[INFO] cloning repository https://github.com/martynaturczak/RustSolver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martynaturczak/RustSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartynaturczak%2FRustSolver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartynaturczak%2FRustSolver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] aa6fb43f6b704f823230b0292e28d4334c65d68f [INFO] checking martynaturczak/RustSolver against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartynaturczak%2FRustSolver" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/martynaturczak/RustSolver [INFO] finished tweaking git repo https://github.com/martynaturczak/RustSolver [INFO] tweaked toml for git repo https://github.com/martynaturczak/RustSolver written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/martynaturczak/RustSolver on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/martynaturczak/RustSolver 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded windows-core v0.57.0 [INFO] [stderr] Downloaded windows-implement v0.57.0 [INFO] [stderr] Downloaded windows-interface v0.57.0 [INFO] [stderr] Downloaded sorting_rs v1.2.10 [INFO] [stderr] Downloaded axum-core v0.4.5 [INFO] [stderr] Downloaded tower v0.5.1 [INFO] [stderr] Downloaded tower-http v0.6.1 [INFO] [stderr] Downloaded axum v0.7.7 [INFO] [stderr] Downloaded sysinfo v0.32.0 [INFO] [stderr] Downloaded rustix v0.38.38 [INFO] [stderr] Downloaded windows v0.57.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2850a1a9a502adb95faafc1e90b915d38e4aa6ca9e44428d78db56d02dba806e [INFO] running `Command { std: "docker" "start" "-a" "2850a1a9a502adb95faafc1e90b915d38e4aa6ca9e44428d78db56d02dba806e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2850a1a9a502adb95faafc1e90b915d38e4aa6ca9e44428d78db56d02dba806e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2850a1a9a502adb95faafc1e90b915d38e4aa6ca9e44428d78db56d02dba806e", kill_on_drop: false }` [INFO] [stdout] 2850a1a9a502adb95faafc1e90b915d38e4aa6ca9e44428d78db56d02dba806e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 11720337fb5c84747ab5c1acee44168c6eb2c4a9aeb9ecf1e188434179d94528 [INFO] running `Command { std: "docker" "start" "-a" "11720337fb5c84747ab5c1acee44168c6eb2c4a9aeb9ecf1e188434179d94528", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.89 [INFO] [stderr] Compiling unicode-ident v1.0.13 [INFO] [stderr] Compiling libc v0.2.161 [INFO] [stderr] Checking bytes v1.8.0 [INFO] [stderr] Checking pin-project-lite v0.2.15 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Checking once_cell v1.20.2 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking futures-task v0.3.31 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling pkg-config v0.3.31 [INFO] [stderr] Compiling vcpkg v0.2.15 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Compiling cc v1.1.31 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling httparse v1.9.5 [INFO] [stderr] Checking tower-service v0.3.3 [INFO] [stderr] Checking http v1.1.0 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling serde v1.0.213 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling autocfg v1.4.0 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling syn v2.0.85 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling openssl v0.10.68 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Checking httpdate v1.0.3 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking http-body v1.0.1 [INFO] [stderr] Checking http v0.2.12 [INFO] [stderr] Checking percent-encoding v2.3.1 [INFO] [stderr] Checking mio v1.0.2 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Checking hashbrown v0.15.0 [INFO] [stderr] Checking equivalent v1.0.1 [INFO] [stderr] Compiling openssl-sys v0.9.104 [INFO] [stderr] Compiling native-tls v0.2.12 [INFO] [stderr] Checking tinyvec v1.8.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking form_urlencoded v1.2.1 [INFO] [stderr] Checking try-lock v0.2.5 [INFO] [stderr] Checking openssl-probe v0.1.5 [INFO] [stderr] Compiling serde_json v1.0.132 [INFO] [stderr] Compiling rustversion v1.0.18 [INFO] [stderr] Checking tower-layer v0.3.3 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking indexmap v2.6.0 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Checking http-body v0.4.6 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking unicode-normalization v0.1.24 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking mime v0.3.17 [INFO] [stderr] Checking unicode-bidi v0.3.17 [INFO] [stderr] Checking sync_wrapper v0.1.2 [INFO] [stderr] Checking http-body-util v0.1.2 [INFO] [stderr] Checking base64 v0.21.7 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking idna v0.5.0 [INFO] [stderr] Checking sync_wrapper v1.0.1 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking rustls-pemfile v1.0.4 [INFO] [stderr] Checking encoding_rs v0.8.35 [INFO] [stderr] Checking matchit v0.7.3 [INFO] [stderr] Checking ipnet v2.10.1 [INFO] [stderr] Checking tower-http v0.6.1 [INFO] [stderr] Checking url v2.5.2 [INFO] [stderr] Checking uuid v1.11.0 [INFO] [stderr] Checking sorting_rs v1.2.10 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking serde_path_to_error v0.1.16 [INFO] [stderr] Compiling tokio-macros v2.4.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling async-trait v0.1.83 [INFO] [stderr] Compiling serde_derive v1.0.213 [INFO] [stderr] Checking sysinfo v0.32.0 [INFO] [stderr] Checking tokio v1.41.0 [INFO] [stderr] Checking axum-core v0.4.5 [INFO] [stderr] Checking tokio-util v0.7.12 [INFO] [stderr] Checking hyper v1.5.0 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking tower v0.5.1 [INFO] [stderr] Checking h2 v0.3.26 [INFO] [stderr] Checking hyper-util v0.1.9 [INFO] [stderr] Checking axum v0.7.7 [INFO] [stderr] Checking hyper v0.14.31 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.27 [INFO] [stderr] Checking rust-sort-solver v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:8:29 [INFO] [stdout] | [INFO] [stdout] 8 | fn merge_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:15:29 [INFO] [stdout] | [INFO] [stdout] 15 | fn quick_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:22:33 [INFO] [stdout] | [INFO] [stdout] 22 | fn insertion_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:30:28 [INFO] [stdout] | [INFO] [stdout] 30 | fn heap_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let mut sorted_dataset = dataset.unsorted_dataset.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Json` that must be used [INFO] [stdout] --> src/handler.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | Json(json_response); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 19 | let _ = Json(json_response); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 12 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 19 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 27 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 34 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:8:29 [INFO] [stdout] | [INFO] [stdout] 8 | fn merge_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:15:29 [INFO] [stdout] | [INFO] [stdout] 15 | fn quick_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:22:33 [INFO] [stdout] | [INFO] [stdout] 22 | fn insertion_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:30:28 [INFO] [stdout] | [INFO] [stdout] 30 | fn heap_sort_decorator(mut arr: Vec) { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/benchmark_service.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let mut sorted_dataset = dataset.unsorted_dataset.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `axum::Json` that must be used [INFO] [stdout] --> src/handler.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | Json(json_response); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 19 | let _ = Json(json_response); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 12 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 19 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 27 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `collect` that must be used [INFO] [stdout] --> src/benchmark_service.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 34 | let _ = arr_refs.into_iter().map(|s| s.to_string()).collect::>(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 00s [INFO] running `Command { std: "docker" "inspect" "11720337fb5c84747ab5c1acee44168c6eb2c4a9aeb9ecf1e188434179d94528", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11720337fb5c84747ab5c1acee44168c6eb2c4a9aeb9ecf1e188434179d94528", kill_on_drop: false }` [INFO] [stdout] 11720337fb5c84747ab5c1acee44168c6eb2c4a9aeb9ecf1e188434179d94528