[INFO] cloning repository https://github.com/xklf2014/rust_study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xklf2014/rust_study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxklf2014%2Frust_study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxklf2014%2Frust_study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e0c73f89af5ff66d5ee5720f054ec027483e677
[INFO] checking xklf2014/rust_study against try#438eb4c1a1c3841523d7f672601e8adbe04cff28 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxklf2014%2Frust_study" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xklf2014/rust_study
[INFO] finished tweaking git repo https://github.com/xklf2014/rust_study
[INFO] tweaked toml for git repo https://github.com/xklf2014/rust_study written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xklf2014/rust_study on toolchain 438eb4c1a1c3841523d7f672601e8adbe04cff28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xklf2014/rust_study 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" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniz_oxide v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce4bc27b4033e60c7fd00fa1e059604b8ea76e82b3f35d8edf61d302e1418ba4
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[INFO] running `Command { std: "docker" "inspect" "ce4bc27b4033e60c7fd00fa1e059604b8ea76e82b3f35d8edf61d302e1418ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce4bc27b4033e60c7fd00fa1e059604b8ea76e82b3f35d8edf61d302e1418ba4", kill_on_drop: false }`
[INFO] [stdout] ce4bc27b4033e60c7fd00fa1e059604b8ea76e82b3f35d8edf61d302e1418ba4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+438eb4c1a1c3841523d7f672601e8adbe04cff28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 645e054f42fd08010bfacbde7ee571a68d9f62625f6c54af5b1dadf5480a1eae
[INFO] running `Command { std: "docker" "start" "-a" "645e054f42fd08010bfacbde7ee571a68d9f62625f6c54af5b1dadf5480a1eae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking ferris-says v0.1.2
[INFO] [stderr]     Checking MyFirstRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ferris_says::say`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ferris_says::say;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufWriter` and `stdout`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{stdout, BufWriter};
[INFO] [stdout]   |               ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/basic_test.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     /**
[INFO] [stdout] 58 | |     十进制(Decimal)    98_222
[INFO] [stdout] 59 | |     十六进制(Hex)    0xff
[INFO] [stdout] 60 | |     八进制(Octal)    0o77
[INFO] [stdout] 61 | |     二进制(Binary)    0b1111_0000
[INFO] [stdout] 62 | |     字节(Byte) (u8 only)    b'A'
[INFO] [stdout] 63 | |     */
[INFO] [stdout]    | |______^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Formatter`
[INFO] [stdout]  --> src/conversion.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::Formatter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/flow_of_control.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         'inner: loop {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/flow_of_control.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 | /     /** iter
[INFO] [stdout] 114 | |     This borrows each element of the collection through each iteration.
[INFO] [stdout] 115 | |     Thus leaving the collection untouched and available for reuse after the loop.
[INFO] [stdout] 116 | |     */
[INFO] [stdout]     | |______^
[INFO] [stdout] 117 | /     for name in names.iter() {//此处为元素借用，循环体用完会归还，可以继续使用
[INFO] [stdout] 118 | |         match name {
[INFO] [stdout] 119 | |             &"frank" => println!("There is a rustacean among us!"),
[INFO] [stdout] 120 | |             _ => println!("hello {}", name),
[INFO] [stdout] 121 | |         }
[INFO] [stdout] 122 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/flow_of_control.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | /     /** into_iter
[INFO] [stdout] 125 | |     This consumes the collection so that on each iteration the exact data is provided.
[INFO] [stdout] 126 | |     Once the collection has been consumed it is no longer available for reuse as it has been 'moved' within the loop.
[INFO] [stdout] 127 | |     */
[INFO] [stdout]     | |______^
[INFO] [stdout] 128 | /     for name in names.into_iter() {
[INFO] [stdout] 129 | |         match name {
[INFO] [stdout] 130 | |             "frank" => println!("There is a rustacean among us!"),
[INFO] [stdout] 131 | |             _ => println!("hello {}", name),
[INFO] [stdout] 132 | |         }
[INFO] [stdout] 133 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/flow_of_control.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 | /     /** iter_mut
[INFO] [stdout] 139 | |     This mutably borrows each element of the collection,
[INFO] [stdout] 140 | |     allowing for the collection to be modified in place
[INFO] [stdout] 141 | |     */
[INFO] [stdout]     | |______^
[INFO] [stdout] 142 | /     for word in words.iter_mut() {
[INFO] [stdout] 143 | |         *word = match word {
[INFO] [stdout] 144 | |             &mut "fine" => "Fine!Thank you,and you",
[INFO] [stdout] 145 | |             _ => "Hello world",
[INFO] [stdout] 146 | |         }
[INFO] [stdout] 147 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ferris_says::say`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ferris_says::say;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufWriter` and `stdout`
[INFO] [stdout]  --> src/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{stdout, BufWriter};
[INFO] [stdout]   |               ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/basic_test.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     /**
[INFO] [stdout] 58 | |     十进制(Decimal)    98_222
[INFO] [stdout] 59 | |     十六进制(Hex)    0xff
[INFO] [stdout] 60 | |     八进制(Octal)    0o77
[INFO] [stdout] 61 | |     二进制(Binary)    0b1111_0000
[INFO] [stdout] 62 | |     字节(Byte) (u8 only)    b'A'
[INFO] [stdout] 63 | |     */
[INFO] [stdout]    | |______^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Formatter`
[INFO] [stdout]  --> src/conversion.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::Formatter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/flow_of_control.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         'inner: loop {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/flow_of_control.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 | /     /** iter
[INFO] [stdout] 114 | |     This borrows each element of the collection through each iteration.
[INFO] [stdout] 115 | |     Thus leaving the collection untouched and available for reuse after the loop.
