[INFO] cloning repository https://github.com/g-hi3/rs-hello-world [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/g-hi3/rs-hello-world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-hi3%2Frs-hello-world", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-hi3%2Frs-hello-world'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1532e11131e84228a6226ef2a547a7c45b2a7b0a [INFO] testing g-hi3/rs-hello-world against 1.86.0 for beta-1.87-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg-hi3%2Frs-hello-world" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/g-hi3/rs-hello-world on toolchain 1.86.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/g-hi3/rs-hello-world [INFO] finished tweaking git repo https://github.com/g-hi3/rs-hello-world [INFO] tweaked toml for git repo https://github.com/g-hi3/rs-hello-world written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/g-hi3/rs-hello-world 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a4546ee7faa7f7a10de065f98f8fd2209ff764ec5873a95debf87595be608f42 [INFO] running `Command { std: "docker" "start" "-a" "a4546ee7faa7f7a10de065f98f8fd2209ff764ec5873a95debf87595be608f42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a4546ee7faa7f7a10de065f98f8fd2209ff764ec5873a95debf87595be608f42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4546ee7faa7f7a10de065f98f8fd2209ff764ec5873a95debf87595be608f42", kill_on_drop: false }` [INFO] [stdout] a4546ee7faa7f7a10de065f98f8fd2209ff764ec5873a95debf87595be608f42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 45fcb60ebb67bf9c327446a2db4f94bb39d928ff695de7a98a21f75fd7386cd6 [INFO] running `Command { std: "docker" "start" "-a" "45fcb60ebb67bf9c327446a2db4f94bb39d928ff695de7a98a21f75fd7386cd6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling getrandom v0.2.8 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling rs-hello-world v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `deliver_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn deliver_order() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> src/restaurant/front_of_house/hosting.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fix_incorrent_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | fn fix_incorrent_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cook_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `seasonal_fruit` is never read [INFO] [stdout] --> src/restaurant/lib.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 36 | pub struct Breakfast { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 40 | seasonal_fruit: String [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | let mut s = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let s = "hello".to_string(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let hello = String::from("السلام عليكم"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let hello = String::from("Dobrý den"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let hello = String::from("Hello"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let hello = String::from("שָׁלוֹם"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let hello = String::from("नमस्ते"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let hello = String::from("こんにちは"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let hello = String::from("안녕하세요"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let hello = String::from("你好"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let hello = String::from("Olá"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let hello = String::from("Здравствуйте"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let hello = String::from("Hola"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let s = format!("hello, {}", 15); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> src/string.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let s3 = s1 + &s2; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let s = &hello[0..4]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut s = String::new(); [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: `greeting_file` [INFO] [stdout] --> src/error-handling.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let greeting_file = match greeting_file_result { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_file` [INFO] [stdout] --> src/error-handling.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let another_file = File::create("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unwrap_file` [INFO] [stdout] --> src/error-handling.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let unwrap_file = File::open("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expect_file` [INFO] [stdout] --> src/error-handling.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let expect_file = File::open("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expect_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/error-handling.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let home: IpAddr = "127.0.0.1" [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_username_from_file` is never used [INFO] [stdout] --> src/error-handling.rs:72:4 [INFO] [stdout] | [INFO] [stdout] 72 | fn read_username_from_file() -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> src/smart-pointers.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let list = List::Cons(1, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/smart-pointers.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/smart-pointers.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let b = List::RcCons(3, Rc::clone(&a)); [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/smart-pointers.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let c = List::RcCons(4, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let y = match x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:85:10 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:85:13 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/patterns-and-matching.rs:85:16 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:145:17 [INFO] [stdout] | [INFO] [stdout] 145 | let Point { x, y } = p; [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:145:20 [INFO] [stdout] | [INFO] [stdout] 145 | let Point { x, y } = p; [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `feet` [INFO] [stdout] --> src/patterns-and-matching.rs:171:11 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_feet` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `inches` [INFO] [stdout] --> src/patterns-and-matching.rs:171:17 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inches` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:171:34 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:171:37 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | let x = 1..=4; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/smart-pointers.rs:149:12 [INFO] [stdout] | [INFO] [stdout] 149 | RcCons(i32, Rc), [INFO] [stdout] | ------ ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 149 - RcCons(i32, Rc), [INFO] [stdout] 149 + RcCons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `y` and `z` are never read [INFO] [stdout] --> src/patterns-and-matching.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Point3D { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | x: i32, [INFO] [stdout] 8 | y: i32, [INFO] [stdout] | ^ [INFO] [stdout] 9 | z: i32 [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Rgb` is never constructed [INFO] [stdout] --> src/patterns-and-matching.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Color { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 13 | Rgb(i32, i32, i32), [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed [INFO] [stdout] --> src/patterns-and-matching.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 18 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 19 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 20 | Write(String), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/smart-pointers.rs:150:10 [INFO] [stdout] | [INFO] [stdout] 150 | Cons(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 150 - Cons(i32, Box), [INFO] [stdout] 150 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> src/smart-pointers.rs:228:5 [INFO] [stdout] | [INFO] [stdout] 227 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 228 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 233 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` 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: `i` [INFO] [stdout] --> src/lifetimes.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let i = ImportantExcerpt { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/lifetimes.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let s: &'static str = "I have a static lifetime."; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `part` is never read [INFO] [stdout] --> src/lifetimes.rs:63:5 [INFO] [stdout] | [INFO] [stdout] 62 | struct ImportantExcerpt<'a> { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 63 | part: &'a str [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `level` and `announce_and_return_part` are never used [INFO] [stdout] --> src/lifetimes.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 71 | impl<'a> ImportantExcerpt<'a> { [INFO] [stdout] | ----------------------------- methods in this implementation [INFO] [stdout] 72 | fn level(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 77 | fn announce_and_return_part(&self, announcement: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this arithmetic operation will overflow [INFO] [stdout] --> src/iterator-performance.rs:12:26 [INFO] [stdout] | [INFO] [stdout] 12 | let prediction = coefficients.iter() [INFO] [stdout] | __________________________^ [INFO] [stdout] 13 | | .zip(&buffer[i - 12..i]) [INFO] [stdout] 14 | | .map(|(&c, &s)| c * s as i64) [INFO] [stdout] 15 | | .sum::() >> qlp_shift; [INFO] [stdout] | |______________________________________^ attempt to shift right by `96_i16`, which would overflow [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(arithmetic_overflow)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Shoe` is never constructed [INFO] [stdout] --> src/iterators.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct Shoe { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shoes_in_size` is never used [INFO] [stdout] --> src/iterators.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/aggregator/main.rs:94:24 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/aggregator/main.rs:94:31 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `some_function` is never used [INFO] [stdout] --> src/aggregator/main.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_summarizable` is never used [INFO] [stdout] --> src/aggregator/main.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn returns_summarizable() -> impl Summary { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pair` is never constructed [INFO] [stdout] --> src/aggregator/main.