[INFO] fetching crate mk66f18 0.2.0...
[INFO] checking mk66f18-0.2.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate mk66f18 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate mk66f18 0.2.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-10/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50686b68596a7818d10e05705eb373e59f67ba665faaf100bc7e1dc02166161b
[INFO] running `Command { std: "docker" "start" "-a" "50686b68596a7818d10e05705eb373e59f67ba665faaf100bc7e1dc02166161b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50686b68596a7818d10e05705eb373e59f67ba665faaf100bc7e1dc02166161b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50686b68596a7818d10e05705eb373e59f67ba665faaf100bc7e1dc02166161b", kill_on_drop: false }`
[INFO] [stdout] 50686b68596a7818d10e05705eb373e59f67ba665faaf100bc7e1dc02166161b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b2850cb0f189af3f95dc7de9c602da2eea447eba964c4273bf1da9b53d8bff0
[INFO] running `Command { std: "docker" "start" "-a" "5b2850cb0f189af3f95dc7de9c602da2eea447eba964c4273bf1da9b53d8bff0", 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 --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=89713bed7ae1ee83 -C extra-filename=-89713bed7ae1ee83 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-7403d0f933fa65fd.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-8237e1bfcd9630ad.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-b485110a8845b4d8.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" "5b2850cb0f189af3f95dc7de9c602da2eea447eba964c4273bf1da9b53d8bff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2850cb0f189af3f95dc7de9c602da2eea447eba964c4273bf1da9b53d8bff0", kill_on_drop: false }`
[INFO] [stdout] 5b2850cb0f189af3f95dc7de9c602da2eea447eba964c4273bf1da9b53d8bff0