[INFO] cloning repository https://github.com/barisAtmn/hello-rust-101
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/barisAtmn/hello-rust-101" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbarisAtmn%2Fhello-rust-101", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbarisAtmn%2Fhello-rust-101'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1155a9cef345489600a055f5abf880b7cdd644d
[INFO] testing barisAtmn/hello-rust-101 against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbarisAtmn%2Fhello-rust-101" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/barisAtmn/hello-rust-101 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/barisAtmn/hello-rust-101
[INFO] finished tweaking git repo https://github.com/barisAtmn/hello-rust-101
[INFO] tweaked toml for git repo https://github.com/barisAtmn/hello-rust-101 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/barisAtmn/hello-rust-101 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5a412289a8d48b1c2baa5412fac5dd0db01c964b9041a8e8a34271c1d15fbac
[INFO] running `Command { std: "docker" "start" "-a" "d5a412289a8d48b1c2baa5412fac5dd0db01c964b9041a8e8a34271c1d15fbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5a412289a8d48b1c2baa5412fac5dd0db01c964b9041a8e8a34271c1d15fbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a412289a8d48b1c2baa5412fac5dd0db01c964b9041a8e8a34271c1d15fbac", kill_on_drop: false }`
[INFO] [stdout] d5a412289a8d48b1c2baa5412fac5dd0db01c964b9041a8e8a34271c1d15fbac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aed54f7eae9b25829f88367c6d3cca2f7dcc3a500cb5d340e855f62357ca666f
[INFO] running `Command { std: "docker" "start" "-a" "aed54f7eae9b25829f88367c6d3cca2f7dcc3a500cb5d340e855f62357ca666f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stdout]  --> src/enums_test.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/enums_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/enums_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> src/enums_test.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Pointer, Debug};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Error`
[INFO] [stdout]  --> src/enums_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/macros.rs:7:27
[INFO] [stdout]    |
[INFO] [stdout] 7  |         println!("Hello!");
[INFO] [stdout]    |                           ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     say_hello!()
[INFO] [stdout]    |     ------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `say_hello`
[INFO] [stdout]    = note: this warning originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/error_handling.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stdout]    |                                    ^                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stdout] 10 +     if k.is_ok() {Ok(k)} else {Err(Error::last_os_error())}
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/enums_test.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let m = f.metadata().unwrap().accessed().unwrap();
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/closures.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let f = move || {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `td`
[INFO] [stdout]   --> src/threads.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let td = handle.join().unwrap();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_td`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/lifetime.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s: &'static 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: `name`
[INFO] [stdout]   --> src/lifetime.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let name: &str = "Rust";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name1`
[INFO] [stdout]   --> src/lifetime.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let name1: String = String::from("Rust");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_name1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/generic_test.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let e = 4 ;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/closures.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |    let mut v = vec![2,4,6];
[INFO] [stdout]    |        ----^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `enemy`
[INFO] [stdout]  --> src/traits.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enemy: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `life`
[INFO] [stdout]  --> src/traits.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     life: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/traits.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     name: &'static str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/enums_test.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]   --> src/enums_test.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Red(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Make`
[INFO] [stdout]   --> src/enums_test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Make {x:String, y:String}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/derive_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     name: &'a str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/derive_test.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> src/derive_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/derive_test.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spawn_test`
[INFO] [stdout]  --> src/threads.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn spawn_test() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `THRESHOLD`
[INFO] [stdout]  --> src/lifetime.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const THRESHOLD: i32 = 10;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `macro_test`
[INFO] [stdout]   --> src/macros.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn macro_test() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `callF` should have a snake case name
[INFO] [stdout]   --> src/traits.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn callF() {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to snake case: `call_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH5` should have a snake case name
[INFO] [stdout]  --> src/error_handling.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn errorH5() -> Result<std::io::Result<usize>, Error> {
[INFO] [stdout]   |    ^^^^^^^ help: convert the identifier to snake case: `error_h5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH4` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn errorH4() -> Result<File, ()> {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH3` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn errorH3() -> File {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH2` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn errorH2() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     File::open("/Users/baris.ataman/Desktop/Projects/hello-rust/resources/foo").map(
