[INFO] fetching crate exonum-proto 1.0.0...
[INFO] documenting exonum-proto-1.0.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate exonum-proto 1.0.0 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate exonum-proto 1.0.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exonum-proto 1.0.0
[INFO] finished tweaking crates.io crate exonum-proto 1.0.0
[INFO] tweaked toml for crates.io crate exonum-proto 1.0.0 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dae77ebf79f13b198335643d94b3e9664bb6ec922049a40fbab961e7f72d628
[INFO] running `Command { std: "docker" "start" "-a" "1dae77ebf79f13b198335643d94b3e9664bb6ec922049a40fbab961e7f72d628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dae77ebf79f13b198335643d94b3e9664bb6ec922049a40fbab961e7f72d628", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dae77ebf79f13b198335643d94b3e9664bb6ec922049a40fbab961e7f72d628", kill_on_drop: false }`
[INFO] [stdout] 1dae77ebf79f13b198335643d94b3e9664bb6ec922049a40fbab961e7f72d628
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e697f48005d0ed06225fad34079af95c9804e5c310713a4ab0eff6499249ef45
[INFO] running `Command { std: "docker" "start" "-a" "e697f48005d0ed06225fad34079af95c9804e5c310713a4ab0eff6499249ef45", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling protobuf v2.25.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling which v4.2.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling protoc v2.25.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling exonum-derive v1.0.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking base64-serde v0.5.1
[INFO] [stderr]    Compiling protobuf-codegen v2.25.0
[INFO] [stderr]    Compiling protoc-rust v2.25.0
[INFO] [stderr]    Compiling exonum-build v1.0.1
[INFO] [stderr]    Compiling protobuf-convert v0.4.0
[INFO] [stderr]    Compiling exonum-proto v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting exonum-proto v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.67s
[INFO] running `Command { std: "docker" "inspect" "e697f48005d0ed06225fad34079af95c9804e5c310713a4ab0eff6499249ef45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e697f48005d0ed06225fad34079af95c9804e5c310713a4ab0eff6499249ef45", kill_on_drop: false }`
[INFO] [stdout] e697f48005d0ed06225fad34079af95c9804e5c310713a4ab0eff6499249ef45
