[INFO] cloning repository https://github.com/cosmir17/seank-rust-study-codes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cosmir17/seank-rust-study-codes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcosmir17%2Fseank-rust-study-codes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcosmir17%2Fseank-rust-study-codes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6838b88692a8b2d08081362d46fdea2d61c63959
[INFO] checking cosmir17/seank-rust-study-codes/6838b88692a8b2d08081362d46fdea2d61c63959 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcosmir17%2Fseank-rust-study-codes" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cosmir17/seank-rust-study-codes
[INFO] finished tweaking git repo https://github.com/cosmir17/seank-rust-study-codes
[INFO] tweaked toml for git repo https://github.com/cosmir17/seank-rust-study-codes written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cosmir17/seank-rust-study-codes on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 428 packages to latest compatible versions
[INFO] [stderr]       Adding aws_lambda_events v0.15.1 (available: v0.16.1)
[INFO] [stderr]       Adding h2 v0.3.26 (available: v0.4.10)
[INFO] [stderr]       Adding lambda_runtime v0.12.0 (available: v0.14.2)
[INFO] [stderr]       Adding mockall v0.12.1 (available: v0.13.1)
[INFO] [stderr]       Adding prost v0.12.6 (available: v0.14.1)
[INFO] [stderr]       Adding tonic v0.11.0 (available: v0.13.1)
[INFO] [stderr]       Adding tonic-build v0.11.0 (available: v0.13.1)
[INFO] [stderr]       Adding tonic-mock v0.3.0 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75c7a1a50f58b5f6c511a2bde1a4ea79b23f5126e33116f3079f8ed4a09d6ad6
[INFO] running `Command { std: "docker" "start" "-a" "75c7a1a50f58b5f6c511a2bde1a4ea79b23f5126e33116f3079f8ed4a09d6ad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75c7a1a50f58b5f6c511a2bde1a4ea79b23f5126e33116f3079f8ed4a09d6ad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75c7a1a50f58b5f6c511a2bde1a4ea79b23f5126e33116f3079f8ed4a09d6ad6", kill_on_drop: false }`
[INFO] [stdout] 75c7a1a50f58b5f6c511a2bde1a4ea79b23f5126e33116f3079f8ed4a09d6ad6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 726792572a63745bdbedcbc584a0e9026203006b4b01a245d20c71586bf70d49
[INFO] running `Command { std: "docker" "start" "-a" "726792572a63745bdbedcbc584a0e9026203006b4b01a245d20c71586bf70d49", kill_on_drop: false }`
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[INFO] [stderr]    Compiling serde_with_macros v3.13.0
[INFO] [stderr]    Compiling actix-web-codegen v4.3.0
[INFO] [stderr]     Checking actix-server v2.6.0
[INFO] [stderr]     Checking chat_program_study v0.1.0 (/opt/rustwide/workdir/chat_program_study)
[INFO] [stderr]    Compiling actix-macros v0.2.4
[INFO] [stderr]     Checking iri-string v0.7.8
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[INFO] [stderr]     Checking chrono v0.4.41
[INFO] [stderr]     Checking lambda_runtime_api_client v0.11.1
[INFO] [stderr]     Checking serde_with v3.13.0
[INFO] [stderr]     Checking rust_tdd_example_study_1 v0.1.0 (/opt/rustwide/workdir/rust_tdd_example_study_1)
[INFO] [stderr]     Checking zstd v0.13.3
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]  --> rust_tdd_example_study_1/src/lib.rs:5:55
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn compute_answer_to_be_tested_from_tests_package(question: i32) -> i32 {
[INFO] [stdout]   |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]  --> rust_tdd_example_study_1/src/lib.rs:9:47
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn compute_answer_internal_logic_test_example(question: i32) -> i32 {
[INFO] [stdout]   |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]   --> rust_tdd_example_study_1/src/lib.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn should_panic(question: i32) -> i32 {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute_answer_internal_logic_test_example` is never used
[INFO] [stdout]  --> rust_tdd_example_study_1/src/lib.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn compute_answer_internal_logic_test_example(question: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `should_panic` is never used
[INFO] [stdout]   --> rust_tdd_example_study_1/src/lib.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn should_panic(question: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_path_to_error v0.1.17
[INFO] [stderr]     Checking actix-http v3.11.0
[INFO] [stderr]     Checking http-serde v2.1.1
[INFO] [stderr]     Checking lambda_runtime v0.12.0
[INFO] [stderr]     Checking tower-http v0.6.6
[INFO] [stderr]     Checking tonic-mock v0.3.0
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]  --> rust_tdd_example_study_1/src/lib.rs:5:55
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn compute_answer_to_be_tested_from_tests_package(question: i32) -> i32 {
[INFO] [stdout]   |                                                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]  --> rust_tdd_example_study_1/src/lib.rs:9:47
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn compute_answer_internal_logic_test_example(question: i32) -> i32 {
[INFO] [stdout]   |                                               ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]   --> rust_tdd_example_study_1/src/lib.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn should_panic(question: i32) -> i32 {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamExt`
[INFO] [stdout]  --> my_tonic_project/src/mock_server.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio_stream::{Stream, StreamExt};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aws_lambda_events v0.15.1
[INFO] [stdout] warning: unused import: `StreamExt`
[INFO] [stdout]  --> my_tonic_project/src/mock_server.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio_stream::{Stream, StreamExt};
[INFO] [stdout]   |                            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev_service_state`
[INFO] [stdout]   --> my_tonic_project/src/client.rs:52:59
[INFO] [stdout]    |
[INFO] [stdout] 52 | ...: &ServiceState, prev_service_state: &ServiceState, instruction: &ServiceInstruction, dt: f32) -> i32 {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_service_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dt`
[INFO] [stdout]   --> my_tonic_project/src/client.rs:52:128
