[INFO] fetching crate learn_rust999999911111999 0.1.0... [INFO] checking learn_rust999999911111999-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1 [INFO] extracting crate learn_rust999999911111999 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate learn_rust999999911111999 0.1.0 [INFO] finished tweaking crates.io crate learn_rust999999911111999 0.1.0 [INFO] tweaked toml for crates.io crate learn_rust999999911111999 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate learn_rust999999911111999 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate learn_rust999999911111999 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e5935b9ce6a3409b380ee7ea05a340ca20f5d231bda334bba79a1cd9b982a7b3 [INFO] running `Command { std: "docker" "start" "-a" "e5935b9ce6a3409b380ee7ea05a340ca20f5d231bda334bba79a1cd9b982a7b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5935b9ce6a3409b380ee7ea05a340ca20f5d231bda334bba79a1cd9b982a7b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5935b9ce6a3409b380ee7ea05a340ca20f5d231bda334bba79a1cd9b982a7b3", kill_on_drop: false }` [INFO] [stdout] e5935b9ce6a3409b380ee7ea05a340ca20f5d231bda334bba79a1cd9b982a7b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 09b70b7d7909c763f53459c2570cd3bb2025f898f0506d58f22a0a6d8f7f36f4 [INFO] running `Command { std: "docker" "start" "-a" "09b70b7d7909c763f53459c2570cd3bb2025f898f0506d58f22a0a6d8f7f36f4", kill_on_drop: false }` [INFO] [stderr] Checking array_tool v1.0.3 [INFO] [stderr] Checking 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: 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: `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: 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: 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: 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: 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 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: 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 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: 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 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: 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: 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 `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: 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: 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: 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: 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: 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: 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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.62s [INFO] running `Command { std: "docker" "inspect" "09b70b7d7909c763f53459c2570cd3bb2025f898f0506d58f22a0a6d8f7f36f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09b70b7d7909c763f53459c2570cd3bb2025f898f0506d58f22a0a6d8f7f36f4", kill_on_drop: false }` [INFO] [stdout] 09b70b7d7909c763f53459c2570cd3bb2025f898f0506d58f22a0a6d8f7f36f4