[INFO] cloning repository https://github.com/pdmd1912003/rust-practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pdmd1912003/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdmd1912003%2Frust-practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdmd1912003%2Frust-practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f483b3bbfd91143311e6d3f19ac41dca467e7d1e
[INFO] testing pdmd1912003/rust-practice against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdmd1912003%2Frust-practice" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/pdmd1912003/rust-practice
[INFO] finished tweaking git repo https://github.com/pdmd1912003/rust-practice
[INFO] tweaked toml for git repo https://github.com/pdmd1912003/rust-practice written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pdmd1912003/rust-practice on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pdmd1912003/rust-practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8_slice v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3676e4920b20818cd57b41c43f0ca04f16f349c10848a2ae53721c7ffe8384cc
[INFO] running `Command { std: "docker" "start" "-a" "3676e4920b20818cd57b41c43f0ca04f16f349c10848a2ae53721c7ffe8384cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3676e4920b20818cd57b41c43f0ca04f16f349c10848a2ae53721c7ffe8384cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3676e4920b20818cd57b41c43f0ca04f16f349c10848a2ae53721c7ffe8384cc", kill_on_drop: false }`
[INFO] [stdout] 3676e4920b20818cd57b41c43f0ca04f16f349c10848a2ae53721c7ffe8384cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf3367936e14cf8abd8278a6a972ed9df789368caf207f0aef23eb7a1037161e
[INFO] running `Command { std: "docker" "start" "-a" "cf3367936e14cf8abd8278a6a972ed9df789368caf207f0aef23eb7a1037161e", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8_slice v1.0.0
[INFO] [stderr]    Compiling rust-practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/basic_types/functions.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     never_return();
[INFO] [stdout]    |     -------------- any code following this expression is unreachable
[INFO] [stdout] 27 |     println!("Failed!");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> src/variables/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let y = 10;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]   --> src/variables/mod.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |      let mut x: i32 = 1;
[INFO] [stdout]    |              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/variables/mod.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     x += 3;
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/variables/mod.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let y = 4;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/variables/mod.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let y = "I can also be bound to text!"; 
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/flow_control/mod.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     for name in &names {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/flow_control/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for n in numbers {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/flow_control/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     for i in 0..=100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let v = (2, 3);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let v ={
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut s = String::from("hello, ");
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn borrow_object(s: &String) {}
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]    --> src/ownership_borrowing/borrowing.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let r1 = &mut s;
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/compound_types/tuple.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let t: (u8, u16, i64, &str, String) = (1u8, 2u16, 3i64, "hello", String::from(", world"));
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name0`
[INFO] [stdout]   --> src/compound_types/array.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let name0 = names.get(0).unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_name0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]  --> src/compound_types/slice.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s1: &[i32] = &arr[0..2]; // -> &[i32] is a slice type
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]  --> src/compound_types/slice.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s2: &str = "hello, world";
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/compound_types/string.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let s: &str = "hello, world"; // -> 
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/compound_types/structs.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn do_something_with_unit(u: Unit) {   }
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u2`
[INFO] [stdout]   --> src/compound_types/structs.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let u2 = set_email(u1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_u2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg1`
[INFO] [stdout]   --> src/compound_types/enums.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let msg1 = Message::Move{x : 1, y : 2}; // Instantiating with x = 1, y = 2 
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_msg1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg2`
[INFO] [stdout]   --> src/compound_types/enums.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let msg2 = Message::Write("hello, world".to_string()); // Instantiating with "hello, world!"
