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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GHGHGHKO/rust-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGHGHGHKO%2Frust-tutorial", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e6f47327e92834426890de35d26d935f5757974
[INFO] checking GHGHGHKO/rust-tutorial against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGHGHGHKO%2Frust-tutorial" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GHGHGHKO/rust-tutorial
[INFO] finished tweaking git repo https://github.com/GHGHGHKO/rust-tutorial
[INFO] tweaked toml for git repo https://github.com/GHGHGHKO/rust-tutorial written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GHGHGHKO/rust-tutorial on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GHGHGHKO/rust-tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sysinfo v0.29.4
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[INFO] [stdout] warning: unused import: `blog::ip_address_result::get_ip_address`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use blog::ip_address_result::get_ip_address;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `blog::ip_address_result::print_ip_address`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use blog::ip_address_result::print_ip_address;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `blog::ip_address_result::get_ip_address`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use blog::ip_address_result::get_ip_address;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `blog::ip_address_result::print_ip_address`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use blog::ip_address_result::print_ip_address;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signed_int`
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let signed_int : i64 = 0xff_ff_ff_ff_ff; // type i32
[INFO] [stdout]   |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_int`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned_int`
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let unsigned_int = 123_u32; // type u32
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let a: u64 = 123; // type u64
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pi`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let pi = 3.14159265358979323846264338327950288; // type f64
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `small_pi`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let small_pi : f32 = 3.14; // type f32
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_small_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let url = "https://httpbin.org/ip"; // type &str
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tenor_key`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let tenor_key = env::var("TENOR_API_KEY")
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tenor_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let c = 'z';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let z = 'ℤ';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heart_eyed_cat`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let heart_eyed_cat = '😻';
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/blog/ownership.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut fib_numbers = add_vector(fib_numbers);              // 2. `add_vector` 함수를 호출합니다.
[INFO] [stdout]   |         ----^^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signed_int`
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let signed_int : i64 = 0xff_ff_ff_ff_ff; // type i32
[INFO] [stdout]   |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_int`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned_int`
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let unsigned_int = 123_u32; // type u32
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let a: u64 = 123; // type u64
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pi`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let pi = 3.14159265358979323846264338327950288; // type f64
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `small_pi`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let small_pi : f32 = 3.14; // type f32
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_small_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let url = "https://httpbin.org/ip"; // type &str
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tenor_key`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let tenor_key = env::var("TENOR_API_KEY")
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tenor_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let c = 'z';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let z = 'ℤ';
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heart_eyed_cat`
[INFO] [stdout]   --> src/type_inference/awesome_type.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let heart_eyed_cat = '😻';
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heart_eyed_cat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned_int`
[INFO] [stdout]    --> src/main.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let unsigned_int = 123_u32;
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/main.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let a: u64 = 123;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pi`
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let pi = 3.14159265358979323846264338327950288;
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `small_pi`
[INFO] [stdout]    --> src/main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let small_pi : f32 = 3.14;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_small_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/main.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let url = "https://httpbin.org/ip";
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/blog/ownership.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut fib_numbers = add_vector(fib_numbers);              // 2. `add_vector` 함수를 호출합니다.
[INFO] [stdout]   |         ----^^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env_key`
[INFO] [stdout]    --> src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let env_key = env::var("ENV_KEY")
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_env_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signed_int`
[INFO] [stdout]    --> src/main.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let signed_int: i64 = 0xff_ff_ff_ff_ff; // ???