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 117 | struct Pair { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/aggregator/main.rs:123:8 [INFO] [stdout] | [INFO] [stdout] 122 | impl Pair { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 123 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `cmp_display` is never used [INFO] [stdout] --> src/aggregator/main.rs:130:8 [INFO] [stdout] | [INFO] [stdout] 129 | impl Pair { [INFO] [stdout] | ------------------------------------- method in this implementation [INFO] [stdout] 130 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `username` and `sign_in_count` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 2 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 5 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:52:14 [INFO] [stdout] | [INFO] [stdout] 52 | struct Color(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: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:53:14 [INFO] [stdout] | [INFO] [stdout] 53 | struct Point(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: unused variable: `list_of_strings` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let list_of_strings: Vec = list_of_numbers [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_strings` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let list_of_strings: Vec = list_of_numbers [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_statuses` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let list_of_statuses: Vec = (0u32..20) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/enum.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 6 - V4(u8, u8, u8, u8), [INFO] [stdout] 6 + V4((), (), (), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enum.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | V6(String) [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 - V6(String) [INFO] [stdout] 9 + V6(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enum.rs:31:11 [INFO] [stdout] | [INFO] [stdout] 31 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 31 - Write(String), [INFO] [stdout] 31 + Write(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `ChangeColor`, `Quit`, and `Move` are never constructed [INFO] [stdout] --> src/enum.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 30 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 33 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 34 | // This is the enum equivalent to a unit struct. [INFO] [stdout] 35 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 36 | // Enums can have named values. [INFO] [stdout] 37 | Move { x: i32, y: i32 } [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/advanced-functions-and-closures.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | Value(u32), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 8 - Value(u32), [INFO] [stdout] 8 + Value(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Stop` is never constructed [INFO] [stdout] --> src/advanced-functions-and-closures.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 7 | enum Status { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 8 | Value(u32), [INFO] [stdout] 9 | Stop [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_vector` [INFO] [stdout] --> src/macros.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let my_vector = custom_vec![1, 5, 9]; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_vector` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_point` [INFO] [stdout] --> src/generic-data-types.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let some_point = Point { x: 16, y: -2 }; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_point` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/generic-data-types.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 16 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 17 | y: T [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `x` is never used [INFO] [stdout] --> src/generic-data-types.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl Point { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] 31 | fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `xy` is never used [INFO] [stdout] --> src/generic-data-types.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl Point { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 42 | fn xy(&self) -> i32 { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expensive_closure` [INFO] [stdout] --> src/closures.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let expensive_closure = |num: u32| -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/advanced-types.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let s1: &str = "Hello there!"; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Kilometers` is never used [INFO] [stdout] --> src/advanced-types.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | type Kilometers = i32; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Thunk` is never used [INFO] [stdout] --> src/advanced-types.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | type Thunk = Box; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bar` is never used [INFO] [stdout] --> src/advanced-types.rs:33:4 [INFO] [stdout] | [INFO] [stdout] 33 | fn bar() -> ! { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `OutlinePrint` is never used [INFO] [stdout] --> src/advanced-traits.rs:120:7 [INFO] [stdout] | [INFO] [stdout] 120 | trait OutlinePrint: fmt::Display { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num_spaces` [INFO] [stdout] --> src/match.rs:72:16 [INFO] [stdout] | [INFO] [stdout] 72 | fn move_player(num_spaces: u8) {} [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Alabama` and `Alaska` are never constructed [INFO] [stdout] --> src/match.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | enum UsState { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 15 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 16 | Alaska, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` 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: variants `Penny`, `Nickel`, and `Quarter` are never constructed [INFO] [stdout] --> src/match.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 20 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 21 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 22 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 23 | Dime, [INFO] [stdout] 24 | Quarter(UsState) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> src/vector.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let v2 = vec![1, 2, 3]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | Int(i32), [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 56 - Int(i32), [INFO] [stdout] 56 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:57:11 [INFO] [stdout] | [INFO] [stdout] 57 | Float(f64), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 57 - Float(f64), [INFO] [stdout] 57 + Float(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:58:10 [INFO] [stdout] | [INFO] [stdout] 58 | Text(String) [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 58 - Text(String) [INFO] [stdout] 58 + Text(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `HELLO_WORLD` is never used [INFO] [stdout] --> src/unsafe-rust.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | static HELLO_WORLD: &str = "Hello, world!"; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Foo` is never used [INFO] [stdout] --> src/unsafe-rust.rs:14:14 [INFO] [stdout] | [INFO] [stdout] 14 | unsafe trait Foo { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `y` is never read [INFO] [stdout] --> src/unsafe-rust.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 21 | union Something { [INFO] [stdout] | --------- field in this union [INFO] [stdout] 22 | x: i32, [INFO] [stdout] 23 | y: i32 [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `score` [INFO] [stdout] --> src/hash-map.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let score = scores [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.02s [INFO] running `Command { std: "docker" "inspect" "45fcb60ebb67bf9c327446a2db4f94bb39d928ff695de7a98a21f75fd7386cd6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45fcb60ebb67bf9c327446a2db4f94bb39d928ff695de7a98a21f75fd7386cd6", kill_on_drop: false }` [INFO] [stdout] 45fcb60ebb67bf9c327446a2db4f94bb39d928ff695de7a98a21f75fd7386cd6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3138df535fff1c3c57e6f90132394ef8dc69a649d627caceeb75360f1b52324a [INFO] running `Command { std: "docker" "start" "-a" "3138df535fff1c3c57e6f90132394ef8dc69a649d627caceeb75360f1b52324a", kill_on_drop: false }` [INFO] [stdout] warning: function `deliver_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn deliver_order() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> src/restaurant/front_of_house/hosting.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fix_incorrent_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | fn fix_incorrent_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cook_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rs-hello-world v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `seasonal_fruit` is never read [INFO] [stdout] --> src/restaurant/lib.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 36 | pub struct Breakfast { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 40 | seasonal_fruit: String [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `greeting_file` [INFO] [stdout] --> src/error-handling.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let greeting_file = match greeting_file_result { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_file` [INFO] [stdout] --> src/error-handling.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let another_file = File::create("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unwrap_file` [INFO] [stdout] --> src/error-handling.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let unwrap_file = File::open("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expect_file` [INFO] [stdout] --> src/error-handling.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let expect_file = File::open("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expect_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/error-handling.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let home: IpAddr = "127.0.0.1" [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_username_from_file` is never used [INFO] [stdout] --> src/error-handling.rs:72:4 [INFO] [stdout] | [INFO] [stdout] 72 | fn read_username_from_file() -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `username` and `sign_in_count` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 2 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 5 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:52:14 [INFO] [stdout] | [INFO] [stdout] 52 | struct Color(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: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:53:14 [INFO] [stdout] | [INFO] [stdout] 53 | struct Point(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: unused variable: `num_spaces` [INFO] [stdout] --> src/match.rs:72:16 [INFO] [stdout] | [INFO] [stdout] 72 | fn move_player(num_spaces: u8) {} [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Alabama` and `Alaska` are never constructed [INFO] [stdout] --> src/match.