[INFO] cloning repository https://github.com/c-n-o-t-e/learningRust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c-n-o-t-e/learningRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-n-o-t-e%2FlearningRust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-n-o-t-e%2FlearningRust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8a9b60ddb0887e8454808f033574c5b4517691a4 [INFO] testing c-n-o-t-e/learningRust against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-n-o-t-e%2FlearningRust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. 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[INFO] [stderr] Downloaded array_tool v1.0.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 85b186171a8f6257e3e69a1a94e2ba6595da62f9ceb3a732bec69fa034a1f535 [INFO] running `Command { std: "docker" "start" "-a" "85b186171a8f6257e3e69a1a94e2ba6595da62f9ceb3a732bec69fa034a1f535", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "85b186171a8f6257e3e69a1a94e2ba6595da62f9ceb3a732bec69fa034a1f535", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "85b186171a8f6257e3e69a1a94e2ba6595da62f9ceb3a732bec69fa034a1f535", kill_on_drop: false }` [INFO] [stdout] 85b186171a8f6257e3e69a1a94e2ba6595da62f9ceb3a732bec69fa034a1f535 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] f1751db3842feb2b3b32df3539e0bf242224304fe78eef643e776c6c24675a87 [INFO] running `Command { std: "docker" "start" "-a" "f1751db3842feb2b3b32df3539e0bf242224304fe78eef643e776c6c24675a87", kill_on_drop: false }` [INFO] [stderr] Compiling array_tool v1.0.3 [INFO] [stderr] Compiling learn_rust999999911111999 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `id`, `name`, and `email` are never read [INFO] [stdout] --> src/lib.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 57 | pub struct Customer { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 58 | id: u64, [INFO] [stdout] | ^^ [INFO] [stdout] 59 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 60 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `customer` are never read [INFO] [stdout] --> src/lib.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 73 | pub struct Order { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 74 | id: u64, [INFO] [stdout] | ^^ [INFO] [stdout] 75 | product: Product, [INFO] [stdout] 76 | customer: Customer, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Employee_Records` should have an upper camel case name [INFO] [stdout] --> src/bin/iterators.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct Employee_Records { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `EmployeeRecords` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterators.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let mut emp_1 = Employee { [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/bin/iterators.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let mut emp_2 = Employee { [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/bin/iterators.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut emp_db = Employee_Records { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `salary` are never read [INFO] [stdout] --> src/bin/iterators.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Employee { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 15 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | salary: u16, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Employee` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/hashMapsTask.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | / student_database.add_student(Student { [INFO] [stdout] 71 | | id: 1, [INFO] [stdout] 72 | | name: String::from("Victor"), [INFO] [stdout] 73 | | grade: 'A', [INFO] [stdout] 74 | | }); [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] 70 | let _ = student_database.add_student(Student { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `hash::Hash` [INFO] [stdout] --> src/bin/hashMaps.rs:1:33 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{collections::HashMap, hash::Hash, vec}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterating_through_collections.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut vec_1 = vec![45, 30, 85, 90, 41, 39]; [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: unused variable: `a` [INFO] [stdout] --> src/bin/var.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let a: i32 = 5; // signed 32-bit integer [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/bin/var.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let b: u32 = 5; // unsigned 32-bit integer [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/bin/var.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let c: i64 = 5; // signed 64-bit integer [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/bin/var.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let d: u64 = 5; // unsigned 64-bit integer [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/bin/var.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let e: f32 = 5.0; // 32-bit floating point [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/bin/var.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let f: f64 = 5.0; // 64-bit floating point [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/bin/var.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let g: bool = true; // boolean [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/bin/var.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let h: char = 'a'; // character [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/var.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let i: &str = "Hello, World!"; // string slice [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/bin/var.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let j: String = String::from("Hello, World!"); // string [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/bin/var.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let k: [i32; 5] = [1, 2, 3, 4, 5]; // array [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/bin/var.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let l: (i32, f64, u8) = (500, 6.4, 1); // tuple [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/bin/var.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let h: Vec = Vec::new(); // vector [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/bin/var.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let n: Option = Some(5); // option [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `o` [INFO] [stdout] --> src/bin/var.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let o: Result = Ok(5); // result [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/bin/var.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let p: Box = Box::new(5); // box [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `model` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Car { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 10 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `brand` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | struct Bicycle { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 22 | brand: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `model` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 27 | struct Bus { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 28 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `author`, and `genre` are never read [INFO] [stdout] --> src/bin/intoIter.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct Book { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 14 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 15 | author: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 16 | genre: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Book` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/closures.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let mut banned_user = String::from("banned user"); [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: field `value` is never read [INFO] [stdout] --> src/bin/traits_associated_types.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Km { [INFO] [stdout] | -- field in this struct [INFO] [stdout] 12 | value: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Km` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/bin/traits_associated_types.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | struct Miles { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 22 | value: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Miles` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `speed_Kmh` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let speed_Kmh = Kmh { value: 90 }; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `speed_kmh` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `distance_Km` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let distance_Km = speed_Kmh.distance_in_three_hours(); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `distance_km` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `speed_Mph` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let speed_Mph = Mph { value: 90 }; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `speed_mph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `distance_Miles` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let distance_Miles = speed_Mph.distance_in_three_hours(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `distance_miles` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `salary` is never read [INFO] [stdout] --> src/bin/closures.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 8 | salary: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `grade` is never read [INFO] [stdout] --> src/bin/conditionals.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut grade: char = 'F'; [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: value assigned to `grade` is never read [INFO] [stdout] --> src/bin/conditionals.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | grade = if marks >= 90 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `VecContainer_i32` should have an upper camel case name [INFO] [stdout] --> src/bin/traits_associated_typesTask.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct VecContainer_i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `VecContainerI32` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Point_2D` should have an upper camel case name [INFO] [stdout] --> src/bin/struct.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | struct Point_2D(i32, i32); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point2d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Point_3D` should have an upper camel case name [INFO] [stdout] --> src/bin/struct.rs:58:12 [INFO] [stdout] | [INFO] [stdout] 58 | struct Point_3D(i32, i32, i32); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point3d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extracted_owner` [INFO] [stdout] --> src/bin/struct.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let extracted_owner: String = my_car.owner.clone(); // fix use .clone() or &String = &my_car.owner [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extracted_owner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point_2D` [INFO] [stdout] --> src/bin/struct.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let point_2D = (1, 3); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_2D` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point_3D` [INFO] [stdout] --> src/bin/struct.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let point_3D = (12, 33, 12); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_3D` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point` [INFO] [stdout] --> src/bin/struct.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let point = Point_2D(1, 3); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point` [INFO] [stdout] --> src/bin/struct.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let point = Point_3D(2, 33, 12); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_owner` [INFO] [stdout] --> src/bin/struct.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let new_owner = my_car.sell(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_owner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `monthly_insurance` and `selling_price` are never used [INFO] [stdout] --> src/bin/struct.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Car { [INFO] [stdout] | -------- associated items in this implementation [INFO] [stdout] 9 | // Associates functions [INFO] [stdout] 10 | fn monthly_insurance() -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn selling_price(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/struct.