[INFO] [stdout] 116 | |     */
[INFO] [stdout]     | |______^
[INFO] [stdout] 117 | /     for name in names.iter() {//此处为元素借用，循环体用完会归还，可以继续使用
[INFO] [stdout] 118 | |         match name {
[INFO] [stdout] 119 | |             &"frank" => println!("There is a rustacean among us!"),
[INFO] [stdout] 120 | |             _ => println!("hello {}", name),
[INFO] [stdout] 121 | |         }
[INFO] [stdout] 122 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/flow_of_control.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | /     /** into_iter
[INFO] [stdout] 125 | |     This consumes the collection so that on each iteration the exact data is provided.
[INFO] [stdout] 126 | |     Once the collection has been consumed it is no longer available for reuse as it has been 'moved' within the loop.
[INFO] [stdout] 127 | |     */
[INFO] [stdout]     | |______^
[INFO] [stdout] 128 | /     for name in names.into_iter() {
[INFO] [stdout] 129 | |         match name {
[INFO] [stdout] 130 | |             "frank" => println!("There is a rustacean among us!"),
[INFO] [stdout] 131 | |             _ => println!("hello {}", name),
[INFO] [stdout] 132 | |         }
[INFO] [stdout] 133 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/flow_of_control.rs:138:5
[INFO] [stdout]     |
[INFO] [stdout] 138 | /     /** iter_mut
[INFO] [stdout] 139 | |     This mutably borrows each element of the collection,
[INFO] [stdout] 140 | |     allowing for the collection to be modified in place
[INFO] [stdout] 141 | |     */
[INFO] [stdout]     | |______^
[INFO] [stdout] 142 | /     for word in words.iter_mut() {
[INFO] [stdout] 143 | |         *word = match word {
[INFO] [stdout] 144 | |             &mut "fine" => "Fine!Thank you,and you",
[INFO] [stdout] 145 | |             _ => "Hello world",
[INFO] [stdout] 146 | |         }
[INFO] [stdout] 147 | |     }
[INFO] [stdout]     | |_____- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `/* */` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ys`
[INFO] [stdout]   --> src/slicesArrays.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let ys: [i32; 500] = [0; 500];
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ys`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `un_used_variable`
[INFO] [stdout]   --> src/variable_binding.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let un_used_variable = 3u32;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_un_used_variable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `noisy_unused_variable`
[INFO] [stdout]   --> src/variable_binding.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let noisy_unused_variable = 2u32;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_noisy_unused_variable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `long_lived_binding`
[INFO] [stdout]   --> src/variable_binding.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let long_lived_binding = 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_long_lived_binding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ys`
[INFO] [stdout]   --> src/slicesArrays.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let ys: [i32; 500] = [0; 500];
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ys`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `un_used_variable`
[INFO] [stdout]   --> src/variable_binding.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let un_used_variable = 3u32;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_un_used_variable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `noisy_unused_variable`
[INFO] [stdout]   --> src/variable_binding.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let noisy_unused_variable = 2u32;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_noisy_unused_variable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `long_lived_binding`
[INFO] [stdout]   --> src/variable_binding.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let long_lived_binding = 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_long_lived_binding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/flow_of_control.rs:342:8
[INFO] [stdout]     |
[INFO] [stdout] 342 |     if let Foo1::Bar = a {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/flow_of_control.rs:335:21
[INFO] [stdout]     |
[INFO] [stdout] 335 |     if let Foo::Qux(value @ 100) = c {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/functions.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 |     let a :() = some_fn();
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `turkey`
[INFO] [stdout]   --> src/bounds.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let turkey = Turkey;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named struct `Turkey`
[INFO] [stdout]    |
[INFO] [stdout] 53 -     let turkey = Turkey;
[INFO] [stdout] 53 +     let bounds::Turkey = Turkey;
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let _turkey = Turkey;
[INFO] [stdout]    |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]  --> src/tuples_test.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pTuple` is never used
[INFO] [stdout]  --> src/tuples_test.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn pTuple() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]   --> src/tuples_test.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basicTest` is never used
[INFO] [stdout]  --> src/basic_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn basicTest(){
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]  --> src/slicesArrays.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sclies` is never used
[INFO] [stdout]  --> src/slicesArrays.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn sclies() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/custom_types.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Person<'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Unit` is never constructed
[INFO] [stdout]   --> src/custom_types.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Unit;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/custom_types.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Pair(i32, f32);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/custom_types.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Point {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 22 |     x: f32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 23 |     y: f32,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `struct_test` is never used
[INFO] [stdout]   --> src/custom_types.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn struct_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]   --> src/custom_types.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub enum WebEvent {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]   --> src/custom_types.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn inspect(event: WebEvent) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enum_test` is never used
[INFO] [stdout]   --> src/custom_types.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn enum_test() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VeryVerboseEnumOfThingsToDoWithNumbers` is never used
[INFO] [stdout]   --> src/custom_types.rs:97:6
[INFO] [stdout]    |
[INFO] [stdout] 97 | enum VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Operations` is never used
[INFO] [stdout]    --> src/custom_types.rs:102:6
[INFO] [stdout]     |
[INFO] [stdout] 102 | type Operations = VeryVerboseEnumOfThingsToDoWithNumbers;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/custom_types.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     | ------------------------------------------- method in this implementation
[INFO] [stdout] 106 |     fn run(&self, x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_alias` is never used
[INFO] [stdout]    --> src/custom_types.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn test_alias() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]    --> src/custom_types.rs:121:6
[INFO] [stdout]     |
[INFO] [stdout] 121 | enum Status {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Work` is never used
[INFO] [stdout]    --> src/custom_types.rs:126:6
[INFO] [stdout]     |
[INFO] [stdout] 126 | enum Work {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]    --> src/custom_types.rs:147:6
[INFO] [stdout]     |
[INFO] [stdout] 147 | enum Number {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]    --> src/custom_types.rs:153:6
[INFO] [stdout]     |
[INFO] [stdout] 153 | enum Color {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c_like_test` is never used
[INFO] [stdout]    --> src/custom_types.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn c_like_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]    --> src/custom_types.rs:168:6
[INFO] [stdout]     |
[INFO] [stdout] 168 | enum List {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `prepend`, `len`, and `stringify` are never used
[INFO] [stdout]    --> src/custom_types.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | impl List {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 174 |     fn new() -> List {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     fn prepend(self, elem: u32) -> List {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn len(&self) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     fn stringify(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linked_list_test` is never used
[INFO] [stdout]    --> src/custom_types.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn linked_list_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LANGUAGE` is never used
[INFO] [stdout]    --> src/custom_types.rs:211:8
[INFO] [stdout]     |
