[INFO] cloning repository https://github.com/cdriehuys/pi-cooler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cdriehuys/pi-cooler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdriehuys%2Fpi-cooler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdriehuys%2Fpi-cooler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f8bc22ed0b2f2551af1313f740e31742ceb347b8 [INFO] checking cdriehuys/pi-cooler 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%2Fcdriehuys%2Fpi-cooler" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config [INFO] started tweaking git repo https://github.com/cdriehuys/pi-cooler [INFO] finished tweaking git repo https://github.com/cdriehuys/pi-cooler [INFO] tweaked toml for git repo https://github.com/cdriehuys/pi-cooler written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/cdriehuys/pi-cooler 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/cdriehuys/pi-cooler 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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 775117ec14e666908a6aff4870c2aa3a44f8d8d1ffc2c2b9c796c5a80db972b4 [INFO] running `Command { std: "docker" "start" "-a" "775117ec14e666908a6aff4870c2aa3a44f8d8d1ffc2c2b9c796c5a80db972b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "775117ec14e666908a6aff4870c2aa3a44f8d8d1ffc2c2b9c796c5a80db972b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "775117ec14e666908a6aff4870c2aa3a44f8d8d1ffc2c2b9c796c5a80db972b4", kill_on_drop: false }` [INFO] [stdout] 775117ec14e666908a6aff4870c2aa3a44f8d8d1ffc2c2b9c796c5a80db972b4 [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 -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] 59d455ba711a7384782d1812e4907e91f9ab72a1e529419cd12e70ae0f678014 [INFO] running `Command { std: "docker" "start" "-a" "59d455ba711a7384782d1812e4907e91f9ab72a1e529419cd12e70ae0f678014", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.38 [INFO] [stderr] Compiling unicode-xid v0.2.3 [INFO] [stderr] Compiling syn v1.0.94 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Checking tracing-core v0.1.26 [INFO] [stderr] Checking mio v0.8.3 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling httparse v1.7.1 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking owning_ref v0.4.1 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Checking http v0.2.7 [INFO] [stderr] Checking dtoa v1.0.2 [INFO] [stderr] Checking tower-service v0.3.1 [INFO] [stderr] Checking rppal v0.13.1 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking http-body v0.4.4 [INFO] [stderr] Compiling tracing-attributes v0.1.21 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Compiling prometheus-client-derive-text-encode v0.2.0 [INFO] [stderr] Checking prometheus-client v0.16.0 [INFO] [stderr] Checking tokio v1.18.2 [INFO] [stderr] Checking tracing v0.1.34 [INFO] [stderr] Checking tokio-util v0.7.1 [INFO] [stderr] Checking h2 v0.3.13 [INFO] [stderr] Checking hyper v0.14.18 [INFO] [stderr] Checking pi-cooler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `AppState` is never constructed [INFO] [stdout] --> src/main.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | struct AppState { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:29:88 [INFO] [stdout] | [INFO] [stdout] 29 | async fn encode_metrics(registry: Arc) -> Result, Infallible> { [INFO] [stdout] | ________________________________________________________________________________________^ [INFO] [stdout] 30 | | let mut encoded_metrics = vec![]; [INFO] [stdout] 31 | | encode(&mut encoded_metrics, ®istry).unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 34 | | } [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/main.rs:29:88 [INFO] [stdout] | [INFO] [stdout] 29 | async fn encode_metrics(registry: Arc) -> Result, Infallible> { [INFO] [stdout] | ________________________________________________________________________________________^ [INFO] [stdout] 30 | | let mut encoded_metrics = vec![]; [INFO] [stdout] 31 | | encode(&mut encoded_metrics, ®istry).unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 34 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | Ok(Response::new(encoded_metrics.into())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:59:20 [INFO] [stdout] | [INFO] [stdout] 59 | async move { [INFO] [stdout] | ____________________^ [INFO] [stdout] 60 | | // service_fn converts our function into a `Service` [INFO] [stdout] 61 | | Ok::<_, Infallible>(service_fn(move |_req: Request| { [INFO] [stdout] 62 | | let registry_ref = registry_ref.clone(); [INFO] [stdout] 63 | | encode_metrics(registry_ref) [INFO] [stdout] 64 | | })) [INFO] [stdout] 65 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:61:13 [INFO] [stdout] | [INFO] [stdout] 61 | / Ok::<_, Infallible>(service_fn(move |_req: Request| { [INFO] [stdout] 62 | | let registry_ref = registry_ref.clone(); [INFO] [stdout] 63 | | encode_metrics(registry_ref) [INFO] [stdout] 64 | | })) [INFO] [stdout] | |_______________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pi-cooler` (bin "pi-cooler" test) due to 5 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: struct `AppState` is never constructed [INFO] [stdout] --> src/main.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | struct AppState { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:29:88 [INFO] [stdout] | [INFO] [stdout] 29 | async fn encode_metrics(registry: Arc) -> Result, Infallible> { [INFO] [stdout] | ________________________________________________________________________________________^ [INFO] [stdout] 30 | | let mut encoded_metrics = vec![]; [INFO] [stdout] 31 | | encode(&mut encoded_metrics, ®istry).unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 34 | | } [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/main.rs:29:88 [INFO] [stdout] | [INFO] [stdout] 29 | async fn encode_metrics(registry: Arc) -> Result, Infallible> { [INFO] [stdout] | ________________________________________________________________________________________^ [INFO] [stdout] 30 | | let mut encoded_metrics = vec![]; [INFO] [stdout] 31 | | encode(&mut encoded_metrics, ®istry).unwrap(); [INFO] [stdout] ... | [INFO] [stdout] 34 | | } [INFO] [stdout] | |_^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | Ok(Response::new(encoded_metrics.into())) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:59:20 [INFO] [stdout] | [INFO] [stdout] 59 | async move { [INFO] [stdout] | ____________________^ [INFO] [stdout] 60 | | // service_fn converts our function into a `Service` [INFO] [stdout] 61 | | Ok::<_, Infallible>(service_fn(move |_req: Request| { [INFO] [stdout] 62 | | let registry_ref = registry_ref.clone(); [INFO] [stdout] 63 | | encode_metrics(registry_ref) [INFO] [stdout] 64 | | })) [INFO] [stdout] 65 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/main.rs:61:13 [INFO] [stdout] | [INFO] [stdout] 61 | / Ok::<_, Infallible>(service_fn(move |_req: Request| { [INFO] [stdout] 62 | | let registry_ref = registry_ref.clone(); [INFO] [stdout] 63 | | encode_metrics(registry_ref) [INFO] [stdout] 64 | | })) [INFO] [stdout] | |_______________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pi-cooler` (bin "pi-cooler") due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "59d455ba711a7384782d1812e4907e91f9ab72a1e529419cd12e70ae0f678014", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59d455ba711a7384782d1812e4907e91f9ab72a1e529419cd12e70ae0f678014", kill_on_drop: false }` [INFO] [stdout] 59d455ba711a7384782d1812e4907e91f9ab72a1e529419cd12e70ae0f678014