[INFO] fetching crate stm32-device-signature 0.3.3...
[INFO] checking stm32-device-signature-0.3.3 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate stm32-device-signature 0.3.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stm32-device-signature 0.3.3 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stm32-device-signature 0.3.3
[INFO] finished tweaking crates.io crate stm32-device-signature 0.3.3
[INFO] tweaked toml for crates.io crate stm32-device-signature 0.3.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7f56c21bc89925f300a5bb12628c10ed58f53459edee192420cc6cb689e445e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a7f56c21bc89925f300a5bb12628c10ed58f53459edee192420cc6cb689e445e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7f56c21bc89925f300a5bb12628c10ed58f53459edee192420cc6cb689e445e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f56c21bc89925f300a5bb12628c10ed58f53459edee192420cc6cb689e445e", kill_on_drop: false }`
[INFO] [stdout] a7f56c21bc89925f300a5bb12628c10ed58f53459edee192420cc6cb689e445e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8b1483e61deb04d68480f1c0e964632c2ab0ee8fd80f1cb3b52e74c505ecbf9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c8b1483e61deb04d68480f1c0e964632c2ab0ee8fd80f1cb3b52e74c505ecbf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling stm32-device-signature v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `stm32-device-signature v0.3.3 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/stm32-device-signature-23719009407727d8/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   No family features selected
[INFO] running `Command { std: "docker" "inspect" "c8b1483e61deb04d68480f1c0e964632c2ab0ee8fd80f1cb3b52e74c505ecbf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8b1483e61deb04d68480f1c0e964632c2ab0ee8fd80f1cb3b52e74c505ecbf9", kill_on_drop: false }`
[INFO] [stdout] c8b1483e61deb04d68480f1c0e964632c2ab0ee8fd80f1cb3b52e74c505ecbf9