[INFO] cloning repository https://github.com/ffelipelimao/rust-overview [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ffelipelimao/rust-overview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fffelipelimao%2Frust-overview", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fffelipelimao%2Frust-overview'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6e3db7c1ef05e24d871162cd3dc08e100687504a [INFO] checking ffelipelimao/rust-overview against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fffelipelimao%2Frust-overview" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ffelipelimao/rust-overview on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ffelipelimao/rust-overview [INFO] finished tweaking git repo https://github.com/ffelipelimao/rust-overview [INFO] tweaked toml for git repo https://github.com/ffelipelimao/rust-overview written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ffelipelimao/rust-overview 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" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rust_decimal_macros v1.36.0 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ebc12d6e0b3ce233f2b7911cb23024d2388cffb6a8adecd65489f39d2f4a7c16 [INFO] running `Command { std: "docker" "start" "-a" "ebc12d6e0b3ce233f2b7911cb23024d2388cffb6a8adecd65489f39d2f4a7c16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ebc12d6e0b3ce233f2b7911cb23024d2388cffb6a8adecd65489f39d2f4a7c16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebc12d6e0b3ce233f2b7911cb23024d2388cffb6a8adecd65489f39d2f4a7c16", kill_on_drop: false }` [INFO] [stdout] ebc12d6e0b3ce233f2b7911cb23024d2388cffb6a8adecd65489f39d2f4a7c16 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f0fb50dbeea6fb79c64f5d61059c79af6df8e9a5be32c07478dab52ef553014d [INFO] running `Command { std: "docker" "start" "-a" "f0fb50dbeea6fb79c64f5d61059c79af6df8e9a5be32c07478dab52ef553014d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.13 [INFO] [stderr] Compiling rust_decimal v1.36.0 [INFO] [stderr] Compiling serde v1.0.210 [INFO] [stderr] Compiling arrayvec v0.7.6 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling rust_decimal_macros v1.36.0 [INFO] [stderr] Checking rust-overview v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rust_decimal_macros::dec` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rust_decimal_macros::dec; //importando apenas o dec [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:213:20 [INFO] [stdout] | [INFO] [stdout] 213 | break; number_loops * 20; [INFO] [stdout] | ----- ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | | [INFO] [stdout] | any code following this expression is unreachable [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let a: i32 = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let b: u32 = 10; // unsigned int (only positives numbers) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let c: f32 = 2.3; // float 32 bits range [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let d = 2.3_f32; //you can declare numbers like that [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let e = 19 as f32; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let g: char = 'h'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let j = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `new_slices` is assigned to, but never used [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut new_slices: i32 = 23; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_new_slices` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_slices` is never read [INFO] [stdout] --> src/main.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | new_slices += 1; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `big` [INFO] [stdout] --> src/main.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let big = 1_000; // one thousand [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_big` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/main.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 67 | let first = data_infer[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_element` [INFO] [stdout] --> src/main.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let last_element: i32 = data_infer[data_infer.len() -1]; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name2` [INFO] [stdout] --> src/main.rs:80:9 [INFO] [stdout] | [INFO] [stdout] 80 | let name2: &str = "Luiz Felipe"; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_name2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name_static` [INFO] [stdout] --> src/main.rs:82:9 [INFO] [stdout] | [INFO] [stdout] 82 | let name_static: &'static str = "Estatico"; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_static` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `full_name` [INFO] [stdout] --> src/main.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let full_name = format!("{first_name} Limao"); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_full_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `numbers_vec` [INFO] [stdout] --> src/main.rs:151:13 [INFO] [stdout] | [INFO] [stdout] 151 | let mut numbers_vec = numbers_array.to_vec(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers_vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `character` [INFO] [stdout] --> src/main.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | let character = example.chars().nth(2); //pega um element especfico ao transformar em chars [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `is_adult` [INFO] [stdout] --> src/main.