[INFO] fetching crate prometheus-tokio 0.2.0...
[INFO] testing prometheus-tokio-0.2.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate prometheus-tokio 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate prometheus-tokio 0.2.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v2.0.0
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.11
[INFO] [stderr]   Downloaded matchit v0.7.0
[INFO] [stderr]   Downloaded async-trait v0.1.68
[INFO] [stderr]   Downloaded proc-macro2 v1.0.54
[INFO] [stderr]   Downloaded axum-core v0.3.3
[INFO] [stderr]   Downloaded serde v1.0.159
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded axum v0.6.12
[INFO] [stderr]   Downloaded syn v2.0.12
[INFO] [stderr]   Downloaded hyper v0.14.25
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.16
[INFO] [stderr]   Downloaded tokio v1.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4536122a25a71825e282adf492ddc943a7e6d10150e1f50560e8aeae9c1558e
[INFO] running `Command { std: "docker" "start" "-a" "e4536122a25a71825e282adf492ddc943a7e6d10150e1f50560e8aeae9c1558e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4536122a25a71825e282adf492ddc943a7e6d10150e1f50560e8aeae9c1558e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4536122a25a71825e282adf492ddc943a7e6d10150e1f50560e8aeae9c1558e", kill_on_drop: false }`
[INFO] [stdout] e4536122a25a71825e282adf492ddc943a7e6d10150e1f50560e8aeae9c1558e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a380afb48868113cd6b4f850d32403716dea918b21c145084b6d52552b191b7
[INFO] running `Command { std: "docker" "start" "-a" "3a380afb48868113cd6b4f850d32403716dea918b21c145084b6d52552b191b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[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 tracing-core v0.1.30
[INFO] [stderr]    Compiling syn v2.0.12
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling 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] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.27.0/src/runtime/mod.rs:247:26
[INFO] [stdout]     |
[INFO] [stdout] 245 | /     cfg_metrics! {
[INFO] [stdout] 246 | |         mod metrics;
[INFO] [stdout] 247 | |         pub use metrics::RuntimeMetrics;
[INFO] [stdout]     | |                          ^^^^^^^^^^^^^^
[INFO] [stdout] ...   |
[INFO] [stdout] 254 | |     }
[INFO] [stdout]     | |_____- the item is gated here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `metrics` found for reference `&Handle` in the current scope
[INFO] [stdout]    --> src/lib.rs:252:30
[INFO] [stdout]     |
[INFO] [stdout] 252 |         let metrics = handle.metrics();
[INFO] [stdout]     |                              ^^^^^^^ method not found in `&Handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prometheus-tokio` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "3a380afb48868113cd6b4f850d32403716dea918b21c145084b6d52552b191b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a380afb48868113cd6b4f850d32403716dea918b21c145084b6d52552b191b7", kill_on_drop: false }`
[INFO] [stdout] 3a380afb48868113cd6b4f850d32403716dea918b21c145084b6d52552b191b7