[INFO] fetching crate prometheus-axum-middleware 0.1.1...
[INFO] checking prometheus-axum-middleware-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate prometheus-axum-middleware 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate prometheus-axum-middleware 0.1.1
[INFO] finished tweaking crates.io crate prometheus-axum-middleware 0.1.1
[INFO] tweaked toml for crates.io crate prometheus-axum-middleware 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prometheus-axum-middleware 0.1.1 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-axum-middleware 0.1.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c10eb48f35558112ac3220fde70af74b5662593fa4251de340a1f21390e70b5e
[INFO] running `Command { std: "docker" "start" "-a" "c10eb48f35558112ac3220fde70af74b5662593fa4251de340a1f21390e70b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c10eb48f35558112ac3220fde70af74b5662593fa4251de340a1f21390e70b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c10eb48f35558112ac3220fde70af74b5662593fa4251de340a1f21390e70b5e", kill_on_drop: false }`
[INFO] [stdout] c10eb48f35558112ac3220fde70af74b5662593fa4251de340a1f21390e70b5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cd03bb289a253ebb2efbd2e385434d444def1075122acdd9bb5fb4bfc5a582ad
[INFO] running `Command { std: "docker" "start" "-a" "cd03bb289a253ebb2efbd2e385434d444def1075122acdd9bb5fb4bfc5a582ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking litemap v0.8.0
[INFO] [stderr]     Checking writeable v0.6.1
[INFO] [stderr]    Compiling icu_properties_data v2.0.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking zeroize v1.8.1
[INFO] [stderr]    Compiling icu_normalizer_data v2.0.0
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling cc v1.2.26
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking tower-layer v0.3.3
[INFO] [stderr]    Compiling rustls v0.23.27
[INFO] [stderr]     Checking rustls-pki-types v1.12.0
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking ipnet v2.11.0
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling protobuf v3.7.2
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking webpki-roots v1.0.0
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking bitflags v2.9.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling prometheus v0.14.0
[INFO] [stderr]     Checking iri-string v0.7.8
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking matchit v0.8.4
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.103
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]     Checking http-body-util v0.1.3
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_path_to_error v0.1.17
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling prost-derive v0.13.5
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]     Checking rustls-webpki v0.103.3
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]     Checking prost v0.13.5
[INFO] [stderr]     Checking protobuf-support v3.7.2
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking axum-core v0.5.2
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking tower v0.5.2
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking tower-http v0.6.6
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking hyper-util v0.1.14
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking tokio-rustls v0.26.2
[INFO] [stderr]     Checking hyper-rustls v0.27.7
[INFO] [stderr]     Checking axum v0.8.4
[INFO] [stderr]     Checking reqwest v0.12.20
[INFO] [stderr]     Checking prometheus-reqwest-remote-write v0.4.0
[INFO] [stderr]     Checking prometheus-axum-middleware v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:365:24
[INFO] [stdout]     |
[INFO] [stdout] 365 |           let response = app
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 366 | |             .oneshot(
[INFO] [stdout] 367 | |                 Request::builder()
[INFO] [stdout] 368 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 373 | |             .await
[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<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:373:14
[INFO] [stdout]     |
[INFO] [stdout] 373 |             .await
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:365:24
[INFO] [stdout]     |
[INFO] [stdout] 365 |           let response = app
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 366 | |             .oneshot(
[INFO] [stdout] 367 | |                 Request::builder()
[INFO] [stdout] 368 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 373 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:402:24
[INFO] [stdout]     |
[INFO] [stdout] 402 |           let response = app
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 403 | |             .oneshot(
[INFO] [stdout] 404 | |                 Request::builder()
[INFO] [stdout] 405 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 410 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:410:14
[INFO] [stdout]     |
[INFO] [stdout] 410 |             .await
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:402:24
[INFO] [stdout]     |
[INFO] [stdout] 402 |           let response = app
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 403 | |             .oneshot(
[INFO] [stdout] 404 | |                 Request::builder()
[INFO] [stdout] 405 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 410 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:424:24
[INFO] [stdout]     |
[INFO] [stdout] 424 |           let response = app
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 425 | |             .oneshot(
[INFO] [stdout] 426 | |                 Request::builder()
[INFO] [stdout] 427 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 432 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:432:14
[INFO] [stdout]     |
[INFO] [stdout] 432 |             .await
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:424:24
[INFO] [stdout]     |
[INFO] [stdout] 424 |           let response = app
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 425 | |             .oneshot(
[INFO] [stdout] 426 | |                 Request::builder()
[INFO] [stdout] 427 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 432 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:450:24
[INFO] [stdout]     |
[INFO] [stdout] 450 |           let response = app.clone()
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 451 | |             .oneshot(
[INFO] [stdout] 452 | |                 Request::builder()
[INFO] [stdout] 453 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 458 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:458:14
[INFO] [stdout]     |
[INFO] [stdout] 458 |             .await
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<axum::http::Response<axum::body::Body>, Infallible>
[INFO] [stdout]    --> src/lib.rs:450:24
[INFO] [stdout]     |
[INFO] [stdout] 450 |           let response = app.clone()
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 451 | |             .oneshot(
[INFO] [stdout] 452 | |                 Request::builder()
[INFO] [stdout] 453 | |                     .method("GET")
[INFO] [stdout] ...   |
[INFO] [stdout] 458 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, Infallible>
[INFO] [stdout]    --> src/lib.rs:494:36
[INFO] [stdout]     |
[INFO] [stdout] 494 |                           async move {
[INFO] [stdout]     |  ____________________________________^
[INFO] [stdout] 495 | |                             // Capture headers
[INFO] [stdout] 496 | |                             let headers = req.headers().clone();
[INFO] [stdout] 497 | |                             let (_, body) = req.into_parts();
[INFO] [stdout] ...   |
[INFO] [stdout] 503 | |                             Ok::<_, std::convert::Infallible>("ok")
[INFO] [stdout] 504 | |                         }
[INFO] [stdout]     | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, Infallible>
[INFO] [stdout]    --> src/lib.rs:503:29
[INFO] [stdout]     |
[INFO] [stdout] 503 | ...                   Ok::<_, std::convert::Infallible>("ok")
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prometheus-axum-middleware` (lib test) due to 14 previous errors
[INFO] running `Command { std: "docker" "inspect" "cd03bb289a253ebb2efbd2e385434d444def1075122acdd9bb5fb4bfc5a582ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd03bb289a253ebb2efbd2e385434d444def1075122acdd9bb5fb4bfc5a582ad", kill_on_drop: false }`
[INFO] [stdout] cd03bb289a253ebb2efbd2e385434d444def1075122acdd9bb5fb4bfc5a582ad
