[INFO] cloning repository https://github.com/niklasad1/nrf52dk-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niklasad1/nrf52dk-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklasad1%2Fnrf52dk-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklasad1%2Fnrf52dk-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0cb257deefa1a18ad1286d150d7e1059298a57af
[INFO] documenting niklasad1/nrf52dk-rs against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklasad1%2Fnrf52dk-rs" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/niklasad1/nrf52dk-rs on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/niklasad1/nrf52dk-rs
[INFO] finished tweaking git repo https://github.com/niklasad1/nrf52dk-rs
[INFO] tweaked toml for git repo https://github.com/niklasad1/nrf52dk-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/niklasad1/nrf52dk-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] d1da0e1dc6435af39d51f72ab3a8932f3dc16c88abad96b4b6ecac32c98a3503
[INFO] running `Command { std: "docker" "start" "-a" "d1da0e1dc6435af39d51f72ab3a8932f3dc16c88abad96b4b6ecac32c98a3503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1da0e1dc6435af39d51f72ab3a8932f3dc16c88abad96b4b6ecac32c98a3503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1da0e1dc6435af39d51f72ab3a8932f3dc16c88abad96b4b6ecac32c98a3503", kill_on_drop: false }`
[INFO] [stdout] d1da0e1dc6435af39d51f72ab3a8932f3dc16c88abad96b4b6ecac32c98a3503
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 55373cc64d243fd262423264225d01292d79d08ab7c6007827633d20a81034a4
[INFO] running `Command { std: "docker" "start" "-a" "55373cc64d243fd262423264225d01292d79d08ab7c6007827633d20a81034a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.5.7
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]     Checking bare-metal v0.2.3
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking tock-registers v0.1.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]  Documenting nrf52dk-rs v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `fn() -> T`, which is not FFI-safe
[INFO] [stdout]  --> src/lang_items.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern "C" fn start<T>(main: fn() -> T, _argc: isize, _argv: *const *const u8) -> i32
[INFO] [stdout]   |                              ^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]   = help: consider using an `extern fn(...) -> ...` function pointer instead
[INFO] [stdout]   = note: this function pointer has Rust-specific calling convention
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[n]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/peripherals/gpio.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |     /// PIN_CNF[n].SENSE
[INFO] [stdout]    |                 ^ cannot be resolved, ignoring
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "55373cc64d243fd262423264225d01292d79d08ab7c6007827633d20a81034a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55373cc64d243fd262423264225d01292d79d08ab7c6007827633d20a81034a4", kill_on_drop: false }`
[INFO] [stdout] 55373cc64d243fd262423264225d01292d79d08ab7c6007827633d20a81034a4