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 57 | struct Point_2D(i32, i32); [INFO] [stdout] | -------- ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/bin/struct.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | struct Point_3D(i32, i32, i32); [INFO] [stdout] | -------- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ABC` is never constructed [INFO] [stdout] --> src/bin/struct.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 64 | struct ABC; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `point_2D` should have a snake case name [INFO] [stdout] --> src/bin/struct.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let point_2D = (1, 3); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `point_2_d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `point_3D` should have a snake case name [INFO] [stdout] --> src/bin/struct.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let point_3D = (12, 33, 12); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `point_3_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 10 | side: f32, [INFO] [stdout] 11 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 12 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 16 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 20 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_1` [INFO] [stdout] --> src/bin/genericsTask.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let op_1 = Operation::Addition(5, 10); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_2` [INFO] [stdout] --> src/bin/genericsTask.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let op_2 = Operation::Multiplication(3.5, 2.0); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_3` [INFO] [stdout] --> src/bin/genericsTask.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let op_3 = Operation::Subtraction(3.5, 2.0); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_4` [INFO] [stdout] --> src/bin/genericsTask.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let op_4 = Operation::Division(2, 3); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `salary` is never read [INFO] [stdout] --> src/bin/function_pointers.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 4 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 7 | salary: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `double` is never used [INFO] [stdout] --> src/bin/functionTask.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn double(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `triple` is never used [INFO] [stdout] --> src/bin/functionTask.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn triple(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterating_though_option.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut products = vec!["cellphone", "battery", "charger"]; [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: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:35:21 [INFO] [stdout] | [INFO] [stdout] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:35:39 [INFO] [stdout] | [INFO] [stdout] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:39:19 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:39:41 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:43:19 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:43:41 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let p2 = Point::new(5, 5.0); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new_1` is never used [INFO] [stdout] --> src/bin/generics.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 19 | impl Point { [INFO] [stdout] | -------------------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 24 | fn new_1(x: i32, y: i32) -> Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `printing` is never used [INFO] [stdout] --> src/bin/generics.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl Point { [INFO] [stdout] | -------------------- method in this implementation [INFO] [stdout] 30 | fn printing(&self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_points_i32` is never used [INFO] [stdout] --> src/bin/generics.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_points_f64` is never used [INFO] [stdout] --> src/bin/generics.rs:43:4 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Magazine` is never constructed [INFO] [stdout] --> src/bin/structTask.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 23 | enum ItemType { [INFO] [stdout] | -------- variant in this enum [INFO] [stdout] 24 | Book, [INFO] [stdout] 25 | Magazine, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ItemType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `title`, `year`, and `type_of_book` are never read [INFO] [stdout] --> src/bin/structTask.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 29 | struct Item { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 30 | id: u32, [INFO] [stdout] | ^^ [INFO] [stdout] 31 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 32 | year: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 33 | type_of_book: ItemType, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Item` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/bin/traits_bound.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let c1 = Circle { radius: 5.0 }; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_bound.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_bound.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/traits_bound.rs:59:4 [INFO] [stdout] | [INFO] [stdout] 59 | fn returns_shape() -> impl Shape { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `radius` is never read [INFO] [stdout] --> src/bin/traits_bound.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 81 | struct Circle { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 82 | radius: f32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Monday`, `Tuesday`, `Wednesday`, `Thursday`, `Friday`, and `Saturday` are never constructed [INFO] [stdout] --> src/bin/enums.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | enum Days { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 3 | Monday, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 4 | Tuesday, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | Wednesday, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 6 | Thursday, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 7 | Friday, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | Saturday, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Days` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Train` is never constructed [INFO] [stdout] --> src/bin/enums.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum TravelType { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 13 | Car(f32), [INFO] [stdout] 14 | Train(f32), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_object.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_object.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `draw_object` is never used [INFO] [stdout] --> src/bin/traits_object.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | trait Draw { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 19 | fn draw_object(&self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/traits_object.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn returns_shape(dimension: Vec) -> Box { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Circle` is never constructed [INFO] [stdout] --> src/bin/traits_object.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | struct Circle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shape_properties_static` is never used [INFO] [stdout] --> src/bin/traits_object.rs:86:4 [INFO] [stdout] | [INFO] [stdout] 86 | fn shape_properties_static(object: T) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `CircleArea`, `RectangleArea`, and `Perimeter` are never constructed [INFO] [stdout] --> src/bin/optionTask.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum Measurement { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 4 | CircleArea(f64), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 5 | RectangleArea(f64, f64), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 6 | TriangleArea(f64, f64), [INFO] [stdout] 7 | Perimeter(Vec), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::primitive` [INFO] [stdout] --> src/bin/optionAndResult.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::primitive; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Properties` is never used [INFO] [stdout] --> src/bin/traits_derived_and_marker.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait Properties: PartialEq + Default + Clone {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/super_traits.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/super_traits.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `draw_object` is never used [INFO] [stdout] --> src/bin/super_traits.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | trait Draw { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 19 | fn draw_object(&self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/super_traits.rs:76:4 [INFO] [stdout] | [INFO] [stdout] 76 | fn returns_shape() -> impl Shape { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/bin/combinators_task.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/combinators_task.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.47s [INFO] running `Command { std: "docker" "inspect" "f1751db3842feb2b3b32df3539e0bf242224304fe78eef643e776c6c24675a87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1751db3842feb2b3b32df3539e0bf242224304fe78eef643e776c6c24675a87", kill_on_drop: false }` [INFO] [stdout] f1751db3842feb2b3b32df3539e0bf242224304fe78eef643e776c6c24675a87 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] ed295319df7d9029927d4e15f3057c701a30b555d23408cfc5f5e4cad7102519 [INFO] running `Command { std: "docker" "start" "-a" "ed295319df7d9029927d4e15f3057c701a30b555d23408cfc5f5e4cad7102519", kill_on_drop: false }` [INFO] [stdout] warning: fields `id`, `name`, and `email` are never read [INFO] [stdout] --> src/lib.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 57 | pub struct Customer { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 58 | id: u64, [INFO] [stdout] | ^^ [INFO] [stdout] 59 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 60 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `customer` are never read [INFO] [stdout] --> src/lib.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 73 | pub struct Order { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 74 | id: u64, [INFO] [stdout] | ^^ [INFO] [stdout] 75 | product: Product, [INFO] [stdout] 76 | customer: Customer, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:35:21 [INFO] [stdout] | [INFO] [stdout] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:35:39 [INFO] [stdout] | [INFO] [stdout] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:39:19 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:39:41 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:43:19 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:43:41 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let p2 = Point::new(5, 5.0); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling learn_rust999999911111999 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `new_1` is never used [INFO] [stdout] --> src/bin/generics.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 19 | impl Point { [INFO] [stdout] | -------------------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 24 | fn new_1(x: i32, y: i32) -> Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `printing` is never used [INFO] [stdout] --> src/bin/generics.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl Point { [INFO] [stdout] | -------------------- method in this implementation [INFO] [stdout] 30 | fn printing(&self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_points_i32` is never used [INFO] [stdout] --> src/bin/generics.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_points_f64` is never used [INFO] [stdout] --> src/bin/generics.rs:43:4 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterating_through_collections.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut vec_1 = vec![45, 30, 85, 90, 41, 39]; [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: unused variable: `c1` [INFO] [stdout] --> src/bin/traits_bound.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let c1 = Circle { radius: 5.0 }; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_bound.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_bound.