[INFO] fetching crate mk66f18 0.2.0...
[INFO] checking mk66f18-0.2.0 against beta for pr-78714
[INFO] extracting crate mk66f18 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate mk66f18 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mk66f18 0.2.0
[INFO] finished tweaking crates.io crate mk66f18 0.2.0
[INFO] tweaked toml for crates.io crate mk66f18 0.2.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate mk66f18 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] 0ec395cb2bd4648efc3ae0c6ee226987147aef1e02a4190f6d36372ddbdd84fb
[INFO] running `Command { std: "docker" "start" "-a" "0ec395cb2bd4648efc3ae0c6ee226987147aef1e02a4190f6d36372ddbdd84fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ec395cb2bd4648efc3ae0c6ee226987147aef1e02a4190f6d36372ddbdd84fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec395cb2bd4648efc3ae0c6ee226987147aef1e02a4190f6d36372ddbdd84fb", kill_on_drop: false }`
[INFO] [stdout] 0ec395cb2bd4648efc3ae0c6ee226987147aef1e02a4190f6d36372ddbdd84fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 478e5f23352ab6130747c26f6eacf0030eec179ed3f9054e376e074b297bfd3c
[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" "478e5f23352ab6130747c26f6eacf0030eec179ed3f9054e376e074b297bfd3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling mk66f18 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking as-slice v0.1.0
[INFO] [stderr]     Checking aligned v0.3.1
[INFO] [stderr] error: could not compile `mk66f18`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name mk66f18 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test -C metadata=7825e29fcfcd65e5 -C extra-filename=-7825e29fcfcd65e5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-e6028e3680ce68ae.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-ccecee7920e34a0b.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-563ad38c55a2c007.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" "478e5f23352ab6130747c26f6eacf0030eec179ed3f9054e376e074b297bfd3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "478e5f23352ab6130747c26f6eacf0030eec179ed3f9054e376e074b297bfd3c", kill_on_drop: false }`
[INFO] [stdout] 478e5f23352ab6130747c26f6eacf0030eec179ed3f9054e376e074b297bfd3c