[INFO] fetching crate tower-mcp 0.12.0...
[INFO] fixing tower-mcp-0.12.0 against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] extracting crate tower-mcp 0.12.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate tower-mcp 0.12.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tower-mcp 0.12.0
[INFO] tweaked toml for crates.io crate tower-mcp 0.12.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tower-mcp 0.12.0 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 tower-mcp 0.12.0 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-resilience-coalesce v0.9.3
[INFO] [stderr]   Downloaded tower-resilience v0.9.3
[INFO] [stderr]   Downloaded tower-resilience-circuitbreaker v0.9.3
[INFO] [stderr]   Downloaded tower-mcp-macros v0.12.0
[INFO] [stderr]   Downloaded tower-resilience-core v0.9.3
[INFO] [stderr]   Downloaded tower-resilience-ratelimiter v0.9.3
[INFO] [stderr]   Downloaded tower-resilience-bulkhead v0.9.3
[INFO] [stderr]   Downloaded tower-mcp-types v0.12.0
[INFO] [stderr]   Downloaded jsonwebtoken v10.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466
[INFO] running `Command { std: "docker" "start" "c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466", 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" "c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466", 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" "c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466" "/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 }`
[INFO] [stderr]     Checking memchr v2.8.1
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[INFO] [stderr]     Checking serde v1.0.228
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[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
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[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
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[INFO] [stderr]     Checking icu_locale_core v2.2.0
[INFO] [stderr]    Compiling cmake v0.1.58
[INFO] [stderr]    Compiling schemars_derive v1.2.1
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[INFO] [stderr]    Compiling aws-lc-sys v0.41.0
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[INFO] [stderr]     Checking icu_properties v2.2.0
[INFO] [stderr]     Checking icu_normalizer v2.2.0
[INFO] [stderr]     Checking tower-mcp-types v0.12.0
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[INFO] [stderr]     Checking tracing-subscriber v0.3.23
[INFO] [stderr]     Checking tower v0.5.3
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[INFO] [stderr]     Checking tokio-test v0.4.5
[INFO] [stderr]     Checking tower-http v0.6.11
[INFO] [stderr]     Checking tower-resilience-bulkhead v0.9.3
[INFO] [stderr]     Checking tower-resilience-ratelimiter v0.9.3
[INFO] [stderr]     Checking tower-resilience-coalesce v0.9.3
[INFO] [stderr]     Checking tower-resilience-circuitbreaker v0.9.3
[INFO] [stderr]     Checking tower-mcp v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tower-resilience v0.9.3
[INFO] [stderr]     Checking hyper v1.10.0
[INFO] [stderr]     Checking hyper-util v0.1.20
[INFO] [stderr]    Compiling aws-lc-rs v1.17.0
[INFO] [stderr]    Compiling rustls v0.23.40
[INFO] [stderr]     Checking rustls-webpki v0.103.13
[INFO] [stderr]     Checking tokio-rustls v0.26.4
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[INFO] [stderr]     Checking reqwest v0.13.4
[INFO] [stderr]     Checking jsonschema v0.46.5
[INFO] [stdout] error[E0432]: unresolved import `tower_mcp_types::testing`
[INFO] [stdout]    --> tests/stdio_loop.rs:16:22
[INFO] [stdout]     |
[INFO] [stdout]  16 | use tower_mcp_types::testing::assert_jsonrpc_error_response;
[INFO] [stdout]     |                      ^^^^^^^ could not find `testing` in `tower_mcp_types`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tower-mcp-types-0.12.0/src/lib.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 107 | #[cfg(feature = "testing")]
[INFO] [stdout]     |       ------------------- the item is gated behind the `testing` feature
[INFO] [stdout] 108 | pub mod testing;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Extensions`
[INFO] [stdout]   --> tests/integration.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 |     CallToolResult, Extensions, GetPromptResult, JsonRpcRequest, JsonRpcResponse, JsonRpcService,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-mcp` (test "stdio_loop") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `tower_mcp_types::testing`
[INFO] [stdout]     --> src/transport/stdio.rs:1002:26
[INFO] [stdout]      |
[INFO] [stdout] 1002 |     use tower_mcp_types::testing::assert_jsonrpc_error_response;
[INFO] [stdout]      |                          ^^^^^^^ could not find `testing` in `tower_mcp_types`
[INFO] [stdout]      |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tower-mcp-types-0.12.0/src/lib.rs:108:9
[INFO] [stdout]      |
[INFO] [stdout]  107 | #[cfg(feature = "testing")]
[INFO] [stdout]      |       ------------------- the item is gated behind the `testing` feature
[INFO] [stdout]  108 | pub mod testing;
[INFO] [stdout]      |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tower-mcp` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466", kill_on_drop: false }`
[INFO] [stdout] c4a8d8a25c202c25b5bd36a918b480681c6d1643d8efa715211a6cd75ecf3466
