[INFO] fetching crate vexide-devices 0.9.0-alpha.1...
[INFO] testing vexide-devices-0.9.0-alpha.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate vexide-devices 0.9.0-alpha.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate vexide-devices 0.9.0-alpha.1
[INFO] finished tweaking crates.io crate vexide-devices 0.9.0-alpha.1
[INFO] tweaked toml for crates.io crate vexide-devices 0.9.0-alpha.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vexide-devices 0.9.0-alpha.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vexide-devices 0.9.0-alpha.1 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smart-leds-trait v0.3.2
[INFO] [stderr]   Downloaded vexide-core v0.9.0-alpha.1
[INFO] [stderr]   Downloaded vex-sdk v0.29.0-rc.1
[INFO] [stderr]   Downloaded embedded-io v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4
[INFO] running `Command { std: "docker" "start" "eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling vex-sdk v0.29.0-rc.1
[INFO] [stderr]    Compiling mint v0.5.9
[INFO] [stderr]    Compiling bytemuck_derive v1.11.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling snafu-derive v0.9.1
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling rgb v0.8.52
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling vexide-core v0.9.0-alpha.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/vexide-core-0.9.0-alpha.1/src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(never_type)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vexide-core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4", kill_on_drop: false }`
[INFO] [stdout] eef867a8160923b3d05cf9110ba2cdb69eb498a2005ef0b1951d977f20e264c4