[INFO] [stdout] 211 | static LANGUAGE: &str = "RUST";
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THRESHOLD` is never used
[INFO] [stdout]    --> src/custom_types.rs:212:7
[INFO] [stdout]     |
[INFO] [stdout] 212 | const THRESHOLD: i32 = 10;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_big` is never used
[INFO] [stdout]    --> src/custom_types.rs:214:4
[INFO] [stdout]     |
[INFO] [stdout] 214 | fn is_big(n: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constant_test` is never used
[INFO] [stdout]    --> src/custom_types.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 | pub fn constant_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_let` is never used
[INFO] [stdout]  --> src/variable_binding.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_let() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_mutability` is never used
[INFO] [stdout]   --> src/variable_binding.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn test_mutability() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_scope_and_shadowing` is never used
[INFO] [stdout]   --> src/variable_binding.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn test_scope_and_shadowing() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_declare_first` is never used
[INFO] [stdout]   --> src/variable_binding.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn test_declare_first() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_freezing` is never used
[INFO] [stdout]   --> src/variable_binding.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn test_freezing(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_casting` is never used
[INFO] [stdout]  --> src/types.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_casting() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_literals` is never used
[INFO] [stdout]   --> src/types.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn test_literals() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_inference` is never used
[INFO] [stdout]   --> src/types.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn test_inference() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]   --> src/types.rs:49:6
[INFO] [stdout]    |
[INFO] [stdout] 49 | type NanoSecond = u64;
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]   --> src/types.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 | type Inch = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `u64_t` is never used
[INFO] [stdout]   --> src/types.rs:53:6
[INFO] [stdout]    |
[INFO] [stdout] 53 | type u64_t = u64;
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_aliasing` is never used
[INFO] [stdout]   --> src/types.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn test_aliasing() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> src/conversion.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Number {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_from` is never used
[INFO] [stdout]   --> src/conversion.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn test_from() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_into` is never used
[INFO] [stdout]   --> src/conversion.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn test_into() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvenNumber` is never constructed
[INFO] [stdout]   --> src/conversion.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct EvenNumber(i32);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_try_from_and_into` is never used
[INFO] [stdout]   --> src/conversion.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn test_try_from_and_into() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cricle` is never constructed
[INFO] [stdout]   --> src/conversion.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | struct Cricle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_convering_to_string` is never used
[INFO] [stdout]   --> src/conversion.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn test_convering_to_string() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_parsing_string` is never used
[INFO] [stdout]   --> src/conversion.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn test_parsing_string(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_expressions` is never used
[INFO] [stdout]  --> src/expressions.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_expressions(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_if_else` is never used
[INFO] [stdout]  --> src/flow_of_control.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_if_else() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_loop` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn test_loop() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_nesting_and_lables` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn test_nesting_and_lables() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_returning_from_loops` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn test_returning_from_loops() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_while` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn test_while() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_for_and_range` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn test_for_and_range() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_iterators` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn test_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_match` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub fn test_match() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_tuples` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn test_tuples() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:181:6
[INFO] [stdout]     |
[INFO] [stdout] 181 | enum Color {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_enum` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:192:8
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub fn test_enum() {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_pointer_and_ref` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 | pub fn test_pointer_and_ref() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_structs` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:237:8
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub fn test_structs() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_guard` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 | pub fn test_guard() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `age` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn age() -> u32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_number` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:268:4
[INFO] [stdout]     |
[INFO] [stdout] 268 | fn some_number() -> Option<u32> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_binding` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 272 | pub fn test_binding() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/flow_of_control.rs:342:8
[INFO] [stdout]     |
[INFO] [stdout] 342 |     if let Foo1::Bar = a {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_if_let` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:289:8
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn test_if_let() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_while_let` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:347:8
[INFO] [stdout]     |
[INFO] [stdout] 347 | pub fn test_while_let() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_function` is never used
[INFO] [stdout]  --> src/functions.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_function() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_divisible_by` is never used
[INFO] [stdout]  --> src/functions.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn is_divisible_by(lhs: u32, rhs: u32) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]   --> src/functions.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fizzbuzz(n: u32) -> () {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz_to` is never used
[INFO] [stdout]   --> src/functions.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn fizzbuzz_to(n: u32) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/functions.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `origin` and `new` are never used
[INFO] [stdout]   --> src/functions.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Point {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] 38 |     fn origin() -> Point {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn new(x: f64, y: f64) -> Point {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/functions.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area`, `perimeter`, and `translate` are never used
[INFO] [stdout]   --> src/functions.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl Rectangle {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 53 |     fn area(&self) -> f64 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn perimeter(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn translate(&mut self, x: f64, y: f64) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/functions.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct Pair(Box<i32>, Box<i32>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destory` is never used
[INFO] [stdout]   --> src/functions.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl Pair {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 79 |     fn destory(self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_methods` is never used
[INFO] [stdout]   --> src/functions.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn test_methods() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/functions.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn function(i: i32) -> i32 { i + 1 }
