[INFO] fetching crate cxx-gen 0.7.68...
[INFO] documenting cxx-gen-0.7.68 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate cxx-gen 0.7.68 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate cxx-gen 0.7.68 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxx-gen 0.7.68
[INFO] finished tweaking crates.io crate cxx-gen 0.7.68
[INFO] tweaked toml for crates.io crate cxx-gen 0.7.68 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+beta-2022-05-20" "fetch" "--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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dda6287705203f61fee94ed781edf67a0ebda8040203cf3af9c9562e98f2441e
[INFO] running `Command { std: "docker" "start" "-a" "dda6287705203f61fee94ed781edf67a0ebda8040203cf3af9c9562e98f2441e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dda6287705203f61fee94ed781edf67a0ebda8040203cf3af9c9562e98f2441e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dda6287705203f61fee94ed781edf67a0ebda8040203cf3af9c9562e98f2441e", kill_on_drop: false }`
[INFO] [stdout] dda6287705203f61fee94ed781edf67a0ebda8040203cf3af9c9562e98f2441e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa0f192f8c8290a1a8fe5ba64d8c79678b986cdd61e493dbc7126038814ca603
[INFO] running `Command { std: "docker" "start" "-a" "aa0f192f8c8290a1a8fe5ba64d8c79678b986cdd61e493dbc7126038814ca603", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting cxx-gen v0.7.68 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.06s
[INFO] running `Command { std: "docker" "inspect" "aa0f192f8c8290a1a8fe5ba64d8c79678b986cdd61e493dbc7126038814ca603", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0f192f8c8290a1a8fe5ba64d8c79678b986cdd61e493dbc7126038814ca603", kill_on_drop: false }`
[INFO] [stdout] aa0f192f8c8290a1a8fe5ba64d8c79678b986cdd61e493dbc7126038814ca603
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 2309ed52b0bce0d604d86ff5ae509f0290a082e2575d3eb4ebaf4bcc8bf60444
[INFO] running `Command { std: "docker" "start" "-a" "2309ed52b0bce0d604d86ff5ae509f0290a082e2575d3eb4ebaf4bcc8bf60444", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting cxx-gen v0.7.68 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.80s
[INFO] running `Command { std: "docker" "inspect" "2309ed52b0bce0d604d86ff5ae509f0290a082e2575d3eb4ebaf4bcc8bf60444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2309ed52b0bce0d604d86ff5ae509f0290a082e2575d3eb4ebaf4bcc8bf60444", kill_on_drop: false }`
[INFO] [stdout] 2309ed52b0bce0d604d86ff5ae509f0290a082e2575d3eb4ebaf4bcc8bf60444