[INFO] cloning repository https://github.com/davirieser/codecrafters-http-server-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davirieser/codecrafters-http-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavirieser%2Fcodecrafters-http-server-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavirieser%2Fcodecrafters-http-server-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 21917646c2326cea2dc9ceaa873dcd9c18f8163b [INFO] checking davirieser/codecrafters-http-server-rust against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavirieser%2Fcodecrafters-http-server-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/davirieser/codecrafters-http-server-rust [INFO] finished tweaking git repo https://github.com/davirieser/codecrafters-http-server-rust [INFO] tweaked toml for git repo https://github.com/davirieser/codecrafters-http-server-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/davirieser/codecrafters-http-server-rust on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/davirieser/codecrafters-http-server-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 695ac2052cdcfda9afbf5c36ffc4538abccdb12bbe2e5a4a633702296e994027 [INFO] running `Command { std: "docker" "start" "-a" "695ac2052cdcfda9afbf5c36ffc4538abccdb12bbe2e5a4a633702296e994027", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "695ac2052cdcfda9afbf5c36ffc4538abccdb12bbe2e5a4a633702296e994027", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "695ac2052cdcfda9afbf5c36ffc4538abccdb12bbe2e5a4a633702296e994027", kill_on_drop: false }` [INFO] [stdout] 695ac2052cdcfda9afbf5c36ffc4538abccdb12bbe2e5a4a633702296e994027 [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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 931fc9b66db1f91eb1aeab4a4081435cc54192ac3372f9a7cb2a2c1eefffb32a [INFO] running `Command { std: "docker" "start" "-a" "931fc9b66db1f91eb1aeab4a4081435cc54192ac3372f9a7cb2a2c1eefffb32a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Compiling anyhow v1.0.68 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Checking pin-project-lite v0.2.10 [INFO] [stderr] Checking yansi v0.5.1 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking itertools v0.11.0 [INFO] [stderr] Checking pretty_assertions v1.4.0 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Compiling quote v1.0.32 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Compiling syn v2.0.27 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Compiling thiserror-impl v1.0.38 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking thiserror v1.0.38 [INFO] [stderr] Checking http-server-starter-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Request` is never constructed [INFO] [stdout] --> src/main.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct Request<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `HeaderValue` is never used [INFO] [stdout] --> src/main.rs:75:6 [INFO] [stdout] | [INFO] [stdout] 75 | enum HeaderValue<'a> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `RouteError` is never used [INFO] [stdout] --> src/main.rs:156:6 [INFO] [stdout] | [INFO] [stdout] 156 | enum RouteError { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RouteDefinition` is never constructed [INFO] [stdout] --> src/main.rs:172:8 [INFO] [stdout] | [INFO] [stdout] 172 | struct RouteDefinition [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Route` is never constructed [INFO] [stdout] --> src/main.rs:181:8 [INFO] [stdout] | [INFO] [stdout] 181 | struct Route [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:292:21 [INFO] [stdout] | [INFO] [stdout] 292 | Response::from(HttpStatusCode::BadRequest).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 292 | let _ = Response::from(HttpStatusCode::BadRequest).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:312:21 [INFO] [stdout] | [INFO] [stdout] 312 | Response::from(HttpStatusCode::Ok).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 312 | let _ = Response::from(HttpStatusCode::Ok).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:328:29 [INFO] [stdout] | [INFO] [stdout] 328 | ... response.write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 328 | let _ = response.write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:331:29 [INFO] [stdout] | [INFO] [stdout] 331 | ... Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 331 | let _ = Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:348:21 [INFO] [stdout] | [INFO] [stdout] 348 | response.write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = response.write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Request` is never constructed [INFO] [stdout] --> src/main.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | struct Request<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `HeaderValue` is never used [INFO] [stdout] --> src/main.rs:75:6 [INFO] [stdout] | [INFO] [stdout] 75 | enum HeaderValue<'a> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `RouteError` is never used [INFO] [stdout] --> src/main.rs:156:6 [INFO] [stdout] | [INFO] [stdout] 156 | enum RouteError { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `RouteDefinition` is never constructed [INFO] [stdout] --> src/main.rs:172:8 [INFO] [stdout] | [INFO] [stdout] 172 | struct RouteDefinition [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Route` is never constructed [INFO] [stdout] --> src/main.rs:181:8 [INFO] [stdout] | [INFO] [stdout] 181 | struct Route [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:354:33 [INFO] [stdout] | [INFO] [stdout] 354 | ... send_file(&mut stream, path, dir).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 354 | let _ = send_file(&mut stream, path, dir).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:356:33 [INFO] [stdout] | [INFO] [stdout] 356 | ... save_file(&mut stream, path, dir, body).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 356 | let _ = save_file(&mut stream, path, dir, body).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:360:29 [INFO] [stdout] | [INFO] [stdout] 360 | ... Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 360 | let _ = Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:365:21 [INFO] [stdout] | [INFO] [stdout] 365 | Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 365 | let _ = Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:292:21 [INFO] [stdout] | [INFO] [stdout] 292 | Response::from(HttpStatusCode::BadRequest).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 292 | let _ = Response::from(HttpStatusCode::BadRequest).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:312:21 [INFO] [stdout] | [INFO] [stdout] 312 | Response::from(HttpStatusCode::Ok).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 312 | let _ = Response::from(HttpStatusCode::Ok).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:328:29 [INFO] [stdout] | [INFO] [stdout] 328 | ... response.write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 328 | let _ = response.write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:331:29 [INFO] [stdout] | [INFO] [stdout] 331 | ... Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 331 | let _ = Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:348:21 [INFO] [stdout] | [INFO] [stdout] 348 | response.write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 348 | let _ = response.write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:354:33 [INFO] [stdout] | [INFO] [stdout] 354 | ... send_file(&mut stream, path, dir).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 354 | let _ = send_file(&mut stream, path, dir).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:356:33 [INFO] [stdout] | [INFO] [stdout] 356 | ... save_file(&mut stream, path, dir, body).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 356 | let _ = save_file(&mut stream, path, dir, body).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:360:29 [INFO] [stdout] | [INFO] [stdout] 360 | ... Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 360 | let _ = Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:365:21 [INFO] [stdout] | [INFO] [stdout] 365 | Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 365 | let _ = Response::from(HttpStatusCode::NotFound).write_to(&mut stream).await; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.77s [INFO] running `Command { std: "docker" "inspect" "931fc9b66db1f91eb1aeab4a4081435cc54192ac3372f9a7cb2a2c1eefffb32a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "931fc9b66db1f91eb1aeab4a4081435cc54192ac3372f9a7cb2a2c1eefffb32a", kill_on_drop: false }` [INFO] [stdout] 931fc9b66db1f91eb1aeab4a4081435cc54192ac3372f9a7cb2a2c1eefffb32a