Dec 11 07:27:36.350 INFO checking tomvidm/rusty-cas against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 07:27:36.350 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 07:27:36.768 INFO [stdout] 4daf201327b9a3256a38ff322c7688bcc9b6a0f34cab775f8ad3beb00b388679
Dec 11 07:27:36.770 INFO running `"docker" "start" "-a" "4daf201327b9a3256a38ff322c7688bcc9b6a0f34cab775f8ad3beb00b388679"`
Dec 11 07:27:37.979 INFO [stderr] usermod: no changes
Dec 11 07:27:38.016 INFO [stderr]     Checking sym v0.1.0 (/source)
Dec 11 07:27:38.295 INFO [stderr] warning: unused import: `std::io`
Dec 11 07:27:38.295 INFO [stderr]  --> src/lexer.rs:2:5
Dec 11 07:27:38.295 INFO [stderr]   |
Dec 11 07:27:38.295 INFO [stderr] 2 | use std::io;
Dec 11 07:27:38.295 INFO [stderr]   |     ^^^^^^^
Dec 11 07:27:38.295 INFO [stderr]   |
Dec 11 07:27:38.295 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 07:27:38.295 INFO [stderr] 
Dec 11 07:27:38.295 INFO [stderr] warning: unused import: `std::char`
Dec 11 07:27:38.295 INFO [stderr]  --> src/lexer.rs:3:5
Dec 11 07:27:38.295 INFO [stderr]   |
Dec 11 07:27:38.295 INFO [stderr] 3 | use std::char;
Dec 11 07:27:38.295 INFO [stderr]   |     ^^^^^^^^^
Dec 11 07:27:38.295 INFO [stderr] 
Dec 11 07:27:38.295 INFO [stderr] warning: unused import: `Term`
Dec 11 07:27:38.295 INFO [stderr]    --> src/lexer.rs:125:23
Dec 11 07:27:38.295 INFO [stderr]     |
Dec 11 07:27:38.295 INFO [stderr] 125 |     use self::Token::{Term, Operator};
Dec 11 07:27:38.295 INFO [stderr]     |                       ^^^^
Dec 11 07:27:38.295 INFO [stderr] 
Dec 11 07:27:38.295 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 11 07:27:38.295 INFO [stderr]    --> src/lexer.rs:126:27
Dec 11 07:27:38.295 INFO [stderr]     |
Dec 11 07:27:38.295 INFO [stderr] 126 |     use self::TermToken::{Number, VariableKey};
Dec 11 07:27:38.295 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 11 07:27:38.295 INFO [stderr] 
Dec 11 07:27:38.295 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 11 07:27:38.295 INFO [stderr]    --> src/lexer.rs:161:27
Dec 11 07:27:38.295 INFO [stderr]     |
Dec 11 07:27:38.295 INFO [stderr] 161 |     use self::TermToken::{Number, VariableKey};
Dec 11 07:27:38.295 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 11 07:27:38.295 INFO [stderr] 
Dec 11 07:27:38.295 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 07:27:38.295 INFO [stderr]    --> src/lexer.rs:241:25
Dec 11 07:27:38.295 INFO [stderr]     |
Dec 11 07:27:38.295 INFO [stderr] 241 |                         /// Push top operator to output
Dec 11 07:27:38.295 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.295 INFO [stderr]     |
Dec 11 07:27:38.295 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 11 07:27:38.296 INFO [stderr] 
Dec 11 07:27:38.392 INFO [stderr] warning: unused import: `std::io`
Dec 11 07:27:38.392 INFO [stderr]  --> src/lexer.rs:2:5
Dec 11 07:27:38.392 INFO [stderr]   |
Dec 11 07:27:38.392 INFO [stderr] 2 | use std::io;
Dec 11 07:27:38.392 INFO [stderr]   |     ^^^^^^^
Dec 11 07:27:38.392 INFO [stderr]   |
Dec 11 07:27:38.392 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused import: `std::char`
Dec 11 07:27:38.393 INFO [stderr]  --> src/lexer.rs:3:5
Dec 11 07:27:38.393 INFO [stderr]   |
Dec 11 07:27:38.393 INFO [stderr] 3 | use std::char;
Dec 11 07:27:38.393 INFO [stderr]   |     ^^^^^^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused import: `Term`
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:125:23
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 125 |     use self::Token::{Term, Operator};
Dec 11 07:27:38.393 INFO [stderr]     |                       ^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:126:27
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 126 |     use self::TermToken::{Number, VariableKey};
Dec 11 07:27:38.393 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused imports: `Number`, `VariableKey`
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:161:27