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | enum UsState { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 15 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 16 | Alaska, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` 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: variants `Penny`, `Nickel`, and `Quarter` are never constructed [INFO] [stdout] --> src/match.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 20 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 21 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 22 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 23 | Dime, [INFO] [stdout] 24 | Quarter(UsState) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let y = match x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:85:10 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:85:13 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/patterns-and-matching.rs:85:16 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:145:17 [INFO] [stdout] | [INFO] [stdout] 145 | let Point { x, y } = p; [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:145:20 [INFO] [stdout] | [INFO] [stdout] 145 | let Point { x, y } = p; [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `feet` [INFO] [stdout] --> src/patterns-and-matching.rs:171:11 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_feet` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `inches` [INFO] [stdout] --> src/patterns-and-matching.rs:171:17 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inches` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:171:34 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:171:37 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | let x = 1..=4; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `y` and `z` are never read [INFO] [stdout] --> src/patterns-and-matching.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Point3D { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | x: i32, [INFO] [stdout] 8 | y: i32, [INFO] [stdout] | ^ [INFO] [stdout] 9 | z: i32 [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Rgb` is never constructed [INFO] [stdout] --> src/patterns-and-matching.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Color { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 13 | Rgb(i32, i32, i32), [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed [INFO] [stdout] --> src/patterns-and-matching.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 18 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 19 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 20 | Write(String), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | let mut s = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let s = "hello".to_string(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let hello = String::from("السلام عليكم"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let hello = String::from("Dobrý den"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let hello = String::from("Hello"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let hello = String::from("שָׁלוֹם"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let hello = String::from("नमस्ते"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let hello = String::from("こんにちは"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let hello = String::from("안녕하세요"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let hello = String::from("你好"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let hello = String::from("Olá"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let hello = String::from("Здравствуйте"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let hello = String::from("Hola"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let s = format!("hello, {}", 15); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> src/string.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let s3 = s1 + &s2; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let s = &hello[0..4]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut s = String::new(); [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 `OutlinePrint` is never used [INFO] [stdout] --> src/advanced-traits.rs:120:7 [INFO] [stdout] | [INFO] [stdout] 120 | trait OutlinePrint: fmt::Display { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `username` and `sign_in_count` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 2 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 5 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:52:14 [INFO] [stdout] | [INFO] [stdout] 52 | struct Color(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: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/defining-and-instantiating-structs.rs:53:14 [INFO] [stdout] | [INFO] [stdout] 53 | struct Point(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: function `deliver_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn deliver_order() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `seat_at_table` is never used [INFO] [stdout] --> src/restaurant/front_of_house/hosting.rs:2:4 [INFO] [stdout] | [INFO] [stdout] 2 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_order` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `serve_order` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `take_payment` is never used [INFO] [stdout] --> src/restaurant/front_of_house.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fix_incorrent_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | fn fix_incorrent_order() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `cook_order` is never used [INFO] [stdout] --> src/restaurant/lib.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | fn cook_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `seasonal_fruit` is never read [INFO] [stdout] --> src/restaurant/lib.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 36 | pub struct Breakfast { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 40 | seasonal_fruit: String [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let y = match x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:85:10 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:85:13 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> src/patterns-and-matching.rs:85:16 [INFO] [stdout] | [INFO] [stdout] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:145:17 [INFO] [stdout] | [INFO] [stdout] 145 | let Point { x, y } = p; [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:145:20 [INFO] [stdout] | [INFO] [stdout] 145 | let Point { x, y } = p; [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `feet` [INFO] [stdout] --> src/patterns-and-matching.rs:171:11 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_feet` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `inches` [INFO] [stdout] --> src/patterns-and-matching.rs:171:17 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inches` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:171:34 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `x: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/patterns-and-matching.rs:171:37 [INFO] [stdout] | [INFO] [stdout] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stdout] | ^ help: try ignoring the field: `y: _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/patterns-and-matching.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | let x = 1..=4; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lifetimes.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let i = ImportantExcerpt { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> src/vector.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let v2 = vec![1, 2, 3]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/lifetimes.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let s: &'static str = "I have a static lifetime."; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `part` is never read [INFO] [stdout] --> src/lifetimes.rs:63:5 [INFO] [stdout] | [INFO] [stdout] 62 | struct ImportantExcerpt<'a> { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 63 | part: &'a str [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `level` and `announce_and_return_part` are never used [INFO] [stdout] --> src/lifetimes.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 71 | impl<'a> ImportantExcerpt<'a> { [INFO] [stdout] | ----------------------------- methods in this implementation [INFO] [stdout] 72 | fn level(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 77 | fn announce_and_return_part(&self, announcement: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | Int(i32), [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 56 - Int(i32), [INFO] [stdout] 56 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:57:11 [INFO] [stdout] | [INFO] [stdout] 57 | Float(f64), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 57 - Float(f64), [INFO] [stdout] 57 + Float(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:58:10 [INFO] [stdout] | [INFO] [stdout] 58 | Text(String) [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 58 - Text(String) [INFO] [stdout] 58 + Text(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `y` and `z` are never read [INFO] [stdout] --> src/patterns-and-matching.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 6 | struct Point3D { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | x: i32, [INFO] [stdout] 8 | y: i32, [INFO] [stdout] | ^ [INFO] [stdout] 9 | z: i32 [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Rgb` is never constructed [INFO] [stdout] --> src/patterns-and-matching.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Color { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] 13 | Rgb(i32, i32, i32), [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Quit`, `Move`, and `Write` are never constructed [INFO] [stdout] --> src/patterns-and-matching.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 17 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 18 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 19 | Move { x: i32, y: i32 }, [INFO] [stdout] | ^^^^ [INFO] [stdout] 20 | Write(String), [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lifetimes.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let i = ImportantExcerpt { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/lifetimes.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let s: &'static str = "I have a static lifetime."; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `part` is never read [INFO] [stdout] --> src/lifetimes.rs:63:5 [INFO] [stdout] | [INFO] [stdout] 62 | struct ImportantExcerpt<'a> { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 63 | part: &'a str [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `level` and `announce_and_return_part` are never used [INFO] [stdout] --> src/lifetimes.