[INFO] fetching crate midi-port 0.1.0...
[INFO] testing midi-port-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate midi-port 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate midi-port 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking crates.io crate midi-port 0.1.0
[INFO] finished tweaking crates.io crate midi-port 0.1.0
[INFO] tweaked toml for crates.io crate midi-port 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate midi-port 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.5
[INFO] [stderr]   Downloaded typenum v1.11.2
[INFO] [stderr]   Downloaded generic-array v0.13.2
[INFO] [stderr]   Downloaded num-traits v0.2.10
[INFO] [stderr]   Downloaded panic-semihosting v0.5.3
[INFO] [stderr]   Downloaded nb v0.1.2
[INFO] [stderr]   Downloaded cortex-m v0.6.1
[INFO] [stderr]   Downloaded embedded-hal v0.2.3
[INFO] [stderr]   Downloaded panic-halt v0.2.0
[INFO] [stderr]   Downloaded cast v0.2.3
[INFO] [stderr]   Downloaded vcell v0.1.2
[INFO] [stderr]   Downloaded stable_deref_trait v1.1.1
[INFO] [stderr]   Downloaded volatile-register v0.2.0
[INFO] [stderr]   Downloaded stm32f4 v0.8.0
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.1.6
[INFO] [stderr]   Downloaded as-slice v0.1.2
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.10
[INFO] [stderr]   Downloaded stm32f4xx-hal v0.5.0
[INFO] [stderr]   Downloaded aligned v0.3.2
[INFO] [stderr]   Downloaded stm32f4 v0.7.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04baa934a651b7f863c558bbf73dce73c77b37f313464ec6a577dc77b0f0fb2e
[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" "04baa934a651b7f863c558bbf73dce73c77b37f313464ec6a577dc77b0f0fb2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04baa934a651b7f863c558bbf73dce73c77b37f313464ec6a577dc77b0f0fb2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04baa934a651b7f863c558bbf73dce73c77b37f313464ec6a577dc77b0f0fb2e", kill_on_drop: false }`
[INFO] [stdout] 04baa934a651b7f863c558bbf73dce73c77b37f313464ec6a577dc77b0f0fb2e
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a77b3207040e1f52274dae4abca416a353310dccd0d561ff8f200a93e503f639
[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" "a77b3207040e1f52274dae4abca416a353310dccd0d561ff8f200a93e503f639", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling midi-port v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "a77b3207040e1f52274dae4abca416a353310dccd0d561ff8f200a93e503f639", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a77b3207040e1f52274dae4abca416a353310dccd0d561ff8f200a93e503f639", kill_on_drop: false }`
[INFO] [stdout] a77b3207040e1f52274dae4abca416a353310dccd0d561ff8f200a93e503f639
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d54a93045168df423564b6525fc46e8e042213a2a8ea1de841d2e2de878d516c
[INFO] running `Command { std: "docker" "start" "-a" "d54a93045168df423564b6525fc46e8e042213a2a8ea1de841d2e2de878d516c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.10
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling stm32f4 v0.7.1
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling stm32f4 v0.8.0
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling as-slice v0.1.2
[INFO] [stderr]    Compiling aligned v0.3.2
[INFO] [stderr]    Compiling panic-semihosting v0.5.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.6
[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,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="cortex-m-rt"' --cfg 'feature="default"' --cfg 'feature="rt"' --cfg 'feature="stm32f407"' -C metadata=7f76d93b1c803b3c -C extra-filename=-7f76d93b1c803b3c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-cf79133e730d315a.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-53508a90ce8ed604.rmeta --extern cortex_m_rt=/opt/rustwide/target/debug/deps/libcortex_m_rt-69c9cca350b5d787.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-41d094cb852596e2.rmeta --cap-lints allow --cap-lints=warn -L /opt/rustwide/target/debug/build/stm32f4-6057b3a2e5734d8c/out -L /opt/rustwide/target/debug/build/cortex-m-rt-69c08761ce574d2c/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" "d54a93045168df423564b6525fc46e8e042213a2a8ea1de841d2e2de878d516c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54a93045168df423564b6525fc46e8e042213a2a8ea1de841d2e2de878d516c", kill_on_drop: false }`
[INFO] [stdout] d54a93045168df423564b6525fc46e8e042213a2a8ea1de841d2e2de878d516c