[INFO] fetching crate kipa 0.2.10...
[INFO] documenting kipa-0.2.10 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate kipa 0.2.10 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate kipa 0.2.10 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kipa 0.2.10
[INFO] finished tweaking crates.io crate kipa 0.2.10
[INFO] tweaked toml for crates.io crate kipa 0.2.10 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate kipa 0.2.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa0cb6cc9e2bb7b07bcba5cd15d82a2f70a6054536a3a25c75f04ef662f854a4
[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" "fa0cb6cc9e2bb7b07bcba5cd15d82a2f70a6054536a3a25c75f04ef662f854a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa0cb6cc9e2bb7b07bcba5cd15d82a2f70a6054536a3a25c75f04ef662f854a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa0cb6cc9e2bb7b07bcba5cd15d82a2f70a6054536a3a25c75f04ef662f854a4", kill_on_drop: false }`
[INFO] [stdout] fa0cb6cc9e2bb7b07bcba5cd15d82a2f70a6054536a3a25c75f04ef662f854a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6593474daf4a5b935e158d8d905db92572c4a77564e8653bd574bd5d66339b8
[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" "c6593474daf4a5b935e158d8d905db92572c4a77564e8653bd574bd5d66339b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling ucd-util v0.1.7
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling memsec v0.5.7
[INFO] [stderr]    Compiling pnet v0.25.0
[INFO] [stderr]     Checking periodic v0.1.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nettle-src v3.5.1-2
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking pnet_macros_support v0.25.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling protoc v2.10.1
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking slog-async v2.4.0
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking buffered-reader v0.13.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling protobuf-codegen v2.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling protoc-rust v2.10.1
[INFO] [stderr] error: could not compile `protobuf`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name protobuf /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protobuf-2.10.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=60e365865470df84 -C extra-filename=-60e365865470df84 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c6593474daf4a5b935e158d8d905db92572c4a77564e8653bd574bd5d66339b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6593474daf4a5b935e158d8d905db92572c4a77564e8653bd574bd5d66339b8", kill_on_drop: false }`
[INFO] [stdout] c6593474daf4a5b935e158d8d905db92572c4a77564e8653bd574bd5d66339b8