[INFO] updating cached repository cronning9/math-lexer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cronning9/math-lexer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cronning9/math-lexer" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/cronning9/math-lexer"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/cronning9/math-lexer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cronning9/math-lexer" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/cronning9/math-lexer"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/cronning9/math-lexer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5cec47c8a60cafb16fee2c5489b3e757f4f9c175
[INFO] sha for GitHub repo cronning9/math-lexer: 5cec47c8a60cafb16fee2c5489b3e757f4f9c175
[INFO] validating manifest of cronning9/math-lexer on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cronning9/math-lexer on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cronning9/math-lexer
[INFO] finished frobbing cronning9/math-lexer
[INFO] frobbed toml for cronning9/math-lexer written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/cronning9/math-lexer/Cargo.toml
[INFO] started frobbing cronning9/math-lexer
[INFO] finished frobbing cronning9/math-lexer
[INFO] frobbed toml for cronning9/math-lexer written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/cronning9/math-lexer/Cargo.toml
[INFO] crate cronning9/math-lexer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cronning9/math-lexer against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/cronning9/math-lexer:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e1620cfd40ce7270526cb9c56ca1199e571bb6783b97d38137d7a9334f960416
[INFO] running `"docker" "start" "-a" "e1620cfd40ce7270526cb9c56ca1199e571bb6783b97d38137d7a9334f960416"`
[INFO] [stderr]     Checking math-lexer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/lexer.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::Enumerate`
[INFO] [stderr]  --> src/lexer.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::Enumerate;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/lexer.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::Enumerate`
[INFO] [stderr]  --> src/lexer.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::Enumerate;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `first_char`
[INFO] [stderr]   --> src/lexer.rs:89:35
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn tokenize_number(&mut self, first_char: char) -> Token {
[INFO] [stderr]    |                                   ^^^^^^^^^^ help: consider prefixing with an underscore: `_first_char`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lexer.rs:124:43
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn tokenize_arith_operator(&mut self, i: u64, c: char) -> Token {
[INFO] [stderr]     |                                           ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/lexer.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let line = self.line;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/lexer.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |         let col = self.column;
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut input: String;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `first_char`
[INFO] [stderr]   --> src/lexer.rs:89:35
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn tokenize_number(&mut self, first_char: char) -> Token {
[INFO] [stderr]    |                                   ^^^^^^^^^^ help: consider prefixing with an underscore: `_first_char`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/lexer.rs:124:43
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn tokenize_arith_operator(&mut self, i: u64, c: char) -> Token {
[INFO] [stderr]     |                                           ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/lexer.rs:135:13
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let line = self.line;
[INFO] [stderr]     |             ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]   --> src/tokens.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Number(i32),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tokenize_number`
[INFO] [stderr]   --> src/lexer.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn tokenize_number(&mut self, first_char: char) -> Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ArithOperators`
[INFO] [stderr]  --> src/tokens.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum ArithOperators {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ComparisonOperators`
[INFO] [stderr]   --> src/tokens.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum ComparisonOperators {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TokenType`
[INFO] [stderr]   --> src/tokens.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub enum TokenType {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/lexer.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |         let col = self.column;
[INFO] [stderr]     |             ^^^ help: consider prefixing with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut input: String;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]   --> src/tokens.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Number(i32),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `tokenize_number`
[INFO] [stderr]   --> src/lexer.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn tokenize_number(&mut self, first_char: char) -> Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ArithOperators`
[INFO] [stderr]  --> src/tokens.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum ArithOperators {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ComparisonOperators`
[INFO] [stderr]   --> src/tokens.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum ComparisonOperators {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `TokenType`
[INFO] [stderr]   --> src/tokens.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub enum TokenType {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "e1620cfd40ce7270526cb9c56ca1199e571bb6783b97d38137d7a9334f960416"`
[INFO] running `"docker" "rm" "-f" "e1620cfd40ce7270526cb9c56ca1199e571bb6783b97d38137d7a9334f960416"`
[INFO] [stdout] e1620cfd40ce7270526cb9c56ca1199e571bb6783b97d38137d7a9334f960416