[INFO] [stdout] 38 | |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stdout] 39 | |     );
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:38:56
[INFO] [stdout]    |
[INFO] [stdout] 38 |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH1` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn errorH1() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn errorH() {
[INFO] [stdout]    |    ^^^^^^ help: convert the identifier to snake case: `error_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `callErrors` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn callErrors() {
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `call_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     errorH5().unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     errorH4();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     errorH3().read_to_string(&mut buffer);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `create_random`, `hi`
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use hello::{hi,create_random};
[INFO] [stdout]   |             ^^ ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(unused_imports)]
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `condition`, `loop_test`, `os_env_ar`, `types`
[INFO] [stdout]  --> src/main.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use hello::types::{types, condition, loop_test, os_env_ar};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hello::references_borrowing::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use hello::references_borrowing::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hello::struct_test::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hello::struct_test::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.09s
[INFO] running `Command { std: "docker" "inspect" "aed54f7eae9b25829f88367c6d3cca2f7dcc3a500cb5d340e855f62357ca666f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aed54f7eae9b25829f88367c6d3cca2f7dcc3a500cb5d340e855f62357ca666f", kill_on_drop: false }`
[INFO] [stdout] aed54f7eae9b25829f88367c6d3cca2f7dcc3a500cb5d340e855f62357ca666f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4da70442708d99976852983b81d67303ee93e139e280b7a6992352738f3a658
[INFO] running `Command { std: "docker" "start" "-a" "a4da70442708d99976852983b81d67303ee93e139e280b7a6992352738f3a658", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stdout]  --> src/enums_test.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/enums_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/enums_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> src/enums_test.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Pointer, Debug};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Error`
[INFO] [stdout]  --> src/enums_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/macros.rs:7:27
[INFO] [stdout]    |
[INFO] [stdout] 7  |         println!("Hello!");
[INFO] [stdout]    |                           ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     say_hello!()
[INFO] [stdout]    |     ------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `say_hello`
[INFO] [stdout]    = note: this warning originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/error_handling.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stdout]    |                                    ^                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stdout] 10 +     if k.is_ok() {Ok(k)} else {Err(Error::last_os_error())}
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/enums_test.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let m = f.metadata().unwrap().accessed().unwrap();
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/closures.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let f = move || {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `td`
[INFO] [stdout]   --> src/threads.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let td = handle.join().unwrap();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_td`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/lifetime.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s: &'static 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: `name`
[INFO] [stdout]   --> src/lifetime.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let name: &str = "Rust";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name1`
[INFO] [stdout]   --> src/lifetime.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let name1: String = String::from("Rust");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_name1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/generic_test.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let e = 4 ;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/closures.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |    let mut v = vec![2,4,6];
[INFO] [stdout]    |        ----^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `enemy`
[INFO] [stdout]  --> src/traits.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enemy: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `life`
[INFO] [stdout]  --> src/traits.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     life: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/traits.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     name: &'static str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/enums_test.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]   --> src/enums_test.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Red(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Make`
[INFO] [stdout]   --> src/enums_test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Make {x:String, y:String}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/derive_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     name: &'a str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/derive_test.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> src/derive_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/derive_test.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spawn_test`
[INFO] [stdout]  --> src/threads.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn spawn_test() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `THRESHOLD`
[INFO] [stdout]  --> src/lifetime.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const THRESHOLD: i32 = 10;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `macro_test`
[INFO] [stdout]   --> src/macros.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn macro_test() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `callF` should have a snake case name
[INFO] [stdout]   --> src/traits.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn callF() {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to snake case: `call_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH5` should have a snake case name
