[INFO] fetching crate trace-weft-mcp 0.3.5...
[INFO] testing trace-weft-mcp-0.3.5 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate trace-weft-mcp 0.3.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate trace-weft-mcp 0.3.5
[INFO] finished tweaking crates.io crate trace-weft-mcp 0.3.5
[INFO] tweaked toml for crates.io crate trace-weft-mcp 0.3.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate trace-weft-mcp 0.3.5 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trace-weft-mcp 0.3.5 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" "+1.100.0-beta.1" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203
[INFO] running `Command { std: "docker" "start" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.15.2
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling memchr v2.8.2
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling typenum v1.20.1
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling cc v1.2.65
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling bytes v1.12.0
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]    Compiling socket2 v0.6.4
[INFO] [stderr]    Compiling mio v1.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling cpufeatures v0.2.17
[INFO] [stderr]    Compiling crc-catalog v2.5.0
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling tokio v1.52.3
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling flume v0.12.0
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling dotenvy v0.15.7
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling anyhow v1.0.103
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.37.0
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling hashlink v0.11.1
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling uuid v1.23.4
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling regex v1.12.4
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.7
[INFO] [stderr]    Compiling yoke-derive v0.8.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.3
[INFO] [stderr]    Compiling displaydoc v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling trace-weft-macros v0.3.5
[INFO] [stderr]    Compiling zerofrom v0.1.8
[INFO] [stderr]    Compiling yoke v0.8.3
[INFO] [stderr]    Compiling tokio-stream v0.1.18
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling zerovec v0.11.6
[INFO] [stderr]    Compiling zerotrie v0.2.4
[INFO] [stderr]    Compiling tinystr v0.8.3
[INFO] [stderr]    Compiling potential_utf v0.1.5
[INFO] [stderr]    Compiling icu_collections v2.2.0
[INFO] [stderr]    Compiling icu_locale_core v2.2.0
[INFO] [stderr]    Compiling icu_provider v2.2.0
[INFO] [stderr]    Compiling either v1.16.0
[INFO] [stderr]    Compiling trace-weft-core v0.3.5
[INFO] [stderr]    Compiling icu_properties v2.2.0
[INFO] [stderr]    Compiling icu_normalizer v2.2.0
[INFO] [stderr]    Compiling idna_adapter v1.2.2
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling sqlx-core v0.9.0
[INFO] [stderr]    Compiling sqlx-sqlite v0.9.0
[INFO] [stderr]    Compiling sqlx-macros-core v0.9.0
[INFO] [stderr]    Compiling sqlx-macros v0.9.0
[INFO] [stderr]    Compiling sqlx v0.9.0
[INFO] [stderr]    Compiling trace-weft-recorder v0.3.5
[INFO] [stderr]    Compiling trace-weft v0.3.5
[INFO] [stderr]    Compiling trace-weft-mcp v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 35.93s
[INFO] running `Command { std: "docker" "inspect" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling trace-weft-mcp v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", 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/build/trace-weft-mcp/3629a5417e74c33a/out/trace_weft_mcp-3629a5417e74c33a)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::rejects_non_hex_segments ... ok
[INFO] [stdout] test tests::rejects_all_zero_ids ... ok
[INFO] [stdout] test tests::rejects_unsupported_version ... ok
[INFO] [stdout] test tests::rejects_wrong_segment_lengths ... ok
[INFO] [stdout] test tests::client_attaches_mcp_attributes ... ok
[INFO] [stdout] test tests::span_id_reduction_matches_otel_low_bytes ... ok
[INFO] [stdout] test tests::client_injects_traceparent_carrying_active_span_ids ... ok
[INFO] [stdout] test tests::rejects_wrong_field_count ... ok
[INFO] [stdout] test tests::server_invalid_traceparent_starts_new_root_but_keeps_raw_header ... ok
[INFO] [stdout] test tests::server_parents_span_to_incoming_traceparent ... ok
[INFO] [stdout] test tests::to_traceparent_emits_wellformed_w3c_shape ... ok
[INFO] [stdout] test tests::server_without_traceparent_starts_new_root ... ok
[INFO] [stdout] test tests::traceparent_roundtrip_preserves_ids ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests trace_weft_mcp
[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" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203", kill_on_drop: false }`
[INFO] [stdout] d2637a213309e6012250ce0e348d0da2bcb35e53fcaf6d848be5682ba049c203
