[INFO] fetching crate microbit-clock 0.1.0...
[INFO] checking microbit-clock-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate microbit-clock 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate microbit-clock 0.1.0
[INFO] finished tweaking crates.io crate microbit-clock 0.1.0
[INFO] tweaked toml for crates.io crate microbit-clock 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate microbit-clock 0.1.0 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 microbit-clock 0.1.0 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 embassy-time v0.3.2
[INFO] [stderr]   Downloaded embassy-executor-macros v0.4.2
[INFO] [stderr]   Downloaded microbit-bsp v0.3.0
[INFO] [stderr]   Downloaded defmt-rtt v0.4.1
[INFO] [stderr]   Downloaded lsm303agr v0.3.0
[INFO] [stderr]   Downloaded embassy-embedded-hal v0.1.0
[INFO] [stderr]   Downloaded embassy-executor v0.5.1
[INFO] [stderr]   Downloaded embassy-hal-internal v0.1.0
[INFO] [stderr]   Downloaded embassy-nrf v0.1.0
[INFO] [stderr]   Downloaded fixed v1.28.0
[INFO] [stderr]   Downloaded nrf5340-net-pac v0.12.2
[INFO] [stderr]   Downloaded nrf9160-pac v0.12.2
[INFO] [stderr]   Downloaded nrf52805-pac v0.12.2
[INFO] [stderr]   Downloaded nrf52811-pac v0.12.2
[INFO] [stderr]   Downloaded nrf52810-pac v0.12.2
[INFO] [stderr]   Downloaded nrf52820-pac v0.12.2
[INFO] [stderr]   Downloaded nrf52832-pac v0.12.2
[INFO] [stderr]   Downloaded nrf52840-pac v0.12.2
[INFO] [stderr]   Downloaded nrf52833-pac v0.12.2
[INFO] [stderr]   Downloaded nrf5340-app-pac v0.12.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1fd6b05c907e4ce41bf2d16aa713f762bca7f28c4f2052ff177d05c7da9a4985
[INFO] running `Command { std: "docker" "start" "-a" "1fd6b05c907e4ce41bf2d16aa713f762bca7f28c4f2052ff177d05c7da9a4985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fd6b05c907e4ce41bf2d16aa713f762bca7f28c4f2052ff177d05c7da9a4985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd6b05c907e4ce41bf2d16aa713f762bca7f28c4f2052ff177d05c7da9a4985", kill_on_drop: false }`
[INFO] [stdout] 1fd6b05c907e4ce41bf2d16aa713f762bca7f28c4f2052ff177d05c7da9a4985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 07d6727d79ef46708a5ab9770f5427cf92f88228032d5c05f9675537b8d66e4f
[INFO] running `Command { std: "docker" "start" "-a" "07d6727d79ef46708a5ab9770f5427cf92f88228032d5c05f9675537b8d66e4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling defmt v0.3.10
[INFO] [stderr]    Compiling thiserror v2.0.8
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling defmt-macros v0.4.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]    Compiling embassy-time-driver v0.1.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling embassy-time-queue-driver v0.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.5
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]    Compiling embassy-sync v0.5.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]     Checking embedded-storage v0.3.1
[INFO] [stderr]    Compiling nrf52833-pac v0.12.2
[INFO] [stderr]    Compiling fixed v1.28.0
[INFO] [stderr]    Compiling embassy-hal-internal v0.1.0
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking embassy-futures v0.1.1
[INFO] [stderr]     Checking bytemuck v1.20.0
[INFO] [stderr]     Checking embedded-storage-async v0.4.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling defmt-rtt v0.4.1
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling embassy-executor v0.5.1
[INFO] [stderr]    Compiling panic-probe v0.3.2
[INFO] [stderr]    Compiling microbit-clock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking lsm303agr v0.3.0
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling document-features v0.2.10
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling thiserror-impl v2.0.8
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.5
[INFO] [stderr]    Compiling defmt-parser v0.4.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling embassy-executor-macros v0.4.2
[INFO] [stderr]     Checking embassy-time v0.3.2
[INFO] [stderr]     Checking embassy-usb-driver v0.1.0
[INFO] [stderr]     Checking embassy-embedded-hal v0.1.0
[INFO] [stderr]     Checking embassy-nrf v0.1.0
[INFO] [stderr]     Checking microbit-bsp v0.3.0
[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 `microbit-clock` (bin "microbit-clock") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "07d6727d79ef46708a5ab9770f5427cf92f88228032d5c05f9675537b8d66e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d6727d79ef46708a5ab9770f5427cf92f88228032d5c05f9675537b8d66e4f", kill_on_drop: false }`
[INFO] [stdout] 07d6727d79ef46708a5ab9770f5427cf92f88228032d5c05f9675537b8d66e4f