccc9208e083692aaabeda0c1a367572f8a2b2a67e4f312e689d0976", kill_on_drop: false }`
[INFO] [stdout] 1cb7132f0ccc9208e083692aaabeda0c1a367572f8a2b2a67e4f312e689d0976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e144e7c26ac8f8f5ac251fd4078500f234703b0c5f20fb8a5d7890c71bb5aea1
[INFO] running `Command { std: "docker" "start" "-a" "e144e7c26ac8f8f5ac251fd4078500f234703b0c5f20fb8a5d7890c71bb5aea1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling grove-matrix-led-my9221-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(destructuring_assignment)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grove-matrix-led-my9221-rs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e144e7c26ac8f8f5ac251fd4078500f234703b0c5f20fb8a5d7890c71bb5aea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e144e7c26ac8f8f5ac251fd4078500f234703b0c5f20fb8a5d7890c71bb5aea1", kill_on_drop: false }`
[INFO] [stdout] e144e7c26ac8f8f5ac251fd4078500f234703b0c5f20fb8a5d7890c71bb5aea1