[INFO] fetching crate st7920 0.2.1...
[INFO] checking st7920-0.2.1 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate st7920 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate st7920 0.2.1 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking crates.io crate st7920 0.2.1
[INFO] finished tweaking crates.io crate st7920 0.2.1
[INFO] tweaked toml for crates.io crate st7920 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate st7920 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b4729ae6713e01ea100e42aecd477fb5a938d6e47630af02dec89e5b98aa6f5
[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" "1b4729ae6713e01ea100e42aecd477fb5a938d6e47630af02dec89e5b98aa6f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b4729ae6713e01ea100e42aecd477fb5a938d6e47630af02dec89e5b98aa6f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b4729ae6713e01ea100e42aecd477fb5a938d6e47630af02dec89e5b98aa6f5", kill_on_drop: false }`
[INFO] [stdout] 1b4729ae6713e01ea100e42aecd477fb5a938d6e47630af02dec89e5b98aa6f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25c2bc0a6fa413580cd1ff1ecc5ebe10bad7f592aacb8bbbcede07693bd929f9
[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" "25c2bc0a6fa413580cd1ff1ecc5ebe10bad7f592aacb8bbbcede07693bd929f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling stm32f4 v0.7.1
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling st7920 v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling stm32f4 v0.8.0
[INFO] [stderr]     Checking embedded-graphics v0.6.0-alpha.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.2
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking cortex-m-rt v0.6.12
[INFO] [stderr] error: could not compile `stm32f4`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name stm32f4 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stm32f4-0.7.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="cortex-m-rt"' --cfg 'feature="default"' --cfg 'feature="rt"' --cfg 'feature="stm32f407"' -C metadata=d705a2fa1d087386 -C extra-filename=-d705a2fa1d087386 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-aee9dfd56e1fcfd6.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-f18a27fc511b0b73.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-0285535105cf14f1.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-1b8e350253f2bbf3.rmeta --cap-lints allow --cap-lints=forbid -L /opt/rustwide/target/debug/build/stm32f4-203e2d5a28285d9a/out -L /opt/rustwide/target/debug/build/cortex-m-rt-a72bba9de0e0f46a/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "25c2bc0a6fa413580cd1ff1ecc5ebe10bad7f592aacb8bbbcede07693bd929f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25c2bc0a6fa413580cd1ff1ecc5ebe10bad7f592aacb8bbbcede07693bd929f9", kill_on_drop: false }`
[INFO] [stdout] 25c2bc0a6fa413580cd1ff1ecc5ebe10bad7f592aacb8bbbcede07693bd929f9