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/traits_bound.rs:59:4 [INFO] [stdout] | [INFO] [stdout] 59 | fn returns_shape() -> impl Shape { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `radius` is never read [INFO] [stdout] --> src/bin/traits_bound.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 81 | struct Circle { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 82 | radius: f32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Employee_Records` should have an upper camel case name [INFO] [stdout] --> src/bin/iterators.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct Employee_Records { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `EmployeeRecords` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterators.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let mut emp_1 = Employee { [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/bin/iterators.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let mut emp_2 = Employee { [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/bin/iterators.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut emp_db = Employee_Records { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `salary` are never read [INFO] [stdout] --> src/bin/iterators.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Employee { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 15 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | salary: u16, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Employee` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Properties` is never used [INFO] [stdout] --> src/bin/traits_derived_and_marker.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait Properties: PartialEq + Default + Clone {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/closures.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let mut banned_user = String::from("banned user"); [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: field `salary` is never read [INFO] [stdout] --> src/bin/closures.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 8 | salary: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterating_though_option.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut products = vec!["cellphone", "battery", "charger"]; [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: variants `CircleArea`, `RectangleArea`, and `Perimeter` are never constructed [INFO] [stdout] --> src/bin/optionTask.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum Measurement { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 4 | CircleArea(f64), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 5 | RectangleArea(f64, f64), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 6 | TriangleArea(f64, f64), [INFO] [stdout] 7 | Perimeter(Vec), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `model` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Car { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 10 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `brand` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | struct Bicycle { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 22 | brand: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `model` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 27 | struct Bus { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 28 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/bin/traits_associated_types.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Km { [INFO] [stdout] | -- field in this struct [INFO] [stdout] 12 | value: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Km` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/bin/traits_associated_types.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | struct Miles { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 22 | value: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Miles` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `speed_Kmh` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let speed_Kmh = Kmh { value: 90 }; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `speed_kmh` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `distance_Km` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let distance_Km = speed_Kmh.distance_in_three_hours(); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `distance_km` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `speed_Mph` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let speed_Mph = Mph { value: 90 }; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `speed_mph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `distance_Miles` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let distance_Miles = speed_Mph.distance_in_three_hours(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `distance_miles` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/bin/combinators_task.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/combinators_task.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [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: unused import: `hash::Hash` [INFO] [stdout] --> src/bin/hashMaps.rs:1:33 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{collections::HashMap, hash::Hash, vec}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `double` is never used [INFO] [stdout] --> src/bin/functionTask.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn double(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `triple` is never used [INFO] [stdout] --> src/bin/functionTask.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn triple(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/hashMapsTask.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | / student_database.add_student(Student { [INFO] [stdout] 71 | | id: 1, [INFO] [stdout] 72 | | name: String::from("Victor"), [INFO] [stdout] 73 | | grade: 'A', [INFO] [stdout] 74 | | }); [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] 70 | let _ = student_database.add_student(Student { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/bin/var.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let a: i32 = 5; // signed 32-bit integer [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/bin/var.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let b: u32 = 5; // unsigned 32-bit integer [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/bin/var.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let c: i64 = 5; // signed 64-bit integer [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/bin/var.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let d: u64 = 5; // unsigned 64-bit integer [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:35:21 [INFO] [stdout] | [INFO] [stdout] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/bin/var.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let e: f32 = 5.0; // 32-bit floating point [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/bin/var.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let f: f64 = 5.0; // 64-bit floating point [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/bin/var.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let g: bool = true; // boolean [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/bin/var.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let h: char = 'a'; // character [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/var.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let i: &str = "Hello, World!"; // string slice [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/bin/var.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let j: String = String::from("Hello, World!"); // string [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/bin/var.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let k: [i32; 5] = [1, 2, 3, 4, 5]; // array [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/bin/var.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let l: (i32, f64, u8) = (500, 6.4, 1); // tuple [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/bin/var.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let h: Vec = Vec::new(); // vector [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/bin/var.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let n: Option = Some(5); // option [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `o` [INFO] [stdout] --> src/bin/var.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let o: Result = Ok(5); // result [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/bin/var.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let p: Box = Box::new(5); // box [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `grade` is never read [INFO] [stdout] --> src/bin/conditionals.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut grade: char = 'F'; [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: value assigned to `grade` is never read [INFO] [stdout] --> src/bin/conditionals.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | grade = if marks >= 90 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:35:39 [INFO] [stdout] | [INFO] [stdout] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterating_though_option.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let mut products = vec!["cellphone", "battery", "charger"]; [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: trait `Properties` is never used [INFO] [stdout] --> src/bin/traits_derived_and_marker.rs:6:7 [INFO] [stdout] | [INFO] [stdout] 6 | trait Properties: PartialEq + Default + Clone {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:39:19 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:39:41 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/bin/generics.rs:43:19 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:43:41 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/bin/generics.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let p2 = Point::new(5, 5.0); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new_1` is never used [INFO] [stdout] --> src/bin/generics.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 19 | impl Point { [INFO] [stdout] | -------------------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 24 | fn new_1(x: i32, y: i32) -> Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `printing` is never used [INFO] [stdout] --> src/bin/generics.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 29 | impl Point { [INFO] [stdout] | -------------------- method in this implementation [INFO] [stdout] 30 | fn printing(&self) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_points_i32` is never used [INFO] [stdout] --> src/bin/generics.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_points_f64` is never used [INFO] [stdout] --> src/bin/generics.rs:43:4 [INFO] [stdout] | [INFO] [stdout] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `salary` is never read [INFO] [stdout] --> src/bin/function_pointers.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 4 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 7 | salary: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/closures.rs:29:9 [INFO] [stdout] | [INFO] [stdout] 29 | let mut banned_user = String::from("banned user"); [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: field `salary` is never read [INFO] [stdout] --> src/bin/closures.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 8 | salary: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `CircleArea`, `RectangleArea`, and `Perimeter` are never constructed [INFO] [stdout] --> src/bin/optionTask.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum Measurement { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 4 | CircleArea(f64), [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 5 | RectangleArea(f64, f64), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 6 | TriangleArea(f64, f64), [INFO] [stdout] 7 | Perimeter(Vec), [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `grade` is never read [INFO] [stdout] --> src/bin/conditionals.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut grade: char = 'F'; [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: value assigned to `grade` is never read [INFO] [stdout] --> src/bin/conditionals.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | grade = if marks >= 90 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::primitive` [INFO] [stdout] --> src/bin/optionAndResult.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::primitive; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/bin/traits_associated_types.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Km { [INFO] [stdout] | -- field in this struct [INFO] [stdout] 12 | value: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Km` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> src/bin/traits_associated_types.