[INFO] fetching crate breakpoint 0.1.0...
[INFO] testing breakpoint-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate breakpoint 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate breakpoint 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", 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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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] 64e2d050f5ea9b38d74e2270128e80996ed4fddd2090d72d9d8461030ab9535e
[INFO] running `Command { std: "docker" "start" "-a" "64e2d050f5ea9b38d74e2270128e80996ed4fddd2090d72d9d8461030ab9535e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64e2d050f5ea9b38d74e2270128e80996ed4fddd2090d72d9d8461030ab9535e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64e2d050f5ea9b38d74e2270128e80996ed4fddd2090d72d9d8461030ab9535e", kill_on_drop: false }`
[INFO] [stdout] 64e2d050f5ea9b38d74e2270128e80996ed4fddd2090d72d9d8461030ab9535e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTFLAGS=--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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eb93bc82c0c3acd67ea96d9a75cc5657b80a6ded9d1acda653806532f6275f0
[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" "3eb93bc82c0c3acd67ea96d9a75cc5657b80a6ded9d1acda653806532f6275f0", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.tags
[INFO] [stderr]    Compiling breakpoint v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0517]: attribute should be applied to 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: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0517`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `breakpoint`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "3eb93bc82c0c3acd67ea96d9a75cc5657b80a6ded9d1acda653806532f6275f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb93bc82c0c3acd67ea96d9a75cc5657b80a6ded9d1acda653806532f6275f0", kill_on_drop: false }`
[INFO] [stdout] 3eb93bc82c0c3acd67ea96d9a75cc5657b80a6ded9d1acda653806532f6275f0