[INFO] fetching crate prometheus-mcp 0.0.1...
[INFO] checking prometheus-mcp-0.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate prometheus-mcp 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate prometheus-mcp 0.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate prometheus-mcp 0.0.1
[INFO] tweaked toml for crates.io crate prometheus-mcp 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prometheus-mcp 0.0.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate prometheus-mcp 0.0.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1847512cdfe133afe3311d209f5fa01b7af6bd3889258797dd6f4eaf18f3c43
[INFO] running `Command { std: "docker" "start" "-a" "b1847512cdfe133afe3311d209f5fa01b7af6bd3889258797dd6f4eaf18f3c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1847512cdfe133afe3311d209f5fa01b7af6bd3889258797dd6f4eaf18f3c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1847512cdfe133afe3311d209f5fa01b7af6bd3889258797dd6f4eaf18f3c43", kill_on_drop: false }`
[INFO] [stdout] b1847512cdfe133afe3311d209f5fa01b7af6bd3889258797dd6f4eaf18f3c43
[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=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3255394fbe2d426143dca38c5c0182db1ed8cb692c41cd8c29954c39f4a4cf6b
[INFO] running `Command { std: "docker" "start" "-a" "3255394fbe2d426143dca38c5c0182db1ed8cb692c41cd8c29954c39f4a4cf6b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
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[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
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[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling serde_with_macros v3.14.1
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[INFO] [stderr]     Checking serde_urlencoded v0.7.1
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[INFO] [stderr]     Checking tinystr v0.8.1
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[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking hyper v1.7.0
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[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking reqwest v0.12.23
[INFO] [stderr]     Checking prometheus-mcp v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::Response<hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:11:85
[INFO] [stdout]    |
[INFO] [stdout] 11 |   async fn metrics_handler(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________________________________^
[INFO] [stdout] 12 | |     let metrics = metrics::get_metrics_as_string();
[INFO] [stdout] 13 | |     Ok(Response::new(Body::from(metrics)))
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::Response<hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:11:85
[INFO] [stdout]    |
[INFO] [stdout] 11 |   async fn metrics_handler(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________________________________^
[INFO] [stdout] 12 | |     let metrics = metrics::get_metrics_as_string();
[INFO] [stdout] 13 | |     Ok(Response::new(Body::from(metrics)))
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::Response<hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Ok(Response::new(Body::from(metrics)))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<service::util::ServiceFn<fn(hyper::Request<hyper::Body>) -> impl Future<Output = Result<hyper::Response<hyper::Body>, Infallible>> {metrics_handler}, hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:23:39
[INFO] [stdout]    |
[INFO] [stdout] 23 |         make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(metrics_handler)) });
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<service::util::ServiceFn<fn(hyper::Request<hyper::Body>) -> impl Future<Output = Result<hyper::Response<hyper::Body>, Infallible>> {metrics_handler}, hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 |         make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(metrics_handler)) });
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::Response<hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:11:85
[INFO] [stdout]    |
[INFO] [stdout] 11 |   async fn metrics_handler(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________________________________^
[INFO] [stdout] 12 | |     let metrics = metrics::get_metrics_as_string();
[INFO] [stdout] 13 | |     Ok(Response::new(Body::from(metrics)))
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::Response<hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:11:85
[INFO] [stdout]    |
[INFO] [stdout] 11 |   async fn metrics_handler(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________________________________^
[INFO] [stdout] 12 | |     let metrics = metrics::get_metrics_as_string();
[INFO] [stdout] 13 | |     Ok(Response::new(Body::from(metrics)))
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::Response<hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Ok(Response::new(Body::from(metrics)))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<service::util::ServiceFn<fn(hyper::Request<hyper::Body>) -> impl Future<Output = Result<hyper::Response<hyper::Body>, Infallible>> {metrics_handler}, hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:23:39
[INFO] [stdout]    |
[INFO] [stdout] 23 |         make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(metrics_handler)) });
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<service::util::ServiceFn<fn(hyper::Request<hyper::Body>) -> impl Future<Output = Result<hyper::Response<hyper::Body>, Infallible>> {metrics_handler}, hyper::Body>, Infallible>
[INFO] [stdout]   --> src/mcp/exporter.rs:23:41
[INFO] [stdout]    |
[INFO] [stdout] 23 |         make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(metrics_handler)) });
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prometheus-mcp` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `prometheus-mcp` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "3255394fbe2d426143dca38c5c0182db1ed8cb692c41cd8c29954c39f4a4cf6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3255394fbe2d426143dca38c5c0182db1ed8cb692c41cd8c29954c39f4a4cf6b", kill_on_drop: false }`
[INFO] [stdout] 3255394fbe2d426143dca38c5c0182db1ed8cb692c41cd8c29954c39f4a4cf6b
