[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] checking barisAtmn/hello-rust-101 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbarisAtmn%2Fhello-rust-101" "/workspace/builds/worker-47/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-47/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/barisAtmn/hello-rust-101 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-47/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae8d54359769753ac3adc2350cd46d5de53d65c4e29cdcd8cf145dbb0377f5f2
[INFO] running `Command { std: "docker" "start" "-a" "ae8d54359769753ac3adc2350cd46d5de53d65c4e29cdcd8cf145dbb0377f5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae8d54359769753ac3adc2350cd46d5de53d65c4e29cdcd8cf145dbb0377f5f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae8d54359769753ac3adc2350cd46d5de53d65c4e29cdcd8cf145dbb0377f5f2", kill_on_drop: false }`
[INFO] [stdout] ae8d54359769753ac3adc2350cd46d5de53d65c4e29cdcd8cf145dbb0377f5f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bd4d0aa7ac8ad7d5954bfeb856857a7c0192e15d364b1972f80600ea5c437a3
[INFO] running `Command { std: "docker" "start" "-a" "8bd4d0aa7ac8ad7d5954bfeb856857a7c0192e15d364b1972f80600ea5c437a3", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.87
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[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]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking hello v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/error_handling.rs (1 fix)
[INFO] [stderr]        Fixed src/generic_test.rs (1 fix)
[INFO] [stderr]        Fixed src/threads.rs (1 fix)
[INFO] [stderr]        Fixed src/lifetime.rs (3 fixes)
[INFO] [stderr]        Fixed src/enums_test.rs (6 fixes)
[INFO] [stderr]        Fixed src/closures.rs (2 fixes)
[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: 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: 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] 
[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] 
[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] 
[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: 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: 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: 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: 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: 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: 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: 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] 
[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] 
[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] 
[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: 23 warnings emitted
[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: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (4 fixes)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking hello v0.1.0 (/tmp/fixit)
[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: 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: 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] 
[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] 
[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] 
[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: 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] 
[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] 
[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] 
[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: 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: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "8bd4d0aa7ac8ad7d5954bfeb856857a7c0192e15d364b1972f80600ea5c437a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bd4d0aa7ac8ad7d5954bfeb856857a7c0192e15d364b1972f80600ea5c437a3", kill_on_drop: false }`
[INFO] [stdout] 8bd4d0aa7ac8ad7d5954bfeb856857a7c0192e15d364b1972f80600ea5c437a3