[INFO] [stdout]  --> src/error_handling.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn errorH5() -> Result<std::io::Result<usize>, Error> {
[INFO] [stdout]   |    ^^^^^^^ help: convert the identifier to snake case: `error_h5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH4` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn errorH4() -> Result<File, ()> {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH3` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn errorH3() -> File {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH2` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn errorH2() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     File::open("/Users/baris.ataman/Desktop/Projects/hello-rust/resources/foo").map(
[INFO] [stdout] 38 | |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stdout] 39 | |     );
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:38:56
[INFO] [stdout]    |
[INFO] [stdout] 38 |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH1` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn errorH1() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn errorH() {
[INFO] [stdout]    |    ^^^^^^ help: convert the identifier to snake case: `error_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `callErrors` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn callErrors() {
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `call_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     errorH5().unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     errorH4();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     errorH3().read_to_string(&mut buffer);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `create_random`, `hi`
[INFO] [stdout]  --> src/main.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use hello::{hi,create_random};
[INFO] [stdout]   |             ^^ ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(unused_imports)]
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `condition`, `loop_test`, `os_env_ar`, `types`
[INFO] [stdout]  --> src/main.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use hello::types::{types, condition, loop_test, os_env_ar};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hello::references_borrowing::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use hello::references_borrowing::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hello::struct_test::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hello::struct_test::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stdout]  --> src/enums_test.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/enums_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/enums_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> src/enums_test.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fmt::{Pointer, Debug};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Error`
[INFO] [stdout]  --> src/enums_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::io::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod enums_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/macros.rs:7:27
[INFO] [stdout]    |
[INFO] [stdout] 7  |         println!("Hello!");
[INFO] [stdout]    |                           ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     say_hello!()
[INFO] [stdout]    |     ------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `say_hello`
[INFO] [stdout]    = note: this warning originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/error_handling.rs:10:36
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stdout]    |                                    ^                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stdout] 10 +     if k.is_ok() {Ok(k)} else {Err(Error::last_os_error())}
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/enums_test.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let m = f.metadata().unwrap().accessed().unwrap();
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/closures.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let f = move || {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `td`
[INFO] [stdout]   --> src/threads.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let td = handle.join().unwrap();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_td`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/lifetime.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let s: &'static 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: `name`
[INFO] [stdout]   --> src/lifetime.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let name: &str = "Rust";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name1`
[INFO] [stdout]   --> src/lifetime.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let name1: String = String::from("Rust");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_name1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/generic_test.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let e = 4 ;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/closures.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |    let mut v = vec![2,4,6];
[INFO] [stdout]    |        ----^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `enemy`
[INFO] [stdout]  --> src/traits.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enemy: bool,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `life`
[INFO] [stdout]  --> src/traits.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     life: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/traits.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     name: &'static str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Empty`
[INFO] [stdout]   --> src/enums_test.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Empty,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Red`
[INFO] [stdout]   --> src/enums_test.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Red(String),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Make`
[INFO] [stdout]   --> src/enums_test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Make {x:String, y:String}
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/enums_test.rs:9:10
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/derive_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     name: &'a str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/derive_test.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> src/derive_test.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/derive_test.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `spawn_test`
[INFO] [stdout]  --> src/threads.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn spawn_test() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `THRESHOLD`
[INFO] [stdout]  --> src/lifetime.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const THRESHOLD: i32 = 10;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `macro_test`
