[INFO] fetching crate rx8900 0.1.2...
[INFO] checking rx8900-0.1.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rx8900 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rx8900 0.1.2
[INFO] finished tweaking crates.io crate rx8900 0.1.2
[INFO] tweaked toml for crates.io crate rx8900 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rx8900 0.1.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rx8900 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d4950ef2fc624faff7fc9c90ba52f6030e84c8132c5987ada6b7658df29e5d9
[INFO] running `Command { std: "docker" "start" "-a" "3d4950ef2fc624faff7fc9c90ba52f6030e84c8132c5987ada6b7658df29e5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d4950ef2fc624faff7fc9c90ba52f6030e84c8132c5987ada6b7658df29e5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d4950ef2fc624faff7fc9c90ba52f6030e84c8132c5987ada6b7658df29e5d9", kill_on_drop: false }`
[INFO] [stdout] 3d4950ef2fc624faff7fc9c90ba52f6030e84c8132c5987ada6b7658df29e5d9
[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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 928fdcad52077346fb4d838b0eb34c7fec03b2783bc18ea9ea23f5b34172aeb3
[INFO] running `Command { std: "docker" "start" "-a" "928fdcad52077346fb4d838b0eb34c7fec03b2783bc18ea9ea23f5b34172aeb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.80
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[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]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling debug-helper v0.3.13
[INFO] [stderr]    Compiling frunk_core v0.4.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crc-any v2.4.4
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]    Compiling syn v2.0.59
[INFO] [stderr]    Compiling rp2040-pac v0.6.0
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]     Checking critical-section v1.1.2
[INFO] [stderr]     Checking usb-device v0.3.2
[INFO] [stderr]    Compiling rp2040-boot2 v0.3.0
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]     Checking either v1.11.0
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking fugit v0.3.7
[INFO] [stderr]     Checking embedded-hal-nb v1.0.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking bitfield v0.14.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling rp-pico v0.9.0
[INFO] [stderr]    Compiling panic-probe v0.3.1
[INFO] [stderr]     Checking linked_list_allocator v0.10.5
[INFO] [stderr]     Checking embedded-alloc v0.5.1
[INFO] [stderr]     Checking usbd-serial v0.2.1
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.1.2
[INFO] [stderr]    Compiling frunk_derives v0.4.2
[INFO] [stderr]     Checking rx8900 v0.1.2 (/opt/rustwide/workdir)
[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 v0.10.0
[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] [stderr] error: could not compile `rx8900` (example "rpi_pico") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "928fdcad52077346fb4d838b0eb34c7fec03b2783bc18ea9ea23f5b34172aeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "928fdcad52077346fb4d838b0eb34c7fec03b2783bc18ea9ea23f5b34172aeb3", kill_on_drop: false }`
[INFO] [stdout] 928fdcad52077346fb4d838b0eb34c7fec03b2783bc18ea9ea23f5b34172aeb3