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | struct Miles { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 22 | value: u32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Miles` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `speed_Kmh` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let speed_Kmh = Kmh { value: 90 }; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `speed_kmh` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `distance_Km` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let distance_Km = speed_Kmh.distance_in_three_hours(); [INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `distance_km` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `speed_Mph` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let speed_Mph = Mph { value: 90 }; [INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to snake case: `speed_mph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `distance_Miles` should have a snake case name [INFO] [stdout] --> src/bin/traits_associated_types.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let distance_Miles = speed_Mph.distance_in_three_hours(); [INFO] [stdout] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `distance_miles` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_1` [INFO] [stdout] --> src/bin/genericsTask.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let op_1 = Operation::Addition(5, 10); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_2` [INFO] [stdout] --> src/bin/genericsTask.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let op_2 = Operation::Multiplication(3.5, 2.0); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_3` [INFO] [stdout] --> src/bin/genericsTask.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let op_3 = Operation::Subtraction(3.5, 2.0); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_4` [INFO] [stdout] --> src/bin/genericsTask.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let op_4 = Operation::Division(2, 3); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/bin/var.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let a: i32 = 5; // signed 32-bit integer [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/bin/var.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let b: u32 = 5; // unsigned 32-bit integer [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/bin/var.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let c: i64 = 5; // signed 64-bit integer [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/bin/var.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let d: u64 = 5; // unsigned 64-bit integer [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/bin/var.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let e: f32 = 5.0; // 32-bit floating point [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/bin/var.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let f: f64 = 5.0; // 64-bit floating point [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `g` [INFO] [stdout] --> src/bin/var.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let g: bool = true; // boolean [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/bin/var.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let h: char = 'a'; // character [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/var.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let i: &str = "Hello, World!"; // string slice [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/bin/var.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let j: String = String::from("Hello, World!"); // string [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> src/bin/var.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let k: [i32; 5] = [1, 2, 3, 4, 5]; // array [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l` [INFO] [stdout] --> src/bin/var.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let l: (i32, f64, u8) = (500, 6.4, 1); // tuple [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `h` [INFO] [stdout] --> src/bin/var.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let h: Vec = Vec::new(); // vector [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/bin/var.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let n: Option = Some(5); // option [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `o` [INFO] [stdout] --> src/bin/var.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let o: Result = Ok(5); // result [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/bin/var.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let p: Box = Box::new(5); // box [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/hashMapsTask.rs:70:5 [INFO] [stdout] | [INFO] [stdout] 70 | / student_database.add_student(Student { [INFO] [stdout] 71 | | id: 1, [INFO] [stdout] 72 | | name: String::from("Victor"), [INFO] [stdout] 73 | | grade: 'A', [INFO] [stdout] 74 | | }); [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] 70 | let _ = student_database.add_student(Student { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `author`, and `genre` are never read [INFO] [stdout] --> src/bin/intoIter.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct Book { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 14 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 15 | author: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 16 | genre: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Book` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `VecContainer_i32` should have an upper camel case name [INFO] [stdout] --> src/bin/traits_associated_typesTask.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct VecContainer_i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `VecContainerI32` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `hash::Hash` [INFO] [stdout] --> src/bin/hashMaps.rs:1:33 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{collections::HashMap, hash::Hash, vec}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/super_traits.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/super_traits.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `draw_object` is never used [INFO] [stdout] --> src/bin/super_traits.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | trait Draw { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 19 | fn draw_object(&self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/super_traits.rs:76:4 [INFO] [stdout] | [INFO] [stdout] 76 | fn returns_shape() -> impl Shape { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Monday`, `Tuesday`, `Wednesday`, `Thursday`, `Friday`, and `Saturday` are never constructed [INFO] [stdout] --> src/bin/enums.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | enum Days { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 3 | Monday, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 4 | Tuesday, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | Wednesday, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 6 | Thursday, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 7 | Friday, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | Saturday, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Days` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Train` is never constructed [INFO] [stdout] --> src/bin/enums.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum TravelType { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 13 | Car(f32), [INFO] [stdout] 14 | Train(f32), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Point_2D` should have an upper camel case name [INFO] [stdout] --> src/bin/struct.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | struct Point_2D(i32, i32); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point2d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Point_3D` should have an upper camel case name [INFO] [stdout] --> src/bin/struct.rs:58:12 [INFO] [stdout] | [INFO] [stdout] 58 | struct Point_3D(i32, i32, i32); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point3d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Magazine` is never constructed [INFO] [stdout] --> src/bin/structTask.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 23 | enum ItemType { [INFO] [stdout] | -------- variant in this enum [INFO] [stdout] 24 | Book, [INFO] [stdout] 25 | Magazine, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ItemType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `title`, `year`, and `type_of_book` are never read [INFO] [stdout] --> src/bin/structTask.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 29 | struct Item { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 30 | id: u32, [INFO] [stdout] | ^^ [INFO] [stdout] 31 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 32 | year: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 33 | type_of_book: ItemType, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Item` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 10 | side: f32, [INFO] [stdout] 11 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 12 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 16 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 20 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::primitive` [INFO] [stdout] --> src/bin/optionAndResult.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::primitive; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterating_through_collections.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut vec_1 = vec![45, 30, 85, 90, 41, 39]; [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: unused variable: `extracted_owner` [INFO] [stdout] --> src/bin/struct.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let extracted_owner: String = my_car.owner.clone(); // fix use .clone() or &String = &my_car.owner [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extracted_owner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point_2D` [INFO] [stdout] --> src/bin/struct.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let point_2D = (1, 3); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_2D` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point_3D` [INFO] [stdout] --> src/bin/struct.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let point_3D = (12, 33, 12); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_3D` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point` [INFO] [stdout] --> src/bin/struct.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let point = Point_2D(1, 3); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point` [INFO] [stdout] --> src/bin/struct.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let point = Point_3D(2, 33, 12); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_owner` [INFO] [stdout] --> src/bin/struct.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let new_owner = my_car.sell(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_owner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `monthly_insurance` and `selling_price` are never used [INFO] [stdout] --> src/bin/struct.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Car { [INFO] [stdout] | -------- associated items in this implementation [INFO] [stdout] 9 | // Associates functions [INFO] [stdout] 10 | fn monthly_insurance() -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn selling_price(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `point_2D` should have a snake case name [INFO] [stdout] --> src/bin/struct.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let point_2D = (1, 3); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `point_2_d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `point_3D` should have a snake case name [INFO] [stdout] --> src/bin/struct.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let point_3D = (12, 33, 12); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `point_3_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `VecContainer_i32` should have an upper camel case name [INFO] [stdout] --> src/bin/traits_associated_typesTask.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct VecContainer_i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `VecContainerI32` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_object.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_object.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `draw_object` is never used [INFO] [stdout] --> src/bin/traits_object.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | trait Draw { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 19 | fn draw_object(&self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/traits_object.