Dec 19 06:49:25.670 INFO checking tomvidm/rusty-cas against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:49:25.670 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/tomvidm/rusty-cas:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:49:26.200 INFO [stdout] 1bff97f8eacb304cba04d91ad9701ff8ac23bf7cb05fed5785d739964b8f2ca6
Dec 19 06:49:26.204 INFO running `"docker" "start" "-a" "1bff97f8eacb304cba04d91ad9701ff8ac23bf7cb05fed5785d739964b8f2ca6"`
Dec 19 06:49:28.764 INFO [stderr]     Checking sym v0.1.0 (/opt/crater/workdir)
Dec 19 06:49:29.078 INFO [stderr] warning: unused import: `std::io`
Dec 19 06:49:29.078 INFO [stderr]  --> src/lexer.rs:2:5
Dec 19 06:49:29.079 INFO [stderr]   |
Dec 19 06:49:29.079 INFO [stderr] 2 | use std::io;
Dec 19 06:49:29.079 INFO [stderr]   |     ^^^^^^^
Dec 19 06:49:29.080 INFO [stderr]   |
Dec 19 06:49:29.080 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 06:49:29.080 INFO [stderr] 
Dec 19 06:49:29.080 INFO [stderr] warning: unused import: `std::char`
Dec 19 06:49:29.081 INFO [stderr]  --> src/lexer.rs:3:5
Dec 19 06:49:29.081 INFO [stderr]   |
Dec 19 06:49:29.081 INFO [stderr] 3 | use std::char;
Dec 19 06:49:29.082 INFO [stderr]   |     ^^^^^^^^^
Dec 19 06:49:29.082 INFO [stderr] 
Dec 19 06:49:29.082 INFO [stderr] warning: unused import: `Term`
Dec 19 06:49:29.082 INFO [stderr]    --> src/lexer.rs:125:23
Dec 19 06:49:29.083 INFO [stderr]     |
Dec 19 06:49:29.083 INFO [stderr] 125 |     use self::Token::{Term, Operator};
Dec 19 06:49:29.083 INFO [stderr]     |                       ^^^^
Dec 19 06:49:29.083 INFO [stderr] 
Dec 19 06:49:29.084 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 19 06:49:29.084 INFO [stderr]    --> src/lexer.rs:126:27
Dec 19 06:49:29.084 INFO [stderr]     |
Dec 19 06:49:29.085 INFO [stderr] 126 |     use self::TermToken::{Number, VariableKey};
Dec 19 06:49:29.085 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 19 06:49:29.085 INFO [stderr] 
Dec 19 06:49:29.085 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 19 06:49:29.085 INFO [stderr]    --> src/lexer.rs:161:27
Dec 19 06:49:29.085 INFO [stderr]     |
Dec 19 06:49:29.085 INFO [stderr] 161 |     use self::TermToken::{Number, VariableKey};
Dec 19 06:49:29.085 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 19 06:49:29.085 INFO [stderr] 
Dec 19 06:49:29.085 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 06:49:29.085 INFO [stderr]    --> src/lexer.rs:241:25
Dec 19 06:49:29.085 INFO [stderr]     |
Dec 19 06:49:29.086 INFO [stderr] 241 |                         /// Push top operator to output
Dec 19 06:49:29.086 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.086 INFO [stderr]     |
Dec 19 06:49:29.086 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 19 06:49:29.086 INFO [stderr] 
Dec 19 06:49:29.099 INFO [stderr] warning: unused import: `std::io`
Dec 19 06:49:29.099 INFO [stderr]  --> src/lexer.rs:2:5
Dec 19 06:49:29.099 INFO [stderr]   |
Dec 19 06:49:29.099 INFO [stderr] 2 | use std::io;
Dec 19 06:49:29.099 INFO [stderr]   |     ^^^^^^^
Dec 19 06:49:29.099 INFO [stderr]   |
Dec 19 06:49:29.099 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 06:49:29.099 INFO [stderr] 
Dec 19 06:49:29.099 INFO [stderr] warning: unused import: `std::char`
Dec 19 06:49:29.100 INFO [stderr]  --> src/lexer.rs:3:5
Dec 19 06:49:29.100 INFO [stderr]   |
Dec 19 06:49:29.100 INFO [stderr] 3 | use std::char;
Dec 19 06:49:29.100 INFO [stderr]   |     ^^^^^^^^^
Dec 19 06:49:29.100 INFO [stderr] 
Dec 19 06:49:29.100 INFO [stderr] warning: unused import: `Term`
Dec 19 06:49:29.101 INFO [stderr]    --> src/lexer.rs:125:23