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 161 |     use self::TermToken::{Number, VariableKey};
Dec 11 07:27:38.393 INFO [stderr]     |                           ^^^^^^  ^^^^^^^^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: doc comment not used by rustdoc
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:241:25
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 241 |                         /// Push top operator to output
Dec 11 07:27:38.393 INFO [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused import: `Term`
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:268:23
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 268 |     use self::Token::{Term, Operator};
Dec 11 07:27:38.393 INFO [stderr]     |                       ^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused import: `Number`
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:279:27
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 279 |     use self::TermToken::{Number, VariableKey};
Dec 11 07:27:38.393 INFO [stderr]     |                           ^^^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused import: `Number`
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:299:27
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 299 |     use self::TermToken::{Number, VariableKey};
Dec 11 07:27:38.393 INFO [stderr]     |                           ^^^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.393 INFO [stderr] warning: unused import: `Number`
Dec 11 07:27:38.393 INFO [stderr]    --> src/lexer.rs:377:27
Dec 11 07:27:38.393 INFO [stderr]     |
Dec 11 07:27:38.393 INFO [stderr] 377 |     use self::TermToken::{Number, VariableKey};
Dec 11 07:27:38.393 INFO [stderr]     |                           ^^^^^^
Dec 11 07:27:38.393 INFO [stderr] 
Dec 11 07:27:38.592 INFO [stderr] warning: unreachable pattern
Dec 11 07:27:38.593 INFO [stderr]    --> src/symexpr_rc.rs:212:13
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr] 212 |             _ => return None
Dec 11 07:27:38.593 INFO [stderr]     |             ^
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: unused variable: `ch`
Dec 11 07:27:38.593 INFO [stderr]    --> src/lexer.rs:128:9
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr] 128 |     for ch in slice.chars() {
Dec 11 07:27:38.593 INFO [stderr]     |         ^^ help: consider using `_ch` instead
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: unused variable: `i`
Dec 11 07:27:38.593 INFO [stderr]    --> src/lexer.rs:135:10
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr] 135 |     for (i, token) in tokens.iter().enumerate() {
Dec 11 07:27:38.593 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: unused variable: `temp_number`
Dec 11 07:27:38.593 INFO [stderr]    --> src/lexer.rs:165:13
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 11 07:27:38.593 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_temp_number` instead
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: unused variable: `i`
Dec 11 07:27:38.593 INFO [stderr]    --> src/lexer.rs:166:10
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr] 166 |     for (i, ch) in string.chars().enumerate() {
Dec 11 07:27:38.593 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: unused variable: `i`
Dec 11 07:27:38.593 INFO [stderr]    --> src/lexer.rs:207:10
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr] 207 |     for (i, token) in tokens.iter().enumerate() {
Dec 11 07:27:38.593 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: unused variable: `string`
Dec 11 07:27:38.593 INFO [stderr]   --> src/cli.rs:21:16
Dec 11 07:27:38.593 INFO [stderr]    |
Dec 11 07:27:38.593 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 11 07:27:38.593 INFO [stderr]    |                ^^^^^^ help: consider using `_string` instead
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: unused variable: `x`
Dec 11 07:27:38.593 INFO [stderr]   --> src/main.rs:13:13
Dec 11 07:27:38.593 INFO [stderr]    |
