[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 }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling unicode-ident v1.0.19 [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Checking pin-project-lite v0.2.16 [INFO] [stderr] Checking cfg-if v1.0.3 [INFO] [stderr] Checking bytes v1.10.1 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Checking itoa v1.0.15 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking once_cell v1.21.3 [INFO] [stderr] Checking slab v0.4.11 [INFO] [stderr] Checking memchr v2.7.6 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Compiling find-msvc-tools v0.1.2 [INFO] [stderr] Compiling pkg-config v0.3.32 [INFO] [stderr] Checking futures-task v0.3.31 [INFO] [stderr] Checking futures-io v0.3.31 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling vcpkg v0.2.15 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Checking equivalent v1.0.2 [INFO] [stderr] Checking litemap v0.8.0 [INFO] [stderr] Checking hashbrown v0.16.0 [INFO] [stderr] Checking writeable v0.6.1 [INFO] [stderr] Compiling cc v1.2.39 [INFO] [stderr] Checking tracing-core v0.1.34 [INFO] [stderr] Compiling httparse v1.10.1 [INFO] [stderr] Compiling icu_properties_data v2.0.1 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling icu_normalizer_data v2.0.0 [INFO] [stderr] Checking indexmap v2.11.4 [INFO] [stderr] Compiling strsim v0.11.1 [INFO] [stderr] Checking tower-service v0.3.3 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Checking try-lock v0.2.5 [INFO] [stderr] Checking bitflags v2.9.4 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking percent-encoding v2.3.2 [INFO] [stderr] Compiling openssl v0.10.73 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking http v1.3.1 [INFO] [stderr] Compiling native-tls v0.2.14 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Checking atomic-waker v1.1.2 [INFO] [stderr] Checking log v0.4.28 [INFO] [stderr] Checking utf8parse v0.2.2 [INFO] [stderr] Checking ryu v1.0.20 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Checking openssl-probe v0.1.6 [INFO] [stderr] Checking anstyle-parse v0.2.7 [INFO] [stderr] Checking form_urlencoded v1.2.2 [INFO] [stderr] Checking sync_wrapper v1.0.2 [INFO] [stderr] Checking colorchoice v1.0.4 [INFO] [stderr] Compiling thiserror v2.0.16 [INFO] [stderr] Checking utf8_iter v1.0.4 [INFO] [stderr] Checking anstyle v1.0.11 [INFO] [stderr] Checking tower-layer v0.3.3 [INFO] [stderr] Checking ipnet v2.11.0 [INFO] [stderr] Compiling protobuf v3.7.2 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Checking base64 v0.22.1 [INFO] [stderr] Checking anstyle-query v1.1.4 [INFO] [stderr] Checking is_terminal_polyfill v1.70.1 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Checking anstream v0.6.20 [INFO] [stderr] Checking clap_lex v0.7.5 [INFO] [stderr] Compiling prometheus v0.14.0 [INFO] [stderr] Checking iri-string v0.7.8 [INFO] [stderr] Compiling signal-hook v0.3.18 [INFO] [stderr] Checking zeroize v1.8.1 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Checking encoding_rs v0.8.35 [INFO] [stderr] Checking clap_builder v4.5.48 [INFO] [stderr] Checking http-body v1.0.1 [INFO] [stderr] Checking rustls-pki-types v1.12.0 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Checking signal-hook-registry v1.4.6 [INFO] [stderr] Checking socket2 v0.6.0 [INFO] [stderr] Checking mio v1.0.4 [INFO] [stderr] Checking http-body-util v0.1.3 [INFO] [stderr] Checking socket2 v0.5.10 [INFO] [stderr] Checking lazy_static v1.5.0 [INFO] [stderr] Checking httpdate v1.0.3 [INFO] [stderr] Checking parking_lot v0.12.4 [INFO] [stderr] Checking mime v0.3.17 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Compiling openssl-sys v0.9.109 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Compiling darling_core v0.21.3 [INFO] [stderr] Compiling zerovec-derive v0.11.1 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling displaydoc v0.2.5 [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 [INFO] [stderr] Compiling thiserror-impl v2.0.16 [INFO] [stderr] Compiling clap_derive v4.5.47 [INFO] [stderr] Compiling rpc-router-macros v0.1.0 [INFO] [stderr] Compiling async-trait v0.1.89 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.8.0 [INFO] [stderr] Compiling darling_macro v0.21.3 [INFO] [stderr] Checking tokio v1.47.1 [INFO] [stderr] Compiling darling v0.21.3 [INFO] [stderr] Compiling serde_with_macros v3.14.1 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking protobuf-support v3.7.2 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking clap v4.5.48 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking yoke v0.8.0 [INFO] [stderr] Checking zerovec v0.11.4 [INFO] [stderr] Checking zerotrie v0.2.2 [INFO] [stderr] Checking tokio-util v0.7.16 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking hyper v0.14.32 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking serde_with v3.14.1 [INFO] [stderr] Checking tinystr v0.8.1 [INFO] [stderr] Checking potential_utf v0.1.3 [INFO] [stderr] Checking h2 v0.4.12 [INFO] [stderr] Checking icu_collections v2.0.0 [INFO] [stderr] Checking tower-http v0.6.6 [INFO] [stderr] Checking icu_locale_core v2.0.0 [INFO] [stderr] Checking icu_provider v2.0.0 [INFO] [stderr] Checking icu_normalizer v2.0.0 [INFO] [stderr] Checking icu_properties v2.0.1 [INFO] [stderr] Checking rpc-router v0.1.3 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking url v2.5.7 [INFO] [stderr] Checking hyper v1.7.0 [INFO] [stderr] Checking hyper-util v0.1.17 [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, Infallible> [INFO] [stdout] --> src/mcp/exporter.rs:11:85 [INFO] [stdout] | [INFO] [stdout] 11 | async fn metrics_handler(_req: Request) -> Result, 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, Infallible> [INFO] [stdout] --> src/mcp/exporter.rs:11:85 [INFO] [stdout] | [INFO] [stdout] 11 | async fn metrics_handler(_req: Request) -> Result, 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, 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) -> impl Future, 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) -> impl Future, 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, Infallible> [INFO] [stdout] --> src/mcp/exporter.rs:11:85 [INFO] [stdout] | [INFO] [stdout] 11 | async fn metrics_handler(_req: Request) -> Result, 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, Infallible> [INFO] [stdout] --> src/mcp/exporter.rs:11:85 [INFO] [stdout] | [INFO] [stdout] 11 | async fn metrics_handler(_req: Request) -> Result, 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, 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) -> impl Future, 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) -> impl Future, 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