Dec 19 21:25:56.066 INFO checking Vinatorul/RustyChecker against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:25:56.066 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/Vinatorul/RustyChecker:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:25:56.575 INFO [stdout] 42c4c4f82d9aeb9fb681377fbfa1f47db112247f3b86ee63251d144ba53935eb
Dec 19 21:25:56.578 INFO running `"docker" "start" "-a" "42c4c4f82d9aeb9fb681377fbfa1f47db112247f3b86ee63251d144ba53935eb"`
Dec 19 21:25:59.199 INFO [stderr]     Checking rusty_checker v0.1.0 (/opt/crater/workdir)
Dec 19 21:25:59.867 INFO [stderr] warning: private type `problem::ProblemError` in public interface (error E0446)
Dec 19 21:25:59.867 INFO [stderr]    --> src/problem.rs:103:2
Dec 19 21:25:59.867 INFO [stderr]     |
Dec 19 21:25:59.867 INFO [stderr] 103 |       pub fn run(&self) -> Result<(), ProblemError> {
Dec 19 21:25:59.867 INFO [stderr]     |  _____^
Dec 19 21:25:59.867 INFO [stderr] 104 | |         let builder = match Command::new("rustc")
Dec 19 21:25:59.867 INFO [stderr] 105 | |             .arg(format!("{}/{}/{}.rs", PROBLEMS_DIR, self.str_id, self.str_id))
Dec 19 21:25:59.867 INFO [stderr] 106 | |             .arg("--out-dir")
Dec 19 21:25:59.867 INFO [stderr] ...   |
Dec 19 21:25:59.867 INFO [stderr] 117 | |         return self.run_test(1);
Dec 19 21:25:59.867 INFO [stderr] 118 | |     }
Dec 19 21:25:59.867 INFO [stderr]     | |_____^
Dec 19 21:25:59.867 INFO [stderr]     |
Dec 19 21:25:59.867 INFO [stderr]     = note: #[warn(private_in_public)] on by default
Dec 19 21:25:59.867 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 21:25:59.867 INFO [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 21:25:59.867 INFO [stderr] 
Dec 19 21:25:59.912 INFO [stderr] warning: private type `problem::ProblemError` in public interface (error E0446)
Dec 19 21:25:59.913 INFO [stderr]    --> src/problem.rs:103:2
Dec 19 21:25:59.913 INFO [stderr]     |
Dec 19 21:25:59.913 INFO [stderr] 103 |       pub fn run(&self) -> Result<(), ProblemError> {
Dec 19 21:25:59.913 INFO [stderr]     |  _____^
Dec 19 21:25:59.913 INFO [stderr] 104 | |         let builder = match Command::new("rustc")
Dec 19 21:25:59.913 INFO [stderr] 105 | |             .arg(format!("{}/{}/{}.rs", PROBLEMS_DIR, self.str_id, self.str_id))
Dec 19 21:25:59.913 INFO [stderr] 106 | |             .arg("--out-dir")
Dec 19 21:25:59.913 INFO [stderr] ...   |
Dec 19 21:25:59.913 INFO [stderr] 117 | |         return self.run_test(1);
Dec 19 21:25:59.913 INFO [stderr] 118 | |     }
Dec 19 21:25:59.913 INFO [stderr]     | |_____^
Dec 19 21:25:59.913 INFO [stderr]     |
Dec 19 21:25:59.913 INFO [stderr]     = note: #[warn(private_in_public)] on by default
Dec 19 21:25:59.913 INFO [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 21:25:59.913 INFO [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 19 21:25:59.913 INFO [stderr] 
Dec 19 21:25:59.973 INFO [stderr] warning: constant item is never used: `PROBLEMS_DIR`
Dec 19 21:25:59.973 INFO [stderr]   --> src/problem.rs:10:1
Dec 19 21:25:59.973 INFO [stderr]    |
Dec 19 21:25:59.973 INFO [stderr] 10 | const PROBLEMS_DIR: &'static str = "problems";
Dec 19 21:25:59.973 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.973 INFO [stderr]    |
Dec 19 21:25:59.973 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 21:25:59.973 INFO [stderr] 
Dec 19 21:25:59.973 INFO [stderr] warning: constant item is never used: `INPUT_DIR`
Dec 19 21:25:59.973 INFO [stderr]   --> src/problem.rs:11:1
