[INFO] cloning repository https://github.com/curtisxk38/rlox-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/curtisxk38/rlox-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frlox-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frlox-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0c43a4e0078dcee948e8d9681fa6b39a6b18803
[INFO] checking curtisxk38/rlox-tree against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frlox-tree" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/curtisxk38/rlox-tree on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/curtisxk38/rlox-tree
[INFO] finished tweaking git repo https://github.com/curtisxk38/rlox-tree
[INFO] tweaked toml for git repo https://github.com/curtisxk38/rlox-tree written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/curtisxk38/rlox-tree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d6ccb2d7afa6bdcb1f6045c29f351837528891a6bb304f30817c8783f6b1bd2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3d6ccb2d7afa6bdcb1f6045c29f351837528891a6bb304f30817c8783f6b1bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d6ccb2d7afa6bdcb1f6045c29f351837528891a6bb304f30817c8783f6b1bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d6ccb2d7afa6bdcb1f6045c29f351837528891a6bb304f30817c8783f6b1bd2", kill_on_drop: false }`
[INFO] [stdout] 3d6ccb2d7afa6bdcb1f6045c29f351837528891a6bb304f30817c8783f6b1bd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4ecdec07aba1a1497b0bc9532c7ae98654ca973840dee22da4fc40441a65390
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4ecdec07aba1a1497b0bc9532c7ae98654ca973840dee22da4fc40441a65390", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking lox-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftParen`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                 ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightParen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                              ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                                          ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,                                
[INFO] [stdout]   |           ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     EQUAL, EQUAL_EQUAL,                              
[INFO] [stdout]   |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/tokens.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,                          
[INFO] [stdout]    |              ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/tokens.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,                                
[INFO] [stdout]    |           ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftParen`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                 ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightParen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                              ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                                          ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,                                
[INFO] [stdout]   |           ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]  --> src/tokens.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     EQUAL, EQUAL_EQUAL,                              
[INFO] [stdout]   |            ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/tokens.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,                          
[INFO] [stdout]    |              ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/tokens.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,                                
[INFO] [stdout]    |           ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Scanner`
[INFO] [stdout]  --> src/scan.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Scanner {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/scan.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(source: String) -> Scanner {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LEFT_PAREN`
[INFO] [stdout]  --> src/tokens.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RIGHT_PAREN`
[INFO] [stdout]  --> src/tokens.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LEFT_BRACE`
[INFO] [stdout]  --> src/tokens.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RIGHT_BRACE`
[INFO] [stdout]  --> src/tokens.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `COMMA`
[INFO] [stdout]  --> src/tokens.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DOT`
[INFO] [stdout]  --> src/tokens.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MINUS`
[INFO] [stdout]  --> src/tokens.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PLUS`
[INFO] [stdout]  --> src/tokens.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SEMICOLON`
[INFO] [stdout]  --> src/tokens.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SLASH`
[INFO] [stdout]  --> src/tokens.rs:5:41
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `STAR`
[INFO] [stdout]  --> src/tokens.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG`
[INFO] [stdout]  --> src/tokens.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,                                
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG_EQUAL`
[INFO] [stdout]  --> src/tokens.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,                                
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EQUAL`
[INFO] [stdout]  --> src/tokens.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     EQUAL, EQUAL_EQUAL,                              
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EQUAL_EQUAL`
[INFO] [stdout]  --> src/tokens.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     EQUAL, EQUAL_EQUAL,                              
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER`
[INFO] [stdout]   --> src/tokens.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,                          
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER_EQUAL`
[INFO] [stdout]   --> src/tokens.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,                          
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS`
[INFO] [stdout]   --> src/tokens.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,                                
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS_EQUAL`
[INFO] [stdout]   --> src/tokens.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,                                
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IDENTIFIER`
[INFO] [stdout]   --> src/tokens.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING, NUMBER,                      
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `STRING`
[INFO] [stdout]   --> src/tokens.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING, NUMBER,                      
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER`
[INFO] [stdout]   --> src/tokens.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING, NUMBER,                      
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AND`
[INFO] [stdout]   --> src/tokens.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CLASS`
[INFO] [stdout]   --> src/tokens.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ELSE`
[INFO] [stdout]   --> src/tokens.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FALSE`
[INFO] [stdout]   --> src/tokens.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FUN`
[INFO] [stdout]   --> src/tokens.rs:17:30
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FOR`
[INFO] [stdout]   --> src/tokens.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IF`
[INFO] [stdout]   --> src/tokens.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NIL`
[INFO] [stdout]   --> src/tokens.rs:17:44
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OR`