Dec 19 06:49:29.101 INFO [stderr]     |
Dec 19 06:49:29.101 INFO [stderr] 125 |     use self::Token::{Term, Operator};
Dec 19 06:49:29.101 INFO [stderr]     |                       ^^^^
Dec 19 06:49:29.101 INFO [stderr] 
Dec 19 06:49:29.101 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 19 06:49:29.102 INFO [stderr]    --> src/lexer.rs:126:27
Dec 19 06:49:29.102 INFO [stderr]     |
Dec 19 06:49:29.102 INFO [stderr] 126 |     use self::TermToken::{Number, VariableKey};
Dec 19 06:49:29.102 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 19 06:49:29.102 INFO [stderr] 
Dec 19 06:49:29.102 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 19 06:49:29.102 INFO [stderr]    --> src/lexer.rs:161:27
Dec 19 06:49:29.103 INFO [stderr]     |
Dec 19 06:49:29.103 INFO [stderr] 161 |     use self::TermToken::{Number, VariableKey};
Dec 19 06:49:29.103 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 19 06:49:29.103 INFO [stderr] 
Dec 19 06:49:29.103 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 06:49:29.103 INFO [stderr]    --> src/lexer.rs:241:25
Dec 19 06:49:29.103 INFO [stderr]     |
Dec 19 06:49:29.104 INFO [stderr] 241 |                         /// Push top operator to output
Dec 19 06:49:29.104 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.104 INFO [stderr]     |
Dec 19 06:49:29.104 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 19 06:49:29.104 INFO [stderr] 
Dec 19 06:49:29.104 INFO [stderr] warning: unused import: `Term`
Dec 19 06:49:29.104 INFO [stderr]    --> src/lexer.rs:268:23
Dec 19 06:49:29.105 INFO [stderr]     |
Dec 19 06:49:29.105 INFO [stderr] 268 |     use self::Token::{Term, Operator};
Dec 19 06:49:29.105 INFO [stderr]     |                       ^^^^
Dec 19 06:49:29.105 INFO [stderr] 
Dec 19 06:49:29.105 INFO [stderr] warning: unused import: `Number`
Dec 19 06:49:29.105 INFO [stderr]    --> src/lexer.rs:279:27
Dec 19 06:49:29.106 INFO [stderr]     |
Dec 19 06:49:29.106 INFO [stderr] 279 |     use self::TermToken::{Number, VariableKey};
Dec 19 06:49:29.106 INFO [stderr]     |                           ^^^^^^
Dec 19 06:49:29.106 INFO [stderr] 
Dec 19 06:49:29.106 INFO [stderr] warning: unused import: `Number`
Dec 19 06:49:29.106 INFO [stderr]    --> src/lexer.rs:299:27
Dec 19 06:49:29.107 INFO [stderr]     |
Dec 19 06:49:29.107 INFO [stderr] 299 |     use self::TermToken::{Number, VariableKey};
Dec 19 06:49:29.107 INFO [stderr]     |                           ^^^^^^
Dec 19 06:49:29.107 INFO [stderr] 
Dec 19 06:49:29.120 INFO [stderr] warning: unused import: `Number`
Dec 19 06:49:29.120 INFO [stderr]    --> src/lexer.rs:377:27
Dec 19 06:49:29.121 INFO [stderr]     |
Dec 19 06:49:29.121 INFO [stderr] 377 |     use self::TermToken::{Number, VariableKey};
Dec 19 06:49:29.121 INFO [stderr]     |                           ^^^^^^
Dec 19 06:49:29.121 INFO [stderr] 
Dec 19 06:49:29.496 INFO [stderr] warning: unreachable pattern
Dec 19 06:49:29.496 INFO [stderr]    --> src/symexpr_rc.rs:212:13
Dec 19 06:49:29.496 INFO [stderr]     |
Dec 19 06:49:29.496 INFO [stderr] 212 |             _ => return None
Dec 19 06:49:29.496 INFO [stderr]     |             ^
Dec 19 06:49:29.496 INFO [stderr]     |
Dec 19 06:49:29.496 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 19 06:49:29.496 INFO [stderr] 
Dec 19 06:49:29.500 INFO [stderr] warning: unused variable: `ch`
Dec 19 06:49:29.500 INFO [stderr]    --> src/lexer.rs:128:9
Dec 19 06:49:29.500 INFO [stderr]     |
Dec 19 06:49:29.500 INFO [stderr] 128 |     for ch in slice.chars() {
Dec 19 06:49:29.500 INFO [stderr]     |         ^^ help: consider using `_ch` instead
