[INFO] fetching crate mmcp-client-stdio 0.1.0...
[INFO] testing mmcp-client-stdio-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mmcp-client-stdio 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mmcp-client-stdio 0.1.0
[INFO] finished tweaking crates.io crate mmcp-client-stdio 0.1.0
[INFO] tweaked toml for crates.io crate mmcp-client-stdio 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mmcp-client-stdio 0.1.0 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] crate crates.io crate mmcp-client-stdio 0.1.0 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" "+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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 584a6048293e522c8566f18e60471ef1dd200e1c415877138e5117797579474a
[INFO] running `Command { std: "docker" "start" "-a" "584a6048293e522c8566f18e60471ef1dd200e1c415877138e5117797579474a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "584a6048293e522c8566f18e60471ef1dd200e1c415877138e5117797579474a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584a6048293e522c8566f18e60471ef1dd200e1c415877138e5117797579474a", kill_on_drop: false }`
[INFO] [stdout] 584a6048293e522c8566f18e60471ef1dd200e1c415877138e5117797579474a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] eb9cb9648df80d750c8037b56bf3663a5efba03f1e48ba84a3a906bf62d5045d
[INFO] running `Command { std: "docker" "start" "-a" "eb9cb9648df80d750c8037b56bf3663a5efba03f1e48ba84a3a906bf62d5045d", kill_on_drop: false }`
[INFO] [stderr]    Compiling mmcp-client-stdio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "eb9cb9648df80d750c8037b56bf3663a5efba03f1e48ba84a3a906bf62d5045d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9cb9648df80d750c8037b56bf3663a5efba03f1e48ba84a3a906bf62d5045d", kill_on_drop: false }`
[INFO] [stdout] eb9cb9648df80d750c8037b56bf3663a5efba03f1e48ba84a3a906bf62d5045d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 564e9e06eb00fec444ee929d000eda6ab1bea7539d4f90be051c0a616ffbba6c
[INFO] running `Command { std: "docker" "start" "-a" "564e9e06eb00fec444ee929d000eda6ab1bea7539d4f90be051c0a616ffbba6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling mmcp-client-stdio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "564e9e06eb00fec444ee929d000eda6ab1bea7539d4f90be051c0a616ffbba6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "564e9e06eb00fec444ee929d000eda6ab1bea7539d4f90be051c0a616ffbba6c", kill_on_drop: false }`
[INFO] [stdout] 564e9e06eb00fec444ee929d000eda6ab1bea7539d4f90be051c0a616ffbba6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 92ef8e0f86135c397bab5ceff782e8cdc071ee5617e0f224adddeda5f2fed774
[INFO] running `Command { std: "docker" "start" "-a" "92ef8e0f86135c397bab5ceff782e8cdc071ee5617e0f224adddeda5f2fed774", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mmcp_client_stdio-56187084cefccf78)
[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 mmcp_client_stdio
[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" "92ef8e0f86135c397bab5ceff782e8cdc071ee5617e0f224adddeda5f2fed774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ef8e0f86135c397bab5ceff782e8cdc071ee5617e0f224adddeda5f2fed774", kill_on_drop: false }`
[INFO] [stdout] 92ef8e0f86135c397bab5ceff782e8cdc071ee5617e0f224adddeda5f2fed774