[INFO] updating cached repository LarryLo/spark_submit_helper
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LarryLo/spark_submit_helper
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LarryLo/spark_submit_helper" "work/ex/clippy-test-run/sources/stable/gh/LarryLo/spark_submit_helper"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/LarryLo/spark_submit_helper'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LarryLo/spark_submit_helper" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LarryLo/spark_submit_helper"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LarryLo/spark_submit_helper'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c26d51ba4bd01bfe393c3c222309c69d26a11bb9
[INFO] sha for GitHub repo LarryLo/spark_submit_helper: c26d51ba4bd01bfe393c3c222309c69d26a11bb9
[INFO] validating manifest of LarryLo/spark_submit_helper on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of LarryLo/spark_submit_helper on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing LarryLo/spark_submit_helper
[INFO] finished frobbing LarryLo/spark_submit_helper
[INFO] frobbed toml for LarryLo/spark_submit_helper written to work/ex/clippy-test-run/sources/stable/gh/LarryLo/spark_submit_helper/Cargo.toml
[INFO] started frobbing LarryLo/spark_submit_helper
[INFO] finished frobbing LarryLo/spark_submit_helper
[INFO] frobbed toml for LarryLo/spark_submit_helper written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LarryLo/spark_submit_helper/Cargo.toml
[INFO] crate LarryLo/spark_submit_helper has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting LarryLo/spark_submit_helper against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/LarryLo/spark_submit_helper:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 27b51bd375966b45aff9877651ced5edd8055e8e1405c37206cac8a7184a88fb
[INFO] running `"docker" "start" "-a" "27b51bd375966b45aff9877651ced5edd8055e8e1405c37206cac8a7184a88fb"`
[INFO] [stderr]     Checking hyper v0.10.12
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking router v0.5.1
[INFO] [stderr]     Checking spark_submit_helper v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         Python { user: user, subject: subject}
[INFO] [stderr]    |                  ^^^^^^^^^^ help: replace it with: `user`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:31:30
[INFO] [stderr]    |
[INFO] [stderr] 31 |         Python { user: user, subject: subject}
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^ help: replace it with: `subject`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |         Scala { user: user, subject: subject}
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `user`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |         Scala { user: user, subject: subject}
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^ help: replace it with: `subject`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |             ResponseMetrics { total: total, error: error, success: total - error }
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: replace it with: `total`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:21:45
[INFO] [stderr]    |
[INFO] [stderr] 21 |             ResponseMetrics { total: total, error: error, success: total - error }
[INFO] [stderr]    |                                             ^^^^^^^^^^^^ help: replace it with: `error`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:28:39
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     ResponseMetrics { total: total, error: 0, success: total}
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: replace it with: `total`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ResponseMetrics { total: total, error: fail + error, success: success }
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: replace it with: `total`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:49:66
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ResponseMetrics { total: total, error: fail + error, success: success }
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^ help: replace it with: `success`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         Python { user: user, subject: subject}
[INFO] [stderr]    |                  ^^^^^^^^^^ help: replace it with: `user`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:31:30
[INFO] [stderr]    |
[INFO] [stderr] 31 |         Python { user: user, subject: subject}
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^ help: replace it with: `subject`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |         Scala { user: user, subject: subject}
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `user`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/lang.rs:61:29
[INFO] [stderr]    |
[INFO] [stderr] 61 |         Scala { user: user, subject: subject}
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^ help: replace it with: `subject`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:21:31
[INFO] [stderr]    |
[INFO] [stderr] 21 |             ResponseMetrics { total: total, error: error, success: total - error }
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: replace it with: `total`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:21:45
[INFO] [stderr]    |
[INFO] [stderr] 21 |             ResponseMetrics { total: total, error: error, success: total - error }
[INFO] [stderr]    |                                             ^^^^^^^^^^^^ help: replace it with: `error`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:28:39
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     ResponseMetrics { total: total, error: 0, success: total}
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: replace it with: `total`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:49:31
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ResponseMetrics { total: total, error: fail + error, success: success }
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: replace it with: `total`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lang_test/parser.rs:49:66
[INFO] [stderr]    |
