[INFO] cloning repository https://github.com/teuston/mcp-server-demo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/teuston/mcp-server-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteuston%2Fmcp-server-demo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteuston%2Fmcp-server-demo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cc87bd484d02598f46fcb4363914568ed538f7c4 [INFO] checking teuston/mcp-server-demo against try#81ab7f2139295590561adbe6d5b0aaa2feff765f for pr-146470-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteuston%2Fmcp-server-demo" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/teuston/mcp-server-demo [INFO] finished tweaking git repo https://github.com/teuston/mcp-server-demo [INFO] tweaked toml for git repo https://github.com/teuston/mcp-server-demo written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/teuston/mcp-server-demo on toolchain 81ab7f2139295590561adbe6d5b0aaa2feff765f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/teuston/mcp-server-demo 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" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 02ab880f99bb03caa7d41aa5e0893a4fae91f95d2f04ae635c138440c61ede8f [INFO] running `Command { std: "docker" "start" "-a" "02ab880f99bb03caa7d41aa5e0893a4fae91f95d2f04ae635c138440c61ede8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "02ab880f99bb03caa7d41aa5e0893a4fae91f95d2f04ae635c138440c61ede8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "02ab880f99bb03caa7d41aa5e0893a4fae91f95d2f04ae635c138440c61ede8f", kill_on_drop: false }` [INFO] [stdout] 02ab880f99bb03caa7d41aa5e0893a4fae91f95d2f04ae635c138440c61ede8f [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+81ab7f2139295590561adbe6d5b0aaa2feff765f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fa932fa982820efdef61e6c1809b87e2f605c7280fc77739e5b63c94fba9aba9 [INFO] running `Command { std: "docker" "start" "-a" "fa932fa982820efdef61e6c1809b87e2f605c7280fc77739e5b63c94fba9aba9", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Checking parking_lot_core v0.9.11 [INFO] [stderr] Checking socket2 v0.5.10 [INFO] [stderr] Checking mio v1.0.4 [INFO] [stderr] Checking getrandom v0.3.3 [INFO] [stderr] Compiling schemars v0.8.22 [INFO] [stderr] Checking dyn-clone v1.0.19 [INFO] [stderr] Checking rand_core v0.9.3 [INFO] [stderr] Checking uuid v1.17.0 [INFO] [stderr] Checking rand_chacha v0.9.0 [INFO] [stderr] Checking parking_lot v0.12.4 [INFO] [stderr] Checking rand v0.9.1 [INFO] [stderr] Compiling serde_json v1.0.140 [INFO] [stderr] Compiling serde_derive_internals v0.29.1 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling tracing-attributes v0.1.28 [INFO] [stderr] Compiling thiserror-impl v2.0.12 [INFO] [stderr] Compiling rmcp-macros v0.1.5 (https://github.com/modelcontextprotocol/rust-sdk?branch=main#a66f66ae) [INFO] [stderr] Compiling schemars_derive v0.8.22 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking tokio v1.45.1 [INFO] [stderr] Checking thiserror v2.0.12 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking axum-core v0.5.2 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking sse-stream v0.2.0 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking hyper v1.6.0 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking tokio-stream v0.1.17 [INFO] [stderr] Checking tokio-util v0.7.15 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking chrono v0.4.41 [INFO] [stderr] Checking serde_path_to_error v0.1.17 [INFO] [stderr] Checking hyper-util v0.1.14 [INFO] [stderr] Checking axum v0.8.4 [INFO] [stderr] Checking rmcp v0.1.5 (https://github.com/modelcontextprotocol/rust-sdk?branch=main#a66f66ae) [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 70 | type Req: TransferObject + GetMeta + GetExtensions; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 71 | type Resp: TransferObject; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:72:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 72 | / type Not: TryInto [INFO] [stdout] 73 | | + From [INFO] [stdout] 74 | | + TransferObject; [INFO] [stdout] | |________________________^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 75 | type PeerReq: TransferObject + GetMeta + GetExtensions; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:76:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 76 | type PeerResp: TransferObject; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:77:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 77 | / type PeerNot: TryInto [INFO] [stdout] 78 | | + From [INFO] [stdout] 79 | | + TransferObject [INFO] [stdout] 80 | | + GetMeta [INFO] [stdout] 81 | | + GetExtensions; [INFO] [stdout] | |_______________________^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:84:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 84 | type Info: TransferObject; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0446]: private trait `TransferObject` in public interface [INFO] [stdout] --> /opt/rustwide/cargo-home/git/checkouts/rust-sdk-773cd6d57c4837f3/a66f66a/crates/rmcp/src/service.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 52 | / trait TransferObject: [INFO] [stdout] 53 | | std::fmt::Debug + Clone + serde::Serialize + serde::de::DeserializeOwned + Send + Sync + 'static [INFO] [stdout] | |____________________________________________________________________________________________________- `TransferObject` declared as private [INFO] [stdout] ... [INFO] [stdout] 85 | type PeerInfo: TransferObject; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't leak private trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0446`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rmcp` (lib) due to 8 previous errors [INFO] running `Command { std: "docker" "inspect" "fa932fa982820efdef61e6c1809b87e2f605c7280fc77739e5b63c94fba9aba9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa932fa982820efdef61e6c1809b87e2f605c7280fc77739e5b63c94fba9aba9", kill_on_drop: false }` [INFO] [stdout] fa932fa982820efdef61e6c1809b87e2f605c7280fc77739e5b63c94fba9aba9