[INFO] updating cached repository https://github.com/wezm/c2rust-dwm
[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] d96cdc5238c8db83a274a7fe0fdb18e0237377fd
[INFO] documenting wezm/c2rust-dwm against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwezm%2Fc2rust-dwm" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wezm/c2rust-dwm 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/wezm/c2rust-dwm
[INFO] finished tweaking git repo https://github.com/wezm/c2rust-dwm
[INFO] tweaked toml for git repo https://github.com/wezm/c2rust-dwm written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/wezm/c2rust-dwm 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 9cbb727e749fa69db6dd7bc38ef5ce185fb52b6403625cdcfadbeaae24f9a37b
[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" "9cbb727e749fa69db6dd7bc38ef5ce185fb52b6403625cdcfadbeaae24f9a37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cbb727e749fa69db6dd7bc38ef5ce185fb52b6403625cdcfadbeaae24f9a37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cbb727e749fa69db6dd7bc38ef5ce185fb52b6403625cdcfadbeaae24f9a37b", kill_on_drop: false }`
[INFO] [stdout] 9cbb727e749fa69db6dd7bc38ef5ce185fb52b6403625cdcfadbeaae24f9a37b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 5fcb7b559c1329d11456daf8f94c47cf43bf6df58f742badf1e8adf38eb63caa
[INFO] running `Command { std: "docker" "start" "-a" "5fcb7b559c1329d11456daf8f94c47cf43bf6df58f742badf1e8adf38eb63caa", kill_on_drop: false }`
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling c2rust v6.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> build.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         writeln!(write, "cargo:rustc-link-lib={}", lib);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting c2rust v6.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `XSync` redeclared with a different signature
[INFO] [stdout]    --> drw.rs:58:5
[INFO] [stdout]     |
[INFO] [stdout] 58  |     fn XSync(_: *mut Display, _: libc::c_int) -> libc::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]     | 
[INFO] [stdout]    ::: dwm.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn XSync(_: *mut Display, _: libc::c_int) -> libc::c_int;
[INFO] [stdout]     |     --------------------------------------------------------- `XSync` previously declared here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(clashing_extern_decl)]` on by default
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(*mut dwm::_XDisplay, i32) -> i32`
[INFO] [stdout]                found `unsafe extern "C" fn(*mut drw::_XDisplay, i32) -> i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.15s
[INFO] running `Command { std: "docker" "inspect" "5fcb7b559c1329d11456daf8f94c47cf43bf6df58f742badf1e8adf38eb63caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fcb7b559c1329d11456daf8f94c47cf43bf6df58f742badf1e8adf38eb63caa", kill_on_drop: false }`
[INFO] [stdout] 5fcb7b559c1329d11456daf8f94c47cf43bf6df58f742badf1e8adf38eb63caa