[INFO] [stdout]   --> src/macros.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn macro_test() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `callF` should have a snake case name
[INFO] [stdout]   --> src/traits.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn callF() {
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to snake case: `call_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH5` should have a snake case name
[INFO] [stdout]  --> src/error_handling.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn errorH5() -> Result<std::io::Result<usize>, Error> {
[INFO] [stdout]   |    ^^^^^^^ help: convert the identifier to snake case: `error_h5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH4` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn errorH4() -> Result<File, ()> {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH3` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn errorH3() -> File {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH2` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn errorH2() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     File::open("/Users/baris.ataman/Desktop/Projects/hello-rust/resources/foo").map(
[INFO] [stdout] 38 | |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stdout] 39 | |     );
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:38:56
[INFO] [stdout]    |
[INFO] [stdout] 38 |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH1` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn errorH1() {
[INFO] [stdout]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `errorH` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn errorH() {
[INFO] [stdout]    |    ^^^^^^ help: convert the identifier to snake case: `error_h`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `callErrors` should have a snake case name
[INFO] [stdout]   --> src/error_handling.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn callErrors() {
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `call_errors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     errorH5().unwrap();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     errorH4();
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/error_handling.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     errorH3().read_to_string(&mut buffer);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "a4da70442708d99976852983b81d67303ee93e139e280b7a6992352738f3a658", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4da70442708d99976852983b81d67303ee93e139e280b7a6992352738f3a658", kill_on_drop: false }`
[INFO] [stdout] a4da70442708d99976852983b81d67303ee93e139e280b7a6992352738f3a658
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee12b4fb9b77429eeb61741aadee2922074cb89c24145f792f304721046ebefe
[INFO] running `Command { std: "docker" "start" "-a" "ee12b4fb9b77429eeb61741aadee2922074cb89c24145f792f304721046ebefe", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `BorrowMut`, `Borrow`
[INFO] [stderr]  --> src/enums_test.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::borrow::{Borrow, BorrowMut};
[INFO] [stderr]   |                   ^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod enums_test;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::any::Any`
[INFO] [stderr]  --> src/enums_test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::any::Any;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod enums_test;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert::TryInto`
[INFO] [stderr]  --> src/enums_test.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::convert::TryInto;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod enums_test;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Pointer`
[INFO] [stderr]  --> src/enums_test.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fmt::{Pointer, Debug};
[INFO] [stderr]   |                ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod enums_test;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Error`
[INFO] [stderr]  --> src/enums_test.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::io::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod enums_test;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]   --> src/macros.rs:7:27
[INFO] [stderr]    |
[INFO] [stderr] 7  |         println!("Hello!");
[INFO] [stderr]    |                           ^
[INFO] [stderr] ...
[INFO] [stderr] 13 |     say_hello!()
[INFO] [stderr]    |     ------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]    = note: macro invocations at the end of a block are treated as expressions
[INFO] [stderr]    = note: to ignore the value produced by the macro, add a semicolon after the invocation of `say_hello`
[INFO] [stderr]    = note: this warning originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/error_handling.rs:10:36
[INFO] [stderr]    |
[INFO] [stderr] 10 |     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stderr]    |                                    ^                      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 10 -     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stderr] 10 +     if k.is_ok() {Ok(k)} else {Err(Error::last_os_error())}
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]   --> src/enums_test.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let m = f.metadata().unwrap().accessed().unwrap();
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/closures.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let f = move || {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `td`
[INFO] [stderr]   --> src/threads.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let td = handle.join().unwrap();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_td`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]  --> src/lifetime.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let s: &'static str = "hello world";
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/lifetime.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let name: &str = "Rust";
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name1`
[INFO] [stderr]   --> src/lifetime.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let name1: String = String::from("Rust");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_name1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/generic_test.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let e = 4 ;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/closures.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |    let mut v = vec![2,4,6];
[INFO] [stderr]    |        ----^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `enemy`
[INFO] [stderr]  --> src/traits.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     enemy: bool,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `life`
