Dec 06 11:16:43.373 INFO testing NikitaSmall/rust_rpn against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 11:16:43.373 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 11:16:43.704 INFO [stdout] bb665f5f5fabf9de567b3c74367d136609db4bbcd17e965bfe08b9c066d2bd38
Dec 06 11:16:43.706 INFO running `"docker" "start" "-a" "bb665f5f5fabf9de567b3c74367d136609db4bbcd17e965bfe08b9c066d2bd38"`
Dec 06 11:16:44.240 INFO [stderr] usermod: no changes
Dec 06 11:16:44.267 INFO [stderr]    Compiling rpn v0.1.0 (/source)
Dec 06 11:16:44.700 INFO [stderr] warning: field is never used: `raw`
Dec 06 11:16:44.700 INFO [stderr]   --> src/converter.rs:10:5
Dec 06 11:16:44.700 INFO [stderr]    |
Dec 06 11:16:44.700 INFO [stderr] 10 |     raw: String,
Dec 06 11:16:44.700 INFO [stderr]    |     ^^^^^^^^^^^
Dec 06 11:16:44.700 INFO [stderr]    |
Dec 06 11:16:44.700 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 11:16:44.700 INFO [stderr] 
Dec 06 11:16:44.700 INFO [stderr] warning: field is never used: `prededence`
Dec 06 11:16:44.700 INFO [stderr]   --> src/converter.rs:12:5
Dec 06 11:16:44.700 INFO [stderr]    |
Dec 06 11:16:44.700 INFO [stderr] 12 |     prededence: HashMap<Stackable, i8>,
Dec 06 11:16:44.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 11:16:44.700 INFO [stderr] 
Dec 06 11:16:44.700 INFO [stderr] warning: method is never used: `convert`
Dec 06 11:16:44.700 INFO [stderr]   --> src/converter.rs:16:5
Dec 06 11:16:44.700 INFO [stderr]    |
Dec 06 11:16:44.700 INFO [stderr] 16 |     pub fn convert(raw: String) -> Converter {
Dec 06 11:16:44.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 11:16:44.700 INFO [stderr] 
Dec 06 11:16:44.700 INFO [stderr] warning: method is never used: `process`
Dec 06 11:16:44.700 INFO [stderr]   --> src/converter.rs:33:5
Dec 06 11:16:44.700 INFO [stderr]    |
Dec 06 11:16:44.700 INFO [stderr] 33 |     fn process(&mut self) {
Dec 06 11:16:44.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 06 11:16:44.700 INFO [stderr] 
Dec 06 11:16:45.713 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
Dec 06 11:16:45.715 INFO [stderr] su: No module specific data is present
Dec 06 11:16:46.375 INFO running `"docker" "inspect" "bb665f5f5fabf9de567b3c74367d136609db4bbcd17e965bfe08b9c066d2bd38"`
Dec 06 11:16:46.584 INFO running `"docker" "rm" "-f" "bb665f5f5fabf9de567b3c74367d136609db4bbcd17e965bfe08b9c066d2bd38"`
Dec 06 11:16:46.768 INFO [stdout] bb665f5f5fabf9de567b3c74367d136609db4bbcd17e965bfe08b9c066d2bd38
Dec 06 11:16:46.774 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 06 11:16:47.141 INFO [stdout] f2881d1f880226139d27870ec1fc15b1336395f63e729abc10033a8d76902618
Dec 06 11:16:47.143 INFO running `"docker" "start" "-a" "f2881d1f880226139d27870ec1fc15b1336395f63e729abc10033a8d76902618"`
Dec 06 11:16:48.350 INFO [stderr] usermod: no changes
Dec 06 11:16:48.392 INFO [stderr]    Compiling rpn v0.1.0 (/source)
Dec 06 11:16:49.044 INFO [stderr] warning: variable does not need to be mutable
Dec 06 11:16:49.044 INFO [stderr]   --> src/converter.rs:95:13
Dec 06 11:16:49.044 INFO [stderr]    |
Dec 06 11:16:49.044 INFO [stderr] 95 |         let mut converter = Converter::convert(example_string);
Dec 06 11:16:49.044 INFO [stderr]    |             ----^^^^^^^^^
Dec 06 11:16:49.044 INFO [stderr]    |             |
Dec 06 11:16:49.044 INFO [stderr]    |             help: remove this `mut`
Dec 06 11:16:49.044 INFO [stderr]    |
Dec 06 11:16:49.044 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 06 11:16:49.044 INFO [stderr] 
Dec 06 11:16:49.044 INFO [stderr] warning: variable does not need to be mutable
Dec 06 11:16:49.044 INFO [stderr]    --> src/converter.rs:103:13
Dec 06 11:16:49.044 INFO [stderr]     |
Dec 06 11:16:49.044 INFO [stderr] 103 |         let mut converter = Converter::convert(example_string);
Dec 06 11:16:49.044 INFO [stderr]     |             ----^^^^^^^^^
Dec 06 11:16:49.044 INFO [stderr]     |             |
Dec 06 11:16:49.044 INFO [stderr]     |             help: remove this `mut`
Dec 06 11:16:49.044 INFO [stderr] 
Dec 06 11:16:50.246 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
Dec 06 11:16:50.250 INFO [stderr] su: No module specific data is present
Dec 06 11:16:50.761 INFO running `"docker" "inspect" "f2881d1f880226139d27870ec1fc15b1336395f63e729abc10033a8d76902618"`
Dec 06 11:16:50.868 INFO running `"docker" "rm" "-f" "f2881d1f880226139d27870ec1fc15b1336395f63e729abc10033a8d76902618"`
Dec 06 11:16:51.040 INFO [stdout] f2881d1f880226139d27870ec1fc15b1336395f63e729abc10033a8d76902618