[INFO] fetching crate prost 0.10.3...
[INFO] documenting prost-0.10.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate prost 0.10.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate prost 0.10.3 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 prost 0.10.3
[INFO] finished tweaking crates.io crate prost 0.10.3
[INFO] tweaked toml for crates.io crate prost 0.10.3 written to /workspace/builds/worker-12/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 4fcd6af9d9725f22c2c0c5eb23dba8c120aeb0815d070184a2d27aea090772b4
[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" "4fcd6af9d9725f22c2c0c5eb23dba8c120aeb0815d070184a2d27aea090772b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fcd6af9d9725f22c2c0c5eb23dba8c120aeb0815d070184a2d27aea090772b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fcd6af9d9725f22c2c0c5eb23dba8c120aeb0815d070184a2d27aea090772b4", kill_on_drop: false }`
[INFO] [stdout] 4fcd6af9d9725f22c2c0c5eb23dba8c120aeb0815d070184a2d27aea090772b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] f2872cf91d0293a0cc8fe2b7d6290a60de482a9a3284838f4769980a2b4fc7d1
[INFO] running `Command { std: "docker" "start" "-a" "f2872cf91d0293a0cc8fe2b7d6290a60de482a9a3284838f4769980a2b4fc7d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling prost-derive v0.10.1
[INFO] [stderr]  Documenting prost v0.10.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.28s
[INFO] running `Command { std: "docker" "inspect" "f2872cf91d0293a0cc8fe2b7d6290a60de482a9a3284838f4769980a2b4fc7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2872cf91d0293a0cc8fe2b7d6290a60de482a9a3284838f4769980a2b4fc7d1", kill_on_drop: false }`
[INFO] [stdout] f2872cf91d0293a0cc8fe2b7d6290a60de482a9a3284838f4769980a2b4fc7d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] d6308dcb78bd0d4066526e043dc6cce0adb946300fd1945470302d40867b4d7f
[INFO] running `Command { std: "docker" "start" "-a" "d6308dcb78bd0d4066526e043dc6cce0adb946300fd1945470302d40867b4d7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling prost-derive v0.10.1
[INFO] [stderr]  Documenting prost v0.10.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.16s
[INFO] running `Command { std: "docker" "inspect" "d6308dcb78bd0d4066526e043dc6cce0adb946300fd1945470302d40867b4d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6308dcb78bd0d4066526e043dc6cce0adb946300fd1945470302d40867b4d7f", kill_on_drop: false }`
[INFO] [stdout] d6308dcb78bd0d4066526e043dc6cce0adb946300fd1945470302d40867b4d7f