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn returns_shape(dimension: Vec) -> Box { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Circle` is never constructed [INFO] [stdout] --> src/bin/traits_object.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | struct Circle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shape_properties_static` is never used [INFO] [stdout] --> src/bin/traits_object.rs:86:4 [INFO] [stdout] | [INFO] [stdout] 86 | fn shape_properties_static(object: T) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Employee_Records` should have an upper camel case name [INFO] [stdout] --> src/bin/iterators.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | struct Employee_Records { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `EmployeeRecords` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_1` [INFO] [stdout] --> src/bin/genericsTask.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let op_1 = Operation::Addition(5, 10); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/iterators.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let mut emp_1 = Employee { [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/bin/iterators.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let mut emp_2 = Employee { [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/bin/iterators.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let mut emp_db = Employee_Records { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `salary` are never read [INFO] [stdout] --> src/bin/iterators.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct Employee { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 15 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | salary: u16, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Employee` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_2` [INFO] [stdout] --> src/bin/genericsTask.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let op_2 = Operation::Multiplication(3.5, 2.0); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_3` [INFO] [stdout] --> src/bin/genericsTask.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let op_3 = Operation::Subtraction(3.5, 2.0); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `op_4` [INFO] [stdout] --> src/bin/genericsTask.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let op_4 = Operation::Division(2, 3); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_4` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `double` is never used [INFO] [stdout] --> src/bin/functionTask.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn double(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `triple` is never used [INFO] [stdout] --> src/bin/functionTask.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn triple(x: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `title`, `author`, and `genre` are never read [INFO] [stdout] --> src/bin/intoIter.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct Book { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 14 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 15 | author: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 16 | genre: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Book` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `model` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Car { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 10 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `brand` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 21 | struct Bicycle { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 22 | brand: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `model` is never read [INFO] [stdout] --> src/bin/traitsTask.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 27 | struct Bus { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 28 | model: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Monday`, `Tuesday`, `Wednesday`, `Thursday`, `Friday`, and `Saturday` are never constructed [INFO] [stdout] --> src/bin/enums.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | enum Days { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 3 | Monday, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 4 | Tuesday, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | Wednesday, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 6 | Thursday, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 7 | Friday, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 8 | Saturday, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Days` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Train` is never constructed [INFO] [stdout] --> src/bin/enums.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum TravelType { [INFO] [stdout] | ---------- variant in this enum [INFO] [stdout] 13 | Car(f32), [INFO] [stdout] 14 | Train(f32), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/super_traits.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/super_traits.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `draw_object` is never used [INFO] [stdout] --> src/bin/super_traits.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | trait Draw { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 19 | fn draw_object(&self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/super_traits.rs:76:4 [INFO] [stdout] | [INFO] [stdout] 76 | fn returns_shape() -> impl Shape { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_object.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_object.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `draw_object` is never used [INFO] [stdout] --> src/bin/traits_object.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | trait Draw { [INFO] [stdout] | ---- method in this trait [INFO] [stdout] 19 | fn draw_object(&self); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/traits_object.rs:62:4 [INFO] [stdout] | [INFO] [stdout] 62 | fn returns_shape(dimension: Vec) -> Box { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Circle` is never constructed [INFO] [stdout] --> src/bin/traits_object.rs:81:8 [INFO] [stdout] | [INFO] [stdout] 81 | struct Circle { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shape_properties_static` is never used [INFO] [stdout] --> src/bin/traits_object.rs:86:4 [INFO] [stdout] | [INFO] [stdout] 86 | fn shape_properties_static(object: T) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Point_2D` should have an upper camel case name [INFO] [stdout] --> src/bin/struct.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | struct Point_2D(i32, i32); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point2d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type `Point_3D` should have an upper camel case name [INFO] [stdout] --> src/bin/struct.rs:58:12 [INFO] [stdout] | [INFO] [stdout] 58 | struct Point_3D(i32, i32, i32); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point3d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `extracted_owner` [INFO] [stdout] --> src/bin/struct.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let extracted_owner: String = my_car.owner.clone(); // fix use .clone() or &String = &my_car.owner [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extracted_owner` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point_2D` [INFO] [stdout] --> src/bin/struct.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let point_2D = (1, 3); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_2D` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point_3D` [INFO] [stdout] --> src/bin/struct.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let point_3D = (12, 33, 12); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_3D` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point` [INFO] [stdout] --> src/bin/struct.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let point = Point_2D(1, 3); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `point` [INFO] [stdout] --> src/bin/struct.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let point = Point_3D(2, 33, 12); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `new_owner` [INFO] [stdout] --> src/bin/struct.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | let new_owner = my_car.sell(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_owner` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `monthly_insurance` and `selling_price` are never used [INFO] [stdout] --> src/bin/struct.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Car { [INFO] [stdout] | -------- associated items in this implementation [INFO] [stdout] 9 | // Associates functions [INFO] [stdout] 10 | fn monthly_insurance() -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | fn selling_price(&self) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/struct.rs:57:21 [INFO] [stdout] | [INFO] [stdout] 57 | struct Point_2D(i32, i32); [INFO] [stdout] | -------- ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/bin/struct.rs:58:21 [INFO] [stdout] | [INFO] [stdout] 58 | struct Point_3D(i32, i32, i32); [INFO] [stdout] | -------- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ABC` is never constructed [INFO] [stdout] --> src/bin/struct.rs:64:12 [INFO] [stdout] | [INFO] [stdout] 64 | struct ABC; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `point_2D` should have a snake case name [INFO] [stdout] --> src/bin/struct.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let point_2D = (1, 3); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `point_2_d` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `point_3D` should have a snake case name [INFO] [stdout] --> src/bin/struct.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let point_3D = (12, 33, 12); [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `point_3_d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/bin/combinators_task.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/combinators_task.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut result = 0; [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: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 10 | side: f32, [INFO] [stdout] 11 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 12 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 16 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 19 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 20 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `salary` is never read [INFO] [stdout] --> src/bin/function_pointers.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 4 | struct User { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] ... [INFO] [stdout] 7 | salary: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/bin/traits_bound.rs:98:9 [INFO] [stdout] | [INFO] [stdout] 98 | let c1 = Circle { radius: 5.0 }; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_bound.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Square { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 6 | side: f32, [INFO] [stdout] 7 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 8 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `line_width` and `color` are never read [INFO] [stdout] --> src/bin/traits_bound.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 11 | struct Rectangle { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 14 | line_width: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 15 | color: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_shape` is never used [INFO] [stdout] --> src/bin/traits_bound.rs:59:4 [INFO] [stdout] | [INFO] [stdout] 59 | fn returns_shape() -> impl Shape { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `radius` is never read [INFO] [stdout] --> src/bin/traits_bound.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 81 | struct Circle { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 82 | radius: f32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Magazine` is never constructed [INFO] [stdout] --> src/bin/structTask.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 23 | enum ItemType { [INFO] [stdout] | -------- variant in this enum [INFO] [stdout] 24 | Book, [INFO] [stdout] 25 | Magazine, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ItemType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `title`, `year`, and `type_of_book` are never read [INFO] [stdout] --> src/bin/structTask.