[INFO] fetching crate ruby-mri 0.0.1...
[INFO] documenting ruby-mri-0.0.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate ruby-mri 0.0.1 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate ruby-mri 0.0.1 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 ruby-mri 0.0.1
[INFO] finished tweaking crates.io crate ruby-mri 0.0.1
[INFO] tweaked toml for crates.io crate ruby-mri 0.0.1 written to /workspace/builds/worker-19/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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] d0754afdddaa5b610641f4e8c7d05ea1447f49c8dfe1870591fa66dc76d45ac5
[INFO] running `Command { std: "docker" "start" "-a" "d0754afdddaa5b610641f4e8c7d05ea1447f49c8dfe1870591fa66dc76d45ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0754afdddaa5b610641f4e8c7d05ea1447f49c8dfe1870591fa66dc76d45ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0754afdddaa5b610641f4e8c7d05ea1447f49c8dfe1870591fa66dc76d45ac5", kill_on_drop: false }`
[INFO] [stdout] d0754afdddaa5b610641f4e8c7d05ea1447f49c8dfe1870591fa66dc76d45ac5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 4b5d640efd779a327f0e4b039510dac6f32999179f7296153832d697639991ae
[INFO] running `Command { std: "docker" "start" "-a" "4b5d640efd779a327f0e4b039510dac6f32999179f7296153832d697639991ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ruby-mri v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ruby-mri v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.86s
[INFO] running `Command { std: "docker" "inspect" "4b5d640efd779a327f0e4b039510dac6f32999179f7296153832d697639991ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b5d640efd779a327f0e4b039510dac6f32999179f7296153832d697639991ae", kill_on_drop: false }`
[INFO] [stdout] 4b5d640efd779a327f0e4b039510dac6f32999179f7296153832d697639991ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] [stdout] ba1c918d34576674746ff009282b653ef0c90b2500888d9a3d71d6aa1c10bd6e
[INFO] running `Command { std: "docker" "start" "-a" "ba1c918d34576674746ff009282b653ef0c90b2500888d9a3d71d6aa1c10bd6e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling ruby-mri v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ruby-mri v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "ba1c918d34576674746ff009282b653ef0c90b2500888d9a3d71d6aa1c10bd6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba1c918d34576674746ff009282b653ef0c90b2500888d9a3d71d6aa1c10bd6e", kill_on_drop: false }`
[INFO] [stdout] ba1c918d34576674746ff009282b653ef0c90b2500888d9a3d71d6aa1c10bd6e