[INFO] [stdout]    |
[INFO] [stdout] 52 | ...nstruction: &ServiceInstruction, dt: f32) -> i32 {
[INFO] [stdout]    |                                     ^^ help: if this is intentional, prefix it with an underscore: `_dt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> my_tonic_project/src/mock_server.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut stream = request.into_inner();
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> my_tonic_project/src/mock_server.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut stream = request.into_inner();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev_service_state`
[INFO] [stdout]   --> my_tonic_project/src/client.rs:52:59
[INFO] [stdout]    |
[INFO] [stdout] 52 | ...: &ServiceState, prev_service_state: &ServiceState, instruction: &ServiceInstruction, dt: f32) -> i32 {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prev_service_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dt`
[INFO] [stdout]   --> my_tonic_project/src/client.rs:52:128
[INFO] [stdout]    |
[INFO] [stdout] 52 | ...nstruction: &ServiceInstruction, dt: f32) -> i32 {
[INFO] [stdout]    |                                     ^^ help: if this is intentional, prefix it with an underscore: `_dt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_for_io_error` is never used
[INFO] [stdout]   --> my_tonic_project/src/mock_server.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn match_for_io_error(err_status: &Status) -> Option<&std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking code_example_study v0.1.0 (/opt/rustwide/workdir/code_example_study)
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> my_tonic_project/src/mock_server.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut stream = request.into_inner();
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `switch`
[INFO] [stdout]   --> code_example_study/examples/trait_examples.rs:51:31
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn returns_summarizable_wrong(switch: bool) -> impl Summary { //if else have incompatible types
[INFO] [stdout]    |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_switch`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> code_example_study/examples/trait_examples.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> code_example_study/examples/trait_examples.rs:102:60
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn some_function<T: Display + Clone, U: Clone + Debug>(t: &T, u: &U) -> i32 {
[INFO] [stdout]     |                                                            ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]    --> code_example_study/examples/trait_examples.rs:102:67
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn some_function<T: Display + Clone, U: Clone + Debug>(t: &T, u: &U) -> i32 {
[INFO] [stdout]     |                                                                   ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> code_example_study/examples/trait_examples.rs:106:39
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn some_function_refactored<T, U>(t: &T, u: &U) -> i32
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]    --> code_example_study/examples/trait_examples.rs:106:46
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn some_function_refactored<T, U>(t: &T, u: &U) -> i32
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tweet`
[INFO] [stdout]    --> code_example_study/examples/trait_examples.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let tweet = Tweet {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_tweet`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> my_tonic_project/src/mock_server.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut stream = request.into_inner();
[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: function `returns_summarizable` is never used
[INFO] [stdout]   --> code_example_study/examples/trait_examples.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn returns_summarizable() -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returns_summarizable_wrong` is never used
[INFO] [stdout]   --> code_example_study/examples/trait_examples.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn returns_summarizable_wrong(switch: bool) -> impl Summary { //if else have incompatible types
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_for_io_error` is never used
[INFO] [stdout]   --> my_tonic_project/src/mock_server.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn match_for_io_error(err_status: &Status) -> Option<&std::io::Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> code_example_study/examples/main_big_file.rs:871:13
[INFO] [stdout]     |
[INFO] [stdout] 871 |         let a = fetch_data_async(0);
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_data_async` is never used
[INFO] [stdout]    --> code_example_study/examples/main_big_file.rs:865:14
[INFO] [stdout]     |
[INFO] [stdout] 865 |     async fn fetch_data_async(id: i32) -> String {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> code_example_study/examples/main_big_file.rs:870:14
[INFO] [stdout]     |
[INFO] [stdout] 870 |     async fn main() {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `into_parts` found for struct `PathBuf` in the current scope
[INFO] [stdout]  --> code_example_study/examples/pathbuf.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let parts = path.into_parts();
[INFO] [stdout]   |                      ^^^^^^^^^^ method not found in `PathBuf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `code_example_study` (example "pathbuf") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: trait `Vehicle` is never used
[INFO] [stdout]  --> code_example_study/examples/main_box.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Vehicle {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Truck` is never constructed
[INFO] [stdout]  --> code_example_study/examples/main_box.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Truck {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "726792572a63745bdbedcbc584a0e9026203006b4b01a245d20c71586bf70d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "726792572a63745bdbedcbc584a0e9026203006b4b01a245d20c71586bf70d49", kill_on_drop: false }`
[INFO] [stdout] 726792572a63745bdbedcbc584a0e9026203006b4b01a245d20c71586bf70d49