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 198 | let is_adult = if age >= 19 { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_adult` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bonus` [INFO] [stdout] --> src/main.rs:205:9 [INFO] [stdout] | [INFO] [stdout] 205 | let bonus = if points > 30{ 10 } else { -10 }; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_bonus` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:210:9 [INFO] [stdout] | [INFO] [stdout] 210 | let result = loop { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:239:9 [INFO] [stdout] | [INFO] [stdout] 239 | let value = match iter_item{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/main.rs:240:14 [INFO] [stdout] | [INFO] [stdout] 240 | Some(item) => "item", [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `squared` [INFO] [stdout] --> src/main.rs:249:9 [INFO] [stdout] | [INFO] [stdout] 249 | let squared: Vec<_> = vec_data.iter().map(|x| x*x).collect(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_squared` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/main.rs:272:13 [INFO] [stdout] | [INFO] [stdout] 272 | let name = String::from("Scope"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pointer2` [INFO] [stdout] --> src/main.rs:277:9 [INFO] [stdout] | [INFO] [stdout] 277 | let pointer2 = pointer1; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pointer2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p_y` [INFO] [stdout] --> src/main.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | let p_y = String::from("Ref"); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_p_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/main.rs:290:9 [INFO] [stdout] | [INFO] [stdout] 290 | let first = &slices_awn[0..4]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last` [INFO] [stdout] --> src/main.rs:291:9 [INFO] [stdout] | [INFO] [stdout] 291 | let last = &slices_awn[6..]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_last` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:294:9 [INFO] [stdout] | [INFO] [stdout] 294 | let result = greet("Felipe"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `times_two` [INFO] [stdout] --> src/main.rs:297:9 [INFO] [stdout] | [INFO] [stdout] 297 | let times_two = anonymous_return(2); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_times_two` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_print` [INFO] [stdout] --> src/main.rs:301:9 [INFO] [stdout] | [INFO] [stdout] 301 | let my_print = || println!("{scores:?}"); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_print` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rust_decimal_macros::dec` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rust_decimal_macros::dec; //importando apenas o dec [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let mut first_name = String::from("Gomez"); [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/main.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | let mut slice_name_str = String::from("Caleb"); [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/main.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | let mut each_ele = String::from("elements"); [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/main.rs:130:9 [INFO] [stdout] | [INFO] [stdout] 130 | let mut numbers_x2: Vec = vec![5,10,20]; [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/main.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | let mut numbers_array = [1,2,4]; [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/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 151 | let mut numbers_vec = numbers_array.to_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/main.rs:237:9 [INFO] [stdout] | [INFO] [stdout] 237 | let mut iter_item = iter_data.next(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Bronze` and `Silver` are never constructed [INFO] [stdout] --> src/main.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 156 | enum Membership { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] 157 | Bronze, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 158 | Silver, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `y` is never read [INFO] [stdout] --> src/main.rs:356:9 [INFO] [stdout] | [INFO] [stdout] 354 | struct Player { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 355 | x: i32, [INFO] [stdout] 356 | y: i32 [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/main.rs:213:20 [INFO] [stdout] | [INFO] [stdout] 213 | break; number_loops * 20; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ the arithmetic operation produces a value [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] 213 | break; let _ = number_loops * 20; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/main.rs:213:20 [INFO] [stdout] | [INFO] [stdout] 213 | break; number_loops * 20; [INFO] [stdout] | ----- ^^^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | | [INFO] [stdout] | any code following this expression is unreachable [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let a: i32 = 10; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let b: u32 = 10; // unsigned int (only positives numbers) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let c: f32 = 2.3; // float 32 bits range [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `d` [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let d = 2.3_f32; //you can declare numbers like that [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let e = 19 as f32; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let g: char = 'h'; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let j = false; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `new_slices` is assigned to, but never used [INFO] [stdout] --> src/main.rs:48:13 [INFO] [stdout] | [INFO] [stdout] 48 | let mut new_slices: i32 = 23; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_new_slices` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `new_slices` is never read [INFO] [stdout] --> src/main.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | new_slices += 1; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `big` [INFO] [stdout] --> src/main.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let big = 1_000; // one thousand [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_big` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/main.