[INFO] fetching crate prometheus-tokio 0.2.0...
[INFO] documenting prometheus-tokio-0.2.0 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate prometheus-tokio 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate prometheus-tokio 0.2.0 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate prometheus-tokio 0.2.0
[INFO] finished tweaking crates.io crate prometheus-tokio 0.2.0
[INFO] tweaked toml for crates.io crate prometheus-tokio 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate prometheus-tokio 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded axum-core v0.3.3
[INFO] [stderr]   Downloaded sync_wrapper v0.1.2
[INFO] [stderr]   Downloaded axum v0.6.12
[INFO] [stderr]   Downloaded prometheus v0.13.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb59eb8fa77854e9dc0d1610425d705ad08de297abb02d677b022bc39181ece1
[INFO] running `Command { std: "docker" "start" "-a" "fb59eb8fa77854e9dc0d1610425d705ad08de297abb02d677b022bc39181ece1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb59eb8fa77854e9dc0d1610425d705ad08de297abb02d677b022bc39181ece1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb59eb8fa77854e9dc0d1610425d705ad08de297abb02d677b022bc39181ece1", kill_on_drop: false }`
[INFO] [stdout] fb59eb8fa77854e9dc0d1610425d705ad08de297abb02d677b022bc39181ece1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da94bc5a06dda323ef5e4afb8d117bb6ab9b4a177fdf5ebf6705413a3f3b0c6a
[INFO] running `Command { std: "docker" "start" "-a" "da94bc5a06dda323ef5e4afb8d117bb6ab9b4a177fdf5ebf6705413a3f3b0c6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling prometheus v0.13.3
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v2.0.12
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]  Documenting prometheus-tokio v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::runtime::RuntimeMetrics`
[INFO] [stdout]   --> src/lib.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::runtime::{Handle, RuntimeMetrics};
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^ no `RuntimeMetrics` in `runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `prometheus-tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name prometheus_tokio src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=03d7f00db1c1e0fd -L dependency=/opt/rustwide/target/debug/deps --extern prometheus=/opt/rustwide/target/debug/deps/libprometheus-5c3f37843c93e420.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-ec3044ec262cef7d.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-9388f7114f4bafb3.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "da94bc5a06dda323ef5e4afb8d117bb6ab9b4a177fdf5ebf6705413a3f3b0c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da94bc5a06dda323ef5e4afb8d117bb6ab9b4a177fdf5ebf6705413a3f3b0c6a", kill_on_drop: false }`
[INFO] [stdout] da94bc5a06dda323ef5e4afb8d117bb6ab9b4a177fdf5ebf6705413a3f3b0c6a
