[INFO] fetching crate flutter-engine 0.3.5...
[INFO] documenting flutter-engine-0.3.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate flutter-engine 0.3.5 into /workspace/builds/worker-114/source
[INFO] validating manifest of crates.io crate flutter-engine 0.3.5 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 flutter-engine 0.3.5
[INFO] finished tweaking crates.io crate flutter-engine 0.3.5
[INFO] tweaked toml for crates.io crate flutter-engine 0.3.5 written to /workspace/builds/worker-114/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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] [stdout] 2a324e8609f14f5a048d8b198e6022ca5273eac764e407bd1b9315f4207c1704
[INFO] running `Command { std: "docker" "start" "-a" "2a324e8609f14f5a048d8b198e6022ca5273eac764e407bd1b9315f4207c1704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a324e8609f14f5a048d8b198e6022ca5273eac764e407bd1b9315f4207c1704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a324e8609f14f5a048d8b198e6022ca5273eac764e407bd1b9315f4207c1704", kill_on_drop: false }`
[INFO] [stdout] 2a324e8609f14f5a048d8b198e6022ca5273eac764e407bd1b9315f4207c1704
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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] [stdout] 2ccbe18fcdb7eea3baaf47ccb3038455a6540dd6571370a9d4af91700af1e0fa
[INFO] running `Command { std: "docker" "start" "-a" "2ccbe18fcdb7eea3baaf47ccb3038455a6540dd6571370a9d4af91700af1e0fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling curl v0.4.43
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling podio v0.1.7
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling transformation-pipeline v0.1.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking unic-langid-impl v0.4.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]     Checking unic-locale-impl v0.4.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking priority-queue v0.6.0
[INFO] [stderr]     Checking unic-locale v0.4.2
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.73/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=b3a34eae63a32363 -C extra-filename=-b3a34eae63a32363 --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] running `Command { std: "docker" "inspect" "2ccbe18fcdb7eea3baaf47ccb3038455a6540dd6571370a9d4af91700af1e0fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ccbe18fcdb7eea3baaf47ccb3038455a6540dd6571370a9d4af91700af1e0fa", kill_on_drop: false }`
[INFO] [stdout] 2ccbe18fcdb7eea3baaf47ccb3038455a6540dd6571370a9d4af91700af1e0fa