Dec 19 21:25:59.974 INFO [stderr]    |
Dec 19 21:25:59.974 INFO [stderr] 11 | const INPUT_DIR: &'static str = "input";
Dec 19 21:25:59.974 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.974 INFO [stderr] 
Dec 19 21:25:59.974 INFO [stderr] warning: constant item is never used: `OUTPUT_DIR`
Dec 19 21:25:59.974 INFO [stderr]   --> src/problem.rs:12:1
Dec 19 21:25:59.974 INFO [stderr]    |
Dec 19 21:25:59.974 INFO [stderr] 12 | const OUTPUT_DIR: &'static str = "output";
Dec 19 21:25:59.974 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.974 INFO [stderr] 
Dec 19 21:25:59.974 INFO [stderr] warning: struct is never constructed: `Problem`
Dec 19 21:25:59.974 INFO [stderr]   --> src/problem.rs:14:1
Dec 19 21:25:59.974 INFO [stderr]    |
Dec 19 21:25:59.974 INFO [stderr] 14 | pub struct Problem {
Dec 19 21:25:59.974 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.974 INFO [stderr] 
Dec 19 21:25:59.974 INFO [stderr] warning: enum is never used: `State`
Dec 19 21:25:59.974 INFO [stderr]   --> src/problem.rs:21:1
Dec 19 21:25:59.974 INFO [stderr]    |
Dec 19 21:25:59.974 INFO [stderr] 21 | enum State {
Dec 19 21:25:59.974 INFO [stderr]    | ^^^^^^^^^^
Dec 19 21:25:59.974 INFO [stderr] 
Dec 19 21:25:59.974 INFO [stderr] warning: struct is never constructed: `ProblemError`
Dec 19 21:25:59.974 INFO [stderr]   --> src/problem.rs:28:1
Dec 19 21:25:59.974 INFO [stderr]    |
Dec 19 21:25:59.974 INFO [stderr] 28 | struct ProblemError {
Dec 19 21:25:59.974 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.974 INFO [stderr] 
Dec 19 21:25:59.974 INFO [stderr] warning: method is never used: `new`
Dec 19 21:25:59.974 INFO [stderr]   --> src/problem.rs:68:2
Dec 19 21:25:59.974 INFO [stderr]    |
Dec 19 21:25:59.974 INFO [stderr] 68 |     pub fn new(str_id: String) -> Problem {
Dec 19 21:25:59.974 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.975 INFO [stderr] 
Dec 19 21:25:59.975 INFO [stderr] warning: method is never used: `run`
Dec 19 21:25:59.975 INFO [stderr]    --> src/problem.rs:103:2
Dec 19 21:25:59.975 INFO [stderr]     |
Dec 19 21:25:59.975 INFO [stderr] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
Dec 19 21:25:59.975 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.975 INFO [stderr] 
Dec 19 21:25:59.975 INFO [stderr] warning: method is never used: `run_test`
Dec 19 21:25:59.975 INFO [stderr]    --> src/problem.rs:120:2
Dec 19 21:25:59.975 INFO [stderr]     |
Dec 19 21:25:59.975 INFO [stderr] 120 |     fn run_test(&self, test_no: i32) -> Result<(), ProblemError> {
Dec 19 21:25:59.975 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.975 INFO [stderr] 
Dec 19 21:25:59.975 INFO [stderr] warning: method is never used: `make_error`
Dec 19 21:25:59.975 INFO [stderr]    --> src/problem.rs:169:2
Dec 19 21:25:59.975 INFO [stderr]     |
Dec 19 21:25:59.975 INFO [stderr] 169 |     fn make_error(&self, reason: &'static str, sys_part: String, test_no: i32) -> Result<(), ProblemError> {
Dec 19 21:25:59.976 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:25:59.976 INFO [stderr] 
Dec 19 21:26:00.053 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Dec 19 21:26:01.045 INFO running `"docker" "inspect" "42c4c4f82d9aeb9fb681377fbfa1f47db112247f3b86ee63251d144ba53935eb"`
Dec 19 21:26:01.244 INFO running `"docker" "rm" "-f" "42c4c4f82d9aeb9fb681377fbfa1f47db112247f3b86ee63251d144ba53935eb"`
Dec 19 21:26:01.440 INFO [stdout] 42c4c4f82d9aeb9fb681377fbfa1f47db112247f3b86ee63251d144ba53935eb