[INFO] cloning repository https://github.com/kiga-hub/metrics_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kiga-hub/metrics_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkiga-hub%2Fmetrics_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkiga-hub%2Fmetrics_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c50895a581c23e0ab0b70b189ffc41eec0213be1
[INFO] checking kiga-hub/metrics_rust against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkiga-hub%2Fmetrics_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kiga-hub/metrics_rust
[INFO] finished tweaking git repo https://github.com/kiga-hub/metrics_rust
[INFO] tweaked toml for git repo https://github.com/kiga-hub/metrics_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kiga-hub/metrics_rust 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 git repo https://github.com/kiga-hub/metrics_rust 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2ceb15a920d8a6cde1506c7b1337b0e170a32941f368cf6f06acdcdc8657d726
[INFO] running `Command { std: "docker" "start" "-a" "2ceb15a920d8a6cde1506c7b1337b0e170a32941f368cf6f06acdcdc8657d726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ceb15a920d8a6cde1506c7b1337b0e170a32941f368cf6f06acdcdc8657d726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ceb15a920d8a6cde1506c7b1337b0e170a32941f368cf6f06acdcdc8657d726", kill_on_drop: false }`
[INFO] [stdout] 2ceb15a920d8a6cde1506c7b1337b0e170a32941f368cf6f06acdcdc8657d726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0e0e3e7cc94e4761216ced8266d30d2e0221ff374addcec206f0ebf1de77b916
[INFO] running `Command { std: "docker" "start" "-a" "0e0e3e7cc94e4761216ced8266d30d2e0221ff374addcec206f0ebf1de77b916", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]    Compiling prometheus v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling tokio-macros v2.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]     Checking tokio v1.38.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking h2 v0.3.24
[INFO] [stderr]     Checking hyper v0.14.29
[INFO] [stderr]     Checking export v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:13:79
[INFO] [stdout]    |
[INFO] [stdout] 13 |   async fn serve_req(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 14 | |     let encoder = TextEncoder::new();
[INFO] [stdout] 15 | |     let metric_families = prometheus::gather();
[INFO] [stdout] 16 | |     let mut buffer = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     Ok(Response::new(Body::from(buffer)))
[INFO] [stdout] 20 | | }
[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<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:13:79
[INFO] [stdout]    |
[INFO] [stdout] 13 |   async fn serve_req(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 14 | |     let encoder = TextEncoder::new();
[INFO] [stdout] 15 | |     let metric_families = prometheus::gather();
[INFO] [stdout] 16 | |     let mut buffer = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     Ok(Response::new(Body::from(buffer)))
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Ok(Response::new(Body::from(buffer)))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {serve_req}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |         async { Ok::<_, Infallible>(service_fn(serve_req)) }
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {serve_req}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |         async { Ok::<_, Infallible>(service_fn(serve_req)) }
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `export` (bin "export" test) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `export` (bin "export") due to 5 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:13:79
[INFO] [stdout]    |
[INFO] [stdout] 13 |   async fn serve_req(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 14 | |     let encoder = TextEncoder::new();
[INFO] [stdout] 15 | |     let metric_families = prometheus::gather();
[INFO] [stdout] 16 | |     let mut buffer = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     Ok(Response::new(Body::from(buffer)))
[INFO] [stdout] 20 | | }
[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<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:13:79
[INFO] [stdout]    |
[INFO] [stdout] 13 |   async fn serve_req(_req: Request<Body>) -> Result<Response<Body>, Infallible> {
[INFO] [stdout]    |  _______________________________________________________________________________^
[INFO] [stdout] 14 | |     let encoder = TextEncoder::new();
[INFO] [stdout] 15 | |     let metric_families = prometheus::gather();
[INFO] [stdout] 16 | |     let mut buffer = vec![];
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     Ok(Response::new(Body::from(buffer)))
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Response<Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Ok(Response::new(Body::from(buffer)))
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {serve_req}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |         async { Ok::<_, Infallible>(service_fn(serve_req)) }
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<hyper::service::util::ServiceFn<fn(hyper::Request<Body>) -> impl Future<Output = Result<Response<Body>, Infallible>> {serve_req}, Body>, Infallible>
[INFO] [stdout]   --> src/main.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |         async { Ok::<_, Infallible>(service_fn(serve_req)) }
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0e0e3e7cc94e4761216ced8266d30d2e0221ff374addcec206f0ebf1de77b916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e0e3e7cc94e4761216ced8266d30d2e0221ff374addcec206f0ebf1de77b916", kill_on_drop: false }`
[INFO] [stdout] 0e0e3e7cc94e4761216ced8266d30d2e0221ff374addcec206f0ebf1de77b916