Dec 19 06:49:29.500 INFO [stderr]     |
Dec 19 06:49:29.500 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.501 INFO [stderr] warning: unused variable: `i`
Dec 19 06:49:29.501 INFO [stderr]    --> src/lexer.rs:135:10
Dec 19 06:49:29.501 INFO [stderr]     |
Dec 19 06:49:29.501 INFO [stderr] 135 |     for (i, token) in tokens.iter().enumerate() {
Dec 19 06:49:29.501 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.501 INFO [stderr] warning: unused variable: `temp_number`
Dec 19 06:49:29.501 INFO [stderr]    --> src/lexer.rs:165:13
Dec 19 06:49:29.501 INFO [stderr]     |
Dec 19 06:49:29.501 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 19 06:49:29.501 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_temp_number` instead
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.501 INFO [stderr] warning: unused variable: `i`
Dec 19 06:49:29.501 INFO [stderr]    --> src/lexer.rs:166:10
Dec 19 06:49:29.501 INFO [stderr]     |
Dec 19 06:49:29.501 INFO [stderr] 166 |     for (i, ch) in string.chars().enumerate() {
Dec 19 06:49:29.501 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.501 INFO [stderr] warning: unused variable: `i`
Dec 19 06:49:29.501 INFO [stderr]    --> src/lexer.rs:207:10
Dec 19 06:49:29.501 INFO [stderr]     |
Dec 19 06:49:29.501 INFO [stderr] 207 |     for (i, token) in tokens.iter().enumerate() {
Dec 19 06:49:29.501 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.501 INFO [stderr] warning: unused variable: `string`
Dec 19 06:49:29.501 INFO [stderr]   --> src/cli.rs:21:16
Dec 19 06:49:29.501 INFO [stderr]    |
Dec 19 06:49:29.501 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 19 06:49:29.501 INFO [stderr]    |                ^^^^^^ help: consider using `_string` instead
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.501 INFO [stderr] warning: unused variable: `x`
Dec 19 06:49:29.501 INFO [stderr]   --> src/main.rs:13:13
Dec 19 06:49:29.501 INFO [stderr]    |
Dec 19 06:49:29.501 INFO [stderr] 13 |     for (i, x) in b.iter().enumerate() {
Dec 19 06:49:29.501 INFO [stderr]    |             ^ help: consider using `_x` instead
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.501 INFO [stderr] warning: value assigned to `postfixed_tokens` is never read
Dec 19 06:49:29.501 INFO [stderr]    --> src/symengine.rs:105:17
Dec 19 06:49:29.501 INFO [stderr]     |
Dec 19 06:49:29.501 INFO [stderr] 105 |         let mut postfixed_tokens: Vec<Token> = Vec::new();
Dec 19 06:49:29.501 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 19 06:49:29.501 INFO [stderr]     |
Dec 19 06:49:29.501 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 06:49:29.501 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 06:49:29.501 INFO [stderr] 
Dec 19 06:49:29.664 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:49:29.665 INFO [stderr]    --> src/lexer.rs:165:9
Dec 19 06:49:29.665 INFO [stderr]     |
Dec 19 06:49:29.665 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 19 06:49:29.665 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 19 06:49:29.665 INFO [stderr]     |         |
Dec 19 06:49:29.665 INFO [stderr]     |         help: remove this `mut`
Dec 19 06:49:29.665 INFO [stderr]     |
Dec 19 06:49:29.666 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:49:29.666 INFO [stderr] 
Dec 19 06:49:29.682 INFO [stderr] warning: method is never used: `eval_expr_with`
Dec 19 06:49:29.683 INFO [stderr]   --> src/symengine.rs:25:5
Dec 19 06:49:29.683 INFO [stderr]    |
Dec 19 06:49:29.683 INFO [stderr] 25 |     fn eval_expr_with(&self,key: &String, values: &Vec<Numeric>) -> Option<Numeric> {