Dec 11 07:27:38.593 INFO [stderr] 13 |     for (i, x) in b.iter().enumerate() {
Dec 11 07:27:38.593 INFO [stderr]    |             ^ help: consider using `_x` instead
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.593 INFO [stderr] warning: value assigned to `postfixed_tokens` is never read
Dec 11 07:27:38.593 INFO [stderr]    --> src/symengine.rs:105:17
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr] 105 |         let mut postfixed_tokens: Vec<Token> = Vec::new();
Dec 11 07:27:38.593 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 11 07:27:38.593 INFO [stderr]     |
Dec 11 07:27:38.593 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 11 07:27:38.593 INFO [stderr] 
Dec 11 07:27:38.668 INFO [stderr] warning: variable does not need to be mutable
Dec 11 07:27:38.668 INFO [stderr]    --> src/lexer.rs:165:9
Dec 11 07:27:38.668 INFO [stderr]     |
Dec 11 07:27:38.668 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 11 07:27:38.668 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 11 07:27:38.668 INFO [stderr]     |         |
Dec 11 07:27:38.668 INFO [stderr]     |         help: remove this `mut`
Dec 11 07:27:38.668 INFO [stderr]     |
Dec 11 07:27:38.668 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 07:27:38.668 INFO [stderr] 
Dec 11 07:27:38.676 INFO [stderr] warning: method is never used: `eval_expr_with`
Dec 11 07:27:38.676 INFO [stderr]   --> src/symengine.rs:25:5
Dec 11 07:27:38.676 INFO [stderr]    |
Dec 11 07:27:38.676 INFO [stderr] 25 |     fn eval_expr_with(&self,key: &String, values: &Vec<Numeric>) -> Option<Numeric> {
Dec 11 07:27:38.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.676 INFO [stderr]    |
Dec 11 07:27:38.676 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 07:27:38.676 INFO [stderr] 
Dec 11 07:27:38.676 INFO [stderr] warning: method is never used: `get_variable`
Dec 11 07:27:38.676 INFO [stderr]   --> src/symengine.rs:39:5
Dec 11 07:27:38.676 INFO [stderr]    |
Dec 11 07:27:38.676 INFO [stderr] 39 |     fn get_variable(&self, key: &String) -> Option<Numeric> {
Dec 11 07:27:38.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.676 INFO [stderr] 
Dec 11 07:27:38.677 INFO [stderr] warning: function is never used: `tokenize_number`
Dec 11 07:27:38.677 INFO [stderr]    --> src/lexer.rs:124:1
Dec 11 07:27:38.677 INFO [stderr]     |
Dec 11 07:27:38.677 INFO [stderr] 124 | fn tokenize_number(slice: &str) -> Token {
Dec 11 07:27:38.677 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.677 INFO [stderr] 
Dec 11 07:27:38.677 INFO [stderr] warning: function is never used: `string_to_postfix`
Dec 11 07:27:38.677 INFO [stderr]    --> src/lexer.rs:261:1
Dec 11 07:27:38.677 INFO [stderr]     |
Dec 11 07:27:38.677 INFO [stderr] 261 | pub fn string_to_postfix(string: &String) -> Tokens {
Dec 11 07:27:38.677 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.677 INFO [stderr] 
Dec 11 07:27:38.677 INFO [stderr] warning: function is never used: `parse_input`
Dec 11 07:27:38.677 INFO [stderr]   --> src/cli.rs:21:1
Dec 11 07:27:38.677 INFO [stderr]    |
Dec 11 07:27:38.677 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 11 07:27:38.677 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.677 INFO [stderr] 
Dec 11 07:27:38.680 INFO [stderr] warning: constant `LeftP` should have an upper case name such as `LEFT_P`
Dec 11 07:27:38.680 INFO [stderr]    --> src/lexer.rs:101:1
Dec 11 07:27:38.680 INFO [stderr]     |
Dec 11 07:27:38.680 INFO [stderr] 101 | const LeftP: Operator = Operator{precedence: 1, op: OperatorType::LeftP};
Dec 11 07:27:38.680 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.680 INFO [stderr]     |
Dec 11 07:27:38.680 INFO [stderr]     = note: #[warn(non_upper_case_globals)] on by default
Dec 11 07:27:38.680 INFO [stderr] 
Dec 11 07:27:38.680 INFO [stderr] warning: constant `RightP` should have an upper case name such as `RIGHT_P`
Dec 11 07:27:38.680 INFO [stderr]    --> src/lexer.rs:102:1
Dec 11 07:27:38.680 INFO [stderr]     |