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_closures` is never used
[INFO] [stdout]    --> src/functions.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn test_closures() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_capturing` is never used
[INFO] [stdout]    --> src/functions.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn test_capturing() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply` is never used
[INFO] [stdout]    --> src/functions.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn apply<F>(f: F) where
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_to_3` is never used
[INFO] [stdout]    --> src/functions.rs:172:4
[INFO] [stdout]     |
[INFO] [stdout] 172 | fn apply_to_3<F>(f: F) -> i32 where
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_as_input_parameters` is never used
[INFO] [stdout]    --> src/functions.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub fn test_as_input_parameters() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply1` is never used
[INFO] [stdout]    --> src/functions.rs:198:4
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn apply1<F>(f: F) where
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply2` is never used
[INFO] [stdout]    --> src/functions.rs:203:4
[INFO] [stdout]     |
[INFO] [stdout] 203 | fn apply2<F>(f: F) where
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_anonymity` is never used
[INFO] [stdout]    --> src/functions.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn test_anonymity() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_me` is never used
[INFO] [stdout]    --> src/functions.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn call_me<F: Fn()>(f: F) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function1` is never used
[INFO] [stdout]    --> src/functions.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn function1() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_input_function` is never used
[INFO] [stdout]    --> src/functions.rs:223:8
[INFO] [stdout]     |
[INFO] [stdout] 223 | pub fn test_input_function() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fn` is never used
[INFO] [stdout]    --> src/functions.rs:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn create_fn() -> impl Fn() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnmut` is never used
[INFO] [stdout]    --> src/functions.rs:235:4
[INFO] [stdout]     |
[INFO] [stdout] 235 | fn create_fnmut() -> impl FnMut() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnonce` is never used
[INFO] [stdout]    --> src/functions.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn create_fnonce() -> impl FnOnce() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_as_output_parameters` is never used
[INFO] [stdout]    --> src/functions.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub fn test_as_output_parameters() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_iterator` is never used
[INFO] [stdout]    --> src/functions.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub fn test_iterator() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_searching_through_iterators` is never used
[INFO] [stdout]    --> src/functions.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn test_searching_through_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_odd` is never used
[INFO] [stdout]    --> src/functions.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn is_odd(n: u32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hos` is never used
[INFO] [stdout]    --> src/functions.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 | pub fn test_hos() {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo` is never used
[INFO] [stdout]    --> src/functions.rs:323:4
[INFO] [stdout]     |
[INFO] [stdout] 323 | fn foo() -> ! {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_fn` is never used
[INFO] [stdout]    --> src/functions.rs:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | fn some_fn(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/flow_of_control.rs:335:21
[INFO] [stdout]     |
[INFO] [stdout] 335 |     if let Foo::Qux(value @ 100) = c {
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_driverging_functions` is never used
[INFO] [stdout]    --> src/functions.rs:331:8
[INFO] [stdout]     |
[INFO] [stdout] 331 | pub fn test_driverging_functions(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]   --> src/modules.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn function(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_visibility` is never used
[INFO] [stdout]   --> src/modules.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn test_visibility(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_struct_visibility` is never used
[INFO] [stdout]   --> src/modules.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn test_struct_visibility(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_use_declaration` is never used
[INFO] [stdout]    --> src/modules.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn test_use_declaration(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_super_and_self` is never used
[INFO] [stdout]    --> src/modules.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn test_super_and_self(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `private_function` is never used
[INFO] [stdout]  --> src/modules.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn private_function() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]  --> src/modules.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn function() {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `indirect_access` is never used
[INFO] [stdout]   --> src/modules.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn indirect_access() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_public_function_in_my_mod` is never used
[INFO] [stdout]   --> src/modules.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn call_public_function_in_my_mod(){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_crate` is never used
[INFO] [stdout]   --> src/modules.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub(crate) fn public_function_in_crate(){
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]   --> src/modules.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |         pub fn function(){
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_my_mod` is never used
[INFO] [stdout]   --> src/modules.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |         pub fn public_function_in_my_mod(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_nested` is never used
[INFO] [stdout]   --> src/modules.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |         pub(self) fn public_function_in_nested(){
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_super_mod` is never used
[INFO] [stdout]   --> src/modules.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |         pub(super) fn public_function_in_super_mod(){
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpenBox` is never constructed
[INFO] [stdout]   --> src/modules.rs:81:16
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub struct OpenBox<T>{
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/modules.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 90 |     impl<T> CloseBox<T>{
[INFO] [stdout]    |     ------------------- associated function in this implementation
[INFO] [stdout] 91 |         pub fn new(contents:T) -> CloseBox<T>{
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:109:16
[INFO] [stdout]     |
[INFO] [stdout] 109 |         pub fn function(){
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn function(){
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn function(){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `indirect_call` is never used
[INFO] [stdout]    --> src/modules.rs:147:12
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn indirect_call(){
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:142:16
[INFO] [stdout]     |
[INFO] [stdout] 142 |         pub fn function(){
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]  --> src/generics.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct A;
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]  --> src/generics.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct S(A);
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SGen` is never constructed
[INFO] [stdout]  --> src/generics.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct SGen<T>(T);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reg_fn` is never used
[INFO] [stdout]  --> src/generics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn reg_fn(_s : S){}
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_spec_t` is never used
[INFO] [stdout]  --> src/generics.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn gen_spec_t(_s : SGen<A>){}
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_spec_i32` is never used
[INFO] [stdout]  --> src/generics.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn gen_spec_i32(_s : SGen<i32>){}
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generic` is never used
[INFO] [stdout]  --> src/generics.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn generic<T>(_s : SGen<T>){}
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_generic` is never used
[INFO] [stdout]   --> src/generics.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn test_generic(){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]  --> src/implementation.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S;