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 71 | impl<'a> ImportantExcerpt<'a> { [INFO] [stdout] | ----------------------------- methods in this implementation [INFO] [stdout] 72 | fn level(&self) -> i32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 77 | fn announce_and_return_part(&self, announcement: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_vector` [INFO] [stdout] --> src/macros.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let my_vector = custom_vec![1, 5, 9]; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_vector` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | let mut s = String::new(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let s = "hello".to_string(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let hello = String::from("السلام عليكم"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let hello = String::from("Dobrý den"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let hello = String::from("Hello"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let hello = String::from("שָׁלוֹם"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let hello = String::from("नमस्ते"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let hello = String::from("こんにちは"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let hello = String::from("안녕하세요"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let hello = String::from("你好"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let hello = String::from("Olá"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let hello = String::from("Здравствуйте"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `hello` [INFO] [stdout] --> src/string.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let hello = String::from("Hola"); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let s = format!("hello, {}", 15); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> src/string.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | let s3 = s1 + &s2; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/string.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | let s = &hello[0..4]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/string.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut s = String::new(); [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: `list` [INFO] [stdout] --> src/smart-pointers.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let list = List::Cons(1, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/smart-pointers.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/smart-pointers.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let b = List::RcCons(3, Rc::clone(&a)); [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/smart-pointers.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let c = List::RcCons(4, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/smart-pointers.rs:149:12 [INFO] [stdout] | [INFO] [stdout] 149 | RcCons(i32, Rc), [INFO] [stdout] | ------ ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 149 - RcCons(i32, Rc), [INFO] [stdout] 149 + RcCons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/smart-pointers.rs:150:10 [INFO] [stdout] | [INFO] [stdout] 150 | Cons(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 150 - Cons(i32, Box), [INFO] [stdout] 150 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> src/smart-pointers.rs:228:5 [INFO] [stdout] | [INFO] [stdout] 227 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 228 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 233 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `HELLO_WORLD` is never used [INFO] [stdout] --> src/unsafe-rust.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | static HELLO_WORLD: &str = "Hello, world!"; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Foo` is never used [INFO] [stdout] --> src/unsafe-rust.rs:14:14 [INFO] [stdout] | [INFO] [stdout] 14 | unsafe trait Foo { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `y` is never read [INFO] [stdout] --> src/unsafe-rust.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 21 | union Something { [INFO] [stdout] | --------- field in this union [INFO] [stdout] 22 | x: i32, [INFO] [stdout] 23 | y: i32 [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/advanced-types.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let s1: &str = "Hello there!"; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Kilometers` is never used [INFO] [stdout] --> src/advanced-types.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | type Kilometers = i32; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Thunk` is never used [INFO] [stdout] --> src/advanced-types.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | type Thunk = Box; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bar` is never used [INFO] [stdout] --> src/advanced-types.rs:33:4 [INFO] [stdout] | [INFO] [stdout] 33 | fn bar() -> ! { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> src/smart-pointers.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let list = List::Cons(1, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/smart-pointers.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | let c = CustomSmartPointer { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/smart-pointers.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | let b = List::RcCons(3, Rc::clone(&a)); [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/smart-pointers.rs:80:13 [INFO] [stdout] | [INFO] [stdout] 80 | let c = List::RcCons(4, Rc::clone(&a)); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/smart-pointers.rs:149:12 [INFO] [stdout] | [INFO] [stdout] 149 | RcCons(i32, Rc), [INFO] [stdout] | ------ ^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 149 - RcCons(i32, Rc), [INFO] [stdout] 149 + RcCons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/smart-pointers.rs:150:10 [INFO] [stdout] | [INFO] [stdout] 150 | Cons(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 150 - Cons(i32, Box), [INFO] [stdout] 150 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `value` and `children` are never read [INFO] [stdout] --> src/smart-pointers.rs:228:5 [INFO] [stdout] | [INFO] [stdout] 227 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 228 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 233 | children: RefCell>>, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` 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: `t` [INFO] [stdout] --> src/aggregator/main.rs:94:24 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/aggregator/main.rs:94:31 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `some_function` is never used [INFO] [stdout] --> src/aggregator/main.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_summarizable` is never used [INFO] [stdout] --> src/aggregator/main.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn returns_summarizable() -> impl Summary { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pair` is never constructed [INFO] [stdout] --> src/aggregator/main.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 117 | struct Pair { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/aggregator/main.rs:123:8 [INFO] [stdout] | [INFO] [stdout] 122 | impl Pair { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 123 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `cmp_display` is never used [INFO] [stdout] --> src/aggregator/main.rs:130:8 [INFO] [stdout] | [INFO] [stdout] 129 | impl Pair { [INFO] [stdout] | ------------------------------------- method in this implementation [INFO] [stdout] 130 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_strings` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let list_of_strings: Vec = list_of_numbers [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_strings` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let list_of_strings: Vec = list_of_numbers [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_statuses` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let list_of_statuses: Vec = (0u32..20) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/advanced-functions-and-closures.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | Value(u32), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 8 - Value(u32), [INFO] [stdout] 8 + Value(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Stop` is never constructed [INFO] [stdout] --> src/advanced-functions-and-closures.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 7 | enum Status { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 8 | Value(u32), [INFO] [stdout] 9 | Stop [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this arithmetic operation will overflow [INFO] [stdout] --> src/iterator-performance.rs:12:26 [INFO] [stdout] | [INFO] [stdout] 12 | let prediction = coefficients.iter() [INFO] [stdout] | __________________________^ [INFO] [stdout] 13 | | .zip(&buffer[i - 12..i]) [INFO] [stdout] 14 | | .map(|(&c, &s)| c * s as i64) [INFO] [stdout] 15 | | .sum::() >> qlp_shift; [INFO] [stdout] | |______________________________________^ attempt to shift right by `96_i16`, which would overflow [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(arithmetic_overflow)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `OutlinePrint` is never used [INFO] [stdout] --> src/advanced-traits.rs:120:7 [INFO] [stdout] | [INFO] [stdout] 120 | trait OutlinePrint: fmt::Display { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `my_vector` [INFO] [stdout] --> src/macros.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let my_vector = custom_vec![1, 5, 9]; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_vector` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `score` [INFO] [stdout] --> src/hash-map.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let score = scores [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num_spaces` [INFO] [stdout] --> src/match.rs:72:16 [INFO] [stdout] | [INFO] [stdout] 72 | fn move_player(num_spaces: u8) {} [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Alabama` and `Alaska` are never constructed [INFO] [stdout] --> src/match.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | enum UsState { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] 15 | Alabama, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 16 | Alaska, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `UsState` 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: variants `Penny`, `Nickel`, and `Quarter` are never constructed [INFO] [stdout] --> src/match.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 20 | enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 21 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 22 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 23 | Dime, [INFO] [stdout] 24 | Quarter(UsState) [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Shoe` is never constructed [INFO] [stdout] --> src/iterators.