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_msg2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `none`
[INFO] [stdout]   --> src/compound_types/enums.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let none = plus_one(None);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_none`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/variables/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/variables/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/variables/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/variables/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `define_x` is never used
[INFO] [stdout]   --> src/variables/mod.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn define_x() -> &'static str {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/variables/mod.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn run5(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/variables/mod.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn run6(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/variables/mod.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run7(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/variables/mod.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn run8 () {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/flow_control/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run1() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/numbers.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run1() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `type_of` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn type_of<T>(_: &T) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub  fn  run2() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run4(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn run7() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn run8(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/char_bool_unit.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_char` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn print_char(c: char) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `implicitly_ret_unit` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn implicitly_ret_unit() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `explicitly_ret_unit` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn explicitly_ret_unit() -> () {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/statements_expression.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_value` is never used
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn return_value(x: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/basic_types/functions.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x: i32, y: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/functions.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn run1() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn print(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `never_return` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn never_return() -> ! {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `never_return_2` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn never_return_2() -> ! {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_option` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn get_option(tp: u8) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `never_return_fn` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn never_return_fn() -> ! {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/ownership_borrowing/ownership.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]  --> src/ownership_borrowing/ownership.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run2() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn take_ownership(s: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn give_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_str` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn print_str(s: String)  {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn run7() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn run8(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run9` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn run9(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run10` is never used
[INFO] [stdout]    --> src/ownership_borrowing/ownership.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn run10() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/ownership_borrowing/borrowing.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrow_object` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn borrow_object(s: &String) {}
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_str` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn push_str(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub  fn run5() {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_addr` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn get_addr(r: &char) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub  fn run7() {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run9` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn run9() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run10` is never used
[INFO] [stdout]    --> src/ownership_borrowing/borrowing.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn run10() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run11` is never used
[INFO] [stdout]    --> src/ownership_borrowing/borrowing.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn run11() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/tuple.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn run4(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_multiply` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn sum_multiply(nums: (i32, i32)) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/array.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/array.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/slice.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/slice.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/slice.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/slice.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run4(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/string.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]  --> src/compound_types/string.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn run2() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greetings` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn greetings(s: Box<str>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greetings2` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn greetings2(s: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run7() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greetings3` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn greetings3(s: String) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn run8() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run9` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn run9() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run10` is never used
[INFO] [stdout]    --> src/compound_types/string.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn run10(){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/compound_types/structs.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Person {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Unit` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Unit;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SomeTrait` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait SomeTrait {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_something_with_unit` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn do_something_with_unit(u: Unit) {   }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Color(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Point(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_color` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn check_color(p: Color) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |  struct User {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_email` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn set_email(u: User) -> User {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub  fn run6() {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]    --> src/compound_types/structs.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn run7() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]  --> src/compound_types/enums.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Number {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number1` is never used
[INFO] [stdout]  --> src/compound_types/enums.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum Number1 {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run1() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum Message {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show_message` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn show_message(msg: Message) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plus_one` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]  --> src/partten_match/matches.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Message {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn run1() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show_message` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn show_message(msg: Message) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:64:6
[INFO] [stdout]    |
[INFO] [stdout] 64 | enum Foo {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "cf3367936e14cf8abd8278a6a972ed9df789368caf207f0aef23eb7a1037161e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3367936e14cf8abd8278a6a972ed9df789368caf207f0aef23eb7a1037161e", kill_on_drop: false }`
[INFO] [stdout] cf3367936e14cf8abd8278a6a972ed9df789368caf207f0aef23eb7a1037161e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db0dfa106c6bc539411f68f2fd852da6e7b878f895a05d8e08fff279485fb392
[INFO] running `Command { std: "docker" "start" "-a" "db0dfa106c6bc539411f68f2fd852da6e7b878f895a05d8e08fff279485fb392", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/basic_types/functions.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     never_return();
[INFO] [stdout]    |     -------------- any code following this expression is unreachable
[INFO] [stdout] 27 |     println!("Failed!");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> src/variables/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let y = 10;
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `x` is assigned to, but never used
[INFO] [stdout]   --> src/variables/mod.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |      let mut x: i32 = 1;
[INFO] [stdout]    |              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_x` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/variables/mod.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     x += 3;
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/variables/mod.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let y = 4;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/variables/mod.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let y = "I can also be bound to text!"; 
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/flow_control/mod.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     for name in &names {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/flow_control/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for n in numbers {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/flow_control/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     for i in 0..=100 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let v = (2, 3);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let v ={
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut s = String::from("hello, ");
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:29:18
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn borrow_object(s: &String) {}
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]    --> src/ownership_borrowing/borrowing.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let r1 = &mut s;
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]  --> src/compound_types/tuple.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let t: (u8, u16, i64, &str, String) = (1u8, 2u16, 3i64, "hello", String::from(", world"));
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name0`
[INFO] [stdout]   --> src/compound_types/array.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let name0 = names.get(0).unwrap();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_name0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]  --> src/compound_types/slice.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let s1: &[i32] = &arr[0..2]; // -> &[i32] is a slice type
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]  --> src/compound_types/slice.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s2: &str = "hello, world";
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/compound_types/string.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let s: &str = "hello, world"; // -> 
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/compound_types/structs.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn do_something_with_unit(u: Unit) {   }
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u2`
[INFO] [stdout]   --> src/compound_types/structs.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let u2 = set_email(u1);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_u2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg1`
[INFO] [stdout]   --> src/compound_types/enums.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let msg1 = Message::Move{x : 1, y : 2}; // Instantiating with x = 1, y = 2 
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_msg1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg2`
[INFO] [stdout]   --> src/compound_types/enums.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let msg2 = Message::Write("hello, world".to_string()); // Instantiating with "hello, world!"