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenericVal` is never constructed
[INFO] [stdout]  --> src/implementation.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct GenericVal<T>(T);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Val` is never constructed
[INFO] [stdout]   --> src/implementation.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Val {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenVal` is never constructed
[INFO] [stdout]   --> src/implementation.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct GenVal<T> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/implementation.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Val{
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] 20 |     fn value(&self) -> &f64{
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/implementation.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<T> GenVal<T>{
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 26 |     fn value(&self) -> &T{
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_implementation` is never used
[INFO] [stdout]   --> src/implementation.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn test_implementation(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Empty` is never constructed
[INFO] [stdout]  --> src/traits.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Empty;
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Null` is never constructed
[INFO] [stdout]  --> src/traits.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Null;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DoubleDrop` is never used
[INFO] [stdout]  --> src/traits.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait DoubleDrop<T> {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_traits` is never used
[INFO] [stdout]   --> src/traits.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn test_traits(){
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HasArea` is never used
[INFO] [stdout]  --> src/bounds.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait HasArea {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/bounds.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Rectangle { length: f64, height: f64 }
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_debug` is never used
[INFO] [stdout]   --> src/bounds.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn print_debug<T: Debug>(t: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `area` is never used
[INFO] [stdout]   --> src/bounds.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn area<T: HasArea>(t: &T) -> f64 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_bounds` is never used
[INFO] [stdout]   --> src/bounds.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn test_bounds() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cardinal` is never constructed
[INFO] [stdout]   --> src/bounds.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Cardinal;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlueJay` is never constructed
[INFO] [stdout]   --> src/bounds.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct BlueJay;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Turkey` is never constructed
[INFO] [stdout]   --> src/bounds.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct Turkey;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Red` is never used
[INFO] [stdout]   --> src/bounds.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | trait Red{}
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Blue` is never used
[INFO] [stdout]   --> src/bounds.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | trait Blue{}
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `red` is never used
[INFO] [stdout]   --> src/bounds.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn red<T : Red>(_: &T) -> &'static str {"red"}
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `blue` is never used
[INFO] [stdout]   --> src/bounds.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn blue<T : Blue>(_: &T) -> &'static str {"blue"}
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_empty_bounds` is never used
[INFO] [stdout]   --> src/bounds.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn test_empty_bounds(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spawn_function` is never used
[INFO] [stdout]  --> src/spawn.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn spawn_function(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pTuple` should have a snake case name
[INFO] [stdout]  --> src/tuples_test.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn pTuple() {
[INFO] [stdout]   |        ^^^^^^ help: convert the identifier to snake case: `p_tuple`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basicTest` should have a snake case name
[INFO] [stdout]  --> src/basic_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn basicTest(){
[INFO] [stdout]   |        ^^^^^^^^^ help: convert the identifier to snake case: `basic_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/expressions.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         2 * x;
[INFO] [stdout]    |         ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let _ = 2 * x;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/functions.rs:271:40
[INFO] [stdout]     |
[INFO] [stdout] 271 |     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 271 -     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout] 271 +     println!("2 in array2: {}", array2.iter().any(|&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 271 -     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout] 271 +     println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/functions.rs:286:47
[INFO] [stdout]     |
[INFO] [stdout] 286 |     println!("Find 2 in array2: {:?}", array2.into_iter().find(|&&x| x == 2));
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 286 -     println!("Find 2 in array2: {:?}", array2.into_iter().find(|&&x| x == 2));
[INFO] [stdout] 286 +     println!("Find 2 in array2: {:?}", array2.iter().find(|&&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 286 -     println!("Find 2 in array2: {:?}", array2.into_iter().find(|&&x| x == 2));
[INFO] [stdout] 286 +     println!("Find 2 in array2: {:?}", IntoIterator::into_iter(array2).find(|&&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/functions.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 |     let a :() = some_fn();
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `turkey`
[INFO] [stdout]   --> src/bounds.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let turkey = Turkey;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to pattern match on the similarly named struct `Turkey`
[INFO] [stdout]    |
[INFO] [stdout] 53 -     let turkey = Turkey;
[INFO] [stdout] 53 +     let bounds::Turkey = Turkey;
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let _turkey = Turkey;
[INFO] [stdout]    |         +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]  --> src/tuples_test.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Matrix(f32, f32, f32, f32);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pTuple` is never used
[INFO] [stdout]  --> src/tuples_test.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn pTuple() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse` is never used
[INFO] [stdout]   --> src/tuples_test.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn reverse(pair: (i32, bool)) -> (bool, i32) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basicTest` is never used
[INFO] [stdout]  --> src/basic_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn basicTest(){
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyze_slice` is never used
[INFO] [stdout]  --> src/slicesArrays.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn analyze_slice(slice: &[i32]) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sclies` is never used
[INFO] [stdout]  --> src/slicesArrays.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn sclies() {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/custom_types.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Person<'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Unit` is never constructed
[INFO] [stdout]   --> src/custom_types.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct Unit;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/custom_types.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Pair(i32, f32);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/custom_types.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct Point {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 22 |     x: f32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 23 |     y: f32,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `struct_test` is never used
[INFO] [stdout]   --> src/custom_types.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn struct_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `WebEvent` is never used
[INFO] [stdout]   --> src/custom_types.rs:62:10
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub enum WebEvent {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inspect` is never used
[INFO] [stdout]   --> src/custom_types.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn inspect(event: WebEvent) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `enum_test` is never used
[INFO] [stdout]   --> src/custom_types.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn enum_test() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VeryVerboseEnumOfThingsToDoWithNumbers` is never used
[INFO] [stdout]   --> src/custom_types.rs:97:6
[INFO] [stdout]    |