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct Shoe { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shoes_in_size` is never used [INFO] [stdout] --> src/iterators.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `score` [INFO] [stdout] --> src/hash-map.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let score = scores [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `HELLO_WORLD` is never used [INFO] [stdout] --> src/unsafe-rust.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | static HELLO_WORLD: &str = "Hello, world!"; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Foo` is never used [INFO] [stdout] --> src/unsafe-rust.rs:14:14 [INFO] [stdout] | [INFO] [stdout] 14 | unsafe trait Foo { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `y` is never read [INFO] [stdout] --> src/unsafe-rust.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 21 | union Something { [INFO] [stdout] | --------- field in this union [INFO] [stdout] 22 | x: i32, [INFO] [stdout] 23 | y: i32 [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_point` [INFO] [stdout] --> src/generic-data-types.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let some_point = Point { x: 16, y: -2 }; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_point` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/generic-data-types.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 16 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 17 | y: T [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `x` is never used [INFO] [stdout] --> src/generic-data-types.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl Point { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] 31 | fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `xy` is never used [INFO] [stdout] --> src/generic-data-types.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl Point { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 42 | fn xy(&self) -> i32 { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_strings` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let list_of_strings: Vec = list_of_numbers [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_strings` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let list_of_strings: Vec = list_of_numbers [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `list_of_statuses` [INFO] [stdout] --> src/advanced-functions-and-closures.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let list_of_statuses: Vec = (0u32..20) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/advanced-functions-and-closures.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | Value(u32), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 8 - Value(u32), [INFO] [stdout] 8 + Value(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Stop` is never constructed [INFO] [stdout] --> src/advanced-functions-and-closures.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 7 | enum Status { [INFO] [stdout] | ------ variant in this enum [INFO] [stdout] 8 | Value(u32), [INFO] [stdout] 9 | Stop [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/advanced-types.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let s1: &str = "Hello there!"; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Kilometers` is never used [INFO] [stdout] --> src/advanced-types.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | type Kilometers = i32; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Thunk` is never used [INFO] [stdout] --> src/advanced-types.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | type Thunk = Box; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bar` is never used [INFO] [stdout] --> src/advanced-types.rs:33:4 [INFO] [stdout] | [INFO] [stdout] 33 | fn bar() -> ! { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> src/vector.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let v2 = vec![1, 2, 3]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | Int(i32), [INFO] [stdout] | --- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 56 - Int(i32), [INFO] [stdout] 56 + Int(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:57:11 [INFO] [stdout] | [INFO] [stdout] 57 | Float(f64), [INFO] [stdout] | ----- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 57 - Float(f64), [INFO] [stdout] 57 + Float(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/vector.rs:58:10 [INFO] [stdout] | [INFO] [stdout] 58 | Text(String) [INFO] [stdout] | ---- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 58 - Text(String) [INFO] [stdout] 58 + Text(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `greeting_file` [INFO] [stdout] --> src/error-handling.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let greeting_file = match greeting_file_result { [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `another_file` [INFO] [stdout] --> src/error-handling.rs:47:9 [INFO] [stdout] | [INFO] [stdout] 47 | let another_file = File::create("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `unwrap_file` [INFO] [stdout] --> src/error-handling.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let unwrap_file = File::open("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expect_file` [INFO] [stdout] --> src/error-handling.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | let expect_file = File::open("hello.txt") [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expect_file` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/error-handling.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | let home: IpAddr = "127.0.0.1" [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_username_from_file` is never used [INFO] [stdout] --> src/error-handling.rs:72:4 [INFO] [stdout] | [INFO] [stdout] 72 | fn read_username_from_file() -> Result> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expensive_closure` [INFO] [stdout] --> src/closures.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let expensive_closure = |num: u32| -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/enum.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 6 - V4(u8, u8, u8, u8), [INFO] [stdout] 6 + V4((), (), (), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enum.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | V6(String) [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 - V6(String) [INFO] [stdout] 9 + V6(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enum.rs:31:11 [INFO] [stdout] | [INFO] [stdout] 31 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 31 - Write(String), [INFO] [stdout] 31 + Write(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `ChangeColor`, `Quit`, and `Move` are never constructed [INFO] [stdout] --> src/enum.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 30 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 33 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 34 | // This is the enum equivalent to a unit struct. [INFO] [stdout] 35 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 36 | // Enums can have named values. [INFO] [stdout] 37 | Move { x: i32, y: i32 } [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this arithmetic operation will overflow [INFO] [stdout] --> src/iterator-performance.rs:12:26 [INFO] [stdout] | [INFO] [stdout] 12 | let prediction = coefficients.iter() [INFO] [stdout] | __________________________^ [INFO] [stdout] 13 | | .zip(&buffer[i - 12..i]) [INFO] [stdout] 14 | | .map(|(&c, &s)| c * s as i64) [INFO] [stdout] 15 | | .sum::() >> qlp_shift; [INFO] [stdout] | |______________________________________^ attempt to shift right by `96_i16`, which would overflow [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(arithmetic_overflow)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/aggregator/main.rs:94:24 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/aggregator/main.rs:94:31 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `some_function` is never used [INFO] [stdout] --> src/aggregator/main.rs:94:4 [INFO] [stdout] | [INFO] [stdout] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `returns_summarizable` is never used [INFO] [stdout] --> src/aggregator/main.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn returns_summarizable() -> impl Summary { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pair` is never constructed [INFO] [stdout] --> src/aggregator/main.rs:117:8 [INFO] [stdout] | [INFO] [stdout] 117 | struct Pair { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/aggregator/main.rs:123:8 [INFO] [stdout] | [INFO] [stdout] 122 | impl Pair { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 123 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `cmp_display` is never used [INFO] [stdout] --> src/aggregator/main.rs:130:8 [INFO] [stdout] | [INFO] [stdout] 129 | impl Pair { [INFO] [stdout] | ------------------------------------- method in this implementation [INFO] [stdout] 130 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `some_point` [INFO] [stdout] --> src/generic-data-types.rs:56:9 [INFO] [stdout] | [INFO] [stdout] 56 | let some_point = Point { x: 16, y: -2 }; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_point` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/generic-data-types.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 15 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 16 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 17 | y: T [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `x` is never used [INFO] [stdout] --> src/generic-data-types.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 30 | impl Point { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] 31 | fn x(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `xy` is never used [INFO] [stdout] --> src/generic-data-types.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl Point { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 42 | fn xy(&self) -> i32 { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/enum.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 6 - V4(u8, u8, u8, u8), [INFO] [stdout] 6 + V4((), (), (), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enum.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | V6(String) [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 - V6(String) [INFO] [stdout] 9 + V6(()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/enum.rs:31:11 [INFO] [stdout] | [INFO] [stdout] 31 | Write(String), [INFO] [stdout] | ----- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 31 - Write(String), [INFO] [stdout] 31 + Write(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `ChangeColor`, `Quit`, and `Move` are never constructed [INFO] [stdout] --> src/enum.