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_msg2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `none`
[INFO] [stdout]   --> src/compound_types/enums.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let none = plus_one(None);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_none`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/variables/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/variables/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/variables/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/variables/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `define_x` is never used
[INFO] [stdout]   --> src/variables/mod.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn define_x() -> &'static str {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/variables/mod.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn run5(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/variables/mod.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn run6(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/variables/mod.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run7(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/variables/mod.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn run8 () {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/flow_control/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run1() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/flow_control/mod.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/numbers.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run1() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `type_of` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn type_of<T>(_: &T) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub  fn  run2() {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run4(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn run7() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/basic_types/numbers.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn run8(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/char_bool_unit.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_char` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn print_char(c: char) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `implicitly_ret_unit` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn implicitly_ret_unit() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `explicitly_ret_unit` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn explicitly_ret_unit() -> () {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/basic_types/char_bool_unit.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/statements_expression.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_value` is never used
[INFO] [stdout]   --> src/basic_types/statements_expression.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn return_value(x: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum` is never used
[INFO] [stdout]  --> src/basic_types/functions.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn sum(x: i32, y: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/basic_types/functions.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn run1() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn print(){
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `never_return` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn never_return() -> ! {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `never_return_2` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn never_return_2() -> ! {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_option` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn get_option(tp: u8) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `never_return_fn` is never used
[INFO] [stdout]   --> src/basic_types/functions.rs:57:4
[INFO] [stdout]    |
[INFO] [stdout] 57 | fn never_return_fn() -> ! {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/ownership_borrowing/ownership.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]  --> src/ownership_borrowing/ownership.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run2() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn take_ownership(s: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn give_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_str` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn print_str(s: String)  {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn run7() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn run8(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run9` is never used
[INFO] [stdout]   --> src/ownership_borrowing/ownership.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn run9(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run10` is never used
[INFO] [stdout]    --> src/ownership_borrowing/ownership.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn run10() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/ownership_borrowing/borrowing.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrow_object` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn borrow_object(s: &String) {}
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_str` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn push_str(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub  fn run5() {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_addr` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn get_addr(r: &char) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub  fn run7() {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run9` is never used
[INFO] [stdout]   --> src/ownership_borrowing/borrowing.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn run9() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run10` is never used
[INFO] [stdout]    --> src/ownership_borrowing/borrowing.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn run10() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run11` is never used
[INFO] [stdout]    --> src/ownership_borrowing/borrowing.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn run11() {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/tuple.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn run4(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_multiply` is never used
[INFO] [stdout]   --> src/compound_types/tuple.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn sum_multiply(nums: (i32, i32)) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/array.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/array.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/array.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/slice.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/slice.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn run2(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/slice.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn run3(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/slice.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run4(){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/string.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]  --> src/compound_types/string.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn run2() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greetings` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn greetings(s: Box<str>) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greetings2` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn greetings2(s: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn run6() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run7() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greetings3` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn greetings3(s: String) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run8` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub fn run8() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run9` is never used
[INFO] [stdout]   --> src/compound_types/string.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn run9() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run10` is never used
