[INFO] fetching crate mk66f18 0.2.0...
[INFO] documenting mk66f18-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[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-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-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-2022-05-20" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fab4e67c7dd4548e8e6f763c6ade7847a48cad4f72e3998995c7ea54790e25bc
[INFO] running `Command { std: "docker" "start" "-a" "fab4e67c7dd4548e8e6f763c6ade7847a48cad4f72e3998995c7ea54790e25bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fab4e67c7dd4548e8e6f763c6ade7847a48cad4f72e3998995c7ea54790e25bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab4e67c7dd4548e8e6f763c6ade7847a48cad4f72e3998995c7ea54790e25bc", kill_on_drop: false }`
[INFO] [stdout] fab4e67c7dd4548e8e6f763c6ade7847a48cad4f72e3998995c7ea54790e25bc
[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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3718ece411ec2145a3fde6e60964bc56b13e8932d4dc956201ffd6567a5267d5
[INFO] running `Command { std: "docker" "start" "-a" "3718ece411ec2145a3fde6e60964bc56b13e8932d4dc956201ffd6567a5267d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling mk66f18 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.4
[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]  Documenting mk66f18 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `mk66f18`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name mk66f18 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a235ecfffbc987a0 -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-f4e91a948d576bdc.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-1a37b766d5794fb9.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-e1a4be04b1d40b22.rmeta --cap-lints=warn --crate-version 0.2.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "3718ece411ec2145a3fde6e60964bc56b13e8932d4dc956201ffd6567a5267d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3718ece411ec2145a3fde6e60964bc56b13e8932d4dc956201ffd6567a5267d5", kill_on_drop: false }`
[INFO] [stdout] 3718ece411ec2145a3fde6e60964bc56b13e8932d4dc956201ffd6567a5267d5