Dec 19 06:49:29.683 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.683 INFO [stderr]    |
Dec 19 06:49:29.683 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 06:49:29.684 INFO [stderr] 
Dec 19 06:49:29.684 INFO [stderr] warning: method is never used: `get_variable`
Dec 19 06:49:29.684 INFO [stderr]   --> src/symengine.rs:39:5
Dec 19 06:49:29.684 INFO [stderr]    |
Dec 19 06:49:29.684 INFO [stderr] 39 |     fn get_variable(&self, key: &String) -> Option<Numeric> {
Dec 19 06:49:29.684 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.685 INFO [stderr] 
Dec 19 06:49:29.685 INFO [stderr] warning: function is never used: `tokenize_number`
Dec 19 06:49:29.685 INFO [stderr]    --> src/lexer.rs:124:1
Dec 19 06:49:29.685 INFO [stderr]     |
Dec 19 06:49:29.685 INFO [stderr] 124 | fn tokenize_number(slice: &str) -> Token {
Dec 19 06:49:29.685 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.686 INFO [stderr] 
Dec 19 06:49:29.686 INFO [stderr] warning: function is never used: `string_to_postfix`
Dec 19 06:49:29.686 INFO [stderr]    --> src/lexer.rs:261:1
Dec 19 06:49:29.686 INFO [stderr]     |
Dec 19 06:49:29.686 INFO [stderr] 261 | pub fn string_to_postfix(string: &String) -> Tokens {
Dec 19 06:49:29.686 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.686 INFO [stderr] 
Dec 19 06:49:29.687 INFO [stderr] warning: function is never used: `parse_input`
Dec 19 06:49:29.687 INFO [stderr]   --> src/cli.rs:21:1
Dec 19 06:49:29.687 INFO [stderr]    |
Dec 19 06:49:29.687 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 19 06:49:29.687 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.687 INFO [stderr] 
Dec 19 06:49:29.694 INFO [stderr] warning: constant `LeftP` should have an upper case name such as `LEFT_P`
Dec 19 06:49:29.694 INFO [stderr]    --> src/lexer.rs:101:1
Dec 19 06:49:29.694 INFO [stderr]     |
Dec 19 06:49:29.695 INFO [stderr] 101 | const LeftP: Operator = Operator{precedence: 1, op: OperatorType::LeftP};
Dec 19 06:49:29.695 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.695 INFO [stderr]     |
Dec 19 06:49:29.695 INFO [stderr]     = note: #[warn(non_upper_case_globals)] on by default
Dec 19 06:49:29.695 INFO [stderr] 
Dec 19 06:49:29.695 INFO [stderr] warning: constant `RightP` should have an upper case name such as `RIGHT_P`
Dec 19 06:49:29.696 INFO [stderr]    --> src/lexer.rs:102:1
Dec 19 06:49:29.696 INFO [stderr]     |
Dec 19 06:49:29.696 INFO [stderr] 102 | const RightP: Operator = Operator{precedence: 1, op: OperatorType::RightP};
Dec 19 06:49:29.696 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.696 INFO [stderr] 
Dec 19 06:49:29.696 INFO [stderr] warning: constant `Add` should have an upper case name such as `ADD`
Dec 19 06:49:29.696 INFO [stderr]    --> src/lexer.rs:103:1
Dec 19 06:49:29.697 INFO [stderr]     |
Dec 19 06:49:29.697 INFO [stderr] 103 | const Add: Operator = Operator{precedence: 2, op: OperatorType::Add};
Dec 19 06:49:29.697 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.697 INFO [stderr] 
Dec 19 06:49:29.697 INFO [stderr] warning: constant `Mul` should have an upper case name such as `MUL`
Dec 19 06:49:29.697 INFO [stderr]    --> src/lexer.rs:104:1
Dec 19 06:49:29.697 INFO [stderr]     |
Dec 19 06:49:29.698 INFO [stderr] 104 | const Mul: Operator = Operator{precedence: 4, op: OperatorType::Mul};
Dec 19 06:49:29.698 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.698 INFO [stderr] 
Dec 19 06:49:29.698 INFO [stderr] warning: constant `Assignment` should have an upper case name such as `ASSIGNMENT`