[INFO] [stdout]    --> src/compound_types/string.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn run10(){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/compound_types/structs.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Person {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]  --> src/compound_types/structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn run1(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Unit` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct Unit;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SomeTrait` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait SomeTrait {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_something_with_unit` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn do_something_with_unit(u: Unit) {   }
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct Color(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct Point(i32, i32, i32);
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_color` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn check_color(p: Color) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |  struct User {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_email` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn set_email(u: User) -> User {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/compound_types/structs.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run6` is never used
[INFO] [stdout]   --> src/compound_types/structs.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub  fn run6() {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run7` is never used
[INFO] [stdout]    --> src/compound_types/structs.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn run7() {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number` is never used
[INFO] [stdout]  --> src/compound_types/enums.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Number {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Number1` is never used
[INFO] [stdout]  --> src/compound_types/enums.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | enum Number1 {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn run1() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum Message {
[INFO] [stdout]    |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show_message` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn show_message(msg: Message) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run5` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn run5() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `plus_one` is never used
[INFO] [stdout]   --> src/compound_types/enums.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Message` is never used
[INFO] [stdout]  --> src/partten_match/matches.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Message {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run1` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn run1() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show_message` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn show_message(msg: Message) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run2` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn run2() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Foo` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:64:6
[INFO] [stdout]    |
[INFO] [stdout] 64 | enum Foo {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run4` is never used
[INFO] [stdout]   --> src/partten_match/matches.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn run4() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "db0dfa106c6bc539411f68f2fd852da6e7b878f895a05d8e08fff279485fb392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db0dfa106c6bc539411f68f2fd852da6e7b878f895a05d8e08fff279485fb392", kill_on_drop: false }`
[INFO] [stdout] db0dfa106c6bc539411f68f2fd852da6e7b878f895a05d8e08fff279485fb392
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 63459079092ae79b05b89be4e4265aed2d098751e2975158222676c36ad630d5
[INFO] running `Command { std: "docker" "start" "-a" "63459079092ae79b05b89be4e4265aed2d098751e2975158222676c36ad630d5", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/basic_types/functions.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     never_return();
[INFO] [stderr]    |     -------------- any code following this expression is unreachable
[INFO] [stderr] 27 |     println!("Failed!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]  --> src/variables/mod.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let y = 10;
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `x` is assigned to, but never used
[INFO] [stderr]   --> src/variables/mod.rs:59:14
[INFO] [stderr]    |
[INFO] [stderr] 59 |      let mut x: i32 = 1;
[INFO] [stderr]    |              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_x` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> src/variables/mod.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     x += 3;
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/variables/mod.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let y = 4;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/variables/mod.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let y = "I can also be bound to text!"; 
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/flow_control/mod.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     for name in &names {
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/flow_control/mod.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     for n in numbers {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/flow_control/mod.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     for i in 0..=100 {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let v = (2, 3);
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/basic_types/statements_expression.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let v ={
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut s = String::from("hello, ");
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:29:18
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn borrow_object(s: &String) {}
[INFO] [stderr]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r1`
[INFO] [stderr]    --> src/ownership_borrowing/borrowing.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let r1 = &mut s;
[INFO] [stderr]     |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]  --> src/compound_types/tuple.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let t: (u8, u16, i64, &str, String) = (1u8, 2u16, 3i64, "hello", String::from(", world"));
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name0`
[INFO] [stderr]   --> src/compound_types/array.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let name0 = names.get(0).unwrap();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_name0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s1`
[INFO] [stderr]  --> src/compound_types/slice.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let s1: &[i32] = &arr[0..2]; // -> &[i32] is a slice type
[INFO] [stderr]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]  --> src/compound_types/slice.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let s2: &str = "hello, world";
[INFO] [stderr]   |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/compound_types/string.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let s: &str = "hello, world"; // -> 
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]   --> src/compound_types/structs.rs:35:27
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn do_something_with_unit(u: Unit) {   }
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u2`
[INFO] [stderr]   --> src/compound_types/structs.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let u2 = set_email(u1);
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_u2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg1`
[INFO] [stderr]   --> src/compound_types/enums.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let msg1 = Message::Move{x : 1, y : 2}; // Instantiating with x = 1, y = 2 
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_msg1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg2`
[INFO] [stderr]   --> src/compound_types/enums.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let msg2 = Message::Write("hello, world".to_string()); // Instantiating with "hello, world!"
