[INFO] updating cached repository https://github.com/Vinatorul/RustyChecker
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6c466e7a1e8b2bd9c5565c1953970ec5249d55fc
[INFO] checking Vinatorul/RustyChecker against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVinatorul%2FRustyChecker" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vinatorul/RustyChecker on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Vinatorul/RustyChecker
[INFO] finished tweaking git repo https://github.com/Vinatorul/RustyChecker
[INFO] tweaked toml for git repo https://github.com/Vinatorul/RustyChecker written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Vinatorul/RustyChecker already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f069e0b73aa711a426f78704f499f2acd2fdbad346a1520726c7783521ddd48f
[INFO] running `"docker" "start" "-a" "f069e0b73aa711a426f78704f499f2acd2fdbad346a1520726c7783521ddd48f"`
[INFO] [stderr]     Checking rusty_checker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: private type `problem::ProblemError` in public interface (error E0446)
[INFO] [stderr]    --> src/problem.rs:103:2
[INFO] [stderr]     |
[INFO] [stderr] 103 |       pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stderr]     |  _____^
[INFO] [stderr] 104 | |         let builder = match Command::new("rustc")
[INFO] [stderr] 105 | |             .arg(format!("{}/{}/{}.rs", PROBLEMS_DIR, self.str_id, self.str_id))
[INFO] [stderr] 106 | |             .arg("--out-dir")
[INFO] [stderr] ...   |
[INFO] [stderr] 117 | |         return self.run_test(1);
[INFO] [stderr] 118 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[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!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `problem::ProblemError` in public interface (error E0446)
[INFO] [stderr]    --> src/problem.rs:103:2
[INFO] [stderr]     |
[INFO] [stderr] 103 |       pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stderr]     |  _____^
[INFO] [stderr] 104 | |         let builder = match Command::new("rustc")
[INFO] [stderr] 105 | |             .arg(format!("{}/{}/{}.rs", PROBLEMS_DIR, self.str_id, self.str_id))
[INFO] [stderr] 106 | |             .arg("--out-dir")
[INFO] [stderr] ...   |
[INFO] [stderr] 117 | |         return self.run_test(1);
[INFO] [stderr] 118 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(private_in_public)]` on by default
[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!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PROBLEMS_DIR`
[INFO] [stderr]   --> src/problem.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const PROBLEMS_DIR: &'static str = "problems";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `INPUT_DIR`
[INFO] [stderr]   --> src/problem.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const INPUT_DIR: &'static str = "input";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `OUTPUT_DIR`
[INFO] [stderr]   --> src/problem.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const OUTPUT_DIR: &'static str = "output";
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Problem`
[INFO] [stderr]   --> src/problem.rs:14:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub struct Problem {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `State`
[INFO] [stderr]   --> src/problem.rs:21:6
[INFO] [stderr]    |
[INFO] [stderr] 21 | enum State {
[INFO] [stderr]    |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/problem.rs:68:2
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn new(str_id: String) -> Problem {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run`
[INFO] [stderr]    --> src/problem.rs:103:2
[INFO] [stderr]     |
[INFO] [stderr] 103 |     pub fn run(&self) -> Result<(), ProblemError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `run_test`
[INFO] [stderr]    --> src/problem.rs:120:2
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn run_test(&self, test_no: i32) -> Result<(), ProblemError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `make_error`
[INFO] [stderr]    --> src/problem.rs:169:2
[INFO] [stderr]     |
[INFO] [stderr] 169 |     fn make_error(&self, reason: &'static str, sys_part: String, test_no: i32) -> Result<(), ProblemError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "f069e0b73aa711a426f78704f499f2acd2fdbad346a1520726c7783521ddd48f"`
[INFO] running `"docker" "rm" "-f" "f069e0b73aa711a426f78704f499f2acd2fdbad346a1520726c7783521ddd48f"`
[INFO] [stdout] f069e0b73aa711a426f78704f499f2acd2fdbad346a1520726c7783521ddd48f