Dec 18 06:48:23.545 INFO checking LarryLo/spark_submit_helper against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 06:48:23.546 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:48:23.992 INFO [stdout] e9092cdbb83881d3c4db0dc05be490a7265d5740d3cbc53b79a3c460df4eaae2
Dec 18 06:48:23.998 INFO running `"docker" "start" "-a" "e9092cdbb83881d3c4db0dc05be490a7265d5740d3cbc53b79a3c460df4eaae2"`
Dec 18 06:48:24.861 INFO [stderr]     Checking hyper v0.10.12
Dec 18 06:48:28.227 INFO [stderr]     Checking iron v0.5.1
Dec 18 06:48:28.964 INFO [stderr]     Checking router v0.5.1
Dec 18 06:48:29.451 INFO [stderr]     Checking spark_submit_helper v1.0.0 (/opt/crater/workdir)
Dec 18 06:48:30.004 INFO [stderr] warning: unused import: `std::env`
Dec 18 06:48:30.004 INFO [stderr]  --> src/lang_test/lang.rs:6:5
Dec 18 06:48:30.004 INFO [stderr]   |
Dec 18 06:48:30.004 INFO [stderr] 6 | use std::env;
Dec 18 06:48:30.004 INFO [stderr]   |     ^^^^^^^^
Dec 18 06:48:30.004 INFO [stderr]   |
Dec 18 06:48:30.004 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:48:30.004 INFO [stderr] 
Dec 18 06:48:30.020 INFO [stderr] warning: unused import: `std::env`
Dec 18 06:48:30.020 INFO [stderr]  --> src/lang_test/lang.rs:6:5
Dec 18 06:48:30.020 INFO [stderr]   |
Dec 18 06:48:30.020 INFO [stderr] 6 | use std::env;
Dec 18 06:48:30.020 INFO [stderr]   |     ^^^^^^^^
Dec 18 06:48:30.020 INFO [stderr]   |
Dec 18 06:48:30.020 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:48:30.020 INFO [stderr] 
Dec 18 06:48:30.160 INFO [stderr] warning: unused variable: `mkdir`
Dec 18 06:48:30.161 INFO [stderr]  --> src/user/mod.rs:8:9
Dec 18 06:48:30.161 INFO [stderr]   |
Dec 18 06:48:30.161 INFO [stderr] 8 |     let mkdir = 
Dec 18 06:48:30.161 INFO [stderr]   |         ^^^^^ help: consider using `_mkdir` instead
Dec 18 06:48:30.161 INFO [stderr]   |
Dec 18 06:48:30.161 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 06:48:30.161 INFO [stderr] 
Dec 18 06:48:30.161 INFO [stderr] warning: unused variable: `version`
Dec 18 06:48:30.161 INFO [stderr]   --> src/lang_test/lang.rs:64:40
Dec 18 06:48:30.161 INFO [stderr]    |
Dec 18 06:48:30.161 INFO [stderr] 64 |     fn run_test(&self, solution: &str, version: i8) -> String {
Dec 18 06:48:30.161 INFO [stderr]    |                                        ^^^^^^^ help: consider using `_version` instead
Dec 18 06:48:30.161 INFO [stderr] 
Dec 18 06:48:30.176 INFO [stderr] warning: unused variable: `mkdir`
Dec 18 06:48:30.176 INFO [stderr]  --> src/user/mod.rs:8:9
Dec 18 06:48:30.176 INFO [stderr]   |
Dec 18 06:48:30.176 INFO [stderr] 8 |     let mkdir = 
Dec 18 06:48:30.176 INFO [stderr]   |         ^^^^^ help: consider using `_mkdir` instead
Dec 18 06:48:30.176 INFO [stderr]   |
Dec 18 06:48:30.176 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 18 06:48:30.176 INFO [stderr] 
Dec 18 06:48:30.176 INFO [stderr] warning: unused variable: `version`
Dec 18 06:48:30.176 INFO [stderr]   --> src/lang_test/lang.rs:64:40
Dec 18 06:48:30.176 INFO [stderr]    |
Dec 18 06:48:30.176 INFO [stderr] 64 |     fn run_test(&self, solution: &str, version: i8) -> String {
Dec 18 06:48:30.176 INFO [stderr]    |                                        ^^^^^^^ help: consider using `_version` instead
Dec 18 06:48:30.176 INFO [stderr] 
Dec 18 06:48:30.212 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:48:30.212 INFO [stderr]   --> src/lang_test/lang.rs:39:9
Dec 18 06:48:30.212 INFO [stderr]    |
Dec 18 06:48:30.212 INFO [stderr] 39 |         echo(solution, &Path::new(&format!("{}/solution.py", &to)));
Dec 18 06:48:30.212 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:48:30.212 INFO [stderr]    |
Dec 18 06:48:30.212 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:48:30.212 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:48:30.212 INFO [stderr] 
Dec 18 06:48:30.213 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:48:30.213 INFO [stderr]   --> src/lang_test/lang.rs:69:9
Dec 18 06:48:30.213 INFO [stderr]    |
Dec 18 06:48:30.213 INFO [stderr] 69 |         echo(solution, &Path::new(&format!("{}/src/main/scala/org/sparktw/codefight/Solution.scala", &to)));
Dec 18 06:48:30.213 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:48:30.213 INFO [stderr]    |
Dec 18 06:48:30.213 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:48:30.213 INFO [stderr] 
Dec 18 06:48:30.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:48:30.240 INFO [stderr]   --> src/lang_test/lang.rs:39:9
Dec 18 06:48:30.240 INFO [stderr]    |
Dec 18 06:48:30.240 INFO [stderr] 39 |         echo(solution, &Path::new(&format!("{}/solution.py", &to)));
Dec 18 06:48:30.240 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:48:30.240 INFO [stderr]    |
Dec 18 06:48:30.240 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 06:48:30.240 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:48:30.240 INFO [stderr] 
Dec 18 06:48:30.240 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:48:30.240 INFO [stderr]   --> src/lang_test/lang.rs:69:9
Dec 18 06:48:30.240 INFO [stderr]    |
Dec 18 06:48:30.240 INFO [stderr] 69 |         echo(solution, &Path::new(&format!("{}/src/main/scala/org/sparktw/codefight/Solution.scala", &to)));
Dec 18 06:48:30.240 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:48:30.240 INFO [stderr]    |
Dec 18 06:48:30.240 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:48:30.240 INFO [stderr] 
Dec 18 06:48:30.263 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.50s
Dec 18 06:48:30.650 INFO running `"docker" "inspect" "e9092cdbb83881d3c4db0dc05be490a7265d5740d3cbc53b79a3c460df4eaae2"`
Dec 18 06:48:30.776 INFO running `"docker" "rm" "-f" "e9092cdbb83881d3c4db0dc05be490a7265d5740d3cbc53b79a3c460df4eaae2"`
Dec 18 06:48:30.976 INFO [stdout] e9092cdbb83881d3c4db0dc05be490a7265d5740d3cbc53b79a3c460df4eaae2