[INFO] fetching crate rust_observer 0.2.2...
[INFO] testing rust_observer-0.2.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rust_observer 0.2.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rust_observer 0.2.2
[INFO] finished tweaking crates.io crate rust_observer 0.2.2
[INFO] tweaked toml for crates.io crate rust_observer 0.2.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_observer 0.2.2 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 185 packages to latest compatible versions
[INFO] [stderr]       Adding sysinfo v0.31.4 (available: v0.37.2)
[INFO] [stderr]       Adding toml v0.8.23 (available: v0.9.8)
[INFO] [stderr]       Adding tonic v0.12.3 (available: v0.14.2)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7423832aed7cd2432a21bd627dc9bd3e5bcae77925d2af676c9b4c37a93b432b
[INFO] running `Command { std: "docker" "start" "-a" "7423832aed7cd2432a21bd627dc9bd3e5bcae77925d2af676c9b4c37a93b432b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7423832aed7cd2432a21bd627dc9bd3e5bcae77925d2af676c9b4c37a93b432b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7423832aed7cd2432a21bd627dc9bd3e5bcae77925d2af676c9b4c37a93b432b", kill_on_drop: false }`
[INFO] [stdout] 7423832aed7cd2432a21bd627dc9bd3e5bcae77925d2af676c9b4c37a93b432b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 68afd30083f8607dc4856248e826461d1b7c5715601cbbaff184fa054529d302
[INFO] running `Command { std: "docker" "start" "-a" "68afd30083f8607dc4856248e826461d1b7c5715601cbbaff184fa054529d302", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling toml_parser v1.0.4
[INFO] [stderr]    Compiling toml_edit v0.23.7
[INFO] [stderr]    Compiling sysinfo v0.31.4
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling axum-core v0.4.5
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling prost v0.13.5
[INFO] [stderr]    Compiling prost-types v0.13.5
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling prost-build v0.13.5
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling tonic-build v0.12.3
[INFO] [stderr]    Compiling axum v0.7.9
[INFO] [stderr]    Compiling rust_observer_protobuf v0.1.2
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling rust_observer_trace_macro v0.1.1
[INFO] [stderr]    Compiling tokio-util v0.7.17
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling rust_observer_log_macro v0.1.5
[INFO] [stderr]    Compiling h2 v0.4.12
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling hyper v1.7.0
[INFO] [stderr]    Compiling hyper-util v0.1.17
[INFO] [stderr]    Compiling hyper-timeout v0.5.2
[INFO] [stderr]    Compiling tonic v0.12.3
[INFO] [stderr]    Compiling rust_observer v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 53.96s
[INFO] running `Command { std: "docker" "inspect" "68afd30083f8607dc4856248e826461d1b7c5715601cbbaff184fa054529d302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68afd30083f8607dc4856248e826461d1b7c5715601cbbaff184fa054529d302", kill_on_drop: false }`
[INFO] [stdout] 68afd30083f8607dc4856248e826461d1b7c5715601cbbaff184fa054529d302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3d2956c492fbe522813d016950c4fc7fc3df4f542c09b1e8212c9a59d19587b1
[INFO] running `Command { std: "docker" "start" "-a" "3d2956c492fbe522813d016950c4fc7fc3df4f542c09b1e8212c9a59d19587b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_observer v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `Command { std: "docker" "inspect" "3d2956c492fbe522813d016950c4fc7fc3df4f542c09b1e8212c9a59d19587b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d2956c492fbe522813d016950c4fc7fc3df4f542c09b1e8212c9a59d19587b1", kill_on_drop: false }`
[INFO] [stdout] 3d2956c492fbe522813d016950c4fc7fc3df4f542c09b1e8212c9a59d19587b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f0be86412b4f3fd0afdcf53ca0e04b4da0f17d766848ed595bebcf6311cddb14
[INFO] running `Command { std: "docker" "start" "-a" "f0be86412b4f3fd0afdcf53ca0e04b4da0f17d766848ed595bebcf6311cddb14", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_observer-20568e69b4f1e4b2)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_metrics_creation ... ok
[INFO] [stdout] test tests::test_trace_context_end_span ... ok
[INFO] [stdout] test tests::test_trace_context_creation ... ok
[INFO] [stdout] test tests::test_config_parsing ... ok
[INFO] [stdout] test tests::test_trace_context_signal_error ... ok
[INFO] [stdout] test tests::test_log_message_creation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_observer
[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 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f0be86412b4f3fd0afdcf53ca0e04b4da0f17d766848ed595bebcf6311cddb14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0be86412b4f3fd0afdcf53ca0e04b4da0f17d766848ed595bebcf6311cddb14", kill_on_drop: false }`
[INFO] [stdout] f0be86412b4f3fd0afdcf53ca0e04b4da0f17d766848ed595bebcf6311cddb14