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 29 | struct Item { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 30 | id: u32, [INFO] [stdout] | ^^ [INFO] [stdout] 31 | title: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 32 | year: u32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 33 | type_of_book: ItemType, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Item` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `name`, and `email` are never read [INFO] [stdout] --> src/lib.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 57 | pub struct Customer { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 58 | id: u64, [INFO] [stdout] | ^^ [INFO] [stdout] 59 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 60 | email: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `customer` are never read [INFO] [stdout] --> src/lib.rs:74:9 [INFO] [stdout] | [INFO] [stdout] 73 | pub struct Order { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 74 | id: u64, [INFO] [stdout] | ^^ [INFO] [stdout] 75 | product: Product, [INFO] [stdout] 76 | customer: Customer, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `Command { std: "docker" "inspect" "ed295319df7d9029927d4e15f3057c701a30b555d23408cfc5f5e4cad7102519", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ed295319df7d9029927d4e15f3057c701a30b555d23408cfc5f5e4cad7102519", kill_on_drop: false }` [INFO] [stdout] ed295319df7d9029927d4e15f3057c701a30b555d23408cfc5f5e4cad7102519 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] f223c26c47f0dde6da8d82ee922d743e301bbc0a9983bc93a25538b4c700865c [INFO] running `Command { std: "docker" "start" "-a" "f223c26c47f0dde6da8d82ee922d743e301bbc0a9983bc93a25538b4c700865c", kill_on_drop: false }` [INFO] [stderr] warning: fields `id`, `name`, and `email` are never read [INFO] [stderr] --> src/lib.rs:58:9 [INFO] [stderr] | [INFO] [stderr] 57 | pub struct Customer { [INFO] [stderr] | -------- fields in this struct [INFO] [stderr] 58 | id: u64, [INFO] [stderr] | ^^ [INFO] [stderr] 59 | name: String, [INFO] [stderr] | ^^^^ [INFO] [stderr] 60 | email: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `id` and `customer` are never read [INFO] [stderr] --> src/lib.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 73 | pub struct Order { [INFO] [stderr] | ----- fields in this struct [INFO] [stderr] 74 | id: u64, [INFO] [stderr] | ^^ [INFO] [stderr] 75 | product: Product, [INFO] [stderr] 76 | customer: Customer, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `learn_rust999999911111999` (lib) generated 2 warnings [INFO] [stderr] warning: type `Employee_Records` should have an upper camel case name [INFO] [stderr] --> src/bin/iterators.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 19 | struct Employee_Records { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `EmployeeRecords` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/iterators.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let mut emp_1 = Employee { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/iterators.rs:42:9 [INFO] [stderr] | [INFO] [stderr] 42 | let mut emp_2 = Employee { [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/iterators.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let mut emp_db = Employee_Records { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: fields `name` and `salary` are never read [INFO] [stderr] --> src/bin/iterators.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 14 | struct Employee { [INFO] [stderr] | -------- fields in this struct [INFO] [stderr] 15 | name: String, [INFO] [stderr] | ^^^^ [INFO] [stderr] 16 | salary: u16, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Employee` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type `VecContainer_i32` should have an upper camel case name [INFO] [stderr] --> src/bin/traits_associated_typesTask.rs:93:8 [INFO] [stderr] | [INFO] [stderr] 93 | struct VecContainer_i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `VecContainerI32` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `learn_rust999999911111999` (bin "iterators" test) generated 5 warnings (run `cargo fix --bin "iterators" --tests` to apply 3 suggestions) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_associated_typesTask") generated 1 warning [INFO] [stderr] warning: unused variable: `p1` [INFO] [stderr] --> src/bin/generics.rs:35:21 [INFO] [stderr] | [INFO] [stderr] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p2` [INFO] [stderr] --> src/bin/generics.rs:35:39 [INFO] [stderr] | [INFO] [stderr] 35 | fn add_points(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p1` [INFO] [stderr] --> src/bin/generics.rs:39:19 [INFO] [stderr] | [INFO] [stderr] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p2` [INFO] [stderr] --> src/bin/generics.rs:39:41 [INFO] [stderr] | [INFO] [stderr] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p1` [INFO] [stderr] --> src/bin/generics.rs:43:19 [INFO] [stderr] | [INFO] [stderr] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p2` [INFO] [stderr] --> src/bin/generics.rs:43:41 [INFO] [stderr] | [INFO] [stderr] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p2` [INFO] [stderr] --> src/bin/generics.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | let p2 = Point::new(5, 5.0); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stderr] [INFO] [stderr] warning: associated function `new_1` is never used [INFO] [stderr] --> src/bin/generics.rs:24:8 [INFO] [stderr] | [INFO] [stderr] 19 | impl Point { [INFO] [stderr] | -------------------- associated function in this implementation [INFO] [stderr] ... [INFO] [stderr] 24 | fn new_1(x: i32, y: i32) -> Point { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `printing` is never used [INFO] [stderr] --> src/bin/generics.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 29 | impl Point { [INFO] [stderr] | -------------------- method in this implementation [INFO] [stderr] 30 | fn printing(&self) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `add_points_i32` is never used [INFO] [stderr] --> src/bin/generics.rs:39:4 [INFO] [stderr] | [INFO] [stderr] 39 | fn add_points_i32(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `add_points_f64` is never used [INFO] [stderr] --> src/bin/generics.rs:43:4 [INFO] [stderr] | [INFO] [stderr] 43 | fn add_points_f64(p1: &Point, p2: &Point) -> Point { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c1` [INFO] [stderr] --> src/bin/traits_bound.rs:98:9 [INFO] [stderr] | [INFO] [stderr] 98 | let c1 = Circle { radius: 5.0 }; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/traits_bound.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct Square { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 6 | side: f32, [INFO] [stderr] 7 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 8 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/traits_bound.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 11 | struct Rectangle { [INFO] [stderr] | --------- fields in this struct [INFO] [stderr] ... [INFO] [stderr] 14 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 15 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `returns_shape` is never used [INFO] [stderr] --> src/bin/traits_bound.rs:59:4 [INFO] [stderr] | [INFO] [stderr] 59 | fn returns_shape() -> impl Shape { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `radius` is never read [INFO] [stderr] --> src/bin/traits_bound.rs:82:5 [INFO] [stderr] | [INFO] [stderr] 81 | struct Circle { [INFO] [stderr] | ------ field in this struct [INFO] [stderr] 82 | radius: f32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variants `CircleArea`, `RectangleArea`, and `Perimeter` are never constructed [INFO] [stderr] --> src/bin/optionTask.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 3 | enum Measurement { [INFO] [stderr] | ----------- variants in this enum [INFO] [stderr] 4 | CircleArea(f64), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 5 | RectangleArea(f64, f64), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] 6 | TriangleArea(f64, f64), [INFO] [stderr] 7 | Perimeter(Vec), [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `salary` is never read [INFO] [stderr] --> src/bin/function_pointers.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 4 | struct User { [INFO] [stderr] | ---- field in this struct [INFO] [stderr] ... [INFO] [stderr] 7 | salary: u32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `hash::Hash` [INFO] [stderr] --> src/bin/hashMaps.rs:1:33 [INFO] [stderr] | [INFO] [stderr] 1 | use std::{collections::HashMap, hash::Hash, vec}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/traits.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 9 | struct Square { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 10 | side: f32, [INFO] [stderr] 11 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 12 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/traits.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 16 | struct Rectangle { [INFO] [stderr] | --------- fields in this struct [INFO] [stderr] ... [INFO] [stderr] 19 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 20 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: fields `title`, `author`, and `genre` are never read [INFO] [stderr] --> src/bin/intoIter.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 13 | struct Book { [INFO] [stderr] | ---- fields in this struct [INFO] [stderr] 14 | title: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 15 | author: String, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 16 | genre: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Book` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/bin/var.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | let a: i32 = 5; // signed 32-bit integer [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/bin/var.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let b: u32 = 5; // unsigned 32-bit integer [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/bin/var.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let c: i64 = 5; // signed 64-bit integer [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `d` [INFO] [stderr] --> src/bin/var.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let d: u64 = 5; // unsigned 64-bit integer [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_d` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/bin/var.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | let e: f32 = 5.0; // 32-bit floating point [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/bin/var.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let f: f64 = 5.0; // 64-bit floating point [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `g` [INFO] [stderr] --> src/bin/var.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let g: bool = true; // boolean [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_g` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `h` [INFO] [stderr] --> src/bin/var.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let h: char = 'a'; // character [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/bin/var.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let i: &str = "Hello, World!"; // string slice [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/bin/var.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let j: String = String::from("Hello, World!"); // string [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `k` [INFO] [stderr] --> src/bin/var.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let k: [i32; 5] = [1, 2, 3, 4, 5]; // array [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `l` [INFO] [stderr] --> src/bin/var.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let l: (i32, f64, u8) = (500, 6.4, 1); // tuple [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_l` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `h` [INFO] [stderr] --> src/bin/var.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let h: Vec = Vec::new(); // vector [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_h` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/bin/var.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let n: Option = Some(5); // option [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `o` [INFO] [stderr] --> src/bin/var.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let o: Result = Ok(5); // result [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/bin/var.