[INFO] fetching crate metrics-exporter-statsd 0.9.0...
[INFO] testing metrics-exporter-statsd-0.9.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate metrics-exporter-statsd 0.9.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate metrics-exporter-statsd 0.9.0
[INFO] finished tweaking crates.io crate metrics-exporter-statsd 0.9.0
[INFO] tweaked toml for crates.io crate metrics-exporter-statsd 0.9.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metrics-exporter-statsd 0.9.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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] e7b1e103a3c44dd848d8289c4cbfb642261049df32b0962d442505696a520c6a
[INFO] running `Command { std: "docker" "start" "-a" "e7b1e103a3c44dd848d8289c4cbfb642261049df32b0962d442505696a520c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b1e103a3c44dd848d8289c4cbfb642261049df32b0962d442505696a520c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b1e103a3c44dd848d8289c4cbfb642261049df32b0962d442505696a520c6a", kill_on_drop: false }`
[INFO] [stdout] e7b1e103a3c44dd848d8289c4cbfb642261049df32b0962d442505696a520c6a
[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] d8b3637964c849302f24abd1b20a2fe3d1067b37c16c852382932e2cda99cdc0
[INFO] running `Command { std: "docker" "start" "-a" "d8b3637964c849302f24abd1b20a2fe3d1067b37c16c852382932e2cda99cdc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling metrics v0.24.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling cadence v1.6.0
[INFO] [stderr]    Compiling metrics-exporter-statsd v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Histogram` is never constructed
[INFO] [stdout]  --> src/types.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Histogram {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "d8b3637964c849302f24abd1b20a2fe3d1067b37c16c852382932e2cda99cdc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b3637964c849302f24abd1b20a2fe3d1067b37c16c852382932e2cda99cdc0", kill_on_drop: false }`
[INFO] [stdout] d8b3637964c849302f24abd1b20a2fe3d1067b37c16c852382932e2cda99cdc0
[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] b66eb674f7672754f85436eca0f10c9a2d0b9523baec8f2c2f2b96752fd98c83
[INFO] running `Command { std: "docker" "start" "-a" "b66eb674f7672754f85436eca0f10c9a2d0b9523baec8f2c2f2b96752fd98c83", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Histogram` is never constructed
[INFO] [stdout]  --> src/types.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Histogram {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metrics-exporter-statsd v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Histogram` is never constructed
[INFO] [stdout]  --> src/types.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Histogram {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "b66eb674f7672754f85436eca0f10c9a2d0b9523baec8f2c2f2b96752fd98c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b66eb674f7672754f85436eca0f10c9a2d0b9523baec8f2c2f2b96752fd98c83", kill_on_drop: false }`
[INFO] [stdout] b66eb674f7672754f85436eca0f10c9a2d0b9523baec8f2c2f2b96752fd98c83
[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] 286eccb4dc206690f5e7010e141b96f1c8440a5adb6d4685ea35201be1e025a1
[INFO] running `Command { std: "docker" "start" "-a" "286eccb4dc206690f5e7010e141b96f1c8440a5adb6d4685ea35201be1e025a1", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Histogram` is never constructed
[INFO] [stderr]  --> src/types.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Histogram {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `metrics-exporter-statsd` (lib) generated 1 warning
[INFO] [stderr] warning: `metrics-exporter-statsd` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metrics_exporter_statsd-57b43625bede6c7d)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test builder::tests::counter_with_tags ... ok
[INFO] [stdout] test builder::tests::counter ... ok
[INFO] [stdout] test builder::tests::distribution_with_decimals ... ok
[INFO] [stdout] test builder::tests::histogram_as_timer ... ok
[INFO] [stdout] test builder::tests::default_histogram_to_distribution ... ok
[INFO] [stdout] test builder::tests::gauge ... ok
[INFO] [stdout] test builder::tests::histogram ... ok
[INFO] [stdout] test builder::tests::distribution_with_prefix ... ok
[INFO] [stdout] test builder::tests::histogram_with_prefix ... ok
[INFO] [stdout] test builder::tests::test_custom_sink ... ok
[INFO] [stdout] test builder::tests::default_histogram_to_timer ... ok
[INFO] [stdout] test builder::tests::prefix ... ok
[INFO] [stdout] test builder::tests::histogram_with_tags ... ok
[INFO] [stdout] test builder::tests::histogram_as_distribution ... ok
[INFO] [stdout] test builder::tests::test_default_tags ... ok
[INFO] [stdout] test builder::tests::gauge_with_tags ... ok
[INFO] [stdout] test builder::tests::histogram_with_decimals ... ok
[INFO] [stdout] test builder::tests::bad_host_name - should panic ... ok
[INFO] [stdout] test builder::tests::bad_port - should panic ... ok
[INFO] [stderr]    Doc-tests metrics_exporter_statsd
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/builder.rs - builder::StatsdBuilder::with_sink (line 154) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 65) ... ok
[INFO] [stdout] test src/lib.rs - (line 120) ... ok
[INFO] [stdout] test src/builder.rs - builder::StatsdBuilder::build (line 187) ... ok
[INFO] [stdout] test src/lib.rs - (line 82) ... ok
[INFO] [stdout] test src/lib.rs - (line 104) ... ok
[INFO] [stdout] test src/lib.rs - (line 93) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - (line 29) ... ok
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "286eccb4dc206690f5e7010e141b96f1c8440a5adb6d4685ea35201be1e025a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "286eccb4dc206690f5e7010e141b96f1c8440a5adb6d4685ea35201be1e025a1", kill_on_drop: false }`
[INFO] [stdout] 286eccb4dc206690f5e7010e141b96f1c8440a5adb6d4685ea35201be1e025a1