[INFO] fetching crate tc-proposer-metrics 0.8.0...
[INFO] testing tc-proposer-metrics-0.8.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tc-proposer-metrics 0.8.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tc-proposer-metrics 0.8.0
[INFO] finished tweaking crates.io crate tc-proposer-metrics 0.8.0
[INFO] tweaked toml for crates.io crate tc-proposer-metrics 0.8.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tc-proposer-metrics 0.8.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 111 packages to latest compatible versions
[INFO] [stderr]       Adding prometheus-endpoint v0.8.1 (available: v2.1.2)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 7bf58c17547a112dd9925a4a21c93514fb5e669fd2209383627d88323b6fe952
[INFO] running `Command { std: "docker" "start" "-a" "7bf58c17547a112dd9925a4a21c93514fb5e669fd2209383627d88323b6fe952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bf58c17547a112dd9925a4a21c93514fb5e669fd2209383627d88323b6fe952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bf58c17547a112dd9925a4a21c93514fb5e669fd2209383627d88323b6fe952", kill_on_drop: false }`
[INFO] [stdout] 7bf58c17547a112dd9925a4a21c93514fb5e669fd2209383627d88323b6fe952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 19d04ad5a1ec0a5f0a64f0e5953bccda6625d005a458418168e9816518d2c77b
[INFO] running `Command { std: "docker" "start" "-a" "19d04ad5a1ec0a5f0a64f0e5953bccda6625d005a458418168e9816518d2c77b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling async-lock v3.4.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling async-executor v1.13.3
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling async-signal v0.2.13
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling async-process v2.5.0
[INFO] [stderr]    Compiling async-std v1.13.2
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling prometheus-endpoint v0.8.1
[INFO] [stderr]    Compiling tc-proposer-metrics v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.37s
[INFO] running `Command { std: "docker" "inspect" "19d04ad5a1ec0a5f0a64f0e5953bccda6625d005a458418168e9816518d2c77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19d04ad5a1ec0a5f0a64f0e5953bccda6625d005a458418168e9816518d2c77b", kill_on_drop: false }`
[INFO] [stdout] 19d04ad5a1ec0a5f0a64f0e5953bccda6625d005a458418168e9816518d2c77b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5c9ce5e02106f959b6f47e515fc81e365da1121de767e0b6ff4e1d7e9529974a
[INFO] running `Command { std: "docker" "start" "-a" "5c9ce5e02106f959b6f47e515fc81e365da1121de767e0b6ff4e1d7e9529974a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tc-proposer-metrics v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "5c9ce5e02106f959b6f47e515fc81e365da1121de767e0b6ff4e1d7e9529974a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c9ce5e02106f959b6f47e515fc81e365da1121de767e0b6ff4e1d7e9529974a", kill_on_drop: false }`
[INFO] [stdout] 5c9ce5e02106f959b6f47e515fc81e365da1121de767e0b6ff4e1d7e9529974a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 5a45ca220590fe09b82e461eff4358239a09d1ceabadb51c532c781cdc15591b
[INFO] running `Command { std: "docker" "start" "-a" "5a45ca220590fe09b82e461eff4358239a09d1ceabadb51c532c781cdc15591b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tc_proposer_metrics-0f9d4c8a23d4fc3d)
[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] [stderr]    Doc-tests tc_proposer_metrics
[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" "5a45ca220590fe09b82e461eff4358239a09d1ceabadb51c532c781cdc15591b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a45ca220590fe09b82e461eff4358239a09d1ceabadb51c532c781cdc15591b", kill_on_drop: false }`
[INFO] [stdout] 5a45ca220590fe09b82e461eff4358239a09d1ceabadb51c532c781cdc15591b