[INFO] [stdout] 97 | enum VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Operations` is never used
[INFO] [stdout]    --> src/custom_types.rs:102:6
[INFO] [stdout]     |
[INFO] [stdout] 102 | type Operations = VeryVerboseEnumOfThingsToDoWithNumbers;
[INFO] [stdout]     |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/custom_types.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl VeryVerboseEnumOfThingsToDoWithNumbers {
[INFO] [stdout]     | ------------------------------------------- method in this implementation
[INFO] [stdout] 106 |     fn run(&self, x: i32, y: i32) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_alias` is never used
[INFO] [stdout]    --> src/custom_types.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn test_alias() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Status` is never used
[INFO] [stdout]    --> src/custom_types.rs:121:6
[INFO] [stdout]     |
[INFO] [stdout] 121 | enum Status {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Work` is never used
[INFO] [stdout]    --> src/custom_types.rs:126:6
[INFO] [stdout]     |
[INFO] [stdout] 126 | enum Work {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]    --> src/custom_types.rs:147:6
[INFO] [stdout]     |
[INFO] [stdout] 147 | enum Number {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]    --> src/custom_types.rs:153:6
[INFO] [stdout]     |
[INFO] [stdout] 153 | enum Color {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `c_like_test` is never used
[INFO] [stdout]    --> src/custom_types.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn c_like_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `List` is never used
[INFO] [stdout]    --> src/custom_types.rs:168:6
[INFO] [stdout]     |
[INFO] [stdout] 168 | enum List {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `prepend`, `len`, and `stringify` are never used
[INFO] [stdout]    --> src/custom_types.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | impl List {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 174 |     fn new() -> List {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     fn prepend(self, elem: u32) -> List {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn len(&self) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     fn stringify(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linked_list_test` is never used
[INFO] [stdout]    --> src/custom_types.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 201 | pub fn linked_list_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `LANGUAGE` is never used
[INFO] [stdout]    --> src/custom_types.rs:211:8
[INFO] [stdout]     |
[INFO] [stdout] 211 | static LANGUAGE: &str = "RUST";
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `THRESHOLD` is never used
[INFO] [stdout]    --> src/custom_types.rs:212:7
[INFO] [stdout]     |
[INFO] [stdout] 212 | const THRESHOLD: i32 = 10;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_big` is never used
[INFO] [stdout]    --> src/custom_types.rs:214:4
[INFO] [stdout]     |
[INFO] [stdout] 214 | fn is_big(n: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constant_test` is never used
[INFO] [stdout]    --> src/custom_types.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 | pub fn constant_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_let` is never used
[INFO] [stdout]  --> src/variable_binding.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_let() {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_mutability` is never used
[INFO] [stdout]   --> src/variable_binding.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn test_mutability() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_scope_and_shadowing` is never used
[INFO] [stdout]   --> src/variable_binding.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn test_scope_and_shadowing() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_declare_first` is never used
[INFO] [stdout]   --> src/variable_binding.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn test_declare_first() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_freezing` is never used
[INFO] [stdout]   --> src/variable_binding.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn test_freezing(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_casting` is never used
[INFO] [stdout]  --> src/types.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_casting() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_literals` is never used
[INFO] [stdout]   --> src/types.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn test_literals() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_inference` is never used
[INFO] [stdout]   --> src/types.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn test_inference() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `NanoSecond` is never used
[INFO] [stdout]   --> src/types.rs:49:6
[INFO] [stdout]    |
[INFO] [stdout] 49 | type NanoSecond = u64;
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Inch` is never used
[INFO] [stdout]   --> src/types.rs:50:6
[INFO] [stdout]    |
[INFO] [stdout] 50 | type Inch = u64;
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `u64_t` is never used
[INFO] [stdout]   --> src/types.rs:53:6
[INFO] [stdout]    |
[INFO] [stdout] 53 | type u64_t = u64;
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_aliasing` is never used
[INFO] [stdout]   --> src/types.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn test_aliasing() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> src/conversion.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Number {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_from` is never used
[INFO] [stdout]   --> src/conversion.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn test_from() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_into` is never used
[INFO] [stdout]   --> src/conversion.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn test_into() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EvenNumber` is never constructed
[INFO] [stdout]   --> src/conversion.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct EvenNumber(i32);
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_try_from_and_into` is never used
[INFO] [stdout]   --> src/conversion.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn test_try_from_and_into() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cricle` is never constructed
[INFO] [stdout]   --> src/conversion.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | struct Cricle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_convering_to_string` is never used
[INFO] [stdout]   --> src/conversion.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn test_convering_to_string() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_parsing_string` is never used
[INFO] [stdout]   --> src/conversion.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn test_parsing_string(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_expressions` is never used
[INFO] [stdout]  --> src/expressions.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_expressions(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_if_else` is never used
[INFO] [stdout]  --> src/flow_of_control.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_if_else() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_loop` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn test_loop() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_nesting_and_lables` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn test_nesting_and_lables() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_returning_from_loops` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn test_returning_from_loops() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_while` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn test_while() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_for_and_range` is never used
[INFO] [stdout]   --> src/flow_of_control.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn test_for_and_range() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_iterators` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn test_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_match` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub fn test_match() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_tuples` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 | pub fn test_tuples() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:181:6
[INFO] [stdout]     |
[INFO] [stdout] 181 | enum Color {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_enum` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:192:8
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub fn test_enum() {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_pointer_and_ref` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 | pub fn test_pointer_and_ref() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_structs` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:237:8
[INFO] [stdout]     |
[INFO] [stdout] 237 | pub fn test_structs() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_guard` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:252:8
[INFO] [stdout]     |
[INFO] [stdout] 252 | pub fn test_guard() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `age` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:264:4
[INFO] [stdout]     |
[INFO] [stdout] 264 | fn age() -> u32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_number` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:268:4
[INFO] [stdout]     |
