[INFO] cloning repository https://github.com/ghaworth/modbus-slave
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ghaworth/modbus-slave" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghaworth%2Fmodbus-slave", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghaworth%2Fmodbus-slave'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79106defb5ac805933d4c0b67e97b21329e2451b
[INFO] testing ghaworth/modbus-slave against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghaworth%2Fmodbus-slave" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/ghaworth/modbus-slave
[INFO] finished tweaking git repo https://github.com/ghaworth/modbus-slave
[INFO] tweaked toml for git repo https://github.com/ghaworth/modbus-slave written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ghaworth/modbus-slave on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ghaworth/modbus-slave 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded panic-probe v1.0.0
[INFO] [stderr]   Downloaded cortex-m v0.7.7
[INFO] [stderr]   Downloaded volatile-register v0.2.2
[INFO] [stderr]   Downloaded embassy-executor-macros v0.8.0
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded embedded-storage-async v0.4.1
[INFO] [stderr]   Downloaded embassy-usb-driver v0.2.1
[INFO] [stderr]   Downloaded embedded-storage v0.3.1
[INFO] [stderr]   Downloaded embassy-executor-timer-queue v0.1.0
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.5
[INFO] [stderr]   Downloaded embassy-time-queue-utils v0.3.2
[INFO] [stderr]   Downloaded defmt-rtt v1.2.0
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.5
[INFO] [stderr]   Downloaded embassy-hal-internal v0.5.0
[INFO] [stderr]   Downloaded cordyceps v0.3.4
[INFO] [stderr]   Downloaded embassy-executor v0.10.0
[INFO] [stderr]   Downloaded embassy-nrf v0.10.0
[INFO] [stderr]   Downloaded fixed v1.30.0
[INFO] [stderr]   Downloaded nrf-pac v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c
[INFO] running `Command { std: "docker" "start" "ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c", 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" "ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling defmt v1.1.0
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling defmt-macros v1.1.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling heapless v0.9.3
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling embassy-time-driver v0.2.2
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling embedded-io v0.7.1
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling embedded-io-async v0.7.0
[INFO] [stderr]    Compiling embassy-hal-internal v0.4.0
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling embassy-sync v0.8.0
[INFO] [stderr]    Compiling embassy-hal-internal v0.5.0
[INFO] [stderr]    Compiling embassy-executor-timer-queue v0.1.0
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling fixed v1.30.0
[INFO] [stderr]    Compiling embassy-time-queue-utils v0.3.2
[INFO] [stderr]    Compiling nrf-pac v0.3.0
[INFO] [stderr]    Compiling panic-probe v1.0.0
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling az v1.3.0
[INFO] [stderr]    Compiling embedded-storage-async v0.4.1
[INFO] [stderr]    Compiling embassy-futures v0.1.2
[INFO] [stderr]    Compiling typenum v1.20.0
[INFO] [stderr]    Compiling defmt-rtt v1.2.0
[INFO] [stderr]    Compiling embassy-executor v0.10.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling modbus-slave v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cordyceps v0.3.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.5
[INFO] [stderr]    Compiling defmt-parser v1.0.0
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling embassy-executor-macros v0.8.0
[INFO] [stderr]    Compiling embassy-time v0.5.1
[INFO] [stderr]    Compiling embassy-usb-driver v0.2.1
[INFO] [stderr]    Compiling embassy-embedded-hal v0.6.0
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling embassy-nrf 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 `modbus-slave` (bin "modbus-slave") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c", kill_on_drop: false }`
[INFO] [stdout] ce72d2548490f11a14b2a1ab9d67af4650bf0333f2944c4fb55eebaa3e00146c