Dec 11 07:27:38.680 INFO [stderr] 102 | const RightP: Operator = Operator{precedence: 1, op: OperatorType::RightP};
Dec 11 07:27:38.680 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.680 INFO [stderr] 
Dec 11 07:27:38.680 INFO [stderr] warning: constant `Add` should have an upper case name such as `ADD`
Dec 11 07:27:38.680 INFO [stderr]    --> src/lexer.rs:103:1
Dec 11 07:27:38.680 INFO [stderr]     |
Dec 11 07:27:38.680 INFO [stderr] 103 | const Add: Operator = Operator{precedence: 2, op: OperatorType::Add};
Dec 11 07:27:38.680 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.680 INFO [stderr] 
Dec 11 07:27:38.681 INFO [stderr] warning: constant `Mul` should have an upper case name such as `MUL`
Dec 11 07:27:38.681 INFO [stderr]    --> src/lexer.rs:104:1
Dec 11 07:27:38.681 INFO [stderr]     |
Dec 11 07:27:38.681 INFO [stderr] 104 | const Mul: Operator = Operator{precedence: 4, op: OperatorType::Mul};
Dec 11 07:27:38.681 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.681 INFO [stderr] 
Dec 11 07:27:38.681 INFO [stderr] warning: constant `Assignment` should have an upper case name such as `ASSIGNMENT`
Dec 11 07:27:38.681 INFO [stderr]    --> src/lexer.rs:105:1
Dec 11 07:27:38.681 INFO [stderr]     |
Dec 11 07:27:38.681 INFO [stderr] 105 | const Assignment: Operator = Operator{precedence: 4, op: OperatorType::Assignment};
Dec 11 07:27:38.681 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.681 INFO [stderr] 
Dec 11 07:27:38.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:27:38.681 INFO [stderr]   --> src/cli.rs:46:5
Dec 11 07:27:38.681 INFO [stderr]    |
Dec 11 07:27:38.681 INFO [stderr] 46 |     io::stdout().flush();
Dec 11 07:27:38.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.681 INFO [stderr]    |
Dec 11 07:27:38.681 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 07:27:38.681 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:27:38.681 INFO [stderr] 
Dec 11 07:27:38.681 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:27:38.681 INFO [stderr]   --> src/cli.rs:47:5
Dec 11 07:27:38.681 INFO [stderr]    |
Dec 11 07:27:38.681 INFO [stderr] 47 |     io::stdin().read_line(&mut input);
Dec 11 07:27:38.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.681 INFO [stderr]    |
Dec 11 07:27:38.681 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:27:38.681 INFO [stderr] 
Dec 11 07:27:38.804 INFO [stderr] warning: unreachable pattern
Dec 11 07:27:38.804 INFO [stderr]    --> src/symexpr_rc.rs:212:13
Dec 11 07:27:38.804 INFO [stderr]     |
Dec 11 07:27:38.804 INFO [stderr] 212 |             _ => return None
Dec 11 07:27:38.804 INFO [stderr]     |             ^
Dec 11 07:27:38.804 INFO [stderr]     |
Dec 11 07:27:38.804 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 11 07:27:38.804 INFO [stderr] 
Dec 11 07:27:38.807 INFO [stderr] warning: unused variable: `ch`
Dec 11 07:27:38.807 INFO [stderr]    --> src/lexer.rs:128:9
Dec 11 07:27:38.807 INFO [stderr]     |
Dec 11 07:27:38.807 INFO [stderr] 128 |     for ch in slice.chars() {
Dec 11 07:27:38.807 INFO [stderr]     |         ^^ help: consider using `_ch` instead
Dec 11 07:27:38.807 INFO [stderr]     |
Dec 11 07:27:38.807 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 07:27:38.807 INFO [stderr] 
Dec 11 07:27:38.807 INFO [stderr] warning: unused variable: `i`
Dec 11 07:27:38.807 INFO [stderr]    --> src/lexer.rs:135:10
Dec 11 07:27:38.807 INFO [stderr]     |
Dec 11 07:27:38.807 INFO [stderr] 135 |     for (i, token) in tokens.iter().enumerate() {
Dec 11 07:27:38.807 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 11 07:27:38.807 INFO [stderr] 
Dec 11 07:27:38.807 INFO [stderr] warning: unused variable: `temp_number`
Dec 11 07:27:38.807 INFO [stderr]    --> src/lexer.rs:165:13
Dec 11 07:27:38.807 INFO [stderr]     |
Dec 11 07:27:38.807 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 11 07:27:38.807 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_temp_number` instead
Dec 11 07:27:38.807 INFO [stderr] 