[INFO] [stdout] 268 | fn some_number() -> Option<u32> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_binding` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 272 | pub fn test_binding() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_if_let` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:289:8
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn test_if_let() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_while_let` is never used
[INFO] [stdout]    --> src/flow_of_control.rs:347:8
[INFO] [stdout]     |
[INFO] [stdout] 347 | pub fn test_while_let() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_function` is never used
[INFO] [stdout]  --> src/functions.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_function() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_divisible_by` is never used
[INFO] [stdout]  --> src/functions.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn is_divisible_by(lhs: u32, rhs: u32) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz` is never used
[INFO] [stdout]   --> src/functions.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn fizzbuzz(n: u32) -> () {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizzbuzz_to` is never used
[INFO] [stdout]   --> src/functions.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn fizzbuzz_to(n: u32) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/functions.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `origin` and `new` are never used
[INFO] [stdout]   --> src/functions.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl Point {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] 38 |     fn origin() -> Point {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn new(x: f64, y: f64) -> Point {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/functions.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area`, `perimeter`, and `translate` are never used
[INFO] [stdout]   --> src/functions.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl Rectangle {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 53 |     fn area(&self) -> f64 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn perimeter(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn translate(&mut self, x: f64, y: f64) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/functions.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct Pair(Box<i32>, Box<i32>);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `destory` is never used
[INFO] [stdout]   --> src/functions.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | impl Pair {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 79 |     fn destory(self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_methods` is never used
[INFO] [stdout]   --> src/functions.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn test_methods() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/functions.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn function(i: i32) -> i32 { i + 1 }
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_closures` is never used
[INFO] [stdout]    --> src/functions.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn test_closures() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_capturing` is never used
[INFO] [stdout]    --> src/functions.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn test_capturing() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply` is never used
[INFO] [stdout]    --> src/functions.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn apply<F>(f: F) where
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_to_3` is never used
[INFO] [stdout]    --> src/functions.rs:172:4
[INFO] [stdout]     |
[INFO] [stdout] 172 | fn apply_to_3<F>(f: F) -> i32 where
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_as_input_parameters` is never used
[INFO] [stdout]    --> src/functions.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout] 179 | pub fn test_as_input_parameters() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply1` is never used
[INFO] [stdout]    --> src/functions.rs:198:4
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn apply1<F>(f: F) where
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply2` is never used
[INFO] [stdout]    --> src/functions.rs:203:4
[INFO] [stdout]     |
[INFO] [stdout] 203 | fn apply2<F>(f: F) where
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_anonymity` is never used
[INFO] [stdout]    --> src/functions.rs:208:8
[INFO] [stdout]     |
[INFO] [stdout] 208 | pub fn test_anonymity() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_me` is never used
[INFO] [stdout]    --> src/functions.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn call_me<F: Fn()>(f: F) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function1` is never used
[INFO] [stdout]    --> src/functions.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn function1() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_input_function` is never used
[INFO] [stdout]    --> src/functions.rs:223:8
[INFO] [stdout]     |
[INFO] [stdout] 223 | pub fn test_input_function() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fn` is never used
[INFO] [stdout]    --> src/functions.rs:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn create_fn() -> impl Fn() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnmut` is never used
[INFO] [stdout]    --> src/functions.rs:235:4
[INFO] [stdout]     |
[INFO] [stdout] 235 | fn create_fnmut() -> impl FnMut() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_fnonce` is never used
[INFO] [stdout]    --> src/functions.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn create_fnonce() -> impl FnOnce() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_as_output_parameters` is never used
[INFO] [stdout]    --> src/functions.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub fn test_as_output_parameters() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_iterator` is never used
[INFO] [stdout]    --> src/functions.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 | pub fn test_iterator() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_searching_through_iterators` is never used
[INFO] [stdout]    --> src/functions.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn test_searching_through_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_odd` is never used
[INFO] [stdout]    --> src/functions.rs:295:4
[INFO] [stdout]     |
[INFO] [stdout] 295 | fn is_odd(n: u32) -> bool {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hos` is never used
[INFO] [stdout]    --> src/functions.rs:300:8
[INFO] [stdout]     |
[INFO] [stdout] 300 | pub fn test_hos() {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `foo` is never used
[INFO] [stdout]    --> src/functions.rs:323:4
[INFO] [stdout]     |
[INFO] [stdout] 323 | fn foo() -> ! {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_fn` is never used
[INFO] [stdout]    --> src/functions.rs:327:4
[INFO] [stdout]     |
[INFO] [stdout] 327 | fn some_fn(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_driverging_functions` is never used
[INFO] [stdout]    --> src/functions.rs:331:8
[INFO] [stdout]     |
[INFO] [stdout] 331 | pub fn test_driverging_functions(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]   --> src/modules.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn function(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_visibility` is never used
[INFO] [stdout]   --> src/modules.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn test_visibility(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_struct_visibility` is never used
[INFO] [stdout]   --> src/modules.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub fn test_struct_visibility(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_use_declaration` is never used
[INFO] [stdout]    --> src/modules.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn test_use_declaration(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_super_and_self` is never used
[INFO] [stdout]    --> src/modules.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn test_super_and_self(){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `private_function` is never used
[INFO] [stdout]  --> src/modules.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fn private_function() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]  --> src/modules.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn function() {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `indirect_access` is never used
[INFO] [stdout]   --> src/modules.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn indirect_access() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_public_function_in_my_mod` is never used
[INFO] [stdout]   --> src/modules.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn call_public_function_in_my_mod(){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_crate` is never used
[INFO] [stdout]   --> src/modules.rs:46:19
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub(crate) fn public_function_in_crate(){
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]   --> src/modules.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |         pub fn function(){
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_my_mod` is never used
[INFO] [stdout]   --> src/modules.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |         pub fn public_function_in_my_mod(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_nested` is never used
[INFO] [stdout]   --> src/modules.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |         pub(self) fn public_function_in_nested(){
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `public_function_in_super_mod` is never used
[INFO] [stdout]   --> src/modules.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |         pub(super) fn public_function_in_super_mod(){
