Nov 02 20:20:49.020 INFO checking NikitaSmall/rust_rpn against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 02 20:20:49.020 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-4/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-alt check --frozen --all --all-targets" "-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"`
Nov 02 20:20:49.232 INFO blam! 9c1fbf7c94a571f1baad9b985ca2b24b2cbba99a2dd0ab4846c31d8c319966fd
Nov 02 20:20:49.232 INFO running `"docker" "start" "-a" "9c1fbf7c94a571f1baad9b985ca2b24b2cbba99a2dd0ab4846c31d8c319966fd"`
Nov 02 20:20:50.225 INFO kablam! usermod: no changes
Nov 02 20:20:50.312 INFO kablam!     Checking rpn v0.1.0 (/source)
Nov 02 20:20:51.172 INFO kablam! warning: field is never used: `raw`
Nov 02 20:20:51.172 INFO kablam!   --> src/converter.rs:10:5
Nov 02 20:20:51.172 INFO kablam!    |
Nov 02 20:20:51.172 INFO kablam! 10 |     raw: String,
Nov 02 20:20:51.172 INFO kablam!    |     ^^^^^^^^^^^
Nov 02 20:20:51.172 INFO kablam!    |
Nov 02 20:20:51.172 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 02 20:20:51.172 INFO kablam! 
Nov 02 20:20:51.172 INFO kablam! warning: field is never used: `prededence`
Nov 02 20:20:51.172 INFO kablam!   --> src/converter.rs:12:5
Nov 02 20:20:51.172 INFO kablam!    |
Nov 02 20:20:51.172 INFO kablam! 12 |     prededence: HashMap<Stackable, i8>,
Nov 02 20:20:51.172 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 20:20:51.172 INFO kablam! 
Nov 02 20:20:51.172 INFO kablam! warning: method is never used: `convert`
Nov 02 20:20:51.172 INFO kablam!   --> src/converter.rs:16:5
Nov 02 20:20:51.172 INFO kablam!    |
Nov 02 20:20:51.172 INFO kablam! 16 |     pub fn convert(raw: String) -> Converter {
Nov 02 20:20:51.172 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 20:20:51.172 INFO kablam! 
Nov 02 20:20:51.172 INFO kablam! warning: method is never used: `process`
Nov 02 20:20:51.172 INFO kablam!   --> src/converter.rs:33:5
Nov 02 20:20:51.172 INFO kablam!    |
Nov 02 20:20:51.172 INFO kablam! 33 |     fn process(&mut self) {
Nov 02 20:20:51.172 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 02 20:20:51.172 INFO kablam! 
Nov 02 20:20:51.348 INFO kablam! warning: variable does not need to be mutable
Nov 02 20:20:51.348 INFO kablam!   --> src/converter.rs:95:13
Nov 02 20:20:51.348 INFO kablam!    |
Nov 02 20:20:51.348 INFO kablam! 95 |         let mut converter = Converter::convert(example_string);
Nov 02 20:20:51.348 INFO kablam!    |             ----^^^^^^^^^
Nov 02 20:20:51.348 INFO kablam!    |             |
Nov 02 20:20:51.348 INFO kablam!    |             help: remove this `mut`
Nov 02 20:20:51.348 INFO kablam!    |
Nov 02 20:20:51.348 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 02 20:20:51.348 INFO kablam! 
Nov 02 20:20:51.350 INFO kablam! warning: variable does not need to be mutable
Nov 02 20:20:51.350 INFO kablam!    --> src/converter.rs:103:13
Nov 02 20:20:51.350 INFO kablam!     |
Nov 02 20:20:51.350 INFO kablam! 103 |         let mut converter = Converter::convert(example_string);
Nov 02 20:20:51.350 INFO kablam!     |             ----^^^^^^^^^
Nov 02 20:20:51.350 INFO kablam!     |             |
Nov 02 20:20:51.350 INFO kablam!     |             help: remove this `mut`
Nov 02 20:20:51.350 INFO kablam! 
Nov 02 20:20:51.980 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
Nov 02 20:20:51.983 INFO kablam! su: No module specific data is present
Nov 02 20:20:52.892 INFO running `"docker" "rm" "-f" "9c1fbf7c94a571f1baad9b985ca2b24b2cbba99a2dd0ab4846c31d8c319966fd"`
Nov 02 20:20:53.184 INFO blam! 9c1fbf7c94a571f1baad9b985ca2b24b2cbba99a2dd0ab4846c31d8c319966fd