[INFO] fetching crate mixtrics 0.2.1...
[INFO] testing mixtrics-0.2.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mixtrics 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate mixtrics 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mixtrics 0.2.1
[INFO] tweaked toml for crates.io crate mixtrics 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mixtrics 0.2.1 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 mixtrics 0.2.1 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prometheus-client v0.24.0
[INFO] [stderr]   Downloaded prometheus-client-derive-encode v0.4.2
[INFO] [stderr]   Downloaded wasi v0.14.5+wasi-0.2.4
[INFO] [stderr]   Downloaded prometheus-client v0.23.1
[INFO] [stderr]   Downloaded prometheus-client v0.22.3
[INFO] [stderr]   Downloaded opentelemetry v0.26.0
[INFO] [stderr]   Downloaded prometheus v0.14.0
[INFO] [stderr]   Downloaded wasip2 v1.0.0+wasi-0.2.4
[INFO] [stderr]   Downloaded opentelemetry v0.27.1
[INFO] [stderr]   Downloaded opentelemetry v0.28.0
[INFO] [stderr]   Downloaded opentelemetry v0.29.1
[INFO] [stderr]   Downloaded opentelemetry v0.30.0
[INFO] [stderr]   Downloaded wit-bindgen v0.45.1
[INFO] [stderr]   Downloaded dtoa v1.0.10
[INFO] [stderr]   Downloaded prometheus-client-derive-encode v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4d591557322211980b2d5839520a0d33ed3fce0c1ff7398855a4bb6c6aa467d9
[INFO] running `Command { std: "docker" "start" "-a" "4d591557322211980b2d5839520a0d33ed3fce0c1ff7398855a4bb6c6aa467d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d591557322211980b2d5839520a0d33ed3fce0c1ff7398855a4bb6c6aa467d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d591557322211980b2d5839520a0d33ed3fce0c1ff7398855a4bb6c6aa467d9", kill_on_drop: false }`
[INFO] [stdout] 4d591557322211980b2d5839520a0d33ed3fce0c1ff7398855a4bb6c6aa467d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a6586f916eb4a3837508e8bbc023865d784b05ea2589707819e399604394cc5b
[INFO] running `Command { std: "docker" "start" "-a" "a6586f916eb4a3837508e8bbc023865d784b05ea2589707819e399604394cc5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling mixtrics v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "a6586f916eb4a3837508e8bbc023865d784b05ea2589707819e399604394cc5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6586f916eb4a3837508e8bbc023865d784b05ea2589707819e399604394cc5b", kill_on_drop: false }`
[INFO] [stdout] a6586f916eb4a3837508e8bbc023865d784b05ea2589707819e399604394cc5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49d73f981102e8e9b0638157962bc528aad2519f1f754bc8e7b46296e3f47b9c
[INFO] running `Command { std: "docker" "start" "-a" "49d73f981102e8e9b0638157962bc528aad2519f1f754bc8e7b46296e3f47b9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling tempfile v3.22.0
[INFO] [stderr]    Compiling mixtrics v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `mixtrics::registry::prometheus_0_14`
[INFO] [stdout]   --> examples/basic.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     registry::prometheus_0_14::PrometheusMetricsRegistry,
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^ could not find `prometheus_0_14` in `registry`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/registry/mod.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[cfg(feature = "prometheus_0_14")]
[INFO] [stdout]    |       --------------------------- the item is gated behind the `prometheus_0_14` feature
[INFO] [stdout] 30 | #[cfg_attr(docsrs, doc(cfg(feature = "prometheus_0_14")))]
[INFO] [stdout] 31 | pub mod prometheus_0_14;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `prometheus_0_14`
[INFO] [stdout]    --> examples/basic.rs:100:60
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let registry = Box::new(PrometheusMetricsRegistry::new(prometheus_0_14::Registry::new())) as _;
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `prometheus_0_14`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `prometheus_0_14`, use `cargo add prometheus_0_14` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mixtrics` (example "basic") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "49d73f981102e8e9b0638157962bc528aad2519f1f754bc8e7b46296e3f47b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d73f981102e8e9b0638157962bc528aad2519f1f754bc8e7b46296e3f47b9c", kill_on_drop: false }`
[INFO] [stdout] 49d73f981102e8e9b0638157962bc528aad2519f1f754bc8e7b46296e3f47b9c