[INFO] updating cached repository https://github.com/samuela/rustybox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d2201eece506e88f71d0e251346bb3e92bb7aef
[INFO] documenting samuela/rustybox against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamuela%2Frustybox" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samuela/rustybox 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/samuela/rustybox
[INFO] finished tweaking git repo https://github.com/samuela/rustybox
[INFO] tweaked toml for git repo https://github.com/samuela/rustybox written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/samuela/rustybox 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e632509a58525e7dba900853ed66f9c24465cac2322b8d6af9ab0b741c0dee22
[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" "e632509a58525e7dba900853ed66f9c24465cac2322b8d6af9ab0b741c0dee22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e632509a58525e7dba900853ed66f9c24465cac2322b8d6af9ab0b741c0dee22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e632509a58525e7dba900853ed66f9c24465cac2322b8d6af9ab0b741c0dee22", kill_on_drop: false }`
[INFO] [stdout] e632509a58525e7dba900853ed66f9c24465cac2322b8d6af9ab0b741c0dee22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 22a884f2d9c5eb46d443f63bf8c2f18544d5660dada102909417d66bf27b635f
[INFO] running `Command { std: "docker" "start" "-a" "22a884f2d9c5eb46d443f63bf8c2f18544d5660dada102909417d66bf27b635f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling rustybox v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking c2rust-asm-casts v0.1.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling c2rust-bitfields-derive v0.2.0
[INFO] [stderr]     Checking c2rust-bitfields v0.3.0
[INFO] [stderr]  Documenting rustybox v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` fn uses type `unsafe fn(*const libc::unix::linux_like::linux::sockaddr_nl, *mut libc::unix::linux_like::linux::gnu::nlmsghdr, *mut core::ffi::c_void) -> i32`, which is not FFI-safe
[INFO] [stdout]    --> networking/libiproute/libnetlink.rs:326:15
[INFO] [stdout]     |
[INFO] [stdout] 326 |     mut filter: Option<
[INFO] [stdout]     |  _______________^
[INFO] [stdout] 327 | |     unsafe fn(_: *const sockaddr_nl, _: *mut nlmsghdr, _: *mut libc::c_void) -> libc::c_int,
[INFO] [stdout] 328 | |   >,
[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: `extern` fn uses type `unsafe fn(i32, *mut *mut i8) -> i32`, which is not FFI-safe
[INFO] [stdout]      --> shell/hush.rs:11314:25
[INFO] [stdout]       |
[INFO] [stdout] 11314 |   mut applet_main_func: unsafe fn(_: libc::c_int, _: *mut *mut libc::c_char) -> libc::c_int,
[INFO] [stdout]       |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]       |
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.17s
[INFO] running `Command { std: "docker" "inspect" "22a884f2d9c5eb46d443f63bf8c2f18544d5660dada102909417d66bf27b635f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a884f2d9c5eb46d443f63bf8c2f18544d5660dada102909417d66bf27b635f", kill_on_drop: false }`
[INFO] [stdout] 22a884f2d9c5eb46d443f63bf8c2f18544d5660dada102909417d66bf27b635f