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 30 | enum Message { [INFO] [stdout] | ------- variants in this enum [INFO] [stdout] ... [INFO] [stdout] 33 | ChangeColor(i32, i32, i32), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 34 | // This is the enum equivalent to a unit struct. [INFO] [stdout] 35 | Quit, [INFO] [stdout] | ^^^^ [INFO] [stdout] 36 | // Enums can have named values. [INFO] [stdout] 37 | Move { x: i32, y: i32 } [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expensive_closure` [INFO] [stdout] --> src/closures.rs:51:9 [INFO] [stdout] | [INFO] [stdout] 51 | let expensive_closure = |num: u32| -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 3.54s [INFO] running `Command { std: "docker" "inspect" "3138df535fff1c3c57e6f90132394ef8dc69a649d627caceeb75360f1b52324a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3138df535fff1c3c57e6f90132394ef8dc69a649d627caceeb75360f1b52324a", kill_on_drop: false }` [INFO] [stdout] 3138df535fff1c3c57e6f90132394ef8dc69a649d627caceeb75360f1b52324a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a0d7d6a87634255014f6dbac2f6d94ed66a9165128c64a5951da84eb0cb9202b [INFO] running `Command { std: "docker" "start" "-a" "a0d7d6a87634255014f6dbac2f6d94ed66a9165128c64a5951da84eb0cb9202b", kill_on_drop: false }` [INFO] [stderr] warning: function `deliver_order` is never used [INFO] [stderr] --> src/restaurant/lib.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn deliver_order() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `seat_at_table` is never used [INFO] [stderr] --> src/restaurant/front_of_house/hosting.rs:2:4 [INFO] [stderr] | [INFO] [stderr] 2 | fn seat_at_table() {} [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `take_order` is never used [INFO] [stderr] --> src/restaurant/front_of_house.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | fn take_order() {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `serve_order` is never used [INFO] [stderr] --> src/restaurant/front_of_house.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | fn serve_order() {} [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `take_payment` is never used [INFO] [stderr] --> src/restaurant/front_of_house.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | fn take_payment() {} [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `fix_incorrent_order` is never used [INFO] [stderr] --> src/restaurant/lib.rs:27:8 [INFO] [stderr] | [INFO] [stderr] 27 | fn fix_incorrent_order() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `cook_order` is never used [INFO] [stderr] --> src/restaurant/lib.rs:33:8 [INFO] [stderr] | [INFO] [stderr] 33 | fn cook_order() {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `seasonal_fruit` is never read [INFO] [stderr] --> src/restaurant/lib.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 36 | pub struct Breakfast { [INFO] [stderr] | --------- field in this struct [INFO] [stderr] ... [INFO] [stderr] 40 | seasonal_fruit: String [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (lib) generated 8 warnings [INFO] [stderr] warning: trait `OutlinePrint` is never used [INFO] [stderr] --> src/advanced-traits.rs:120:7 [INFO] [stderr] | [INFO] [stderr] 120 | trait OutlinePrint: fmt::Display { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "advanced-traits" test) generated 1 warning [INFO] [stderr] warning: unused variable: `some_point` [INFO] [stderr] --> src/generic-data-types.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | let some_point = Point { x: 16, y: -2 }; [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_point` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `x` and `y` are never read [INFO] [stderr] --> src/generic-data-types.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 15 | struct Point { [INFO] [stderr] | ----- fields in this struct [INFO] [stderr] 16 | x: T, [INFO] [stderr] | ^ [INFO] [stderr] 17 | y: T [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `x` is never used [INFO] [stderr] --> src/generic-data-types.rs:31:8 [INFO] [stderr] | [INFO] [stderr] 30 | impl Point { [INFO] [stderr] | ---------------- method in this implementation [INFO] [stderr] 31 | fn x(&self) -> &T { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: method `xy` is never used [INFO] [stderr] --> src/generic-data-types.rs:42:8 [INFO] [stderr] | [INFO] [stderr] 41 | impl Point { [INFO] [stderr] | --------------- method in this implementation [INFO] [stderr] 42 | fn xy(&self) -> i32 { [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "generic-data-types" test) generated 4 warnings [INFO] [stderr] warning: this arithmetic operation will overflow [INFO] [stderr] --> src/iterator-performance.rs:12:26 [INFO] [stderr] | [INFO] [stderr] 12 | let prediction = coefficients.iter() [INFO] [stderr] | __________________________^ [INFO] [stderr] 13 | | .zip(&buffer[i - 12..i]) [INFO] [stderr] 14 | | .map(|(&c, &s)| c * s as i64) [INFO] [stderr] 15 | | .sum::() >> qlp_shift; [INFO] [stderr] | |______________________________________^ attempt to shift right by `96_i16`, which would overflow [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(arithmetic_overflow)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "iterator-performance") generated 1 warning [INFO] [stderr] warning: unused variable: `list_of_strings` [INFO] [stderr] --> src/advanced-functions-and-closures.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let list_of_strings: Vec = list_of_numbers [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `list_of_strings` [INFO] [stderr] --> src/advanced-functions-and-closures.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let list_of_strings: Vec = list_of_numbers [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_strings` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `list_of_statuses` [INFO] [stderr] --> src/advanced-functions-and-closures.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | let list_of_statuses: Vec = (0u32..20) [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_statuses` [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/advanced-functions-and-closures.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | Value(u32), [INFO] [stderr] | ----- ^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 8 - Value(u32), [INFO] [stderr] 8 + Value(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: variant `Stop` is never constructed [INFO] [stderr] --> src/advanced-functions-and-closures.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 7 | enum Status { [INFO] [stderr] | ------ variant in this enum [INFO] [stderr] 8 | Value(u32), [INFO] [stderr] 9 | Stop [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "advanced-functions-and-closures") generated 5 warnings [INFO] [stderr] warning: unused variable: `score` [INFO] [stderr] --> src/hash-map.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let score = scores [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_score` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "hash-map" test) generated 1 warning [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lifetimes.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let i = ImportantExcerpt { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/lifetimes.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let s: &'static str = "I have a static lifetime."; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: field `part` is never read [INFO] [stderr] --> src/lifetimes.rs:63:5 [INFO] [stderr] | [INFO] [stderr] 62 | struct ImportantExcerpt<'a> { [INFO] [stderr] | ---------------- field in this struct [INFO] [stderr] 63 | part: &'a str [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: methods `level` and `announce_and_return_part` are never used [INFO] [stderr] --> src/lifetimes.rs:72:8 [INFO] [stderr] | [INFO] [stderr] 71 | impl<'a> ImportantExcerpt<'a> { [INFO] [stderr] | ----------------------------- methods in this implementation [INFO] [stderr] 72 | fn level(&self) -> i32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] ... [INFO] [stderr] 77 | fn announce_and_return_part(&self, announcement: &str) -> &str { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "lifetimes" test) generated 4 warnings [INFO] [stderr] warning: unused variable: `expensive_closure` [INFO] [stderr] --> src/closures.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | let expensive_closure = |num: u32| -> u32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_closure` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "closures") generated 1 warning [INFO] [stderr] warning: unused variable: `my_vector` [INFO] [stderr] --> src/macros.rs:57:9 [INFO] [stderr] | [INFO] [stderr] 57 | let my_vector = custom_vec![1, 5, 9]; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_vector` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "macros" test) generated 1 warning [INFO] [stderr] warning: unused variable: `list` [INFO] [stderr] --> src/smart-pointers.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let list = List::Cons(1, [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/smart-pointers.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let c = CustomSmartPointer { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/smart-pointers.rs:77:9 [INFO] [stderr] | [INFO] [stderr] 77 | let b = List::RcCons(3, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/smart-pointers.rs:80:13 [INFO] [stderr] | [INFO] [stderr] 80 | let c = List::RcCons(4, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: fields `0` and `1` are never read [INFO] [stderr] --> src/smart-pointers.rs:149:12 [INFO] [stderr] | [INFO] [stderr] 149 | RcCons(i32, Rc), [INFO] [stderr] | ------ ^^^ ^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stderr] | [INFO] [stderr] 149 - RcCons(i32, Rc), [INFO] [stderr] 149 + RcCons((), ()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: fields `0` and `1` are never read [INFO] [stderr] --> src/smart-pointers.rs:150:10 [INFO] [stderr] | [INFO] [stderr] 150 | Cons(i32, Box), [INFO] [stderr] | ---- ^^^ ^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] | [INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stderr] | [INFO] [stderr] 150 - Cons(i32, Box), [INFO] [stderr] 150 + Cons((), ()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: fields `value` and `children` are never read [INFO] [stderr] --> src/smart-pointers.rs:228:5 [INFO] [stderr] | [INFO] [stderr] 227 | struct Node { [INFO] [stderr] | ---- fields in this struct [INFO] [stderr] 228 | value: i32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] ... [INFO] [stderr] 233 | children: RefCell>>, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t` [INFO] [stderr] --> src/aggregator/main.rs:94:24 [INFO] [stderr] | [INFO] [stderr] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `u` [INFO] [stderr] --> src/aggregator/main.rs:94:31 [INFO] [stderr] | [INFO] [stderr] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stderr] [INFO] [stderr] warning: function `some_function` is never used [INFO] [stderr] --> src/aggregator/main.rs:94:4 [INFO] [stderr] | [INFO] [stderr] 94 | fn some_function(t: &T, u: &U) -> i32 [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `returns_summarizable` is never used [INFO] [stderr] --> src/aggregator/main.rs:106:4 [INFO] [stderr] | [INFO] [stderr] 106 | fn returns_summarizable() -> impl Summary { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Pair` is never constructed [INFO] [stderr] --> src/aggregator/main.rs:117:8 [INFO] [stderr] | [INFO] [stderr] 117 | struct Pair { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> src/aggregator/main.rs:123:8 [INFO] [stderr] | [INFO] [stderr] 122 | impl Pair { [INFO] [stderr] | --------------- associated function in this implementation [INFO] [stderr] 123 | fn new(x: T, y: T) -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: method `cmp_display` is never used [INFO] [stderr] --> src/aggregator/main.rs:130:8 [INFO] [stderr] | [INFO] [stderr] 129 | impl Pair { [INFO] [stderr] | ------------------------------------- method in this implementation [INFO] [stderr] 130 | fn cmp_display(&self) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: fields `username` and `sign_in_count` are never read [INFO] [stderr] --> src/defining-and-instantiating-structs.