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let p: Box = Box::new(5); // box [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: `learn_rust999999911111999` (bin "generics" test) generated 11 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_bound") generated 5 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "optionTask" test) generated 1 warning [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_bound" test) generated 5 warnings (5 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "function_pointers") generated 1 warning [INFO] [stderr] warning: `learn_rust999999911111999` (bin "hashMaps" test) generated 1 warning (run `cargo fix --bin "hashMaps" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "function_pointers" test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits" test) generated 2 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "intoIter" test) generated 1 warning [INFO] [stderr] warning: `learn_rust999999911111999` (bin "intoIter") generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "var" test) generated 16 warnings [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/super_traits.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct Square { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 6 | side: f32, [INFO] [stderr] 7 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 8 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/super_traits.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 11 | struct Rectangle { [INFO] [stderr] | --------- fields in this struct [INFO] [stderr] ... [INFO] [stderr] 14 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 15 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `draw_object` is never used [INFO] [stderr] --> src/bin/super_traits.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 18 | trait Draw { [INFO] [stderr] | ---- method in this trait [INFO] [stderr] 19 | fn draw_object(&self); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `returns_shape` is never used [INFO] [stderr] --> src/bin/super_traits.rs:76:4 [INFO] [stderr] | [INFO] [stderr] 76 | fn returns_shape() -> impl Shape { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/bin/hashMapsTask.rs:70:5 [INFO] [stderr] | [INFO] [stderr] 70 | / student_database.add_student(Student { [INFO] [stderr] 71 | | id: 1, [INFO] [stderr] 72 | | name: String::from("Victor"), [INFO] [stderr] 73 | | grade: 'A', [INFO] [stderr] 74 | | }); [INFO] [stderr] | |______^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 70 | let _ = student_database.add_student(Student { [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: type `Point_2D` should have an upper camel case name [INFO] [stderr] --> src/bin/struct.rs:57:12 [INFO] [stderr] | [INFO] [stderr] 57 | struct Point_2D(i32, i32); [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point2d` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type `Point_3D` should have an upper camel case name [INFO] [stderr] --> src/bin/struct.rs:58:12 [INFO] [stderr] | [INFO] [stderr] 58 | struct Point_3D(i32, i32, i32); [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to upper camel case: `Point3d` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `extracted_owner` [INFO] [stderr] --> src/bin/struct.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | let extracted_owner: String = my_car.owner.clone(); // fix use .clone() or &String = &my_car.owner [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extracted_owner` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point_2D` [INFO] [stderr] --> src/bin/struct.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let point_2D = (1, 3); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_2D` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point_3D` [INFO] [stderr] --> src/bin/struct.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | let point_3D = (12, 33, 12); [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point_3D` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point` [INFO] [stderr] --> src/bin/struct.rs:60:9 [INFO] [stderr] | [INFO] [stderr] 60 | let point = Point_2D(1, 3); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point` [INFO] [stderr] --> src/bin/struct.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let point = Point_3D(2, 33, 12); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_point` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `new_owner` [INFO] [stderr] --> src/bin/struct.rs:69:9 [INFO] [stderr] | [INFO] [stderr] 69 | let new_owner = my_car.sell(); [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_owner` [INFO] [stderr] [INFO] [stderr] warning: associated items `monthly_insurance` and `selling_price` are never used [INFO] [stderr] --> src/bin/struct.rs:10:8 [INFO] [stderr] | [INFO] [stderr] 8 | impl Car { [INFO] [stderr] | -------- associated items in this implementation [INFO] [stderr] 9 | // Associates functions [INFO] [stderr] 10 | fn monthly_insurance() -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 14 | fn selling_price(&self) -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `point_2D` should have a snake case name [INFO] [stderr] --> src/bin/struct.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let point_2D = (1, 3); [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `point_2_d` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `point_3D` should have a snake case name [INFO] [stderr] --> src/bin/struct.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | let point_3D = (12, 33, 12); [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `point_3_d` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/closures.rs:29:9 [INFO] [stderr] | [INFO] [stderr] 29 | let mut banned_user = String::from("banned user"); [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `salary` is never read [INFO] [stderr] --> src/bin/closures.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct User { [INFO] [stderr] | ---- field in this struct [INFO] [stderr] ... [INFO] [stderr] 8 | salary: u32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/bin/combinators_task.rs:5:13 [INFO] [stderr] | [INFO] [stderr] 5 | let mut result = 0; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/combinators_task.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let mut result = 0; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variants `Monday`, `Tuesday`, `Wednesday`, `Thursday`, `Friday`, and `Saturday` are never constructed [INFO] [stderr] --> src/bin/enums.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 2 | enum Days { [INFO] [stderr] | ---- variants in this enum [INFO] [stderr] 3 | Monday, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 4 | Tuesday, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] 5 | Wednesday, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 6 | Thursday, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] 7 | Friday, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 8 | Saturday, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Days` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant `Train` is never constructed [INFO] [stderr] --> src/bin/enums.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 12 | enum TravelType { [INFO] [stderr] | ---------- variant in this enum [INFO] [stderr] 13 | Car(f32), [INFO] [stderr] 14 | Train(f32), [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `model` is never read [INFO] [stderr] --> src/bin/traitsTask.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 9 | struct Car { [INFO] [stderr] | --- field in this struct [INFO] [stderr] 10 | model: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `brand` is never read [INFO] [stderr] --> src/bin/traitsTask.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 21 | struct Bicycle { [INFO] [stderr] | ------- field in this struct [INFO] [stderr] 22 | brand: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `model` is never read [INFO] [stderr] --> src/bin/traitsTask.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 27 | struct Bus { [INFO] [stderr] | --- field in this struct [INFO] [stderr] 28 | model: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait `Properties` is never used [INFO] [stderr] --> src/bin/traits_derived_and_marker.rs:6:7 [INFO] [stderr] | [INFO] [stderr] 6 | trait Properties: PartialEq + Default + Clone {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::primitive` [INFO] [stderr] --> src/bin/optionAndResult.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::primitive; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `double` is never used [INFO] [stderr] --> src/bin/functionTask.rs:32:4 [INFO] [stderr] | [INFO] [stderr] 32 | fn double(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `triple` is never used [INFO] [stderr] --> src/bin/functionTask.rs:36:4 [INFO] [stderr] | [INFO] [stderr] 36 | fn triple(x: i32) -> i32 { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `learn_rust999999911111999` (bin "super_traits") generated 4 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "hashMapsTask") generated 1 warning [INFO] [stderr] warning: `learn_rust999999911111999` (bin "struct" test) generated 11 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "closures" test) generated 2 warnings (run `cargo fix --bin "closures" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "hashMaps") generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "combinators_task" test) generated 2 warnings (run `cargo fix --bin "combinators_task" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "closures") generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "enums") generated 2 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traitsTask" test) generated 3 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_derived_and_marker" test) generated 1 warning [INFO] [stderr] warning: `learn_rust999999911111999` (bin "optionAndResult" test) generated 1 warning (run `cargo fix --bin "optionAndResult" --tests` to apply 1 suggestion) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "functionTask" test) generated 2 warnings [INFO] [stderr] warning: value assigned to `grade` is never read [INFO] [stderr] --> src/bin/conditionals.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | let mut grade: char = 'F'; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `grade` is never read [INFO] [stderr] --> src/bin/conditionals.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | grade = if marks >= 90 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variant `Magazine` is never constructed [INFO] [stderr] --> src/bin/structTask.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 23 | enum ItemType { [INFO] [stderr] | -------- variant in this enum [INFO] [stderr] 24 | Book, [INFO] [stderr] 25 | Magazine, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `ItemType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `id`, `title`, `year`, and `type_of_book` are never read [INFO] [stderr] --> src/bin/structTask.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 29 | struct Item { [INFO] [stderr] | ---- fields in this struct [INFO] [stderr] 30 | id: u32, [INFO] [stderr] | ^^ [INFO] [stderr] 31 | title: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 32 | year: u32, [INFO] [stderr] | ^^^^ [INFO] [stderr] 33 | type_of_book: ItemType, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Item` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: unused variable: `op_1` [INFO] [stderr] --> src/bin/genericsTask.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | let op_1 = Operation::Addition(5, 10); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `op_2` [INFO] [stderr] --> src/bin/genericsTask.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let op_2 = Operation::Multiplication(3.5, 2.0); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `op_3` [INFO] [stderr] --> src/bin/genericsTask.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let op_3 = Operation::Subtraction(3.5, 2.0); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `op_4` [INFO] [stderr] --> src/bin/genericsTask.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let op_4 = Operation::Division(2, 3); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_op_4` [INFO] [stderr] [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> src/bin/traits_associated_types.rs:12:5 [INFO] [stderr] | [INFO] [stderr] 11 | struct Km { [INFO] [stderr] | -- field in this struct [INFO] [stderr] 12 | value: u32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Km` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> src/bin/traits_associated_types.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 21 | struct Miles { [INFO] [stderr] | ----- field in this struct [INFO] [stderr] 22 | value: u32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Miles` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: variable `speed_Kmh` should have a snake case name [INFO] [stderr] --> src/bin/traits_associated_types.rs:69:9 [INFO] [stderr] | [INFO] [stderr] 69 | let speed_Kmh = Kmh { value: 90 }; [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `speed_kmh` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `distance_Km` should have a snake case name [INFO] [stderr] --> src/bin/traits_associated_types.