[INFO] fetching crate metrics-exporter-prometheus 0.17.2... [INFO] testing metrics-exporter-prometheus-0.17.2 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate metrics-exporter-prometheus 0.17.2 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate metrics-exporter-prometheus 0.17.2 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate metrics-exporter-prometheus 0.17.2 [INFO] tweaked toml for crates.io crate metrics-exporter-prometheus 0.17.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.17.2 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate metrics-exporter-prometheus 0.17.2 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] be40c9c3d93d2a87f772b2d9334aae5d46138781e9a846917df33df53a424686 [INFO] running `Command { std: "docker" "start" "-a" "be40c9c3d93d2a87f772b2d9334aae5d46138781e9a846917df33df53a424686", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "be40c9c3d93d2a87f772b2d9334aae5d46138781e9a846917df33df53a424686", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be40c9c3d93d2a87f772b2d9334aae5d46138781e9a846917df33df53a424686", kill_on_drop: false }` [INFO] [stdout] be40c9c3d93d2a87f772b2d9334aae5d46138781e9a846917df33df53a424686 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 598d359c15c98f33f505acc6349aa95b758c60c6532d4041ebc2a5987d4e71b3 [INFO] running `Command { std: "docker" "start" "-a" "598d359c15c98f33f505acc6349aa95b758c60c6532d4041ebc2a5987d4e71b3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.171 [INFO] [stderr] Compiling fs_extra v1.3.0 [INFO] [stderr] Compiling aws-lc-rs v1.13.0 [INFO] [stderr] Compiling getrandom v0.3.2 [INFO] [stderr] Compiling zerocopy v0.8.24 [INFO] [stderr] Compiling proc-macro2 v1.0.94 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling hashbrown v0.15.2 [INFO] [stderr] Compiling tracing-core v0.1.33 [INFO] [stderr] Compiling rustls-pki-types v1.11.0 [INFO] [stderr] Compiling zeroize v1.8.1 [INFO] [stderr] Compiling rustls v0.23.26 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling zerocopy v0.7.35 [INFO] [stderr] Compiling subtle v2.6.1 [INFO] [stderr] Compiling bitflags v2.9.0 [INFO] [stderr] Compiling smallvec v1.15.0 [INFO] [stderr] Compiling thiserror v2.0.12 [INFO] [stderr] Compiling sketches-ddsketch v0.3.0 [INFO] [stderr] Compiling raw-cpuid v11.5.0 [INFO] [stderr] Compiling ipnet v2.11.0 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Compiling rustls-native-certs v0.8.1 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling metrics v0.24.2 [INFO] [stderr] Compiling indexmap v2.9.0 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.100 [INFO] [stderr] Compiling jobserver v0.1.33 [INFO] [stderr] Compiling mio v1.0.3 [INFO] [stderr] Compiling socket2 v0.5.9 [INFO] [stderr] Compiling rand_core v0.9.3 [INFO] [stderr] Compiling rand_xoshiro v0.7.0 [INFO] [stderr] Compiling cc v1.2.19 [INFO] [stderr] Compiling tokio v1.44.2 [INFO] [stderr] Compiling quanta v0.12.5 [INFO] [stderr] Compiling cmake v0.1.54 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling aws-lc-sys v0.28.0 [INFO] [stderr] Compiling rand v0.9.0 [INFO] [stderr] Compiling metrics-util v0.20.0 [INFO] [stderr] Compiling thiserror-impl v2.0.12 [INFO] [stderr] Compiling tokio-util v0.7.14 [INFO] [stderr] Compiling h2 v0.4.8 [INFO] [stderr] Compiling hyper v1.6.0 [INFO] [stderr] Compiling hyper-util v0.1.11 [INFO] [stderr] Compiling rustls-webpki v0.103.1 [INFO] [stderr] Compiling tokio-rustls v0.26.2 [INFO] [stderr] Compiling hyper-rustls v0.27.5 [INFO] [stderr] Compiling metrics-exporter-prometheus v0.17.