[INFO] fetching crate mt6701 0.2.5...
[INFO] testing mt6701-0.2.5 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mt6701 0.2.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mt6701 0.2.5
[INFO] finished tweaking crates.io crate mt6701 0.2.5
[INFO] tweaked toml for crates.io crate mt6701 0.2.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mt6701 0.2.5 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mt6701 0.2.5 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b31a7334eb44e4a6dedecd83bf47684b6b9be1927c973d9eddb5e5305f118755
[INFO] running `Command { std: "docker" "start" "-a" "b31a7334eb44e4a6dedecd83bf47684b6b9be1927c973d9eddb5e5305f118755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b31a7334eb44e4a6dedecd83bf47684b6b9be1927c973d9eddb5e5305f118755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31a7334eb44e4a6dedecd83bf47684b6b9be1927c973d9eddb5e5305f118755", kill_on_drop: false }`
[INFO] [stdout] b31a7334eb44e4a6dedecd83bf47684b6b9be1927c973d9eddb5e5305f118755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc3a85532dc0c60d1e51c4d1646e2c3b8daf7c6e6192d5b5d59980293f662bad
[INFO] running `Command { std: "docker" "start" "-a" "cc3a85532dc0c60d1e51c4d1646e2c3b8daf7c6e6192d5b5d59980293f662bad", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling mt6701 v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "cc3a85532dc0c60d1e51c4d1646e2c3b8daf7c6e6192d5b5d59980293f662bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc3a85532dc0c60d1e51c4d1646e2c3b8daf7c6e6192d5b5d59980293f662bad", kill_on_drop: false }`
[INFO] [stdout] cc3a85532dc0c60d1e51c4d1646e2c3b8daf7c6e6192d5b5d59980293f662bad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a01e286c62a21970d717c7f2d8577a1dbdba3e14d7fd02c64d1382cc6924818f
[INFO] running `Command { std: "docker" "start" "-a" "a01e286c62a21970d717c7f2d8577a1dbdba3e14d7fd02c64d1382cc6924818f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling debug-helper v0.3.13
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling frunk_core v0.4.2
[INFO] [stderr]    Compiling rp2040-pac v0.5.0
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling fugit v0.3.7
[INFO] [stderr]    Compiling embedded-dma v0.2.0
[INFO] [stderr]    Compiling crc-any v2.4.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling usb-device v0.2.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling mt6701 v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rp2040-boot2 v0.3.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.1.2
[INFO] [stderr]    Compiling frunk_derives v0.4.2
[INFO] [stderr]    Compiling frunk v0.4.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling num_enum v0.5.11
[INFO] [stderr]    Compiling rp2040-hal-macros v0.1.0
[INFO] [stderr]    Compiling pio v0.2.1
[INFO] [stderr]    Compiling rp2040-hal v0.9.1
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `angle`
[INFO] [stdout]   --> examples/pico.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let angle = sensor.get_angle();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_angle`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `turns`
[INFO] [stdout]   --> examples/pico.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let turns = sensor.get_turns();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_turns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `position`
[INFO] [stdout]   --> examples/pico.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let position = sensor.get_position();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `velocity`
[INFO] [stdout]   --> examples/pico.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let velocity = sensor.get_velocity();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_velocity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mt6701` (example "pico") due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a01e286c62a21970d717c7f2d8577a1dbdba3e14d7fd02c64d1382cc6924818f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01e286c62a21970d717c7f2d8577a1dbdba3e14d7fd02c64d1382cc6924818f", kill_on_drop: false }`
[INFO] [stdout] a01e286c62a21970d717c7f2d8577a1dbdba3e14d7fd02c64d1382cc6924818f
