[INFO] fetching crate netlib-sys 0.0.1...
[INFO] documenting netlib-sys-0.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate netlib-sys 0.0.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate netlib-sys 0.0.1 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 netlib-sys 0.0.1
[INFO] finished tweaking crates.io crate netlib-sys 0.0.1
[INFO] tweaked toml for crates.io crate netlib-sys 0.0.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f3364a4e41213e8981a905a33d338498f0d7fe6deb49e7655c715730d466d393
[INFO] running `Command { std: "docker" "start" "-a" "f3364a4e41213e8981a905a33d338498f0d7fe6deb49e7655c715730d466d393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3364a4e41213e8981a905a33d338498f0d7fe6deb49e7655c715730d466d393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3364a4e41213e8981a905a33d338498f0d7fe6deb49e7655c715730d466d393", kill_on_drop: false }`
[INFO] [stdout] f3364a4e41213e8981a905a33d338498f0d7fe6deb49e7655c715730d466d393
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dce1b020bf17c50466599633670feef5f0269d981e2a74d2f834a8fcfad380cf
[INFO] running `Command { std: "docker" "start" "-a" "dce1b020bf17c50466599633670feef5f0269d981e2a74d2f834a8fcfad380cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling netlib-sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting netlib-sys v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]  --> src/lib.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![experimental]
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `netlib-sys`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name netlib_sys src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6d1ff8cf2de0f962 -L dependency=/opt/rustwide/target/debug/deps --extern winapi=/opt/rustwide/target/debug/deps/libwinapi-91beaac353f9aba6.rmeta --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "dce1b020bf17c50466599633670feef5f0269d981e2a74d2f834a8fcfad380cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce1b020bf17c50466599633670feef5f0269d981e2a74d2f834a8fcfad380cf", kill_on_drop: false }`
[INFO] [stdout] dce1b020bf17c50466599633670feef5f0269d981e2a74d2f834a8fcfad380cf