Dec 14 07:28:13.440 INFO testing NikitaSmall/rust_rpn against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 07:28:13.440 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 07:28:13.794 INFO [stdout] cf827bae9db4d5664a07477c27b1410c23f9b9d69733f351594566f6b22144e8
Dec 14 07:28:13.797 INFO running `"docker" "start" "-a" "cf827bae9db4d5664a07477c27b1410c23f9b9d69733f351594566f6b22144e8"`
Dec 14 07:28:14.369 INFO [stderr] usermod: no changes
Dec 14 07:28:14.403 INFO [stderr]    Compiling rpn v0.1.0 (/source)
Dec 14 07:28:14.903 INFO [stderr] warning: field is never used: `raw`
Dec 14 07:28:14.903 INFO [stderr]   --> src/converter.rs:10:5
Dec 14 07:28:14.903 INFO [stderr]    |
Dec 14 07:28:14.903 INFO [stderr] 10 |     raw: String,
Dec 14 07:28:14.903 INFO [stderr]    |     ^^^^^^^^^^^
Dec 14 07:28:14.903 INFO [stderr]    |
Dec 14 07:28:14.903 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 14 07:28:14.903 INFO [stderr] 
Dec 14 07:28:14.903 INFO [stderr] warning: field is never used: `prededence`
Dec 14 07:28:14.903 INFO [stderr]   --> src/converter.rs:12:5
Dec 14 07:28:14.903 INFO [stderr]    |
Dec 14 07:28:14.903 INFO [stderr] 12 |     prededence: HashMap<Stackable, i8>,
Dec 14 07:28:14.903 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:28:14.903 INFO [stderr] 
Dec 14 07:28:14.903 INFO [stderr] warning: method is never used: `convert`
Dec 14 07:28:14.903 INFO [stderr]   --> src/converter.rs:16:5
Dec 14 07:28:14.903 INFO [stderr]    |
Dec 14 07:28:14.903 INFO [stderr] 16 |     pub fn convert(raw: String) -> Converter {
Dec 14 07:28:14.903 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:28:14.903 INFO [stderr] 
Dec 14 07:28:14.903 INFO [stderr] warning: method is never used: `process`
Dec 14 07:28:14.903 INFO [stderr]   --> src/converter.rs:33:5
Dec 14 07:28:14.903 INFO [stderr]    |
Dec 14 07:28:14.903 INFO [stderr] 33 |     fn process(&mut self) {
Dec 14 07:28:14.903 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 14 07:28:14.903 INFO [stderr] 
Dec 14 07:28:16.287 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
Dec 14 07:28:16.287 INFO [stderr] su: No module specific data is present
Dec 14 07:28:16.964 INFO running `"docker" "inspect" "cf827bae9db4d5664a07477c27b1410c23f9b9d69733f351594566f6b22144e8"`
Dec 14 07:28:17.279 INFO running `"docker" "rm" "-f" "cf827bae9db4d5664a07477c27b1410c23f9b9d69733f351594566f6b22144e8"`
Dec 14 07:28:17.615 INFO [stdout] cf827bae9db4d5664a07477c27b1410c23f9b9d69733f351594566f6b22144e8
Dec 14 07:28:17.623 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 14 07:28:18.104 INFO [stdout] 27f24da5b7b13c9a94f4ae1c3b9e112ff42c37a8a495a08e121240970fe83f12
Dec 14 07:28:18.108 INFO running `"docker" "start" "-a" "27f24da5b7b13c9a94f4ae1c3b9e112ff42c37a8a495a08e121240970fe83f12"`
Dec 14 07:28:19.813 INFO [stderr] usermod: no changes
Dec 14 07:28:19.863 INFO [stderr]    Compiling rpn v0.1.0 (/source)
Dec 14 07:28:20.867 INFO [stderr] warning: variable does not need to be mutable
Dec 14 07:28:20.867 INFO [stderr]   --> src/converter.rs:95:13
Dec 14 07:28:20.867 INFO [stderr]    |
Dec 14 07:28:20.867 INFO [stderr] 95 |         let mut converter = Converter::convert(example_string);
Dec 14 07:28:20.867 INFO [stderr]    |             ----^^^^^^^^^
Dec 14 07:28:20.867 INFO [stderr]    |             |
Dec 14 07:28:20.867 INFO [stderr]    |             help: remove this `mut`
Dec 14 07:28:20.867 INFO [stderr]    |
Dec 14 07:28:20.867 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 07:28:20.867 INFO [stderr] 
Dec 14 07:28:20.871 INFO [stderr] warning: variable does not need to be mutable
Dec 14 07:28:20.871 INFO [stderr]    --> src/converter.rs:103:13
Dec 14 07:28:20.871 INFO [stderr]     |
Dec 14 07:28:20.871 INFO [stderr] 103 |         let mut converter = Converter::convert(example_string);
Dec 14 07:28:20.871 INFO [stderr]     |             ----^^^^^^^^^
Dec 14 07:28:20.871 INFO [stderr]     |             |
Dec 14 07:28:20.871 INFO [stderr]     |             help: remove this `mut`
Dec 14 07:28:20.871 INFO [stderr] 
Dec 14 07:28:22.619 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.78s
Dec 14 07:28:22.633 INFO [stderr] su: No module specific data is present
Dec 14 07:28:23.560 INFO running `"docker" "inspect" "27f24da5b7b13c9a94f4ae1c3b9e112ff42c37a8a495a08e121240970fe83f12"`
Dec 14 07:28:23.844 INFO running `"docker" "rm" "-f" "27f24da5b7b13c9a94f4ae1c3b9e112ff42c37a8a495a08e121240970fe83f12"`
Dec 14 07:28:24.107 INFO [stdout] 27f24da5b7b13c9a94f4ae1c3b9e112ff42c37a8a495a08e121240970fe83f12