[INFO] fetching crate resource-sampler 1.0.0...
[INFO] testing resource-sampler-1.0.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate resource-sampler 1.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate resource-sampler 1.0.0
[INFO] finished tweaking crates.io crate resource-sampler 1.0.0
[INFO] tweaked toml for crates.io crate resource-sampler 1.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate resource-sampler 1.0.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate resource-sampler 1.0.0 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18a94447e957cc380724c1c0aa322985e0abd0f01d37e36c63c18c1c5ea581bc
[INFO] running `Command { std: "docker" "start" "-a" "18a94447e957cc380724c1c0aa322985e0abd0f01d37e36c63c18c1c5ea581bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18a94447e957cc380724c1c0aa322985e0abd0f01d37e36c63c18c1c5ea581bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18a94447e957cc380724c1c0aa322985e0abd0f01d37e36c63c18c1c5ea581bc", kill_on_drop: false }`
[INFO] [stdout] 18a94447e957cc380724c1c0aa322985e0abd0f01d37e36c63c18c1c5ea581bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94babaf827b13eaadf6a8dc63e5c6acc26769c1300c4390fb8cbec068afb7743
[INFO] running `Command { std: "docker" "start" "-a" "94babaf827b13eaadf6a8dc63e5c6acc26769c1300c4390fb8cbec068afb7743", kill_on_drop: false }`
[INFO] [stderr]    Compiling resource-sampler v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "94babaf827b13eaadf6a8dc63e5c6acc26769c1300c4390fb8cbec068afb7743", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94babaf827b13eaadf6a8dc63e5c6acc26769c1300c4390fb8cbec068afb7743", kill_on_drop: false }`
[INFO] [stdout] 94babaf827b13eaadf6a8dc63e5c6acc26769c1300c4390fb8cbec068afb7743
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b45d7c4a023811821bba3a8b9bda0a4630361e764a99b3bf95ef26b687ad0929
[INFO] running `Command { std: "docker" "start" "-a" "b45d7c4a023811821bba3a8b9bda0a4630361e764a99b3bf95ef26b687ad0929", kill_on_drop: false }`
[INFO] [stderr]    Compiling resource-sampler v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "b45d7c4a023811821bba3a8b9bda0a4630361e764a99b3bf95ef26b687ad0929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45d7c4a023811821bba3a8b9bda0a4630361e764a99b3bf95ef26b687ad0929", kill_on_drop: false }`
[INFO] [stdout] b45d7c4a023811821bba3a8b9bda0a4630361e764a99b3bf95ef26b687ad0929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3012c0ba887b10f58d4616e506d9a76eecb775d0e003feebf4dfe6dcb07b9519
[INFO] running `Command { std: "docker" "start" "-a" "3012c0ba887b10f58d4616e506d9a76eecb775d0e003feebf4dfe6dcb07b9519", 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/resource_sampler-674cb9512792295e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test gpu::tests::collect_gpu_returns_vec ... ok
[INFO] [stdout] test ring_buffer::tests::fd_leak_detector_fires ... ok
[INFO] [stdout] test ring_buffer::tests::ring_buf_capacity ... ok
[INFO] [stdout] test ring_buffer::tests::fd_leak_detector_silent_when_stable ... ok
[INFO] [stdout] test ring_buffer::tests::ring_buf_last_n ... ok
[INFO] [stderr]    Doc-tests resource_sampler
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "3012c0ba887b10f58d4616e506d9a76eecb775d0e003feebf4dfe6dcb07b9519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3012c0ba887b10f58d4616e506d9a76eecb775d0e003feebf4dfe6dcb07b9519", kill_on_drop: false }`
[INFO] [stdout] 3012c0ba887b10f58d4616e506d9a76eecb775d0e003feebf4dfe6dcb07b9519
