[INFO] fetching crate cortex-m-microclock 0.1.0...
[INFO] checking cortex-m-microclock-0.1.0 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate cortex-m-microclock 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate cortex-m-microclock 0.1.0 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate cortex-m-microclock 0.1.0
[INFO] finished tweaking crates.io crate cortex-m-microclock 0.1.0
[INFO] tweaked toml for crates.io crate cortex-m-microclock 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate cortex-m-microclock 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded defmt v0.3.5
[INFO] [stderr]   Downloaded defmt-parser v0.3.3
[INFO] [stderr]   Downloaded defmt-macros v0.3.6
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded stm32f1 v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fbc026fa0054ac3d7c659e0dd4c7ea46cc20e981cf18b6008e6f9e4492d6a55
[INFO] running `Command { std: "docker" "start" "-a" "3fbc026fa0054ac3d7c659e0dd4c7ea46cc20e981cf18b6008e6f9e4492d6a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fbc026fa0054ac3d7c659e0dd4c7ea46cc20e981cf18b6008e6f9e4492d6a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fbc026fa0054ac3d7c659e0dd4c7ea46cc20e981cf18b6008e6f9e4492d6a55", kill_on_drop: false }`
[INFO] [stdout] 3fbc026fa0054ac3d7c659e0dd4c7ea46cc20e981cf18b6008e6f9e4492d6a55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d240ab9e600ce0515c27e27110ba043a3d277da8640cd21f8cb4dfd2de30cd7
[INFO] running `Command { std: "docker" "start" "-a" "2d240ab9e600ce0515c27e27110ba043a3d277da8640cd21f8cb4dfd2de30cd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling defmt v0.3.5
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling defmt-macros v0.3.6
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking critical-section v1.1.2
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling panic-probe v0.3.1
[INFO] [stderr]    Compiling cortex-m-microclock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling defmt-rtt v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking gcd v2.3.0
[INFO] [stderr]    Compiling stm32f1 v0.15.1
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]     Checking fugit v0.3.7
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling thiserror-impl v1.0.49
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling defmt-parser v0.3.3
[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 `cortex-m-microclock` (example "stm32f1") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2d240ab9e600ce0515c27e27110ba043a3d277da8640cd21f8cb4dfd2de30cd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d240ab9e600ce0515c27e27110ba043a3d277da8640cd21f8cb4dfd2de30cd7", kill_on_drop: false }`
[INFO] [stdout] 2d240ab9e600ce0515c27e27110ba043a3d277da8640cd21f8cb4dfd2de30cd7
