[INFO] cloning repository https://github.com/jjyr/blake2b-ref.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjyr/blake2b-ref.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjyr%2Fblake2b-ref.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjyr%2Fblake2b-ref.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d5d537cda94a0d97af6e918b3ff3864627aa90d
[INFO] documenting jjyr/blake2b-ref.rs against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjyr%2Fblake2b-ref.rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jjyr/blake2b-ref.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] started tweaking git repo https://github.com/jjyr/blake2b-ref.rs
[INFO] finished tweaking git repo https://github.com/jjyr/blake2b-ref.rs
[INFO] tweaked toml for git repo https://github.com/jjyr/blake2b-ref.rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jjyr/blake2b-ref.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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] eb4f44eabecc29d44b490de1574bda8875306af4e80f1c1db793b4bfceefb71b
[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" "eb4f44eabecc29d44b490de1574bda8875306af4e80f1c1db793b4bfceefb71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb4f44eabecc29d44b490de1574bda8875306af4e80f1c1db793b4bfceefb71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4f44eabecc29d44b490de1574bda8875306af4e80f1c1db793b4bfceefb71b", kill_on_drop: false }`
[INFO] [stdout] eb4f44eabecc29d44b490de1574bda8875306af4e80f1c1db793b4bfceefb71b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 907be6a88ce8ed085ea27d14fc3e9aa402ff2535e174db845a26d7fbaf9a78f9
[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" "907be6a88ce8ed085ea27d14fc3e9aa402ff2535e174db845a26d7fbaf9a78f9", kill_on_drop: false }`
[INFO] [stderr]  Documenting blake2b-ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `[u8]`, which is not FFI-safe
[INFO] [stdout]   --> src/blake2b_ref.rs:87:44
[INFO] [stdout]    |
[INFO] [stdout] 87 | unsafe extern "C" fn secure_zero_memory(v: &mut [u8], mut n: usize) {
[INFO] [stdout]    |                                            ^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider using a raw pointer instead
[INFO] [stdout]    = note: slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "907be6a88ce8ed085ea27d14fc3e9aa402ff2535e174db845a26d7fbaf9a78f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "907be6a88ce8ed085ea27d14fc3e9aa402ff2535e174db845a26d7fbaf9a78f9", kill_on_drop: false }`
[INFO] [stdout] 907be6a88ce8ed085ea27d14fc3e9aa402ff2535e174db845a26d7fbaf9a78f9