[INFO] fetching crate rust_observer 0.2.2...
[INFO] testing rust_observer-0.2.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rust_observer 0.2.2 into /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_observer 0.2.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 191 packages to latest compatible versions
[INFO] [stderr]       Adding sysinfo v0.31.4 (available: v0.38.4)
[INFO] [stderr]       Adding toml v0.8.23 (available: v1.1.2+spec-1.1.0)
[INFO] [stderr]       Adding tonic v0.12.3 (available: v0.14.5)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 1e49b6afeee145200f540171bb3e05e0823390e0668dba80f2411e22c9a0931a
[INFO] running `Command { std: "docker" "start" "-a" "1e49b6afeee145200f540171bb3e05e0823390e0668dba80f2411e22c9a0931a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e49b6afeee145200f540171bb3e05e0823390e0668dba80f2411e22c9a0931a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e49b6afeee145200f540171bb3e05e0823390e0668dba80f2411e22c9a0931a", kill_on_drop: false }`
[INFO] [stdout] 1e49b6afeee145200f540171bb3e05e0823390e0668dba80f2411e22c9a0931a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] cfe6df53f797a73476f202423a349120945686849136857b1ec1ec723b9a98cd
[INFO] running `Command { std: "docker" "start" "-a" "cfe6df53f797a73476f202423a349120945686849136857b1ec1ec723b9a98cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling bitflags v2.11.1
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling petgraph v0.7.1
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling pin-project-internal v1.1.11
[INFO] [stderr]    Compiling winnow v1.0.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling matchit v0.7.3
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling tokio v1.52.1
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling toml_parser v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling pin-project v1.1.11
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling toml_edit v0.25.11+spec-1.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling tower v0.5.3
[INFO] [stderr]    Compiling axum-core v0.4.5
[INFO] [stderr]    Compiling proc-macro-crate v3.5.0
[INFO] [stderr]    Compiling prost v0.13.5
[INFO] [stderr]    Compiling sysinfo v0.31.4
[INFO] [stderr]    Compiling prost-types v0.13.5
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling prost-build v0.13.5
[INFO] [stderr]    Compiling tonic-build v0.12.3
[INFO] [stderr]    Compiling axum v0.7.9
[INFO] [stderr]    Compiling tokio-util v0.7.18
[INFO] [stderr]    Compiling tokio-stream v0.1.18
[INFO] [stderr]    Compiling rust_observer_log_macro v0.1.5
[INFO] [stderr]    Compiling rust_observer_protobuf v0.1.2
[INFO] [stderr]    Compiling h2 v0.4.13
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling rust_observer_trace_macro v0.1.1
[INFO] [stderr]    Compiling hyper v1.9.0
[INFO] [stderr]    Compiling hyper-util v0.1.20
[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 25.01s
[INFO] running `Command { std: "docker" "inspect" "cfe6df53f797a73476f202423a349120945686849136857b1ec1ec723b9a98cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe6df53f797a73476f202423a349120945686849136857b1ec1ec723b9a98cd", kill_on_drop: false }`
[INFO] [stdout] cfe6df53f797a73476f202423a349120945686849136857b1ec1ec723b9a98cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 781ff85912b04cb60366d0cfb86029e9cbd92334ed73225ec80f472821b8a115
[INFO] running `Command { std: "docker" "start" "-a" "781ff85912b04cb60366d0cfb86029e9cbd92334ed73225ec80f472821b8a115", 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 1.61s
[INFO] running `Command { std: "docker" "inspect" "781ff85912b04cb60366d0cfb86029e9cbd92334ed73225ec80f472821b8a115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "781ff85912b04cb60366d0cfb86029e9cbd92334ed73225ec80f472821b8a115", kill_on_drop: false }`
[INFO] [stdout] 781ff85912b04cb60366d0cfb86029e9cbd92334ed73225ec80f472821b8a115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ba2ee6c91cd8252e2835ff8efdacb97a84b0d3e59dc296cbcfd25f9f8423a8c0
[INFO] running `Command { std: "docker" "start" "-a" "ba2ee6c91cd8252e2835ff8efdacb97a84b0d3e59dc296cbcfd25f9f8423a8c0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_observer-040b4c6ce2f09f0b)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_metrics_creation ... ok
[INFO] [stdout] test tests::test_trace_context_creation ... ok
[INFO] [stdout] test tests::test_log_message_creation ... ok
[INFO] [stdout] test tests::test_trace_context_end_span ... ok
[INFO] [stdout] test tests::test_config_parsing ... ok
[INFO] [stdout] test tests::test_trace_context_signal_error ... 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 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba2ee6c91cd8252e2835ff8efdacb97a84b0d3e59dc296cbcfd25f9f8423a8c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2ee6c91cd8252e2835ff8efdacb97a84b0d3e59dc296cbcfd25f9f8423a8c0", kill_on_drop: false }`
[INFO] [stdout] ba2ee6c91cd8252e2835ff8efdacb97a84b0d3e59dc296cbcfd25f9f8423a8c0