[INFO] [stdout]   --> src/tokens.rs:17:49
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                                 ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRINT`
[INFO] [stdout]   --> src/tokens.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RETURN`
[INFO] [stdout]   --> src/tokens.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SUPER`
[INFO] [stdout]   --> src/tokens.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `THIS`
[INFO] [stdout]   --> src/tokens.rs:18:27
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TRUE`
[INFO] [stdout]   --> src/tokens.rs:18:33
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `VAR`
[INFO] [stdout]   --> src/tokens.rs:18:39
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WHILE`
[INFO] [stdout]   --> src/tokens.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOF`
[INFO] [stdout]   --> src/tokens.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     EOF                                              
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tokens.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(token_type: TokenType, lexeme: String, line: u32) -> Token {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `error`
[INFO] [stdout]   --> src/main.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn error(&mut self, line: i32, error_where: &String, message: &String) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Scanner`
[INFO] [stdout]  --> src/scan.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Scanner {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/scan.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(source: String) -> Scanner {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LEFT_PAREN`
[INFO] [stdout]  --> src/tokens.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RIGHT_PAREN`
[INFO] [stdout]  --> src/tokens.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LEFT_BRACE`
[INFO] [stdout]  --> src/tokens.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RIGHT_BRACE`
[INFO] [stdout]  --> src/tokens.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 |     LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
[INFO] [stdout]   |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `COMMA`
[INFO] [stdout]  --> src/tokens.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `DOT`
[INFO] [stdout]  --> src/tokens.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MINUS`
[INFO] [stdout]  --> src/tokens.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PLUS`
[INFO] [stdout]  --> src/tokens.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SEMICOLON`
[INFO] [stdout]  --> src/tokens.rs:5:30
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SLASH`
[INFO] [stdout]  --> src/tokens.rs:5:41
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `STAR`
[INFO] [stdout]  --> src/tokens.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 |     COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR, 
[INFO] [stdout]   |                                                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG`
[INFO] [stdout]  --> src/tokens.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,                                
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG_EQUAL`
[INFO] [stdout]  --> src/tokens.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,                                
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EQUAL`
[INFO] [stdout]  --> src/tokens.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     EQUAL, EQUAL_EQUAL,                              
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EQUAL_EQUAL`
[INFO] [stdout]  --> src/tokens.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     EQUAL, EQUAL_EQUAL,                              
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER`
[INFO] [stdout]   --> src/tokens.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,                          
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER_EQUAL`
[INFO] [stdout]   --> src/tokens.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,                          
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS`
[INFO] [stdout]   --> src/tokens.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,                                
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS_EQUAL`
[INFO] [stdout]   --> src/tokens.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,                                
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IDENTIFIER`
[INFO] [stdout]   --> src/tokens.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING, NUMBER,                      
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `STRING`
[INFO] [stdout]   --> src/tokens.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING, NUMBER,                      
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER`
[INFO] [stdout]   --> src/tokens.rs:14:25
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING, NUMBER,                      
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AND`
[INFO] [stdout]   --> src/tokens.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CLASS`
[INFO] [stdout]   --> src/tokens.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ELSE`
[INFO] [stdout]   --> src/tokens.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FALSE`
[INFO] [stdout]   --> src/tokens.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FUN`
[INFO] [stdout]   --> src/tokens.rs:17:30
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FOR`
[INFO] [stdout]   --> src/tokens.rs:17:35
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IF`
[INFO] [stdout]   --> src/tokens.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NIL`
[INFO] [stdout]   --> src/tokens.rs:17:44
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OR`
[INFO] [stdout]   --> src/tokens.rs:17:49
[INFO] [stdout]    |
[INFO] [stdout] 17 |     AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,  
[INFO] [stdout]    |                                                 ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRINT`
[INFO] [stdout]   --> src/tokens.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RETURN`
[INFO] [stdout]   --> src/tokens.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SUPER`
[INFO] [stdout]   --> src/tokens.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `THIS`
[INFO] [stdout]   --> src/tokens.rs:18:27
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TRUE`
[INFO] [stdout]   --> src/tokens.rs:18:33
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `VAR`
[INFO] [stdout]   --> src/tokens.rs:18:39
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WHILE`
[INFO] [stdout]   --> src/tokens.rs:18:44
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,    
[INFO] [stdout]    |                                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOF`
[INFO] [stdout]   --> src/tokens.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     EOF                                              
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/tokens.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn new(token_type: TokenType, lexeme: String, line: u32) -> Token {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `error`
[INFO] [stdout]   --> src/main.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn error(&mut self, line: i32, error_where: &String, message: &String) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "f4ecdec07aba1a1497b0bc9532c7ae98654ca973840dee22da4fc40441a65390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ecdec07aba1a1497b0bc9532c7ae98654ca973840dee22da4fc40441a65390", kill_on_drop: false }`
[INFO] [stdout] f4ecdec07aba1a1497b0bc9532c7ae98654ca973840dee22da4fc40441a65390