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpenBox` is never constructed
[INFO] [stdout]   --> src/modules.rs:81:16
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub struct OpenBox<T>{
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/modules.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 90 |     impl<T> CloseBox<T>{
[INFO] [stdout]    |     ------------------- associated function in this implementation
[INFO] [stdout] 91 |         pub fn new(contents:T) -> CloseBox<T>{
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:109:16
[INFO] [stdout]     |
[INFO] [stdout] 109 |         pub fn function(){
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn function(){
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn function(){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `indirect_call` is never used
[INFO] [stdout]    --> src/modules.rs:147:12
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn indirect_call(){
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function` is never used
[INFO] [stdout]    --> src/modules.rs:142:16
[INFO] [stdout]     |
[INFO] [stdout] 142 |         pub fn function(){
[INFO] [stdout]     |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]  --> src/generics.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct A;
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]  --> src/generics.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct S(A);
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SGen` is never constructed
[INFO] [stdout]  --> src/generics.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct SGen<T>(T);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reg_fn` is never used
[INFO] [stdout]  --> src/generics.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn reg_fn(_s : S){}
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_spec_t` is never used
[INFO] [stdout]  --> src/generics.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn gen_spec_t(_s : SGen<A>){}
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gen_spec_i32` is never used
[INFO] [stdout]  --> src/generics.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn gen_spec_i32(_s : SGen<i32>){}
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generic` is never used
[INFO] [stdout]  --> src/generics.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn generic<T>(_s : SGen<T>){}
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_generic` is never used
[INFO] [stdout]   --> src/generics.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn test_generic(){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]  --> src/implementation.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S;
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenericVal` is never constructed
[INFO] [stdout]  --> src/implementation.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct GenericVal<T>(T);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Val` is never constructed
[INFO] [stdout]   --> src/implementation.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Val {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GenVal` is never constructed
[INFO] [stdout]   --> src/implementation.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct GenVal<T> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/implementation.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Val{
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] 20 |     fn value(&self) -> &f64{
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `value` is never used
[INFO] [stdout]   --> src/implementation.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl<T> GenVal<T>{
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 26 |     fn value(&self) -> &T{
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_implementation` is never used
[INFO] [stdout]   --> src/implementation.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn test_implementation(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Empty` is never constructed
[INFO] [stdout]  --> src/traits.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Empty;
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Null` is never constructed
[INFO] [stdout]  --> src/traits.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Null;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DoubleDrop` is never used
[INFO] [stdout]  --> src/traits.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait DoubleDrop<T> {
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_traits` is never used
[INFO] [stdout]   --> src/traits.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn test_traits(){
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HasArea` is never used
[INFO] [stdout]  --> src/bounds.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait HasArea {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/bounds.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Rectangle { length: f64, height: f64 }
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_debug` is never used
[INFO] [stdout]   --> src/bounds.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn print_debug<T: Debug>(t: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `area` is never used
[INFO] [stdout]   --> src/bounds.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn area<T: HasArea>(t: &T) -> f64 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_bounds` is never used
[INFO] [stdout]   --> src/bounds.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn test_bounds() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cardinal` is never constructed
[INFO] [stdout]   --> src/bounds.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Cardinal;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlueJay` is never constructed
[INFO] [stdout]   --> src/bounds.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct BlueJay;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Turkey` is never constructed
[INFO] [stdout]   --> src/bounds.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct Turkey;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Red` is never used
[INFO] [stdout]   --> src/bounds.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 42 | trait Red{}
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Blue` is never used
[INFO] [stdout]   --> src/bounds.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 | trait Blue{}
[INFO] [stdout]    |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `red` is never used
[INFO] [stdout]   --> src/bounds.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn red<T : Red>(_: &T) -> &'static str {"red"}
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `blue` is never used
[INFO] [stdout]   --> src/bounds.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn blue<T : Blue>(_: &T) -> &'static str {"blue"}
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_empty_bounds` is never used
[INFO] [stdout]   --> src/bounds.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn test_empty_bounds(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `spawn_function` is never used
[INFO] [stdout]  --> src/spawn.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn spawn_function(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pTuple` should have a snake case name
[INFO] [stdout]  --> src/tuples_test.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn pTuple() {
[INFO] [stdout]   |        ^^^^^^ help: convert the identifier to snake case: `p_tuple`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basicTest` should have a snake case name
[INFO] [stdout]  --> src/basic_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn basicTest(){
[INFO] [stdout]   |        ^^^^^^^^^ help: convert the identifier to snake case: `basic_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]   --> src/expressions.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         2 * x;
[INFO] [stdout]    |         ^^^^^ the arithmetic operation produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let _ = 2 * x;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/functions.rs:271:40
[INFO] [stdout]     |
[INFO] [stdout] 271 |     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 271 -     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout] 271 +     println!("2 in array2: {}", array2.iter().any(|&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 271 -     println!("2 in array2: {}", array2.into_iter().any(|&x| x == 2));
[INFO] [stdout] 271 +     println!("2 in array2: {}", IntoIterator::into_iter(array2).any(|&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]    --> src/functions.rs:286:47
[INFO] [stdout]     |
[INFO] [stdout] 286 |     println!("Find 2 in array2: {:?}", array2.into_iter().find(|&&x| x == 2));
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 286 -     println!("Find 2 in array2: {:?}", array2.into_iter().find(|&&x| x == 2));
[INFO] [stdout] 286 +     println!("Find 2 in array2: {:?}", array2.iter().find(|&&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 286 -     println!("Find 2 in array2: {:?}", array2.into_iter().find(|&&x| x == 2));
[INFO] [stdout] 286 +     println!("Find 2 in array2: {:?}", IntoIterator::into_iter(array2).find(|&&x| x == 2));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.79s
[INFO] running `Command { std: "docker" "inspect" "645e054f42fd08010bfacbde7ee571a68d9f62625f6c54af5b1dadf5480a1eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "645e054f42fd08010bfacbde7ee571a68d9f62625f6c54af5b1dadf5480a1eae", kill_on_drop: false }`
[INFO] [stdout] 645e054f42fd08010bfacbde7ee571a68d9f62625f6c54af5b1dadf5480a1eae
