[INFO] fetching crate breakpoint 0.1.0...
[INFO] documenting breakpoint-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate breakpoint 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate breakpoint 0.1.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate breakpoint 0.1.0
[INFO] finished tweaking crates.io crate breakpoint 0.1.0
[INFO] tweaked toml for crates.io crate breakpoint 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.61.0" "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] d58db55c7cab93577f756face471994cb081ef1da121e52df6c20a482e0adb82
[INFO] running `Command { std: "docker" "start" "-a" "d58db55c7cab93577f756face471994cb081ef1da121e52df6c20a482e0adb82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d58db55c7cab93577f756face471994cb081ef1da121e52df6c20a482e0adb82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d58db55c7cab93577f756face471994cb081ef1da121e52df6c20a482e0adb82", kill_on_drop: false }`
[INFO] [stdout] d58db55c7cab93577f756face471994cb081ef1da121e52df6c20a482e0adb82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.61.0" "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] 3acf5b7a353b806f3050a8e758ede4e029ffa6d272f6adfc0828bb43727fbfb9
[INFO] running `Command { std: "docker" "start" "-a" "3acf5b7a353b806f3050a8e758ede4e029ffa6d272f6adfc0828bb43727fbfb9", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] [stderr]  Documenting breakpoint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0517]: attribute should be applied to a struct, enum, or union
[INFO] [stdout]    --> src/lib.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     #[repr(C)]
[INFO] [stdout]     |            ^
[INFO] [stdout] 130 |     type sig_t = extern "C" fn(i32);
[INFO] [stdout]     |     -------------------------------- not a struct, enum, or union
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 96 | #![feature(asm)]
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0517, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0517`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `breakpoint`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name breakpoint src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7765ba4556e91062 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3acf5b7a353b806f3050a8e758ede4e029ffa6d272f6adfc0828bb43727fbfb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3acf5b7a353b806f3050a8e758ede4e029ffa6d272f6adfc0828bb43727fbfb9", kill_on_drop: false }`
[INFO] [stdout] 3acf5b7a353b806f3050a8e758ede4e029ffa6d272f6adfc0828bb43727fbfb9