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.56s [INFO] running `Command { std: "docker" "inspect" "598d359c15c98f33f505acc6349aa95b758c60c6532d4041ebc2a5987d4e71b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "598d359c15c98f33f505acc6349aa95b758c60c6532d4041ebc2a5987d4e71b3", kill_on_drop: false }` [INFO] [stdout] 598d359c15c98f33f505acc6349aa95b758c60c6532d4041ebc2a5987d4e71b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2d120ee8c771d1dbea2511cc2568ad47d163daeeabd6690503956ba2cb98e798 [INFO] running `Command { std: "docker" "start" "-a" "2d120ee8c771d1dbea2511cc2568ad47d163daeeabd6690503956ba2cb98e798", kill_on_drop: false }` [INFO] [stderr] Compiling getrandom v0.2.15 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling thread_local v1.1.8 [INFO] [stderr] Compiling unarray v0.1.4 [INFO] [stderr] Compiling tracing-subscriber v0.3.19 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand_xorshift v0.3.0 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling proptest v1.6.0 [INFO] [stderr] Compiling metrics-exporter-prometheus v0.17.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 13.18s [INFO] running `Command { std: "docker" "inspect" "2d120ee8c771d1dbea2511cc2568ad47d163daeeabd6690503956ba2cb98e798", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d120ee8c771d1dbea2511cc2568ad47d163daeeabd6690503956ba2cb98e798", kill_on_drop: false }` [INFO] [stdout] 2d120ee8c771d1dbea2511cc2568ad47d163daeeabd6690503956ba2cb98e798 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 9910b68791bccec5fdbc7e88463342bee404bd335d12bb5af3210adb0e238904 [INFO] running `Command { std: "docker" "start" "-a" "9910b68791bccec5fdbc7e88463342bee404bd335d12bb5af3210adb0e238904", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metrics_exporter_prometheus-5732aa8da8e6a0d1) [INFO] [stdout] [INFO] [stdout] running 26 tests [INFO] [stdout] test distribution::tests::add_new_head ... ok [INFO] [stdout] test distribution::tests::add_value_ts_before_first_bucket ... ok [INFO] [stdout] test distribution::tests::add_first_value ... ok [INFO] [stdout] test distribution::tests::new_rolling_summary ... ok [INFO] [stdout] test distribution::tests::snapshot ... ok [INFO] [stdout] test distribution::tests::truncate_old_buckets ... ok [INFO] [stdout] test exporter::builder::tests::test_idle_timeout_catches_delayed_idle ... ok [INFO] [stdout] test exporter::builder::tests::test_idle_timeout_all ... ok [INFO] [stdout] test exporter::builder::tests::test_global_labels ... ok [INFO] [stdout] test exporter::builder::tests::test_buckets ... ok [INFO] [stdout] test exporter::builder::tests::test_global_labels_overrides ... ok [INFO] [stdout] test distribution::tests::empty_snapshot ... ok [INFO] [stdout] test exporter::builder::tests::test_idle_timeout_staggered_distributions ... ok [INFO] [stdout] test formatting::tests::test_sanitize_label_key_known_cases ... ok [INFO] [stdout] test formatting::tests::test_sanitize_label_value_known_cases ... ok [INFO] [stdout] test exporter::builder::tests::test_render ... ok [INFO] [stdout] test exporter::builder::tests::test_sanitized_render ... ok [INFO] [stdout] test exporter::push_gateway::tests::test_basic_auth ... ok [INFO] [stdout] test exporter::builder::tests::test_idle_timeout_doesnt_remove_recents ... ok [INFO] [stdout] test formatting::tests::test_sanitize_description_known_cases ... ok [INFO] [stdout] test formatting::tests::test_sanitize_metric_name_known_cases ... ok [INFO] [stdout] test exporter::builder::tests::test_idle_timeout_partial ... ok [INFO] [stdout] test formatting::tests::test_sanitize_label_value ... ok [INFO] [stdout] test formatting::tests::test_sanitize_description ... ok [INFO] [stdout] test formatting::tests::test_sanitize_metric_name ... ok [INFO] [stdout] test formatting::tests::test_sanitize_label_key ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s [INFO] [stdout] [INFO] [stderr] Running tests/http_listener_integration_test.rs (/opt/rustwide/target/debug/deps/http_listener_integration_test-1d714c59a98cd7a0) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Doc-tests metrics_exporter_prometheus [INFO] [stdout] test http_listener_test::test_http_listener ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 40) - compile ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "9910b68791bccec5fdbc7e88463342bee404bd335d12bb5af3210adb0e238904", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9910b68791bccec5fdbc7e88463342bee404bd335d12bb5af3210adb0e238904", kill_on_drop: false }` [INFO] [stdout] 9910b68791bccec5fdbc7e88463342bee404bd335d12bb5af3210adb0e238904