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_msg2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `none`
[INFO] [stderr]   --> src/compound_types/enums.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |     let none = plus_one(None);
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_none`
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]  --> src/variables/mod.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn run(){
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/variables/mod.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn run2(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/variables/mod.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn run3(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/variables/mod.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `define_x` is never used
[INFO] [stderr]   --> src/variables/mod.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn define_x() -> &'static str {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/variables/mod.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn run5(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/variables/mod.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn run6(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run7` is never used
[INFO] [stderr]   --> src/variables/mod.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn run7(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run8` is never used
[INFO] [stderr]   --> src/variables/mod.rs:82:8
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn run8 () {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/flow_control/mod.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn run1() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/flow_control/mod.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn run2(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/flow_control/mod.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/flow_control/mod.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/flow_control/mod.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn run5() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/flow_control/mod.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn run6() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/basic_types/numbers.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run1() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `type_of` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn type_of<T>(_: &T) -> String {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub  fn  run2() {
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn run4(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn run5() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn run6() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run7` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn run7() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run8` is never used
[INFO] [stderr]   --> src/basic_types/numbers.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn run8(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/basic_types/char_bool_unit.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run2() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_char` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn print_char(c: char) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn run5() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `implicitly_ret_unit` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn implicitly_ret_unit() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `explicitly_ret_unit` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn explicitly_ret_unit() -> () {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/basic_types/char_bool_unit.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn run6() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/basic_types/statements_expression.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/basic_types/statements_expression.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn run2() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/basic_types/statements_expression.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `return_value` is never used
[INFO] [stderr]   --> src/basic_types/statements_expression.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn return_value(x: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sum` is never used
[INFO] [stderr]  --> src/basic_types/functions.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn sum(x: i32, y: i32) -> i32 {
[INFO] [stderr]   |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/basic_types/functions.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn run1() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn run2() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn print(){
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `never_return` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn never_return() -> ! {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `never_return_2` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn never_return_2() -> ! {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_option` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn get_option(tp: u8) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `never_return_fn` is never used
[INFO] [stderr]   --> src/basic_types/functions.rs:57:4
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn never_return_fn() -> ! {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/ownership_borrowing/ownership.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]  --> src/ownership_borrowing/ownership.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn run2() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `take_ownership` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn take_ownership(s: String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `give_ownership` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn give_ownership() -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_str` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn print_str(s: String)  {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn run5() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn run6() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run7` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:66:8
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub fn run7() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run8` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub fn run8(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run9` is never used
[INFO] [stderr]   --> src/ownership_borrowing/ownership.rs:96:8
[INFO] [stderr]    |
[INFO] [stderr] 96 | pub fn run9(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run10` is never used
[INFO] [stderr]    --> src/ownership_borrowing/ownership.rs:105:8
[INFO] [stderr]     |
[INFO] [stderr] 105 | pub fn run10() {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/ownership_borrowing/borrowing.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn run2() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `borrow_object` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn borrow_object(s: &String) {}
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `push_str` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn push_str(s: &mut String) {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub  fn run5() {
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub fn run6() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_addr` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:72:4
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn get_addr(r: &char) -> String {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run7` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub  fn run7() {
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run9` is never used
[INFO] [stderr]   --> src/ownership_borrowing/borrowing.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub fn run9() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run10` is never used
[INFO] [stderr]    --> src/ownership_borrowing/borrowing.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub fn run10() {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run11` is never used
[INFO] [stderr]    --> src/ownership_borrowing/borrowing.rs:113:8
[INFO] [stderr]     |