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | let distance_Km = speed_Kmh.distance_in_three_hours(); [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `distance_km` [INFO] [stderr] [INFO] [stderr] warning: variable `speed_Mph` should have a snake case name [INFO] [stderr] --> src/bin/traits_associated_types.rs:77:9 [INFO] [stderr] | [INFO] [stderr] 77 | let speed_Mph = Mph { value: 90 }; [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `speed_mph` [INFO] [stderr] [INFO] [stderr] warning: variable `distance_Miles` should have a snake case name [INFO] [stderr] --> src/bin/traits_associated_types.rs:78:9 [INFO] [stderr] | [INFO] [stderr] 78 | let distance_Miles = speed_Mph.distance_in_three_hours(); [INFO] [stderr] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `distance_miles` [INFO] [stderr] [INFO] [stderr] warning: fields `0` and `1` are never read [INFO] [stderr] --> src/bin/struct.rs:57:21 [INFO] [stderr] | [INFO] [stderr] 57 | struct Point_2D(i32, i32); [INFO] [stderr] | -------- ^^^ ^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this struct [INFO] [stderr] | [INFO] [stderr] = help: consider removing these fields [INFO] [stderr] [INFO] [stderr] warning: fields `0`, `1`, and `2` are never read [INFO] [stderr] --> src/bin/struct.rs:58:21 [INFO] [stderr] | [INFO] [stderr] 58 | struct Point_3D(i32, i32, i32); [INFO] [stderr] | -------- ^^^ ^^^ ^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this struct [INFO] [stderr] | [INFO] [stderr] = help: consider removing these fields [INFO] [stderr] [INFO] [stderr] warning: struct `ABC` is never constructed [INFO] [stderr] --> src/bin/struct.rs:64:12 [INFO] [stderr] | [INFO] [stderr] 64 | struct ABC; [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/traits_object.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct Square { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 6 | side: f32, [INFO] [stderr] 7 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 8 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `line_width` and `color` are never read [INFO] [stderr] --> src/bin/traits_object.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 11 | struct Rectangle { [INFO] [stderr] | --------- fields in this struct [INFO] [stderr] ... [INFO] [stderr] 14 | line_width: u8, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 15 | color: String, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `draw_object` is never used [INFO] [stderr] --> src/bin/traits_object.rs:19:8 [INFO] [stderr] | [INFO] [stderr] 18 | trait Draw { [INFO] [stderr] | ---- method in this trait [INFO] [stderr] 19 | fn draw_object(&self); [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `returns_shape` is never used [INFO] [stderr] --> src/bin/traits_object.rs:62:4 [INFO] [stderr] | [INFO] [stderr] 62 | fn returns_shape(dimension: Vec) -> Box { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Circle` is never constructed [INFO] [stderr] --> src/bin/traits_object.rs:81:8 [INFO] [stderr] | [INFO] [stderr] 81 | struct Circle { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `shape_properties_static` is never used [INFO] [stderr] --> src/bin/traits_object.rs:86:4 [INFO] [stderr] | [INFO] [stderr] 86 | fn shape_properties_static(object: T) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `learn_rust999999911111999` (bin "conditionals") generated 2 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "structTask") generated 2 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_associated_typesTask" test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "genericsTask") generated 4 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_associated_types") generated 6 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traitsTask") generated 3 warnings (3 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_associated_types" test) generated 6 warnings (6 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "struct") generated 14 warnings (11 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "hashMapsTask" test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "generics") generated 11 warnings (11 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_object" test) generated 6 warnings [INFO] [stderr] warning: `learn_rust999999911111999` (bin "optionTask") generated 1 warning (1 duplicate) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/iterating_through_collections.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | let mut vec_1 = vec![45, 30, 85, 90, 41, 39]; [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/iterating_though_option.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let mut products = vec!["cellphone", "battery", "charger"]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `learn_rust999999911111999` (bin "genericsTask" test) generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "iterating_through_collections") generated 1 warning (run `cargo fix --bin "iterating_through_collections"` to apply 1 suggestion) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "super_traits" test) generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "iterators") generated 5 warnings (5 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "iterating_though_option") generated 1 warning (run `cargo fix --bin "iterating_though_option"` to apply 1 suggestion) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "conditionals" test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "functionTask") generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_object") generated 6 warnings (6 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "enums" test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits_derived_and_marker") generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "var") generated 16 warnings (16 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "combinators_task") generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "traits") generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "optionAndResult") generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "iterating_though_option" test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "structTask" test) generated 2 warnings (2 duplicates) [INFO] [stderr] warning: `learn_rust999999911111999` (bin "iterating_through_collections" test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `learn_rust999999911111999` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/learn_rust999999911111999-7e00a86103647b1b) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/closureTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/closureTask-1312aeb72c203009) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/closures.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/closures-018aec5e63f78a54) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/bin/combinators.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/combinators-bc04b5fdbbf6a48e) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/combinators_task.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/combinators_task-252892c76af078ab) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/conditionals.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/conditionals-24d30eb1f0813563) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/conditionalsTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/conditionalsTask-a42a3f87ffc6937a) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/enums.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/enums-0044795f04f5786b) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/functionTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/functionTask-7d0679842d92f850) [INFO] [stderr] Running unittests src/bin/function_pointers.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/function_pointers-f8736d396853aa92) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/function_pointers_task.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/function_pointers_task-8b9dda92c14a6d12) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/functions.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/functions-da170de2d921605c) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/generics.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/generics-204c8901ffc2a795) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/genericsTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/genericsTask-16167b592f24401f) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/hashMaps.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/hashMaps-93d78fe4159c1ac4) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/hashMapsTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/hashMapsTask-e724ed010a1d88ba) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/intoIter.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/intoIter-4b96096d2a0e0e97) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/iterating_though_option.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/iterating_though_option-993ce4cf16b9a9e1) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/iterating_through_collections.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/iterating_through_collections-db7c9cc428269a05) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/iterators.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/iterators-d2c72483b9cc537a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/loop.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/loop-fdf61098c5d4611a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/main-9a40e03920712713) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/optionAndResult.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/optionAndResult-46e8c5efe623b41a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/optionTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/optionTask-b542d1df612b05bc) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/struct.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/struct-2da0335be526678d) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/structTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/structTask-b91c1134e0b85372) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/super_traits.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/super_traits-8940b9dc28d0ddb5) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/traits.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits-03ae7e46fe82b722) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/traitsTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traitsTask-f50b49328d9a3594) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/bin/traits_associated_types.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits_associated_types-6dace666773e34ae) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/traits_associated_typesTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits_associated_typesTask-8d95651edfa5ad57) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/traits_associates_vs_generics.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits_associates_vs_generics-2eb92e313bfe615d) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/traits_bound.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits_bound-32426dbd7e270fe8) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/traits_boundTask.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits_boundTask-5b62d530cd6e89f5) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/traits_derived_and_marker.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits_derived_and_marker-23d83f491dfd70d2) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/bin/traits_object.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/traits_object-dbfc60d5ef56e7ea) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/var.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/var-a873d097a72a73a8) [INFO] [stdout] running 0 tests [INFO] [stderr] Running tests/order_test.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/order_test-1b3259c9c49f4217) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test test_total_bill_with_discount ... ok [INFO] [stdout] test test_total_bill_without_discount ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f223c26c47f0dde6da8d82ee922d743e301bbc0a9983bc93a25538b4c700865c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f223c26c47f0dde6da8d82ee922d743e301bbc0a9983bc93a25538b4c700865c", kill_on_drop: false }` [INFO] [stdout] f223c26c47f0dde6da8d82ee922d743e301bbc0a9983bc93a25538b4c700865c