[INFO] fetching crate metrics-exporter-log 0.4.0...
[INFO] testing metrics-exporter-log-0.4.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate metrics-exporter-log 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate metrics-exporter-log 0.4.0
[INFO] finished tweaking crates.io crate metrics-exporter-log 0.4.0
[INFO] tweaked toml for crates.io crate metrics-exporter-log 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metrics-exporter-log 0.4.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.48.0)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 21d7bb48fbae11d7e6837fc553300387ec0e56e6be88f0385533d6648e45cdc1
[INFO] running `Command { std: "docker" "start" "-a" "21d7bb48fbae11d7e6837fc553300387ec0e56e6be88f0385533d6648e45cdc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21d7bb48fbae11d7e6837fc553300387ec0e56e6be88f0385533d6648e45cdc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d7bb48fbae11d7e6837fc553300387ec0e56e6be88f0385533d6648e45cdc1", kill_on_drop: false }`
[INFO] [stdout] 21d7bb48fbae11d7e6837fc553300387ec0e56e6be88f0385533d6648e45cdc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d57389f4dfcc17e66482cdd285782639d86613dab58203c6d579af66148da247
[INFO] running `Command { std: "docker" "start" "-a" "d57389f4dfcc17e66482cdd285782639d86613dab58203c6d579af66148da247", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling metrics-core v0.5.2
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling metrics-exporter-log v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "d57389f4dfcc17e66482cdd285782639d86613dab58203c6d579af66148da247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d57389f4dfcc17e66482cdd285782639d86613dab58203c6d579af66148da247", kill_on_drop: false }`
[INFO] [stdout] d57389f4dfcc17e66482cdd285782639d86613dab58203c6d579af66148da247
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 95135cbb225c384cbf637defdb7041bd51280e84d7536a6f585fdf5c80c42f56
[INFO] running `Command { std: "docker" "start" "-a" "95135cbb225c384cbf637defdb7041bd51280e84d7536a6f585fdf5c80c42f56", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics-exporter-log v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "95135cbb225c384cbf637defdb7041bd51280e84d7536a6f585fdf5c80c42f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95135cbb225c384cbf637defdb7041bd51280e84d7536a6f585fdf5c80c42f56", kill_on_drop: false }`
[INFO] [stdout] 95135cbb225c384cbf637defdb7041bd51280e84d7536a6f585fdf5c80c42f56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8b2d66460a2256ba2c2a240384d75475d726fa9d2997b9f7b1a7287ee29662f4
[INFO] running `Command { std: "docker" "start" "-a" "8b2d66460a2256ba2c2a240384d75475d726fa9d2997b9f7b1a7287ee29662f4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metrics_exporter_log-f4d67de8b8efc332)
[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 metrics_exporter_log
[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" "8b2d66460a2256ba2c2a240384d75475d726fa9d2997b9f7b1a7287ee29662f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2d66460a2256ba2c2a240384d75475d726fa9d2997b9f7b1a7287ee29662f4", kill_on_drop: false }`
[INFO] [stdout] 8b2d66460a2256ba2c2a240384d75475d726fa9d2997b9f7b1a7287ee29662f4