[INFO] fetching crate ultrafast-mcp 202506018.1.0...
[INFO] testing ultrafast-mcp-202506018.1.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate ultrafast-mcp 202506018.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ultrafast-mcp 202506018.1.0
[INFO] finished tweaking crates.io crate ultrafast-mcp 202506018.1.0
[INFO] tweaked toml for crates.io crate ultrafast-mcp 202506018.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ultrafast-mcp 202506018.1.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ultrafast-mcp 202506018.1.0 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a293c5e2f5861a4cd10904b0b5bcb5ca20c8e98d76e55ad8d889b5b45857239b
[INFO] running `Command { std: "docker" "start" "-a" "a293c5e2f5861a4cd10904b0b5bcb5ca20c8e98d76e55ad8d889b5b45857239b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a293c5e2f5861a4cd10904b0b5bcb5ca20c8e98d76e55ad8d889b5b45857239b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a293c5e2f5861a4cd10904b0b5bcb5ca20c8e98d76e55ad8d889b5b45857239b", kill_on_drop: false }`
[INFO] [stdout] a293c5e2f5861a4cd10904b0b5bcb5ca20c8e98d76e55ad8d889b5b45857239b
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24023d95d31d891244164f1b892476bac9c5b6567880f3d4f7b9582c2a9bd8af
[INFO] running `Command { std: "docker" "start" "-a" "24023d95d31d891244164f1b892476bac9c5b6567880f3d4f7b9582c2a9bd8af", kill_on_drop: false }`
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling dyn-clone v1.0.19
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling async-trait v0.1.88
[INFO] [stderr]    Compiling schemars_derive v1.0.4
[INFO] [stderr]    Compiling tokio v1.46.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling uuid v1.17.0
[INFO] [stderr]    Compiling schemars v1.0.4
[INFO] [stderr]    Compiling ultrafast-mcp v202506018.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.64s
[INFO] running `Command { std: "docker" "inspect" "24023d95d31d891244164f1b892476bac9c5b6567880f3d4f7b9582c2a9bd8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24023d95d31d891244164f1b892476bac9c5b6567880f3d4f7b9582c2a9bd8af", kill_on_drop: false }`
[INFO] [stdout] 24023d95d31d891244164f1b892476bac9c5b6567880f3d4f7b9582c2a9bd8af
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25ee3cf3c57e5f15a2fbbba0ac315bdcdf9740541f26aac132cbf30f1711e2b3
[INFO] running `Command { std: "docker" "start" "-a" "25ee3cf3c57e5f15a2fbbba0ac315bdcdf9740541f26aac132cbf30f1711e2b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling ultrafast-mcp v202506018.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "25ee3cf3c57e5f15a2fbbba0ac315bdcdf9740541f26aac132cbf30f1711e2b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ee3cf3c57e5f15a2fbbba0ac315bdcdf9740541f26aac132cbf30f1711e2b3", kill_on_drop: false }`
[INFO] [stdout] 25ee3cf3c57e5f15a2fbbba0ac315bdcdf9740541f26aac132cbf30f1711e2b3
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8274dc484f0e27dc261ce83d2cbb6851921cd8a9b13e6b771af8b042850e14ff
[INFO] running `Command { std: "docker" "start" "-a" "8274dc484f0e27dc261ce83d2cbb6851921cd8a9b13e6b771af8b042850e14ff", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ultrafast_mcp-94fe599e6e6607ae)
[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 ultrafast_mcp
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 333) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 141) ... ignored
[INFO] [stdout] test src/lib.rs - (line 192) ... ignored
[INFO] [stdout] test src/lib.rs - (line 228) ... ignored
[INFO] [stdout] test src/lib.rs - (line 249) ... ignored
[INFO] [stdout] test src/lib.rs - (line 316) ... ignored
[INFO] [stdout] test src/lib.rs - (line 38) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 6 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.67s; merged doctests compilation took 0.66s
[INFO] running `Command { std: "docker" "inspect" "8274dc484f0e27dc261ce83d2cbb6851921cd8a9b13e6b771af8b042850e14ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8274dc484f0e27dc261ce83d2cbb6851921cd8a9b13e6b771af8b042850e14ff", kill_on_drop: false }`
[INFO] [stdout] 8274dc484f0e27dc261ce83d2cbb6851921cd8a9b13e6b771af8b042850e14ff