[INFO] fetching crate mt6701 0.2.5...
[INFO] checking mt6701-0.2.5 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate mt6701 0.2.5 into /workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mt6701 0.2.5 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded frunk_derives v0.4.2
[INFO] [stderr]   Downloaded rp2040-hal-macros v0.1.0
[INFO] [stderr]   Downloaded pio v0.2.1
[INFO] [stderr]   Downloaded frunk_proc_macro_helpers v0.1.2
[INFO] [stderr]   Downloaded frunk_core v0.4.2
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded crc-any v2.4.3
[INFO] [stderr]   Downloaded rp2040-boot2 v0.3.0
[INFO] [stderr]   Downloaded frunk v0.4.2
[INFO] [stderr]   Downloaded rp2040-hal v0.9.1
[INFO] [stderr]   Downloaded rp2040-pac v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f33ace6e54339a4d3590aae7128ebf43342012fa52299c3903ae4d80d561d614
[INFO] running `Command { std: "docker" "start" "-a" "f33ace6e54339a4d3590aae7128ebf43342012fa52299c3903ae4d80d561d614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f33ace6e54339a4d3590aae7128ebf43342012fa52299c3903ae4d80d561d614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f33ace6e54339a4d3590aae7128ebf43342012fa52299c3903ae4d80d561d614", kill_on_drop: false }`
[INFO] [stdout] f33ace6e54339a4d3590aae7128ebf43342012fa52299c3903ae4d80d561d614
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0358fe0167f4a64b3afa0f660ebe45ad39e11ec37ec65caca039f0b6b10832a7
[INFO] running `Command { std: "docker" "start" "-a" "0358fe0167f4a64b3afa0f660ebe45ad39e11ec37ec65caca039f0b6b10832a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling debug-helper v0.3.13
[INFO] [stderr]    Compiling frunk_core v0.4.2
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling crc-any v2.4.3
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling rp2040-pac v0.5.0
[INFO] [stderr]    Compiling rp2040-boot2 v0.3.0
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking critical-section v1.1.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking fugit v0.3.7
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking mt6701 v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.1.2
[INFO] [stderr]    Compiling frunk_derives v0.4.2
[INFO] [stderr]     Checking 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 rp2040-hal-macros v0.1.0
[INFO] [stderr]     Checking num_enum v0.5.11
[INFO] [stderr]     Checking pio v0.2.1
[INFO] [stderr]     Checking 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)]` 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" "0358fe0167f4a64b3afa0f660ebe45ad39e11ec37ec65caca039f0b6b10832a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0358fe0167f4a64b3afa0f660ebe45ad39e11ec37ec65caca039f0b6b10832a7", kill_on_drop: false }`
[INFO] [stdout] 0358fe0167f4a64b3afa0f660ebe45ad39e11ec37ec65caca039f0b6b10832a7