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 1 | struct User { [INFO] [stderr] | ---- fields in this struct [INFO] [stderr] 2 | username: String, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 5 | sign_in_count: u64, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `0`, `1`, and `2` are never read [INFO] [stderr] --> src/defining-and-instantiating-structs.rs:52:14 [INFO] [stderr] | [INFO] [stderr] 52 | struct Color(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: fields `0`, `1`, and `2` are never read [INFO] [stderr] --> src/defining-and-instantiating-structs.rs:53:14 [INFO] [stderr] | [INFO] [stderr] 53 | struct Point(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: unused variable: `greeting_file` [INFO] [stderr] --> src/error-handling.rs:33:9 [INFO] [stderr] | [INFO] [stderr] 33 | let greeting_file = match greeting_file_result { [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_greeting_file` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `another_file` [INFO] [stderr] --> src/error-handling.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let another_file = File::create("hello.txt") [INFO] [stderr] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_another_file` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `unwrap_file` [INFO] [stderr] --> src/error-handling.rs:51:9 [INFO] [stderr] | [INFO] [stderr] 51 | let unwrap_file = File::open("hello.txt") [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwrap_file` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `expect_file` [INFO] [stderr] --> src/error-handling.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | let expect_file = File::open("hello.txt") [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expect_file` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/error-handling.rs:60:9 [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 60 | let home: IpAddr = "127.0.0.1" [INFO] [stdout] running 0 tests [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] warning: function `read_username_from_file` is never used [INFO] [stdout] [INFO] [stderr] --> src/error-handling.rs:72:4 [INFO] [stderr] | [INFO] [stderr] 72 | fn read_username_from_file() -> Result> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stderr] --> src/enum.rs:6:8 [INFO] [stderr] | [INFO] [stderr] 6 | V4(u8, u8, u8, u8), [INFO] [stderr] | -- ^^ ^^ ^^ ^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stderr] | [INFO] [stderr] 6 - V4(u8, u8, u8, u8), [INFO] [stderr] 6 + V4((), (), (), ()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/enum.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | V6(String) [INFO] [stderr] | -- ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 9 - V6(String) [INFO] [stderr] 9 + V6(()) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/enum.rs:31:11 [INFO] [stderr] | [INFO] [stderr] 31 | Write(String), [INFO] [stderr] | ----- ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 31 - Write(String), [INFO] [stderr] 31 + Write(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: variants `ChangeColor`, `Quit`, and `Move` are never constructed [INFO] [stderr] --> src/enum.rs:33:5 [INFO] [stderr] | [INFO] [stderr] 30 | enum Message { [INFO] [stderr] | ------- variants in this enum [INFO] [stderr] ... [INFO] [stderr] 33 | ChangeColor(i32, i32, i32), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 34 | // This is the enum equivalent to a unit struct. [INFO] [stderr] 35 | Quit, [INFO] [stderr] | ^^^^ [INFO] [stderr] 36 | // Enums can have named values. [INFO] [stderr] 37 | Move { x: i32, y: i32 } [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `num_spaces` [INFO] [stderr] --> src/match.rs:72:16 [INFO] [stderr] | [INFO] [stderr] 72 | fn move_player(num_spaces: u8) {} [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_spaces` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variants `Alabama` and `Alaska` are never constructed [INFO] [stderr] --> src/match.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 14 | enum UsState { [INFO] [stderr] | ------- variants in this enum [INFO] [stderr] 15 | Alabama, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] 16 | Alaska, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `UsState` 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: variants `Penny`, `Nickel`, and `Quarter` are never constructed [INFO] [stderr] --> src/match.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 20 | enum Coin { [INFO] [stderr] | ---- variants in this enum [INFO] [stderr] 21 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] 22 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 23 | Dime, [INFO] [stderr] 24 | Quarter(UsState) [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "smart-pointers") generated 7 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "aggregator") generated 7 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "defining-and-instantiating-structs") generated 3 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "error-handling" test) generated 6 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "enum" test) generated 4 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "lifetimes") generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "macros") generated 1 warning (1 duplicate) [INFO] [stderr] warning: `rs-hello-world` (bin "aggregator" test) generated 7 warnings (7 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "match" test) generated 3 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "advanced-functions-and-closures" test) generated 5 warnings (5 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "error-handling") generated 6 warnings (6 duplicates) [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> src/advanced-types.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let s1: &str = "Hello there!"; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type alias `Kilometers` is never used [INFO] [stderr] --> src/advanced-types.rs:7:6 [INFO] [stderr] | [INFO] [stderr] 7 | type Kilometers = i32; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type alias `Thunk` is never used [INFO] [stderr] --> src/advanced-types.rs:9:6 [INFO] [stderr] | [INFO] [stderr] 9 | type Thunk = Box; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `bar` is never used [INFO] [stderr] --> src/advanced-types.rs:33:4 [INFO] [stderr] | [INFO] [stderr] 33 | fn bar() -> ! { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Shoe` is never constructed [INFO] [stderr] --> src/iterators.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | struct Shoe { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `shoes_in_size` is never used [INFO] [stderr] --> src/iterators.rs:26:4 [INFO] [stderr] | [INFO] [stderr] 26 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/vector.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let v2 = vec![1, 2, 3]; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/vector.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | Int(i32), [INFO] [stderr] | --- ^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 56 - Int(i32), [INFO] [stderr] 56 + Int(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/vector.rs:57:11 [INFO] [stderr] | [INFO] [stderr] 57 | Float(f64), [INFO] [stderr] | ----- ^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 57 - Float(f64), [INFO] [stderr] 57 + Float(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/vector.rs:58:10 [INFO] [stderr] | [INFO] [stderr] 58 | Text(String) [INFO] [stderr] | ---- ^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 58 - Text(String) [INFO] [stderr] 58 + Text(()) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "advanced-types") generated 4 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "generic-data-types") generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "iterator-performance" test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `rs-hello-world` (bin "iterators") generated 2 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "advanced-types" test) generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "vector" test) generated 4 warnings [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/patterns-and-matching.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let y = match x { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/patterns-and-matching.rs:85:10 [INFO] [stderr] | [INFO] [stderr] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/patterns-and-matching.rs:85:13 [INFO] [stderr] | [INFO] [stderr] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/patterns-and-matching.rs:85:16 [INFO] [stderr] | [INFO] [stderr] 85 | let (x, y, z) = (1, 2, 3); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/patterns-and-matching.rs:145:17 [INFO] [stderr] | [INFO] [stderr] 145 | let Point { x, y } = p; [INFO] [stderr] | ^ help: try ignoring the field: `x: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/patterns-and-matching.rs:145:20 [INFO] [stderr] | [INFO] [stderr] 145 | let Point { x, y } = p; [INFO] [stderr] | ^ help: try ignoring the field: `y: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `feet` [INFO] [stderr] --> src/patterns-and-matching.rs:171:11 [INFO] [stderr] | [INFO] [stderr] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_feet` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `inches` [INFO] [stderr] --> src/patterns-and-matching.rs:171:17 [INFO] [stderr] | [INFO] [stderr] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inches` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/patterns-and-matching.rs:171:34 [INFO] [stderr] | [INFO] [stderr] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stderr] | ^ help: try ignoring the field: `x: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/patterns-and-matching.rs:171:37 [INFO] [stderr] | [INFO] [stderr] 171 | let ((feet, inches), Point { x, y }) = ((3, 10), Point { x: 3, y: -10 }); [INFO] [stderr] | ^ help: try ignoring the field: `y: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/patterns-and-matching.rs:178:9 [INFO] [stderr] | [INFO] [stderr] 178 | let x = 1..=4; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: fields `y` and `z` are never read [INFO] [stderr] --> src/patterns-and-matching.