Dec 19 06:49:29.698 INFO [stderr]    --> src/lexer.rs:105:1
Dec 19 06:49:29.698 INFO [stderr]     |
Dec 19 06:49:29.699 INFO [stderr] 105 | const Assignment: Operator = Operator{precedence: 4, op: OperatorType::Assignment};
Dec 19 06:49:29.699 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.699 INFO [stderr] 
Dec 19 06:49:29.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:29.699 INFO [stderr]   --> src/cli.rs:46:5
Dec 19 06:49:29.700 INFO [stderr]    |
Dec 19 06:49:29.700 INFO [stderr] 46 |     io::stdout().flush();
Dec 19 06:49:29.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.700 INFO [stderr]    |
Dec 19 06:49:29.700 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 06:49:29.700 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:29.700 INFO [stderr] 
Dec 19 06:49:29.700 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:29.700 INFO [stderr]   --> src/cli.rs:47:5
Dec 19 06:49:29.700 INFO [stderr]    |
Dec 19 06:49:29.700 INFO [stderr] 47 |     io::stdin().read_line(&mut input);
Dec 19 06:49:29.700 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.700 INFO [stderr]    |
Dec 19 06:49:29.700 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:29.700 INFO [stderr] 
Dec 19 06:49:29.724 INFO [stderr] warning: unreachable pattern
Dec 19 06:49:29.724 INFO [stderr]    --> src/symexpr_rc.rs:212:13
Dec 19 06:49:29.724 INFO [stderr]     |
Dec 19 06:49:29.724 INFO [stderr] 212 |             _ => return None
Dec 19 06:49:29.724 INFO [stderr]     |             ^
Dec 19 06:49:29.724 INFO [stderr]     |
Dec 19 06:49:29.724 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 19 06:49:29.724 INFO [stderr] 
Dec 19 06:49:29.744 INFO [stderr] warning: unused variable: `ch`
Dec 19 06:49:29.744 INFO [stderr]    --> src/lexer.rs:128:9
Dec 19 06:49:29.744 INFO [stderr]     |
Dec 19 06:49:29.744 INFO [stderr] 128 |     for ch in slice.chars() {
Dec 19 06:49:29.744 INFO [stderr]     |         ^^ help: consider using `_ch` instead
Dec 19 06:49:29.744 INFO [stderr]     |
Dec 19 06:49:29.745 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 06:49:29.745 INFO [stderr] 
Dec 19 06:49:29.745 INFO [stderr] warning: unused variable: `i`
Dec 19 06:49:29.745 INFO [stderr]    --> src/lexer.rs:135:10
Dec 19 06:49:29.745 INFO [stderr]     |
Dec 19 06:49:29.745 INFO [stderr] 135 |     for (i, token) in tokens.iter().enumerate() {
Dec 19 06:49:29.745 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 19 06:49:29.745 INFO [stderr] 
Dec 19 06:49:29.745 INFO [stderr] warning: unused variable: `temp_number`
Dec 19 06:49:29.746 INFO [stderr]    --> src/lexer.rs:165:13
Dec 19 06:49:29.746 INFO [stderr]     |
Dec 19 06:49:29.746 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 19 06:49:29.746 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_temp_number` instead
Dec 19 06:49:29.746 INFO [stderr] 
Dec 19 06:49:29.746 INFO [stderr] warning: unused variable: `i`
Dec 19 06:49:29.746 INFO [stderr]    --> src/lexer.rs:166:10
Dec 19 06:49:29.746 INFO [stderr]     |
Dec 19 06:49:29.746 INFO [stderr] 166 |     for (i, ch) in string.chars().enumerate() {
Dec 19 06:49:29.746 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 19 06:49:29.747 INFO [stderr] 
Dec 19 06:49:29.747 INFO [stderr] warning: unused variable: `i`
Dec 19 06:49:29.747 INFO [stderr]    --> src/lexer.rs:207:10
Dec 19 06:49:29.747 INFO [stderr]     |
Dec 19 06:49:29.747 INFO [stderr] 207 |     for (i, token) in tokens.iter().enumerate() {
Dec 19 06:49:29.747 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 19 06:49:29.747 INFO [stderr] 
Dec 19 06:49:29.747 INFO [stderr] warning: unused variable: `string`
