[INFO] fetching crate kodegen_mcp_client 0.10.9...
[INFO] fixing kodegen_mcp_client-0.10.9 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate kodegen_mcp_client 0.10.9 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
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[INFO] tweaked toml for crates.io crate kodegen_mcp_client 0.10.9 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kodegen_mcp_client 0.10.9 on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kodegen_mcp_client 0.10.9 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8b738f72521cd6b79b2fbcac71855ad5b20323e84643df9afde8570f5a8cd4e9
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[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" "8b738f72521cd6b79b2fbcac71855ad5b20323e84643df9afde8570f5a8cd4e9" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b738f72521cd6b79b2fbcac71855ad5b20323e84643df9afde8570f5a8cd4e9", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8b738f72521cd6b79b2fbcac71855ad5b20323e84643df9afde8570f5a8cd4e9" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
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[INFO] [stderr]     Checking kodegen_config v0.10.11
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[INFO] [stdout] error[E0164]: expected tuple struct or tuple variant, found struct variant `ClientError::Connection`
[INFO] [stdout]   --> tests/stdio_transport_tests.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             ClientError::Connection(msg) => {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a tuple struct or tuple variant
[INFO] [stdout]    |
[INFO] [stdout] help: the struct variant's fields are being ignored
[INFO] [stdout]    |
[INFO] [stdout] 13 -             ClientError::Connection(msg) => {
[INFO] [stdout] 13 +             ClientError::Connection { message: _, transport_type: _, endpoint: _ } => {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0164`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kodegen_mcp_client` (test "stdio_transport_tests") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8b738f72521cd6b79b2fbcac71855ad5b20323e84643df9afde8570f5a8cd4e9", kill_on_drop: false }`
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[INFO] [stdout] 8b738f72521cd6b79b2fbcac71855ad5b20323e84643df9afde8570f5a8cd4e9