Dec 11 07:27:38.807 INFO [stderr] warning: unused variable: `i`
Dec 11 07:27:38.807 INFO [stderr]    --> src/lexer.rs:166:10
Dec 11 07:27:38.807 INFO [stderr]     |
Dec 11 07:27:38.807 INFO [stderr] 166 |     for (i, ch) in string.chars().enumerate() {
Dec 11 07:27:38.807 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 11 07:27:38.807 INFO [stderr] 
Dec 11 07:27:38.807 INFO [stderr] warning: unused variable: `i`
Dec 11 07:27:38.807 INFO [stderr]    --> src/lexer.rs:207:10
Dec 11 07:27:38.807 INFO [stderr]     |
Dec 11 07:27:38.807 INFO [stderr] 207 |     for (i, token) in tokens.iter().enumerate() {
Dec 11 07:27:38.807 INFO [stderr]     |          ^ help: consider using `_i` instead
Dec 11 07:27:38.807 INFO [stderr] 
Dec 11 07:27:38.807 INFO [stderr] warning: unused variable: `string`
Dec 11 07:27:38.807 INFO [stderr]   --> src/cli.rs:21:16
Dec 11 07:27:38.807 INFO [stderr]    |
Dec 11 07:27:38.807 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 11 07:27:38.807 INFO [stderr]    |                ^^^^^^ help: consider using `_string` instead
Dec 11 07:27:38.807 INFO [stderr] 
Dec 11 07:27:38.812 INFO [stderr] warning: unused variable: `x`
Dec 11 07:27:38.812 INFO [stderr]   --> src/main.rs:13:13
Dec 11 07:27:38.812 INFO [stderr]    |
Dec 11 07:27:38.812 INFO [stderr] 13 |     for (i, x) in b.iter().enumerate() {
Dec 11 07:27:38.812 INFO [stderr]    |             ^ help: consider using `_x` instead
Dec 11 07:27:38.812 INFO [stderr] 
Dec 11 07:27:38.812 INFO [stderr] warning: unused variable: `values`
Dec 11 07:27:38.812 INFO [stderr]    --> src/symexpr_rc.rs:288:9
Dec 11 07:27:38.812 INFO [stderr]     |
Dec 11 07:27:38.812 INFO [stderr] 288 |     let values: Vec<Numeric> = vec![
Dec 11 07:27:38.812 INFO [stderr]     |         ^^^^^^ help: consider using `_values` instead
Dec 11 07:27:38.813 INFO [stderr] 
Dec 11 07:27:38.813 INFO [stderr] warning: unused variable: `key`
Dec 11 07:27:38.813 INFO [stderr]    --> src/symengine.rs:190:9
Dec 11 07:27:38.813 INFO [stderr]     |
Dec 11 07:27:38.813 INFO [stderr] 190 |     let key = String::from("x");
Dec 11 07:27:38.813 INFO [stderr]     |         ^^^ help: consider using `_key` instead
Dec 11 07:27:38.813 INFO [stderr] 
Dec 11 07:27:38.813 INFO [stderr] warning: value assigned to `postfixed_tokens` is never read
Dec 11 07:27:38.813 INFO [stderr]    --> src/symengine.rs:105:17
Dec 11 07:27:38.813 INFO [stderr]     |
Dec 11 07:27:38.813 INFO [stderr] 105 |         let mut postfixed_tokens: Vec<Token> = Vec::new();
Dec 11 07:27:38.813 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^
Dec 11 07:27:38.813 INFO [stderr]     |
Dec 11 07:27:38.813 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 11 07:27:38.813 INFO [stderr] 
Dec 11 07:27:38.909 INFO [stderr] warning: variable does not need to be mutable
Dec 11 07:27:38.909 INFO [stderr]    --> src/lexer.rs:165:9
Dec 11 07:27:38.909 INFO [stderr]     |
Dec 11 07:27:38.909 INFO [stderr] 165 |     let mut temp_number = Numeric::from_integer(0);
Dec 11 07:27:38.909 INFO [stderr]     |         ----^^^^^^^^^^^
Dec 11 07:27:38.909 INFO [stderr]     |         |
Dec 11 07:27:38.909 INFO [stderr]     |         help: remove this `mut`
Dec 11 07:27:38.909 INFO [stderr]     |
Dec 11 07:27:38.909 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 07:27:38.909 INFO [stderr] 
Dec 11 07:27:38.936 INFO [stderr] warning: function is never used: `tokenize_number`
Dec 11 07:27:38.936 INFO [stderr]    --> src/lexer.rs:124:1
Dec 11 07:27:38.936 INFO [stderr]     |
Dec 11 07:27:38.936 INFO [stderr] 124 | fn tokenize_number(slice: &str) -> Token {
Dec 11 07:27:38.936 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.936 INFO [stderr]     |
Dec 11 07:27:38.936 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 07:27:38.936 INFO [stderr] 
Dec 11 07:27:38.936 INFO [stderr] warning: function is never used: `string_to_postfix`
Dec 11 07:27:38.936 INFO [stderr]    --> src/lexer.rs:261:1
Dec 11 07:27:38.936 INFO [stderr]     |
