[INFO] fetching crate uferris-bsp 0.1.2...
[INFO] testing uferris-bsp-0.1.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate uferris-bsp 0.1.2 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate uferris-bsp 0.1.2
[INFO] finished tweaking crates.io crate uferris-bsp 0.1.2
[INFO] tweaked toml for crates.io crate uferris-bsp 0.1.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate uferris-bsp 0.1.2 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate uferris-bsp 0.1.2 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 151ae42599c3d5c4dc931f14c9e6a5a86c1957a16da9b1d327812f152aeb1fb1
[INFO] running `Command { std: "docker" "start" "-a" "151ae42599c3d5c4dc931f14c9e6a5a86c1957a16da9b1d327812f152aeb1fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "151ae42599c3d5c4dc931f14c9e6a5a86c1957a16da9b1d327812f152aeb1fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "151ae42599c3d5c4dc931f14c9e6a5a86c1957a16da9b1d327812f152aeb1fb1", kill_on_drop: false }`
[INFO] [stdout] 151ae42599c3d5c4dc931f14c9e6a5a86c1957a16da9b1d327812f152aeb1fb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb5898a4d7e06ac4d3fb25617dbf3d075d13b4ac06c56511fde8ebf2582ab2bf
[INFO] running `Command { std: "docker" "start" "-a" "cb5898a4d7e06ac4d3fb25617dbf3d075d13b4ac06c56511fde8ebf2582ab2bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling ina219 v0.2.0
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling embedded-hal-bus v0.3.0
[INFO] [stderr]    Compiling embedded-sdmmc v0.9.0
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling bitmask-enum v2.2.5
[INFO] [stderr]    Compiling uferris-bsp v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: At least one Xiao device feature must be enabled
[INFO] [stdout]   --> src/lib.rs:73:1
[INFO] [stdout]    |
[INFO] [stdout] 73 | compile_error!("At least one Xiao device feature must be enabled");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uferris-bsp` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "cb5898a4d7e06ac4d3fb25617dbf3d075d13b4ac06c56511fde8ebf2582ab2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5898a4d7e06ac4d3fb25617dbf3d075d13b4ac06c56511fde8ebf2582ab2bf", kill_on_drop: false }`
[INFO] [stdout] cb5898a4d7e06ac4d3fb25617dbf3d075d13b4ac06c56511fde8ebf2582ab2bf