[INFO] [stderr] 49 |             ResponseMetrics { total: total, error: fail + error, success: success }
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^^^^^ help: replace it with: `success`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/lang_test/lang.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/user/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     return result;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mkdir`
[INFO] [stderr]  --> src/user/mod.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mkdir = 
[INFO] [stderr]   |         ^^^^^ help: consider using `_mkdir` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]   --> src/lang_test/lang.rs:64:40
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn run_test(&self, solution: &str, version: i8) -> String {
[INFO] [stderr]    |                                        ^^^^^^^ help: consider using `_version` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]  --> src/lang_test/lang.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::env;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/user/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     return result;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lang_test/lang.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         echo(solution, &Path::new(&format!("{}/solution.py", &to)));
[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: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/lang_test/lang.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 | /             Command::new(&cmd)
[INFO] [stderr] 49 | |                .arg(&to)
[INFO] [stderr] 50 | |                .output()
[INFO] [stderr] 51 | |                .ok()
[INFO] [stderr] 52 | |                .expect("cat error to start");
[INFO] [stderr]    | |____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lang_test/lang.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         echo(solution, &Path::new(&format!("{}/src/main/scala/org/sparktw/codefight/Solution.scala", &to)));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/lang_test/lang.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 | /             Command::new("sbt")
[INFO] [stderr] 76 | |                .current_dir(&path)
[INFO] [stderr] 77 | |                .arg("test")
[INFO] [stderr] 78 | |                .output()
[INFO] [stderr] 79 | |                .ok()
[INFO] [stderr] 80 | |                .expect("cat error to start");
[INFO] [stderr]    | |____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/user/mod.rs:9:9
[INFO] [stderr]    |
[INFO] [stderr] 9  | /         Command::new("mkdir")
[INFO] [stderr] 10 | |             .arg("-p")
[INFO] [stderr] 11 | |             .arg(&copy_to)
[INFO] [stderr] 12 | |             .output()
[INFO] [stderr] 13 | |             .ok()
[INFO] [stderr] 14 | |             .expect("cat error to start");
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/user/mod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | /         Command::new("cp")
[INFO] [stderr] 18 | |             .arg("-r")
[INFO] [stderr] 19 | |             .arg("-f")
[INFO] [stderr] 20 | |             .arg(&copy_from)
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |             .ok()
[INFO] [stderr] 24 | |             .expect("cat error to start");
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:72:109
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0 => SubjectTestResponsePayload { response_code: 0, response_message: "pass".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.user.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:72:145
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0 => SubjectTestResponsePayload { response_code: 0, response_message: "pass".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.subject.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:72:185
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0 => SubjectTestResponsePayload { response_code: 0, response_message: "pass".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.language.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:74:119
[INFO] [stderr]    |
[INFO] [stderr] 74 |             127 => SubjectTestResponsePayload { response_code: 1, response_message: "syntax error".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.user.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:74:155
[INFO] [stderr]    |
[INFO] [stderr] 74 |             127 => SubjectTestResponsePayload { response_code: 1, response_message: "syntax error".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.subject.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:74:195
[INFO] [stderr]    |
[INFO] [stderr] 74 |             127 => SubjectTestResponsePayload { response_code: 1, response_message: "syntax error".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.language.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:76:109
[INFO] [stderr]    |
[INFO] [stderr] 76 |             _ => SubjectTestResponsePayload { response_code: 2, response_message: "fail".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc }
[INFO] [stderr]    |                                                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.user.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:76:145
[INFO] [stderr]    |
[INFO] [stderr] 76 |             _ => SubjectTestResponsePayload { response_code: 2, response_message: "fail".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc }
[INFO] [stderr]    |                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.subject.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:76:185
[INFO] [stderr]    |
[INFO] [stderr] 76 |             _ => SubjectTestResponsePayload { response_code: 2, response_message: "fail".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc }
[INFO] [stderr]    |                                                                                                                                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.language.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mkdir`