Dec 11 07:27:38.936 INFO [stderr] 261 | pub fn string_to_postfix(string: &String) -> Tokens {
Dec 11 07:27:38.936 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.936 INFO [stderr] 
Dec 11 07:27:38.953 INFO [stderr] warning: function is never used: `parse_input`
Dec 11 07:27:38.953 INFO [stderr]   --> src/cli.rs:21:1
Dec 11 07:27:38.953 INFO [stderr]    |
Dec 11 07:27:38.953 INFO [stderr] 21 | fn parse_input(string: &String) {
Dec 11 07:27:38.953 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.953 INFO [stderr] 
Dec 11 07:27:38.959 INFO [stderr] warning: constant `LeftP` should have an upper case name such as `LEFT_P`
Dec 11 07:27:38.959 INFO [stderr]    --> src/lexer.rs:101:1
Dec 11 07:27:38.959 INFO [stderr]     |
Dec 11 07:27:38.959 INFO [stderr] 101 | const LeftP: Operator = Operator{precedence: 1, op: OperatorType::LeftP};
Dec 11 07:27:38.959 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.960 INFO [stderr] 
Dec 11 07:27:38.960 INFO [stderr] warning: constant `RightP` should have an upper case name such as `RIGHT_P`
Dec 11 07:27:38.960 INFO [stderr]    --> src/lexer.rs:102:1
Dec 11 07:27:38.960 INFO [stderr]     |
Dec 11 07:27:38.960 INFO [stderr] 102 | const RightP: Operator = Operator{precedence: 1, op: OperatorType::RightP};
Dec 11 07:27:38.960 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.960 INFO [stderr] 
Dec 11 07:27:38.960 INFO [stderr] warning: constant `Add` should have an upper case name such as `ADD`
Dec 11 07:27:38.960 INFO [stderr]    --> src/lexer.rs:103:1
Dec 11 07:27:38.960 INFO [stderr]     |
Dec 11 07:27:38.960 INFO [stderr] 103 | const Add: Operator = Operator{precedence: 2, op: OperatorType::Add};
Dec 11 07:27:38.960 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.960 INFO [stderr] 
Dec 11 07:27:38.960 INFO [stderr] warning: constant `Mul` should have an upper case name such as `MUL`
Dec 11 07:27:38.960 INFO [stderr]    --> src/lexer.rs:104:1
Dec 11 07:27:38.960 INFO [stderr]     |
Dec 11 07:27:38.960 INFO [stderr] 104 | const Mul: Operator = Operator{precedence: 4, op: OperatorType::Mul};
Dec 11 07:27:38.960 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.960 INFO [stderr] 
Dec 11 07:27:38.960 INFO [stderr] warning: constant `Assignment` should have an upper case name such as `ASSIGNMENT`
Dec 11 07:27:38.960 INFO [stderr]    --> src/lexer.rs:105:1
Dec 11 07:27:38.960 INFO [stderr]     |
Dec 11 07:27:38.960 INFO [stderr] 105 | const Assignment: Operator = Operator{precedence: 4, op: OperatorType::Assignment};
Dec 11 07:27:38.960 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.960 INFO [stderr] 
Dec 11 07:27:38.962 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:27:38.964 INFO [stderr]   --> src/cli.rs:46:5
Dec 11 07:27:38.964 INFO [stderr]    |
Dec 11 07:27:38.964 INFO [stderr] 46 |     io::stdout().flush();
Dec 11 07:27:38.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.964 INFO [stderr]    |
Dec 11 07:27:38.964 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 07:27:38.964 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:27:38.964 INFO [stderr] 
Dec 11 07:27:38.964 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 07:27:38.964 INFO [stderr]   --> src/cli.rs:47:5
Dec 11 07:27:38.964 INFO [stderr]    |
Dec 11 07:27:38.964 INFO [stderr] 47 |     io::stdin().read_line(&mut input);
Dec 11 07:27:38.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:27:38.964 INFO [stderr]    |
Dec 11 07:27:38.964 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 07:27:38.964 INFO [stderr] 
Dec 11 07:27:39.034 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 11 07:27:39.040 INFO [stderr] su: No module specific data is present
Dec 11 07:27:39.930 INFO running `"docker" "inspect" "4daf201327b9a3256a38ff322c7688bcc9b6a0f34cab775f8ad3beb00b388679"`
Dec 11 07:27:40.086 INFO running `"docker" "rm" "-f" "4daf201327b9a3256a38ff322c7688bcc9b6a0f34cab775f8ad3beb00b388679"`
Dec 11 07:27:40.211 INFO [stdout] 4daf201327b9a3256a38ff322c7688bcc9b6a0f34cab775f8ad3beb00b388679