[INFO] [stderr] 113 | pub fn run11() {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/compound_types/tuple.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/compound_types/tuple.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn run2(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/compound_types/tuple.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn run3(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/compound_types/tuple.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn run4(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/compound_types/tuple.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn run5() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sum_multiply` is never used
[INFO] [stderr]   --> src/compound_types/tuple.rs:52:4
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn sum_multiply(nums: (i32, i32)) -> (i32, i32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/compound_types/array.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/compound_types/array.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn run2(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/compound_types/array.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn run3(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/compound_types/slice.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/compound_types/slice.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn run2(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/compound_types/slice.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn run3(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/compound_types/slice.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn run4(){
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/compound_types/string.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]  --> src/compound_types/string.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn run2() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `greetings` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn greetings(s: Box<str>) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `greetings2` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn greetings2(s: &str) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn run5() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn run6() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run7` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn run7() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `greetings3` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn greetings3(s: String) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run8` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub fn run8() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run9` is never used
[INFO] [stderr]   --> src/compound_types/string.rs:94:8
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn run9() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run10` is never used
[INFO] [stderr]    --> src/compound_types/string.rs:101:8
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub fn run10(){
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Person` is never constructed
[INFO] [stderr]  --> src/compound_types/structs.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Person {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]  --> src/compound_types/structs.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn run1(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Unit` is never constructed
[INFO] [stderr]   --> src/compound_types/structs.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct Unit;
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `SomeTrait` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 | trait SomeTrait {
[INFO] [stderr]    |       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn run2() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `do_something_with_unit` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn do_something_with_unit(u: Unit) {   }
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Color` is never constructed
[INFO] [stderr]   --> src/compound_types/structs.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | struct Color(i32, i32, i32);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Point` is never constructed
[INFO] [stderr]   --> src/compound_types/structs.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct Point(i32, i32, i32);
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_color` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn check_color(p: Color) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `User` is never constructed
[INFO] [stderr]   --> src/compound_types/structs.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |  struct User {
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `set_email` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn set_email(u: User) -> User {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stderr]   --> src/compound_types/structs.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 | struct Rectangle {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run6` is never used
[INFO] [stderr]   --> src/compound_types/structs.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 | pub  fn run6() {
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run7` is never used
[INFO] [stderr]    --> src/compound_types/structs.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub fn run7() {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Number` is never used
[INFO] [stderr]  --> src/compound_types/enums.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Number {
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Number1` is never used
[INFO] [stderr]  --> src/compound_types/enums.rs:9:6
[INFO] [stderr]   |
[INFO] [stderr] 9 | enum Number1 {
[INFO] [stderr]   |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn run1() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn run2() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Message` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:41:6
[INFO] [stderr]    |
[INFO] [stderr] 41 | enum Message {
[INFO] [stderr]    |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run3` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `show_message` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn show_message(msg: Message) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run5` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn run5() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `plus_one` is never used
[INFO] [stderr]   --> src/compound_types/enums.rs:90:4
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn plus_one(x: Option<i32>) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Message` is never used
[INFO] [stderr]  --> src/partten_match/matches.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Message {
[INFO] [stderr]   |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run1` is never used
[INFO] [stderr]   --> src/partten_match/matches.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn run1() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `show_message` is never used
[INFO] [stderr]   --> src/partten_match/matches.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn show_message(msg: Message) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run2` is never used
[INFO] [stderr]   --> src/partten_match/matches.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn run2() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Foo` is never used
[INFO] [stderr]   --> src/partten_match/matches.rs:64:6
[INFO] [stderr]    |
[INFO] [stderr] 64 | enum Foo {
[INFO] [stderr]    |      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run4` is never used
[INFO] [stderr]   --> src/partten_match/matches.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub fn run4() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-practice` (bin "rust-practice" test) generated 155 warnings (run `cargo fix --bin "rust-practice" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_practice-1d124b45233ef06a)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "63459079092ae79b05b89be4e4265aed2d098751e2975158222676c36ad630d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63459079092ae79b05b89be4e4265aed2d098751e2975158222676c36ad630d5", kill_on_drop: false }`
[INFO] [stdout] 63459079092ae79b05b89be4e4265aed2d098751e2975158222676c36ad630d5