[INFO] fetching crate solti-prometheus 0.0.1...
[INFO] testing solti-prometheus-0.0.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate solti-prometheus 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate solti-prometheus 0.0.1
[INFO] finished tweaking crates.io crate solti-prometheus 0.0.1
[INFO] tweaked toml for crates.io crate solti-prometheus 0.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate solti-prometheus 0.0.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate solti-prometheus 0.0.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d2d2308c826121cd1b286f8e481b90a9d453d04da41d419756269ba4b4833a4
[INFO] running `Command { std: "docker" "start" "-a" "2d2d2308c826121cd1b286f8e481b90a9d453d04da41d419756269ba4b4833a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d2d2308c826121cd1b286f8e481b90a9d453d04da41d419756269ba4b4833a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d2d2308c826121cd1b286f8e481b90a9d453d04da41d419756269ba4b4833a4", kill_on_drop: false }`
[INFO] [stdout] 2d2d2308c826121cd1b286f8e481b90a9d453d04da41d419756269ba4b4833a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2700787057ab2a4aead0ed07521f4a0396eb2ecff34ea14e88dcb9407ff5854
[INFO] running `Command { std: "docker" "start" "-a" "b2700787057ab2a4aead0ed07521f4a0396eb2ecff34ea14e88dcb9407ff5854", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling prometheus v0.14.0
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling protobuf-support v3.7.2
[INFO] [stderr]    Compiling solti-model v0.0.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling taskvisor v0.1.2
[INFO] [stderr]    Compiling solti-runner v0.0.1
[INFO] [stderr]    Compiling solti-prometheus v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.48s
[INFO] running `Command { std: "docker" "inspect" "b2700787057ab2a4aead0ed07521f4a0396eb2ecff34ea14e88dcb9407ff5854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2700787057ab2a4aead0ed07521f4a0396eb2ecff34ea14e88dcb9407ff5854", kill_on_drop: false }`
[INFO] [stdout] b2700787057ab2a4aead0ed07521f4a0396eb2ecff34ea14e88dcb9407ff5854
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbc71a928fb1e13d349a9779ba956e856445ab7b4edcae04c22a8801f62e83f5
[INFO] running `Command { std: "docker" "start" "-a" "dbc71a928fb1e13d349a9779ba956e856445ab7b4edcae04c22a8801f62e83f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling solti-prometheus v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "dbc71a928fb1e13d349a9779ba956e856445ab7b4edcae04c22a8801f62e83f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc71a928fb1e13d349a9779ba956e856445ab7b4edcae04c22a8801f62e83f5", kill_on_drop: false }`
[INFO] [stdout] dbc71a928fb1e13d349a9779ba956e856445ab7b4edcae04c22a8801f62e83f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 327a18ca580c8cefffbfa6bfa47b49875f603286599f847b9267871db4c7b4d2
[INFO] running `Command { std: "docker" "start" "-a" "327a18ca580c8cefffbfa6bfa47b49875f603286599f847b9267871db4c7b4d2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/solti_prometheus-89d49c32ab0e3466)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test subscriber::tests::actor_exhausted_increments_terminal ... ok
[INFO] [stdout] test backend::tests::record_runner_error_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::backoff_failure_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::backoff_success_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::controller_rejected_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::controller_submitted_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::first_attempt_is_not_a_restart ... ok
[INFO] [stdout] test subscriber::tests::in_flight_does_not_go_negative ... ok
[INFO] [stdout] test subscriber::tests::shared_registry_with_backend ... ok
[INFO] [stdout] test subscriber::tests::subscriber_overflow_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::second_attempt_is_a_restart ... ok
[INFO] [stdout] test subscriber::tests::task_stopped_decrements_in_flight ... ok
[INFO] [stdout] test backend::tests::can_create_prometheus_metrics ... ok
[INFO] [stdout] test backend::tests::can_use_custom_registry ... ok
[INFO] [stdout] test backend::tests::record_task_completed_increments_counter_and_histogram ... ok
[INFO] [stdout] test subscriber::tests::timeout_hit_increments_counter ... ok
[INFO] [stdout] test backend::tests::record_task_started_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::subscriber_panicked_increments_counter ... ok
[INFO] [stdout] test subscriber::tests::task_starting_increments_in_flight ... ok
[INFO] [stderr]    Doc-tests solti_prometheus
[INFO] [stdout] test subscriber::tests::actor_dead_increments_terminal ... ok
[INFO] [stdout] test subscriber::tests::task_failed_decrements_in_flight ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "327a18ca580c8cefffbfa6bfa47b49875f603286599f847b9267871db4c7b4d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327a18ca580c8cefffbfa6bfa47b49875f603286599f847b9267871db4c7b4d2", kill_on_drop: false }`
[INFO] [stdout] 327a18ca580c8cefffbfa6bfa47b49875f603286599f847b9267871db4c7b4d2
