[INFO] cloning repository https://github.com/ImplFerris/microbit-sound-meter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ImplFerris/microbit-sound-meter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImplFerris%2Fmicrobit-sound-meter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImplFerris%2Fmicrobit-sound-meter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac5a3bd771d1c434605a45e9fd10de9a77bf18fa
[INFO] checking ImplFerris/microbit-sound-meter against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6+rustflags=-Znext-solver=coherence for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImplFerris%2Fmicrobit-sound-meter" "/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] removed /workspace/builds/worker-5-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/ImplFerris/microbit-sound-meter
[INFO] finished tweaking git repo https://github.com/ImplFerris/microbit-sound-meter
[INFO] tweaked toml for git repo https://github.com/ImplFerris/microbit-sound-meter written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ImplFerris/microbit-sound-meter on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ImplFerris/microbit-sound-meter 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/embassy-rs/embassy.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/lulf/microbit-bsp`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded defmt v0.3.100
[INFO] [stderr]   Downloaded panic-probe v0.3.2
[INFO] [stderr]   Downloaded defmt v1.1.1
[INFO] [stderr]   Downloaded defmt-parser v1.0.0
[INFO] [stderr]   Downloaded defmt-macros v1.1.1
[INFO] [stderr]   Downloaded static_cell v2.1.1
[INFO] [stderr]   Downloaded nb v1.1.0
[INFO] [stderr]   Downloaded embedded-hal-async v1.0.0
[INFO] [stderr]   Downloaded embedded-storage-async v0.4.1
[INFO] [stderr]   Downloaded defmt-rtt v0.4.2
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded cortex-m-macros v0.7.8
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded hash32 v0.3.1
[INFO] [stderr]   Downloaded embedded-hal v1.0.0
[INFO] [stderr]   Downloaded az v1.3.0
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.6
[INFO] [stderr]   Downloaded embedded-io-async v0.6.1
[INFO] [stderr]   Downloaded embedded-storage v0.3.1
[INFO] [stderr]   Downloaded volatile-register v0.2.2
[INFO] [stderr]   Downloaded maybe-async-cfg v0.2.5
[INFO] [stderr]   Downloaded embedded-hal v0.2.7
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.6
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded embassy-sync v0.6.2
[INFO] [stderr]   Downloaded cortex-m v0.7.9
[INFO] [stderr]   Downloaded lsm303agr v1.1.0
[INFO] [stderr]   Downloaded heapless v0.8.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.56
[INFO] [stderr]   Downloaded pulldown-cmark v0.11.3
[INFO] [stderr]   Downloaded fixed v1.31.0
[INFO] [stderr]   Downloaded portable-atomic v1.15.0
[INFO] [stderr]   Downloaded zerocopy v0.8.56
[INFO] [stderr]   Downloaded syn v3.0.4
[INFO] [stderr]   Downloaded nrf-pac v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6
[INFO] running `Command { std: "docker" "start" "d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Znext-solver=coherence" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling thiserror v2.0.20
[INFO] [stderr]    Compiling defmt v1.1.1
[INFO] [stderr]    Compiling defmt-macros v1.1.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling cortex-m v0.7.9
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cortex-m-macros v0.7.8
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking futures-sink v0.3.34
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking futures-core v0.3.34
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking futures-task v0.3.34
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]     Checking futures-util v0.3.34
[INFO] [stderr]    Compiling autocfg v1.5.1
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]    Compiling embassy-time-driver v0.2.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]    Compiling zerocopy v0.8.56
[INFO] [stderr]    Compiling smallvec v1.15.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling embassy-hal-internal v0.2.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]    Compiling embassy-sync v0.7.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]    Compiling embassy-executor v0.7.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]    Compiling pulldown-cmark v0.11.3
[INFO] [stderr]     Checking embedded-storage v0.3.1
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling portable-atomic v1.15.0
[INFO] [stderr]    Compiling fixed v1.31.0
[INFO] [stderr]    Compiling embassy-time-queue-utils v0.1.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]    Compiling nrf-pac v0.1.0
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling unicase v2.9.0
[INFO] [stderr]    Compiling bitflags v2.13.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking embedded-storage-async v0.4.1
[INFO] [stderr]     Checking bytemuck v1.25.2
[INFO] [stderr]     Checking typenum v1.20.1
[INFO] [stderr]     Checking embassy-futures v0.1.1 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]     Checking az v1.3.0
[INFO] [stderr]     Checking futures-channel v0.3.34
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]    Compiling panic-probe v0.3.2
[INFO] [stderr]     Checking futures-io v0.3.34
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling syn v3.0.4
[INFO] [stderr]    Compiling proc-macro-utils v0.10.0
[INFO] [stderr]    Compiling embassy-sync v0.6.2
[INFO] [stderr]    Compiling defmt-rtt v0.4.2
[INFO] [stderr]    Compiling microbit-sound-meter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking static_cell v2.1.1
[INFO] [stderr]    Compiling manyhow-macros v0.11.4
[INFO] [stderr]     Checking futures v0.3.34
[INFO] [stderr]    Compiling thiserror-impl v2.0.20
[INFO] [stderr]    Compiling defmt-parser v1.0.0
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling manyhow v0.11.4
[INFO] [stderr]    Compiling zerocopy-derive v0.8.56
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.6
[INFO] [stderr]    Compiling maybe-async-cfg v0.2.5
[INFO] [stderr]     Checking defmt v0.3.100
[INFO] [stderr]     Checking embassy-time v0.4.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]     Checking embassy-usb-driver v0.1.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]     Checking lsm303agr v1.1.0
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]     Checking embassy-embedded-hal v0.3.0 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling embassy-executor-macros v0.6.2 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking embassy-nrf v0.3.1 (https://github.com/embassy-rs/embassy.git?rev=f35aa4005a63e8d478b2b95aaa2bfb316b72dece#f35aa400)
[INFO] [stderr]     Checking microbit-bsp v0.4.0 (https://github.com/lulf/microbit-bsp?rev=19d555b#19d555bf)
[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-sound-meter` (bin "microbit-sound-meter") due to 2 previous errors
[INFO] [stderr] warning: unused dependency `embassy-sync`
[INFO] [stderr]   --> Cargo.toml:28:15
[INFO] [stderr]    |
[INFO] [stderr] 28 | [dependencies.embassy-sync]
[INFO] [stderr]    |               ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `embassy-sync`
[INFO] [stderr] warning: `microbit-sound-meter` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6", kill_on_drop: false }`
[INFO] [stdout] d39a6bb44c6ce174253c6c766f9a0caab3797e728bdfd272a5e3ba47f8c48fd6
