[INFO] fetching crate k22f 0.1.0...
[INFO] checking k22f-0.1.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate k22f 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate k22f 0.1.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate k22f 0.1.0
[INFO] finished tweaking crates.io crate k22f 0.1.0
[INFO] tweaked toml for crates.io crate k22f 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3359efd277f9af5b39125f2f55be69989d21ba92b45681d9fe8e6dcfc2306d6f
[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" "3359efd277f9af5b39125f2f55be69989d21ba92b45681d9fe8e6dcfc2306d6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3359efd277f9af5b39125f2f55be69989d21ba92b45681d9fe8e6dcfc2306d6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3359efd277f9af5b39125f2f55be69989d21ba92b45681d9fe8e6dcfc2306d6f", kill_on_drop: false }`
[INFO] [stdout] 3359efd277f9af5b39125f2f55be69989d21ba92b45681d9fe8e6dcfc2306d6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] add535ea20279c56cc701b767c7131c7a0430edc43b27fe198319a984d1bd7bd
[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" "add535ea20279c56cc701b767c7131c7a0430edc43b27fe198319a984d1bd7bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]    Compiling k22f v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr] error: could not compile `k22f`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name k22f --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test -C metadata=9a71e605a0511fa5 -C extra-filename=-9a71e605a0511fa5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-96a68a87349c7f47.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-ac7c1d77e4653abc.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-68d426a8db839521.rmeta --cap-lints=forbid` (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" "add535ea20279c56cc701b767c7131c7a0430edc43b27fe198319a984d1bd7bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add535ea20279c56cc701b767c7131c7a0430edc43b27fe198319a984d1bd7bd", kill_on_drop: false }`
[INFO] [stdout] add535ea20279c56cc701b767c7131c7a0430edc43b27fe198319a984d1bd7bd