[INFO] fetching crate grove-matrix-led-my9221-rs 0.2.0...
[INFO] testing grove-matrix-led-my9221-rs-0.2.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate grove-matrix-led-my9221-rs 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate grove-matrix-led-my9221-rs 0.2.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/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-0-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-dma v0.1.2
[INFO] [stderr]   Downloaded embedded-time v0.12.1
[INFO] [stderr]   Downloaded slice-group-by v0.2.6
[INFO] [stderr]   Downloaded accelerometer v0.12.0
[INFO] [stderr]   Downloaded cargo_metadata v0.13.1
[INFO] [stderr]   Downloaded r0 v0.2.2
[INFO] [stderr]   Downloaded paste v1.0.6
[INFO] [stderr]   Downloaded semver v1.0.5
[INFO] [stderr]   Downloaded cortex-m v0.7.4
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.15
[INFO] [stderr]   Downloaded micromath v1.1.1
[INFO] [stderr]   Downloaded rtcc v0.2.1
[INFO] [stderr]   Downloaded stm32f3 v0.13.2
[INFO] [stderr]   Downloaded generic-array v0.11.2
[INFO] [stderr]   Downloaded stm32f3-discovery v0.7.2
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.6.15
[INFO] [stderr]   Downloaded switch-hal v0.4.0
[INFO] [stderr]   Downloaded embedded-hal v0.2.6
[INFO] [stderr]   Downloaded stm32f3xx-hal v0.7.0
[INFO] [stderr]   Downloaded panic-itm v0.4.2
[INFO] [stderr]   Downloaded lsm303dlhc v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ea5bc441444a1c2c6cdb72f7d24a78b432dbca58831209b9fedbec0cddfacac
[INFO] running `Command { std: "docker" "start" "-a" "7ea5bc441444a1c2c6cdb72f7d24a78b432dbca58831209b9fedbec0cddfacac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ea5bc441444a1c2c6cdb72f7d24a78b432dbca58831209b9fedbec0cddfacac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea5bc441444a1c2c6cdb72f7d24a78b432dbca58831209b9fedbec0cddfacac", kill_on_drop: false }`
[INFO] [stdout] 7ea5bc441444a1c2c6cdb72f7d24a78b432dbca58831209b9fedbec0cddfacac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ca3857487fd11971aabd0f11496ca78b0a9ded61d47f5f152c665d04dac5d63
[INFO] running `Command { std: "docker" "start" "-a" "6ca3857487fd11971aabd0f11496ca78b0a9ded61d47f5f152c665d04dac5d63", kill_on_drop: false }`
[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] warning: the feature `destructuring_assignment` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(destructuring_assignment)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[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` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6ca3857487fd11971aabd0f11496ca78b0a9ded61d47f5f152c665d04dac5d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ca3857487fd11971aabd0f11496ca78b0a9ded61d47f5f152c665d04dac5d63", kill_on_drop: false }`
[INFO] [stdout] 6ca3857487fd11971aabd0f11496ca78b0a9ded61d47f5f152c665d04dac5d63
