[INFO] fetching crate opentelemetry-prometheus-xx 0.30.0...
[INFO] testing opentelemetry-prometheus-xx-0.30.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate opentelemetry-prometheus-xx 0.30.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate opentelemetry-prometheus-xx 0.30.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate opentelemetry-prometheus-xx 0.30.0
[INFO] tweaked toml for crates.io crate opentelemetry-prometheus-xx 0.30.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate opentelemetry-prometheus-xx 0.30.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate opentelemetry-prometheus-xx 0.30.0 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ace3ba0b8a802a1d51b411eb05208d4f3b045b0dad3303dec9465fa0dc7ad72
[INFO] running `Command { std: "docker" "start" "-a" "4ace3ba0b8a802a1d51b411eb05208d4f3b045b0dad3303dec9465fa0dc7ad72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ace3ba0b8a802a1d51b411eb05208d4f3b045b0dad3303dec9465fa0dc7ad72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ace3ba0b8a802a1d51b411eb05208d4f3b045b0dad3303dec9465fa0dc7ad72", kill_on_drop: false }`
[INFO] [stdout] 4ace3ba0b8a802a1d51b411eb05208d4f3b045b0dad3303dec9465fa0dc7ad72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4d4076cdc40dddb6419a844d4878ab2fb1d2ce69c163f5837b1b501da776ed6
[INFO] running `Command { std: "docker" "start" "-a" "a4d4076cdc40dddb6419a844d4878ab2fb1d2ce69c163f5837b1b501da776ed6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling prometheus v0.14.0
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling opentelemetry v0.30.0
[INFO] [stderr]    Compiling protobuf-support v3.7.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling opentelemetry_sdk v0.30.0
[INFO] [stderr]    Compiling opentelemetry-prometheus-xx v0.30.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.42s
[INFO] running `Command { std: "docker" "inspect" "a4d4076cdc40dddb6419a844d4878ab2fb1d2ce69c163f5837b1b501da776ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d4076cdc40dddb6419a844d4878ab2fb1d2ce69c163f5837b1b501da776ed6", kill_on_drop: false }`
[INFO] [stdout] a4d4076cdc40dddb6419a844d4878ab2fb1d2ce69c163f5837b1b501da776ed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fef3a77273b8be9a953ba749a7db1634bb35d0529cad07580de141d65cd9a592
[INFO] running `Command { std: "docker" "start" "-a" "fef3a77273b8be9a953ba749a7db1634bb35d0529cad07580de141d65cd9a592", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling opentelemetry-semantic-conventions v0.30.0
[INFO] [stderr]    Compiling opentelemetry v0.30.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling indexmap v2.11.1
[INFO] [stderr]    Compiling prometheus v0.14.0
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling opentelemetry_sdk v0.30.0
[INFO] [stderr]    Compiling opentelemetry-prometheus-xx v0.30.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling h2 v0.4.12
[INFO] [stderr]    Compiling hyper v1.7.0
[INFO] [stderr]    Compiling hyper-util v0.1.16
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 21.77s
[INFO] running `Command { std: "docker" "inspect" "fef3a77273b8be9a953ba749a7db1634bb35d0529cad07580de141d65cd9a592", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fef3a77273b8be9a953ba749a7db1634bb35d0529cad07580de141d65cd9a592", kill_on_drop: false }`
[INFO] [stdout] fef3a77273b8be9a953ba749a7db1634bb35d0529cad07580de141d65cd9a592
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9065d0556eb6235a29e5fc9a4a7cc17423c0f503ba8534a78fe472deac03c1b9
[INFO] running `Command { std: "docker" "start" "-a" "9065d0556eb6235a29e5fc9a4a7cc17423c0f503ba8534a78fe472deac03c1b9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test utils::tests::name_sanitization ... ok
[INFO] [stdout] test utils::tests::test_get_unit_suffixes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test prometheus_exporter_integration ... ignored, https://github.com/open-telemetry/opentelemetry-rust/pull/2224
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/opentelemetry_prometheus_xx-fdbc8d283b7907c6)
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-807ef988f92802eb)
[INFO] [stdout] test multiple_scopes ... ok
[INFO] [stdout] test duplicate_metrics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests opentelemetry_prometheus_xx
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.66s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9065d0556eb6235a29e5fc9a4a7cc17423c0f503ba8534a78fe472deac03c1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9065d0556eb6235a29e5fc9a4a7cc17423c0f503ba8534a78fe472deac03c1b9", kill_on_drop: false }`
[INFO] [stdout] 9065d0556eb6235a29e5fc9a4a7cc17423c0f503ba8534a78fe472deac03c1b9