[INFO] fetching crate opentelemetry-prometheus-text-exporter 0.2.1...
[INFO] testing opentelemetry-prometheus-text-exporter-0.2.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate opentelemetry-prometheus-text-exporter 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate opentelemetry-prometheus-text-exporter 0.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate opentelemetry-prometheus-text-exporter 0.2.1
[INFO] tweaked toml for crates.io crate opentelemetry-prometheus-text-exporter 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate opentelemetry-prometheus-text-exporter 0.2.1 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-text-exporter 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" "+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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b959167608f9ddf8d2e047f37f146f365ad0c8d93ff1fc54ec0758bcc40d5bed
[INFO] running `Command { std: "docker" "start" "-a" "b959167608f9ddf8d2e047f37f146f365ad0c8d93ff1fc54ec0758bcc40d5bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b959167608f9ddf8d2e047f37f146f365ad0c8d93ff1fc54ec0758bcc40d5bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b959167608f9ddf8d2e047f37f146f365ad0c8d93ff1fc54ec0758bcc40d5bed", kill_on_drop: false }`
[INFO] [stdout] b959167608f9ddf8d2e047f37f146f365ad0c8d93ff1fc54ec0758bcc40d5bed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4f8fcbb6f65a9890d2b45adae76df398ad8994473898d5ffb8f8812d4ccf186e
[INFO] running `Command { std: "docker" "start" "-a" "4f8fcbb6f65a9890d2b45adae76df398ad8994473898d5ffb8f8812d4ccf186e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.98
[INFO] [stderr]    Compiling thiserror v2.0.14
[INFO] [stderr]    Compiling opentelemetry v0.31.0
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v2.0.14
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling opentelemetry_sdk v0.31.0
[INFO] [stderr]    Compiling opentelemetry-prometheus-text-exporter v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.62s
[INFO] running `Command { std: "docker" "inspect" "4f8fcbb6f65a9890d2b45adae76df398ad8994473898d5ffb8f8812d4ccf186e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f8fcbb6f65a9890d2b45adae76df398ad8994473898d5ffb8f8812d4ccf186e", kill_on_drop: false }`
[INFO] [stdout] 4f8fcbb6f65a9890d2b45adae76df398ad8994473898d5ffb8f8812d4ccf186e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b32e74d8e460f96786b6135d7c6c6d1e4701e1bb36078ec546aea767fc617288
[INFO] running `Command { std: "docker" "start" "-a" "b32e74d8e460f96786b6135d7c6c6d1e4701e1bb36078ec546aea767fc617288", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling thiserror v2.0.14
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling nix v0.29.0
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling bitflags v2.9.2
[INFO] [stderr]    Compiling statrs v0.18.0
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling clap_builder v4.5.44
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling prometheus v0.14.0
[INFO] [stderr]    Compiling codspeed-criterion-compat v3.0.5
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling opentelemetry_sdk v0.31.0
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling protobuf-support v3.7.2
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling opentelemetry-prometheus-text-exporter v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling clap v4.5.45
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling uuid v1.18.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling insta v1.43.1
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling codspeed v3.0.5
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling codspeed-criterion-compat-walltime v3.0.5
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 28.02s
[INFO] running `Command { std: "docker" "inspect" "b32e74d8e460f96786b6135d7c6c6d1e4701e1bb36078ec546aea767fc617288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b32e74d8e460f96786b6135d7c6c6d1e4701e1bb36078ec546aea767fc617288", kill_on_drop: false }`
[INFO] [stdout] b32e74d8e460f96786b6135d7c6c6d1e4701e1bb36078ec546aea767fc617288
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 99cbb5a87f99af4aeca1299a4ef7999d91ef860342bdec2eae0ad1faf673c571
[INFO] running `Command { std: "docker" "start" "-a" "99cbb5a87f99af4aeca1299a4ef7999d91ef860342bdec2eae0ad1faf673c571", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/opentelemetry_prometheus_text_exporter-1cb9ba3b3bd064bc)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test serialize::tests::test_convert_unit_allocation_when_converted ... ok
[INFO] [stdout] test serialize::tests::test_convert_unit_no_allocation_when_converted ... ok
[INFO] [stdout] test serialize::tests::test_convert_unit_no_allocation_when_unchanged ... ok
[INFO] [stdout] test serialize::tests::test_sanitize_name_no_allocation_when_valid ... ok
[INFO] [stdout] test serialize::tests::test_escape_help_text ... ok
[INFO] [stdout] test serialize::tests::test_configuration_options_behavior ... ok
[INFO] [stdout] test serialize::tests::test_without_target_info_configuration ... ok
[INFO] [stdout] test serialize::tests::test_without_units_configuration ... ok
[INFO] [stdout] test serialize::tests::test_write_help_comment_escapes_description ... ok
[INFO] [stdout] test serialize::tests::test_sanitize_name_allocation_when_invalid ... ok
[INFO] [stdout] test serialize::tests::test_without_counter_suffixes_configuration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/it/main.rs (/opt/rustwide/target/debug/deps/it-1da4f1a1fbac82d4)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_builder_pattern_comprehensive_example ... ok
[INFO] [stdout] test test_without_target_info ... ok
[INFO] [stdout] test test_combined_configuration ... ok
[INFO] [stdout] test test_without_scope_info ... ok
[INFO] [stdout] test test_without_counter_suffixes ... ok
[INFO] [stdout] test test_without_units ... ok
[INFO] [stderr]    Doc-tests opentelemetry_prometheus_text_exporter
[INFO] [stdout] test test_serialize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/exporter.rs - exporter::ExporterBuilder (line 116) ... ok
[INFO] [stdout] test src/../README.md - (line 37) ... ok
[INFO] [stdout] test src/../README.md - (line 71) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.90s; merged doctests compilation took 0.88s
[INFO] running `Command { std: "docker" "inspect" "99cbb5a87f99af4aeca1299a4ef7999d91ef860342bdec2eae0ad1faf673c571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99cbb5a87f99af4aeca1299a4ef7999d91ef860342bdec2eae0ad1faf673c571", kill_on_drop: false }`
[INFO] [stdout] 99cbb5a87f99af4aeca1299a4ef7999d91ef860342bdec2eae0ad1faf673c571