[INFO] cloning repository https://github.com/satler-git/fantastic-disco
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/satler-git/fantastic-disco" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatler-git%2Ffantastic-disco", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatler-git%2Ffantastic-disco'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16ba971843bfc3f9c6b33c0597b78d75eb498d6f
[INFO] checking satler-git/fantastic-disco against master#b56aaec52bc0fa35591a872fb4aac81f606e265c for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatler-git%2Ffantastic-disco" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/satler-git/fantastic-disco
[INFO] finished tweaking git repo https://github.com/satler-git/fantastic-disco
[INFO] tweaked toml for git repo https://github.com/satler-git/fantastic-disco written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/satler-git/fantastic-disco on toolchain b56aaec52bc0fa35591a872fb4aac81f606e265c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/satler-git/fantastic-disco 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" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded format_no_std v1.2.0
[INFO] [stderr]   Downloaded microbit-bsp v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f9b75efd4c24937adedbb0894695bc6981c14a9be52ccf62b6bc7027d491091
[INFO] running `Command { std: "docker" "start" "-a" "2f9b75efd4c24937adedbb0894695bc6981c14a9be52ccf62b6bc7027d491091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f9b75efd4c24937adedbb0894695bc6981c14a9be52ccf62b6bc7027d491091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9b75efd4c24937adedbb0894695bc6981c14a9be52ccf62b6bc7027d491091", kill_on_drop: false }`
[INFO] [stdout] 2f9b75efd4c24937adedbb0894695bc6981c14a9be52ccf62b6bc7027d491091
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bef60412289602c07ca87a9ee4959c957f315510c66a229ad5588ca39d1aa6f
[INFO] running `Command { std: "docker" "start" "-a" "9bef60412289602c07ca87a9ee4959c957f315510c66a229ad5588ca39d1aa6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling defmt v0.3.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling thiserror v1.0.66
[INFO] [stderr]    Compiling defmt-macros v0.3.9
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking bitflags v1.3.2
[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 nb v0.1.3
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling portable-atomic v1.9.0
[INFO] [stderr]    Compiling embassy-time-queue-driver v0.1.0
[INFO] [stderr]    Compiling nrf52833-pac v0.12.2
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling fixed v1.28.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling embassy-time-driver v0.1.0
[INFO] [stderr]     Checking embedded-storage v0.3.1
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking bytemuck v1.19.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling syn v2.0.86
[INFO] [stderr]    Compiling document-features v0.2.10
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling embassy-sync v0.5.0
[INFO] [stderr]    Compiling nrf-hal-common v0.18.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]    Compiling embassy-hal-internal v0.1.0
[INFO] [stderr]    Compiling nrf52833-hal v0.18.0
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking embedded-storage-async v0.4.1
[INFO] [stderr]     Checking embassy-futures v0.1.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling embassy-executor v0.5.1
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling panic-probe v0.3.2
[INFO] [stderr]    Compiling defmt-rtt v0.4.1
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking tiny-led-matrix v1.0.2
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking lsm303agr v0.3.0
[INFO] [stderr]    Compiling fantastic-disco v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking format_no_std v1.2.0
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.66
[INFO] [stderr]    Compiling defmt-parser v0.3.4
[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-usb-driver v0.1.0
[INFO] [stderr]     Checking usb-device v0.3.2
[INFO] [stderr]     Checking embassy-time v0.3.2
[INFO] [stderr]     Checking nrf-usbd v0.3.0
[INFO] [stderr]     Checking embassy-embedded-hal v0.1.0
[INFO] [stderr]     Checking embassy-nrf v0.1.0
[INFO] [stderr]     Checking microbit-common v0.15.1
[INFO] [stderr]     Checking microbit-v2 v0.15.1
[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 `fantastic-disco` (bin "fantastic-disco") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9bef60412289602c07ca87a9ee4959c957f315510c66a229ad5588ca39d1aa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bef60412289602c07ca87a9ee4959c957f315510c66a229ad5588ca39d1aa6f", kill_on_drop: false }`
[INFO] [stdout] 9bef60412289602c07ca87a9ee4959c957f315510c66a229ad5588ca39d1aa6f