Dec 19 06:49:29.747 INFO [stderr]   --> src/cli.rs:21:16
Dec 19 06:49:29.748 INFO [stderr]    |
Dec 19 06:49:29.748 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 19 06:49:29.748 INFO [stderr]    |                ^^^^^^ help: consider using `_string` instead
Dec 19 06:49:29.748 INFO [stderr] 
Dec 19 06:49:29.748 INFO [stderr] warning: unused variable: `x`
Dec 19 06:49:29.748 INFO [stderr]   --> src/main.rs:13:13
Dec 19 06:49:29.748 INFO [stderr]    |
Dec 19 06:49:29.748 INFO [stderr] 13 |     for (i, x) in b.iter().enumerate() {
Dec 19 06:49:29.748 INFO [stderr]    |             ^ help: consider using `_x` instead
Dec 19 06:49:29.748 INFO [stderr] 
Dec 19 06:49:29.749 INFO [stderr] warning: unused variable: `values`
Dec 19 06:49:29.749 INFO [stderr]    --> src/symexpr_rc.rs:288:9
Dec 19 06:49:29.749 INFO [stderr]     |
Dec 19 06:49:29.749 INFO [stderr] 288 |     let values: Vec<Numeric> = vec![
Dec 19 06:49:29.749 INFO [stderr]     |         ^^^^^^ help: consider using `_values` instead
Dec 19 06:49:29.749 INFO [stderr] 
Dec 19 06:49:29.749 INFO [stderr] warning: unused variable: `key`
Dec 19 06:49:29.749 INFO [stderr]    --> src/symengine.rs:190:9
Dec 19 06:49:29.749 INFO [stderr]     |
Dec 19 06:49:29.750 INFO [stderr] 190 |     let key = String::from("x");
Dec 19 06:49:29.750 INFO [stderr]     |         ^^^ help: consider using `_key` instead
Dec 19 06:49:29.750 INFO [stderr] 
Dec 19 06:49:29.750 INFO [stderr] warning: value assigned to `postfixed_tokens` is never read
Dec 19 06:49:29.750 INFO [stderr]    --> src/symengine.rs:105:17
Dec 19 06:49:29.750 INFO [stderr]     |
Dec 19 06:49:29.750 INFO [stderr] 105 |         let mut postfixed_tokens: Vec<Token> = Vec::new();
Dec 19 06:49:29.750 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 19 06:49:29.750 INFO [stderr]     |
Dec 19 06:49:29.751 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 06:49:29.751 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 06:49:29.751 INFO [stderr] 
Dec 19 06:49:29.958 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:49:29.958 INFO [stderr]    --> src/lexer.rs:165:9
Dec 19 06:49:29.958 INFO [stderr]     |
Dec 19 06:49:29.958 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 19 06:49:29.958 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 19 06:49:29.958 INFO [stderr]     |         |
Dec 19 06:49:29.958 INFO [stderr]     |         help: remove this `mut`
Dec 19 06:49:29.958 INFO [stderr]     |
Dec 19 06:49:29.958 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:49:29.958 INFO [stderr] 
Dec 19 06:49:29.999 INFO [stderr] warning: function is never used: `tokenize_number`
Dec 19 06:49:29.999 INFO [stderr]    --> src/lexer.rs:124:1
Dec 19 06:49:29.999 INFO [stderr]     |
Dec 19 06:49:29.999 INFO [stderr] 124 | fn tokenize_number(slice: &str) -> Token {
Dec 19 06:49:29.999 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.999 INFO [stderr]     |
Dec 19 06:49:29.999 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 06:49:29.999 INFO [stderr] 
Dec 19 06:49:29.999 INFO [stderr] warning: function is never used: `string_to_postfix`
Dec 19 06:49:29.999 INFO [stderr]    --> src/lexer.rs:261:1
Dec 19 06:49:29.999 INFO [stderr]     |
Dec 19 06:49:29.999 INFO [stderr] 261 | pub fn string_to_postfix(string: &String) -> Tokens {
Dec 19 06:49:29.999 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.999 INFO [stderr] 
Dec 19 06:49:29.999 INFO [stderr] warning: function is never used: `parse_input`
Dec 19 06:49:29.999 INFO [stderr]   --> src/cli.rs:21:1
Dec 19 06:49:29.999 INFO [stderr]    |
