[INFO] fetching crate gd32f4 0.1.0-alpha.1...
[INFO] testing gd32f4-0.1.0-alpha.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate gd32f4 0.1.0-alpha.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate gd32f4 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate gd32f4 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate gd32f4 0.1.0-alpha.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gd32f4 0.1.0-alpha.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to highest compatible versions
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b
[INFO] running `Command { std: "docker" "start" "cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b", 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" "cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b" "/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" "cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b", 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" "cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b" "/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 v1.0.107
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.7
[INFO] [stderr]    Compiling cortex-m-macros v0.7.8
[INFO] [stderr]    Compiling cortex-m v0.7.9
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling gd32f4 v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling bare-metal v1.0.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr] error: failed to run custom build command for `gd32f4 v0.1.0-alpha.1 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/build/gd32f4-624bfbe8253e8ea3/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-search=/opt/rustwide/target/release/build/gd32f4-85951d442ac8c89e/out
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (244) panicked at build.rs:10:18:
[INFO] [stderr]   No device features selected
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5ad1368acdc1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x5ad1368bd97a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x5ad1368b079c - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x5ad136895e36 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x5ad1368a8831 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x5ad1368a89eb - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x5ad13689549c - std[70759c8f55707aa4]::panicking::begin_panic::<&str>::{closure#0}
[INFO] [stderr]      7:     0x5ad13688ef89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::begin_panic<&str>::{closure#0}, !>
[INFO] [stderr]      8:     0x5ad13688ca2b - std[70759c8f55707aa4]::panicking::begin_panic::<&str>
[INFO] [stderr]      9:     0x5ad136884810 - build_script_build[9011b34b4a8a3b40]::main
[INFO] [stderr]     10:     0x5ad136884e43 - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     11:     0x5ad136884406 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     12:     0x5ad136884529 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     13:     0x5ad1368a7f99 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     14:     0x5ad1368842b1 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stderr]     15:     0x5ad136884e85 - main
[INFO] [stderr]     16:     0x7d364666a601 - <unknown>
[INFO] [stderr]     17:     0x7d364666a718 - __libc_start_main
[INFO] [stderr]     18:     0x5ad136884025 - _start
[INFO] [stderr]     19:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b", kill_on_drop: false }`
[INFO] [stdout] cc24821d436321d7172c7c87f9cc4d12708d3d253d132c91a28d3a6d17f6441b
