[INFO] fetching crate ultrafast-mcp 202506018.1.0...
[INFO] testing ultrafast-mcp-202506018.1.0 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate ultrafast-mcp 202506018.1.0 into /workspace/builds/worker-3-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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ultrafast-mcp 202506018.1.0 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a27b75ce4f688534a9f2426f864f2d1e27834c42cd242fe6e12e285d79c46304
[INFO] running `Command { std: "docker" "start" "-a" "a27b75ce4f688534a9f2426f864f2d1e27834c42cd242fe6e12e285d79c46304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a27b75ce4f688534a9f2426f864f2d1e27834c42cd242fe6e12e285d79c46304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a27b75ce4f688534a9f2426f864f2d1e27834c42cd242fe6e12e285d79c46304", kill_on_drop: false }`
[INFO] [stdout] a27b75ce4f688534a9f2426f864f2d1e27834c42cd242fe6e12e285d79c46304
[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=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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73d662ea4d3269eca677ee9c8ff6e2e4d9930b0f385aa96484397d1f88709076
[INFO] running `Command { std: "docker" "start" "-a" "73d662ea4d3269eca677ee9c8ff6e2e4d9930b0f385aa96484397d1f88709076", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling futures-channel v0.3.31
[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 tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[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 tracing v0.1.41
[INFO] [stderr]    Compiling thiserror v2.0.12
[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 21.45s
[INFO] running `Command { std: "docker" "inspect" "73d662ea4d3269eca677ee9c8ff6e2e4d9930b0f385aa96484397d1f88709076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d662ea4d3269eca677ee9c8ff6e2e4d9930b0f385aa96484397d1f88709076", kill_on_drop: false }`
[INFO] [stdout] 73d662ea4d3269eca677ee9c8ff6e2e4d9930b0f385aa96484397d1f88709076
[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=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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b62aeca10447de8b5f1e798614ea32e11f83d30e86d28902fa3a3912643416a1
[INFO] running `Command { std: "docker" "start" "-a" "b62aeca10447de8b5f1e798614ea32e11f83d30e86d28902fa3a3912643416a1", 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 0.52s
[INFO] running `Command { std: "docker" "inspect" "b62aeca10447de8b5f1e798614ea32e11f83d30e86d28902fa3a3912643416a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62aeca10447de8b5f1e798614ea32e11f83d30e86d28902fa3a3912643416a1", kill_on_drop: false }`
[INFO] [stdout] b62aeca10447de8b5f1e798614ea32e11f83d30e86d28902fa3a3912643416a1
[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=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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 267a2e1d0d14161265f0c6ee4c9a9682bf0b0be19a0a367fad984471fec8c159
[INFO] running `Command { std: "docker" "start" "-a" "267a2e1d0d14161265f0c6ee4c9a9682bf0b0be19a0a367fad984471fec8c159", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[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 0.48s; merged doctests compilation took 0.47s
[INFO] running `Command { std: "docker" "inspect" "267a2e1d0d14161265f0c6ee4c9a9682bf0b0be19a0a367fad984471fec8c159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "267a2e1d0d14161265f0c6ee4c9a9682bf0b0be19a0a367fad984471fec8c159", kill_on_drop: false }`
[INFO] [stdout] 267a2e1d0d14161265f0c6ee4c9a9682bf0b0be19a0a367fad984471fec8c159