Dec 19 06:49:29.999 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 19 06:49:29.999 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:29.999 INFO [stderr] 
Dec 19 06:49:30.012 INFO [stderr] warning: constant `LeftP` should have an upper case name such as `LEFT_P`
Dec 19 06:49:30.012 INFO [stderr]    --> src/lexer.rs:101:1
Dec 19 06:49:30.012 INFO [stderr]     |
Dec 19 06:49:30.012 INFO [stderr] 101 | const LeftP: Operator = Operator{precedence: 1, op: OperatorType::LeftP};
Dec 19 06:49:30.012 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:30.012 INFO [stderr] 
Dec 19 06:49:30.012 INFO [stderr] warning: constant `RightP` should have an upper case name such as `RIGHT_P`
Dec 19 06:49:30.012 INFO [stderr]    --> src/lexer.rs:102:1
Dec 19 06:49:30.012 INFO [stderr]     |
Dec 19 06:49:30.012 INFO [stderr] 102 | const RightP: Operator = Operator{precedence: 1, op: OperatorType::RightP};
Dec 19 06:49:30.012 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:30.012 INFO [stderr] 
Dec 19 06:49:30.012 INFO [stderr] warning: constant `Add` should have an upper case name such as `ADD`
Dec 19 06:49:30.012 INFO [stderr]    --> src/lexer.rs:103:1
Dec 19 06:49:30.012 INFO [stderr]     |
Dec 19 06:49:30.012 INFO [stderr] 103 | const Add: Operator = Operator{precedence: 2, op: OperatorType::Add};
Dec 19 06:49:30.012 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:30.012 INFO [stderr] 
Dec 19 06:49:30.012 INFO [stderr] warning: constant `Mul` should have an upper case name such as `MUL`
Dec 19 06:49:30.012 INFO [stderr]    --> src/lexer.rs:104:1
Dec 19 06:49:30.013 INFO [stderr]     |
Dec 19 06:49:30.013 INFO [stderr] 104 | const Mul: Operator = Operator{precedence: 4, op: OperatorType::Mul};
Dec 19 06:49:30.013 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:30.013 INFO [stderr] 
Dec 19 06:49:30.013 INFO [stderr] warning: constant `Assignment` should have an upper case name such as `ASSIGNMENT`
Dec 19 06:49:30.013 INFO [stderr]    --> src/lexer.rs:105:1
Dec 19 06:49:30.013 INFO [stderr]     |
Dec 19 06:49:30.013 INFO [stderr] 105 | const Assignment: Operator = Operator{precedence: 4, op: OperatorType::Assignment};
Dec 19 06:49:30.013 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:30.013 INFO [stderr] 
Dec 19 06:49:30.013 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:30.013 INFO [stderr]   --> src/cli.rs:46:5
Dec 19 06:49:30.013 INFO [stderr]    |
Dec 19 06:49:30.013 INFO [stderr] 46 |     io::stdout().flush();
Dec 19 06:49:30.013 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:30.013 INFO [stderr]    |
Dec 19 06:49:30.013 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 06:49:30.014 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:30.014 INFO [stderr] 
Dec 19 06:49:30.014 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:30.014 INFO [stderr]   --> src/cli.rs:47:5
Dec 19 06:49:30.014 INFO [stderr]    |
Dec 19 06:49:30.014 INFO [stderr] 47 |     io::stdin().read_line(&mut input);
Dec 19 06:49:30.014 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 06:49:30.014 INFO [stderr]    |
Dec 19 06:49:30.014 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:30.014 INFO [stderr] 
Dec 19 06:49:30.056 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
Dec 19 06:49:30.920 INFO running `"docker" "inspect" "1bff97f8eacb304cba04d91ad9701ff8ac23bf7cb05fed5785d739964b8f2ca6"`
Dec 19 06:49:31.270 INFO running `"docker" "rm" "-f" "1bff97f8eacb304cba04d91ad9701ff8ac23bf7cb05fed5785d739964b8f2ca6"`
Dec 19 06:49:31.608 INFO [stdout] 1bff97f8eacb304cba04d91ad9701ff8ac23bf7cb05fed5785d739964b8f2ca6