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 67 | let first = data_infer[0]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last_element` [INFO] [stdout] --> src/main.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let last_element: i32 = data_infer[data_infer.len() -1]; [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name2` [INFO] [stdout] --> src/main.rs:80:9 [INFO] [stdout] | [INFO] [stdout] 80 | let name2: &str = "Luiz Felipe"; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_name2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name_static` [INFO] [stdout] --> src/main.rs:82:9 [INFO] [stdout] | [INFO] [stdout] 82 | let name_static: &'static str = "Estatico"; [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_static` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `full_name` [INFO] [stdout] --> src/main.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let full_name = format!("{first_name} Limao"); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_full_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `numbers_vec` [INFO] [stdout] --> src/main.rs:151:13 [INFO] [stdout] | [INFO] [stdout] 151 | let mut numbers_vec = numbers_array.to_vec(); [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_numbers_vec` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `character` [INFO] [stdout] --> src/main.rs:177:9 [INFO] [stdout] | [INFO] [stdout] 177 | let character = example.chars().nth(2); //pega um element especfico ao transformar em chars [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `is_adult` [INFO] [stdout] --> src/main.rs:198:9 [INFO] [stdout] | [INFO] [stdout] 198 | let is_adult = if age >= 19 { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_adult` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `bonus` [INFO] [stdout] --> src/main.rs:205:9 [INFO] [stdout] | [INFO] [stdout] 205 | let bonus = if points > 30{ 10 } else { -10 }; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_bonus` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:210:9 [INFO] [stdout] | [INFO] [stdout] 210 | let result = loop { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/main.rs:239:9 [INFO] [stdout] | [INFO] [stdout] 239 | let value = match iter_item{ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/main.rs:240:14 [INFO] [stdout] | [INFO] [stdout] 240 | Some(item) => "item", [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `squared` [INFO] [stdout] --> src/main.rs:249:9 [INFO] [stdout] | [INFO] [stdout] 249 | let squared: Vec<_> = vec_data.iter().map(|x| x*x).collect(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_squared` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/main.rs:272:13 [INFO] [stdout] | [INFO] [stdout] 272 | let name = String::from("Scope"); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pointer2` [INFO] [stdout] --> src/main.rs:277:9 [INFO] [stdout] | [INFO] [stdout] 277 | let pointer2 = pointer1; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pointer2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p_y` [INFO] [stdout] --> src/main.rs:286:9 [INFO] [stdout] | [INFO] [stdout] 286 | let p_y = String::from("Ref"); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_p_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first` [INFO] [stdout] --> src/main.rs:290:9 [INFO] [stdout] | [INFO] [stdout] 290 | let first = &slices_awn[0..4]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_first` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `last` [INFO] [stdout] --> src/main.rs:291:9 [INFO] [stdout] | [INFO] [stdout] 291 | let last = &slices_awn[6..]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_last` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:294:9 [INFO] [stdout] | [INFO] [stdout] 294 | let result = greet("Felipe"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `times_two` [INFO] [stdout] --> src/main.rs:297:9 [INFO] [stdout] | [INFO] [stdout] 297 | let times_two = anonymous_return(2); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_times_two` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_print` [INFO] [stdout] --> src/main.rs:301:9 [INFO] [stdout] | [INFO] [stdout] 301 | let my_print = || println!("{scores:?}"); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_print` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let mut first_name = String::from("Gomez"); [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/main.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | let mut slice_name_str = String::from("Caleb"); [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/main.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | let mut each_ele = String::from("elements"); [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/main.rs:130:9 [INFO] [stdout] | [INFO] [stdout] 130 | let mut numbers_x2: Vec = vec![5,10,20]; [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/main.rs:150:9 [INFO] [stdout] | [INFO] [stdout] 150 | let mut numbers_array = [1,2,4]; [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/main.rs:151:9 [INFO] [stdout] | [INFO] [stdout] 151 | let mut numbers_vec = numbers_array.to_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/main.rs:237:9 [INFO] [stdout] | [INFO] [stdout] 237 | let mut iter_item = iter_data.next(); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> src/main.rs:213:20 [INFO] [stdout] | [INFO] [stdout] 213 | break; number_loops * 20; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ the arithmetic operation produces a value [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] 213 | break; let _ = number_loops * 20; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.64s [INFO] running `Command { std: "docker" "inspect" "f0fb50dbeea6fb79c64f5d61059c79af6df8e9a5be32c07478dab52ef553014d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0fb50dbeea6fb79c64f5d61059c79af6df8e9a5be32c07478dab52ef553014d", kill_on_drop: false }` [INFO] [stdout] f0fb50dbeea6fb79c64f5d61059c79af6df8e9a5be32c07478dab52ef553014d