[INFO] [stderr]  --> src/user/mod.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mkdir = 
[INFO] [stderr]   |         ^^^^^ help: consider using `_mkdir` instead
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]   --> src/lang_test/lang.rs:64:40
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn run_test(&self, solution: &str, version: i8) -> String {
[INFO] [stderr]    |                                        ^^^^^^^ help: consider using `_version` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lang_test/lang.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         echo(solution, &Path::new(&format!("{}/solution.py", &to)));
[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: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/lang_test/lang.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 | /             Command::new(&cmd)
[INFO] [stderr] 49 | |                .arg(&to)
[INFO] [stderr] 50 | |                .output()
[INFO] [stderr] 51 | |                .ok()
[INFO] [stderr] 52 | |                .expect("cat error to start");
[INFO] [stderr]    | |____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lang_test/lang.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         echo(solution, &Path::new(&format!("{}/src/main/scala/org/sparktw/codefight/Solution.scala", &to)));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/lang_test/lang.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 | /             Command::new("sbt")
[INFO] [stderr] 76 | |                .current_dir(&path)
[INFO] [stderr] 77 | |                .arg("test")
[INFO] [stderr] 78 | |                .output()
[INFO] [stderr] 79 | |                .ok()
[INFO] [stderr] 80 | |                .expect("cat error to start");
[INFO] [stderr]    | |____________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/user/mod.rs:9:9
[INFO] [stderr]    |
[INFO] [stderr] 9  | /         Command::new("mkdir")
[INFO] [stderr] 10 | |             .arg("-p")
[INFO] [stderr] 11 | |             .arg(&copy_to)
[INFO] [stderr] 12 | |             .output()
[INFO] [stderr] 13 | |             .ok()
[INFO] [stderr] 14 | |             .expect("cat error to start");
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/user/mod.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | /         Command::new("cp")
[INFO] [stderr] 18 | |             .arg("-r")
[INFO] [stderr] 19 | |             .arg("-f")
[INFO] [stderr] 20 | |             .arg(&copy_from)
[INFO] [stderr] ...  |
[INFO] [stderr] 23 | |             .ok()
[INFO] [stderr] 24 | |             .expect("cat error to start");
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:72:109
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0 => SubjectTestResponsePayload { response_code: 0, response_message: "pass".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.user.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:72:145
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0 => SubjectTestResponsePayload { response_code: 0, response_message: "pass".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.subject.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:72:185
[INFO] [stderr]    |
[INFO] [stderr] 72 |             0 => SubjectTestResponsePayload { response_code: 0, response_message: "pass".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.language.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:74:119
[INFO] [stderr]    |
[INFO] [stderr] 74 |             127 => SubjectTestResponsePayload { response_code: 1, response_message: "syntax error".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.user.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:74:155
[INFO] [stderr]    |
[INFO] [stderr] 74 |             127 => SubjectTestResponsePayload { response_code: 1, response_message: "syntax error".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.subject.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:74:195
[INFO] [stderr]    |
[INFO] [stderr] 74 |             127 => SubjectTestResponsePayload { response_code: 1, response_message: "syntax error".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc },
[INFO] [stderr]    |                                                                                                                                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.language.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:76:109
[INFO] [stderr]    |
[INFO] [stderr] 76 |             _ => SubjectTestResponsePayload { response_code: 2, response_message: "fail".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc }
[INFO] [stderr]    |                                                                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.user.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:76:145
[INFO] [stderr]    |
[INFO] [stderr] 76 |             _ => SubjectTestResponsePayload { response_code: 2, response_message: "fail".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc }
[INFO] [stderr]    |                                                                                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.subject.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:76:185
[INFO] [stderr]    |
[INFO] [stderr] 76 |             _ => SubjectTestResponsePayload { response_code: 2, response_message: "fail".to_string(), user: format!("{}", &body.user), subject: format!("{}", &body.subject), language: format!("{}", &body.language), metrics: Some(response_msg), timestamp: now_utc }
[INFO] [stderr]    |                                                                                                                                                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `&body.language.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.23s
[INFO] running `"docker" "inspect" "27b51bd375966b45aff9877651ced5edd8055e8e1405c37206cac8a7184a88fb"`
[INFO] running `"docker" "rm" "-f" "27b51bd375966b45aff9877651ced5edd8055e8e1405c37206cac8a7184a88fb"`
[INFO] [stdout] 27b51bd375966b45aff9877651ced5edd8055e8e1405c37206cac8a7184a88fb