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 6 | struct Point3D { [INFO] [stderr] | ------- fields in this struct [INFO] [stderr] 7 | x: i32, [INFO] [stderr] 8 | y: i32, [INFO] [stderr] | ^ [INFO] [stderr] 9 | z: i32 [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant `Rgb` is never constructed [INFO] [stderr] --> src/patterns-and-matching.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 12 | enum Color { [INFO] [stderr] | ----- variant in this enum [INFO] [stderr] 13 | Rgb(i32, i32, i32), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variants `Quit`, `Move`, and `Write` are never constructed [INFO] [stderr] --> src/patterns-and-matching.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 17 | enum Message { [INFO] [stderr] | ------- variants in this enum [INFO] [stderr] 18 | Quit, [INFO] [stderr] | ^^^^ [INFO] [stderr] 19 | Move { x: i32, y: i32 }, [INFO] [stderr] | ^^^^ [INFO] [stderr] 20 | Write(String), [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/string.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut s = String::new(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/string.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let s = "hello".to_string(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let hello = String::from("السلام عليكم"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let hello = String::from("Dobrý den"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let hello = String::from("Hello"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let hello = String::from("שָׁלוֹם"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let hello = String::from("नमस्ते"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | let hello = String::from("こんにちは"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let hello = String::from("안녕하세요"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let hello = String::from("你好"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let hello = String::from("Olá"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let hello = String::from("Здравствуйте"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello` [INFO] [stderr] --> src/string.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let hello = String::from("Hola"); [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_hello` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/string.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let s = format!("hello, {}", 15); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s3` [INFO] [stderr] --> src/string.rs:31:9 [INFO] [stderr] | [INFO] [stderr] 31 | let s3 = s1 + &s2; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/string.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let s = &hello[0..4]; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/string.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut s = String::new(); [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: `rs-hello-world` (bin "patterns-and-matching") generated 14 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "vector") generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "hash-map") generated 1 warning (1 duplicate) [INFO] [stderr] warning: `rs-hello-world` (bin "string") generated 17 warnings (run `cargo fix --bin "string"` to apply 1 suggestion) [INFO] [stderr] warning: `rs-hello-world` (bin "string" test) generated 17 warnings (17 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "advanced-traits") generated 1 warning (1 duplicate) [INFO] [stderr] warning: static `HELLO_WORLD` is never used [INFO] [stderr] --> src/unsafe-rust.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | static HELLO_WORLD: &str = "Hello, world!"; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait `Foo` is never used [INFO] [stderr] --> src/unsafe-rust.rs:14:14 [INFO] [stderr] | [INFO] [stderr] 14 | unsafe trait Foo { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: field `y` is never read [INFO] [stderr] --> src/unsafe-rust.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 21 | union Something { [INFO] [stderr] | --------- field in this union [INFO] [stderr] 22 | x: i32, [INFO] [stderr] 23 | y: i32 [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: `rs-hello-world` (bin "closures" test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: `rs-hello-world` (bin "smart-pointers" test) generated 7 warnings (7 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "unsafe-rust" test) generated 3 warnings [INFO] [stderr] warning: `rs-hello-world` (bin "unsafe-rust") generated 3 warnings (3 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "defining-and-instantiating-structs" test) generated 3 warnings (3 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "match") generated 3 warnings (3 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "enum") generated 4 warnings (4 duplicates) [INFO] [stderr] warning: `rs-hello-world` (bin "patterns-and-matching" test) generated 14 warnings (14 duplicates) [INFO] [stderr] warning: `rs-hello-world` (lib test) generated 8 warnings (8 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/restaurant/lib.rs (/opt/rustwide/target/debug/deps/restaurant-0a835d6fb66415bc) [INFO] [stderr] Running unittests src/advanced-functions-and-closures.rs (/opt/rustwide/target/debug/deps/advanced_functions_and_closures-1cc0412c8d2a057c) [INFO] [stdout] [INFO] [stderr] Running unittests src/advanced-traits.rs (/opt/rustwide/target/debug/deps/advanced_traits-2069fff8a7962a0d) [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/advanced-types.rs (/opt/rustwide/target/debug/deps/advanced_types-cad21f711b9d59f1) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/aggregator/main.rs (/opt/rustwide/target/debug/deps/aggregator-c99785c4df332661) [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/appendix.rs (/opt/rustwide/target/debug/deps/appendix-167e2f0e62d6666c) [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/backyard/main.rs (/opt/rustwide/target/debug/deps/backyard-edcd8f841d4a16d5) [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/closures.rs (/opt/rustwide/target/debug/deps/closures-40423e480e455dc8) [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/data-types.rs (/opt/rustwide/target/debug/deps/data_types-4e2a41a6f52b966f) [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/defining-and-instantiating-structs.rs (/opt/rustwide/target/debug/deps/defining_and_instantiating_structs-7af04755b4adb154) [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/enum.rs (/opt/rustwide/target/debug/deps/enum-32bae76b3cabca20) [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/error-handling.rs (/opt/rustwide/target/debug/deps/error_handling-82ae2ea3c5443d81) [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/fearless-concurrency.rs (/opt/rustwide/target/debug/deps/fearless_concurrency-a88e0b36b4319390) [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/functions.rs (/opt/rustwide/target/debug/deps/functions-38c79df14bc92072) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/generic-data-types.rs (/opt/rustwide/target/debug/deps/generic_data_types-c6a6f15b103f57c4) [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/guessing-game.rs (/opt/rustwide/target/debug/deps/guessing_game-a00846eeca2c11a7) [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/hash-map.rs (/opt/rustwide/target/debug/deps/hash_map-91ddd8afdba46625) [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/hello-world.rs (/opt/rustwide/target/debug/deps/hello_world-5d8fd2b814b99b7b) [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/if-and-loops.rs (/opt/rustwide/target/debug/deps/if_and_loops-6e0fb8d92a8bb685) [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/if-let.rs (/opt/rustwide/target/debug/deps/if_let-bf3c3a95ff89fe98) [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/iterator-performance.rs (/opt/rustwide/target/debug/deps/iterator_performance-74f75627df4c669c) [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/iterators.rs (/opt/rustwide/target/debug/deps/iterators-5873fad2656797d1) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::filters_by_size ... ok [INFO] [stdout] test iterator_sum ... ok [INFO] [stdout] test iterator_demonstration ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/lifetimes.rs (/opt/rustwide/target/debug/deps/lifetimes-47128caa8854f9db) [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/macros.rs (/opt/rustwide/target/debug/deps/macros-52761e851ef62726) [INFO] [stderr] Running unittests src/match.rs (/opt/rustwide/target/debug/deps/match-f06448249aa1fe66) [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/method-syntax.rs (/opt/rustwide/target/debug/deps/method_syntax-a41076c22237f874) [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/ownership.rs (/opt/rustwide/target/debug/deps/ownership-2812e84ef44df850) [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/patterns-and-matching.rs (/opt/rustwide/target/debug/deps/patterns_and_matching-2d1334a34f20f44f) [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/program-using-structs.rs (/opt/rustwide/target/debug/deps/program_using_structs-68ae7da4c8fb846d) [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/publishing.rs (/opt/rustwide/target/debug/deps/publishing-c240ae4edb4ba4db) [INFO] [stderr] Running unittests src/references-and-borrowing.rs (/opt/rustwide/target/debug/deps/references_and_borrowing-4e4b063523930beb) [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/removing-duplication.rs (/opt/rustwide/target/debug/deps/removing_duplication-a0975226c5bd3f4f) [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/slice-type.rs (/opt/rustwide/target/debug/deps/slice_type-868bc8d57486428d) [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/smart-pointers.rs (/opt/rustwide/target/debug/deps/smart_pointers-fb4eb04e88b20760) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::it_sends_an_over_75_percent_warning_message ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/string.rs (/opt/rustwide/target/debug/deps/string-67de63aa62c3572c) [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/unsafe-rust.rs (/opt/rustwide/target/debug/deps/unsafe_rust-44012791aafaa133) [INFO] [stdout] [INFO] [stderr] Running unittests src/variables-and-mutability.rs (/opt/rustwide/target/debug/deps/variables_and_mutability-aa11b731a99804ce) [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] [stderr] Running unittests src/vector.rs (/opt/rustwide/target/debug/deps/vector-8f1f113ee1d5bbaf) [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] [stderr] Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-d15e415f69a023bc) [INFO] [stdout] running 1 test [INFO] [stdout] test it_adds_two ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests restaurant [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] running `Command { std: "docker" "inspect" "a0d7d6a87634255014f6dbac2f6d94ed66a9165128c64a5951da84eb0cb9202b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0d7d6a87634255014f6dbac2f6d94ed66a9165128c64a5951da84eb0cb9202b", kill_on_drop: false }` [INFO] [stdout] a0d7d6a87634255014f6dbac2f6d94ed66a9165128c64a5951da84eb0cb9202b