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_receipt` is never used
[INFO] [stdout]    --> src/main.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn read_receipt() -> Result<(), Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable_examples` is never used
[INFO] [stdout]    --> src/main.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn variable_examples() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.69s
[INFO] [stdout] warning: struct `HttpBinResponse` is never constructed
[INFO] [stdout]  --> src/dto/http_bin_response.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct HttpBinResponse {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TenorResults` is never constructed
[INFO] [stdout]  --> src/dto/tenor_response.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TenorResults {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Results` is never constructed
[INFO] [stdout]  --> src/dto/tenor_response.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Results {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MediaFormats` is never constructed
[INFO] [stdout]   --> src/dto/tenor_response.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct MediaFormats {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GifFields` is never constructed
[INFO] [stdout]   --> src/dto/tenor_response.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct GifFields {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `http_bin_client` is never used
[INFO] [stdout]  --> src/client/http_bin_client.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn http_bin_client() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tenor_client` is never used
[INFO] [stdout]  --> src/client/tenor_client.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn tenor_client() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `awesome_type` is never used
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn awesome_type() {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `account_history` are never read
[INFO] [stdout]  --> src/integer_example/memory_safe.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct BankAccount {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 2 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     account_history: Vec<i32>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `price` are never read
[INFO] [stdout]  --> src/blog/shadowing.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct GsPostbox {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 3 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     price: u32
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GsPostbox` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ip_address` is never used
[INFO] [stdout]  --> src/blog/ip_address_result.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_ip_address() -> Result<Option<String>, reqwest::Error> { // 1. 이 함수의 결과는
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: openssl v0.10.50
[INFO] [stdout] warning: function `print_ip_address` is never used
[INFO] [stdout]   --> src/blog/ip_address_result.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn print_ip_address(ip: &Result<Option<String>, reqwest::Error>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]  --> src/blog/os_info_result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ErrorMessage {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     message: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned_int`
[INFO] [stdout]    --> src/main.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let unsigned_int = 123_u32;
[INFO] [stdout]     |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/main.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let a: u64 = 123;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pi`
[INFO] [stdout]    --> src/main.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |     let pi = 3.14159265358979323846264338327950288;
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `small_pi`
[INFO] [stdout]    --> src/main.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |     let small_pi : f32 = 3.14;
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_small_pi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `url`
[INFO] [stdout]    --> src/main.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let url = "https://httpbin.org/ip";
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_url`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env_key`
[INFO] [stdout]    --> src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let env_key = env::var("ENV_KEY")
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_env_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `signed_int`
[INFO] [stdout]    --> src/main.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let signed_int: i64 = 0xff_ff_ff_ff_ff; // ???
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_signed_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_receipt` is never used
[INFO] [stdout]    --> src/main.rs:125:4
[INFO] [stdout]     |
[INFO] [stdout] 125 | fn read_receipt() -> Result<(), Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable_examples` is never used
[INFO] [stdout]    --> src/main.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn variable_examples() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HttpBinResponse` is never constructed
[INFO] [stdout]  --> src/dto/http_bin_response.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct HttpBinResponse {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TenorResults` is never constructed
[INFO] [stdout]  --> src/dto/tenor_response.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct TenorResults {
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Results` is never constructed
[INFO] [stdout]  --> src/dto/tenor_response.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Results {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MediaFormats` is never constructed
[INFO] [stdout]   --> src/dto/tenor_response.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct MediaFormats {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GifFields` is never constructed
[INFO] [stdout]   --> src/dto/tenor_response.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct GifFields {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `http_bin_client` is never used
[INFO] [stdout]  --> src/client/http_bin_client.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn http_bin_client() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tenor_client` is never used
[INFO] [stdout]  --> src/client/tenor_client.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn tenor_client() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `awesome_type` is never used
[INFO] [stdout]  --> src/type_inference/awesome_type.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn awesome_type() {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `account_history` are never read
[INFO] [stdout]  --> src/integer_example/memory_safe.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct BankAccount {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 2 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     account_history: Vec<i32>
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `price` are never read
[INFO] [stdout]  --> src/blog/shadowing.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct GsPostbox {
[INFO] [stdout]   |        --------- fields in this struct
[INFO] [stdout] 3 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     price: u32
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GsPostbox` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ip_address` is never used
[INFO] [stdout]  --> src/blog/ip_address_result.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_ip_address() -> Result<Option<String>, reqwest::Error> { // 1. 이 함수의 결과는
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_ip_address` is never used
[INFO] [stdout]   --> src/blog/ip_address_result.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn print_ip_address(ip: &Result<Option<String>, reqwest::Error>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]  --> src/blog/os_info_result.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ErrorMessage {
[INFO] [stdout]   |            ------------ field in this struct
[INFO] [stdout] 5 |     message: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ErrorMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "098a666266e3f1b469e6d0ebc4c8b28e87bb27d18edc72c3d7e6d251774ce65f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098a666266e3f1b469e6d0ebc4c8b28e87bb27d18edc72c3d7e6d251774ce65f", kill_on_drop: false }`
[INFO] [stdout] 098a666266e3f1b469e6d0ebc4c8b28e87bb27d18edc72c3d7e6d251774ce65f