[INFO] [stderr]  --> src/traits.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     life: u32,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/traits.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     name: &'static str,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/enums_test.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums_test.rs:9:10
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Red`
[INFO] [stderr]   --> src/enums_test.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Red(String),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums_test.rs:9:10
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Make`
[INFO] [stderr]   --> src/enums_test.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Make {x:String, y:String}
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/enums_test.rs:9:10
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/derive_test.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     name: &'a str,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/derive_test.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `age`
[INFO] [stderr]  --> src/derive_test.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     age: u8
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/derive_test.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `spawn_test`
[INFO] [stderr]  --> src/threads.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn spawn_test() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `THRESHOLD`
[INFO] [stderr]  --> src/lifetime.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const THRESHOLD: i32 = 10;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `macro_test`
[INFO] [stderr]   --> src/macros.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn macro_test() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `callF` should have a snake case name
[INFO] [stderr]   --> src/traits.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn callF() {
[INFO] [stderr]    |        ^^^^^ help: convert the identifier to snake case: `call_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `errorH5` should have a snake case name
[INFO] [stderr]  --> src/error_handling.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn errorH5() -> Result<std::io::Result<usize>, Error> {
[INFO] [stderr]   |    ^^^^^^^ help: convert the identifier to snake case: `error_h5`
[INFO] [stderr] 
[INFO] [stderr] warning: function `errorH4` should have a snake case name
[INFO] [stderr]   --> src/error_handling.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn errorH4() -> Result<File, ()> {
[INFO] [stderr]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h4`
[INFO] [stderr] 
[INFO] [stderr] warning: function `errorH3` should have a snake case name
[INFO] [stderr]   --> src/error_handling.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn errorH3() -> File {
[INFO] [stderr]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h3`
[INFO] [stderr] 
[INFO] [stderr] warning: function `errorH2` should have a snake case name
[INFO] [stderr]   --> src/error_handling.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn errorH2() {
[INFO] [stderr]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/error_handling.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | /     File::open("/Users/baris.ataman/Desktop/Projects/hello-rust/resources/foo").map(
[INFO] [stderr] 38 | |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stderr] 39 | |     );
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/error_handling.rs:38:56
[INFO] [stderr]    |
[INFO] [stderr] 38 |      |mut arg| -> () { let mut buffer = String::new(); arg.read_to_string(&mut buffer); println!("{}", buffer )}
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `errorH1` should have a snake case name
[INFO] [stderr]   --> src/error_handling.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn errorH1() {
[INFO] [stderr]    |    ^^^^^^^ help: convert the identifier to snake case: `error_h1`
[INFO] [stderr] 
[INFO] [stderr] warning: function `errorH` should have a snake case name
[INFO] [stderr]   --> src/error_handling.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn errorH() {
[INFO] [stderr]    |    ^^^^^^ help: convert the identifier to snake case: `error_h`
[INFO] [stderr] 
[INFO] [stderr] warning: function `callErrors` should have a snake case name
[INFO] [stderr]   --> src/error_handling.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub fn callErrors() {
[INFO] [stderr]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `call_errors`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/error_handling.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     errorH5().unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/error_handling.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     errorH4();
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/error_handling.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     errorH3().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `hello` (lib) generated 39 warnings
[INFO] [stderr] warning: `hello` (lib test) generated 39 warnings (39 duplicates)
[INFO] [stderr] warning: unused imports: `create_random`, `hi`
[INFO] [stderr]  --> src/main.rs:2:13
[INFO] [stderr]   |
[INFO] [stderr] 2 | use hello::{hi,create_random};
[INFO] [stderr]   |             ^^ ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/main.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(unused_imports)]
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `condition`, `loop_test`, `os_env_ar`, `types`
[INFO] [stderr]  --> src/main.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use hello::types::{types, condition, loop_test, os_env_ar};
[INFO] [stderr]   |                    ^^^^^  ^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hello::references_borrowing::*`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use hello::references_borrowing::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hello::struct_test::*`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use hello::struct_test::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hello` (bin "hello" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello-e4755d145435c5aa)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello-7bdd459d72a993b5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> /opt/rustwide/workdir/src/error_handling.rs:10:36
[INFO] [stderr]    |
[INFO] [stderr] 10 |     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stderr]    |                                    ^                      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 10 -     if k.is_ok() {Ok(k)} else {Err((Error::last_os_error()))}
[INFO] [stderr] 10 +     if k.is_ok() {Ok(k)} else {Err(Error::last_os_error())}
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee12b4fb9b77429eeb61741aadee2922074cb89c24145f792f304721046ebefe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee12b4fb9b77429eeb61741aadee2922074cb89c24145f792f304721046ebefe", kill_on_drop: false }`
[INFO] [stdout] ee12b4fb9b77429eeb61741aadee2922074cb89c24145f792f304721046ebefe