[INFO] cloning repository https://github.com/evilwaveforms/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/evilwaveforms/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevilwaveforms%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevilwaveforms%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28c1631afafdc1e0f2c33a3027d8783042019850
[INFO] checking evilwaveforms/rlox against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevilwaveforms%2Frlox" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/evilwaveforms/rlox on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/evilwaveforms/rlox
[INFO] finished tweaking git repo https://github.com/evilwaveforms/rlox
[INFO] tweaked toml for git repo https://github.com/evilwaveforms/rlox written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/evilwaveforms/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fcf6b04548a2e8b03bba50f41ff4ae17020bf08f9ec511638b3aa7f439c53ed
[INFO] running `Command { std: "docker" "start" "-a" "1fcf6b04548a2e8b03bba50f41ff4ae17020bf08f9ec511638b3aa7f439c53ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fcf6b04548a2e8b03bba50f41ff4ae17020bf08f9ec511638b3aa7f439c53ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fcf6b04548a2e8b03bba50f41ff4ae17020bf08f9ec511638b3aa7f439c53ed", kill_on_drop: false }`
[INFO] [stdout] 1fcf6b04548a2e8b03bba50f41ff4ae17020bf08f9ec511638b3aa7f439c53ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5e8d41b8e4ced4f2fa5ae1853dcaedb1d6d58398d13366be921b77063d936c2
[INFO] running `Command { std: "docker" "start" "-a" "a5e8d41b8e4ced4f2fa5ae1853dcaedb1d6d58398d13366be921b77063d936c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.36
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `interpreter`
[INFO] [stdout]   --> src/interpreter.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interpreter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:42:47
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `since_the_epoch`
[INFO] [stdout]   --> src/interpreter.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let since_the_epoch = start.duration_since(UNIX_EPOCH).unwrap().as_secs_f32();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_since_the_epoch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epxr`
[INFO] [stdout]    --> src/interpreter.rs:114:24
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Expr::Call(epxr) => todo!(),
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_epxr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> src/interpreter.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Stmt::Function(stmt) => todo!(),
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interpreter`
[INFO] [stdout]   --> src/interpreter.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interpreter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:42:47
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `since_the_epoch`
[INFO] [stdout]   --> src/interpreter.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let since_the_epoch = start.duration_since(UNIX_EPOCH).unwrap().as_secs_f32();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_since_the_epoch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `initializer` is never read
[INFO] [stdout]   --> src/parser.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut initializer = None;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epxr`
[INFO] [stdout]    --> src/interpreter.rs:114:24
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Expr::Call(epxr) => todo!(),
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_epxr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> src/interpreter.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Stmt::Function(stmt) => todo!(),
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:461:17
[INFO] [stdout]     |
[INFO] [stdout] 461 |             Err(e) => true,
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:491:21
[INFO] [stdout]     |
[INFO] [stdout] 491 |                 Err(e) => return,
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `initializer` is never read
[INFO] [stdout]   --> src/parser.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut initializer = None;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:461:17
[INFO] [stdout]     |
[INFO] [stdout] 461 |             Err(e) => true,
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repl`
[INFO] [stdout]   --> src/main.rs:77:37
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn run(idx: usize, source: Vec<u8>, repl: bool, interpreter: &mut interpreter::Interpreter) {
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_repl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:491:21
[INFO] [stdout]     |
[INFO] [stdout] 491 |                 Err(e) => return,
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `callee`, `paren`, and `arguments` are never read
[INFO] [stdout]   --> src/expr.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Call {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 54 |     pub callee: Expr,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 55 |     pub paren: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 56 |     pub arguments: Vec<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Call` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Func` is never constructed
[INFO] [stdout]   --> src/interpreter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Data {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Func,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LoxCallable` is never used
[INFO] [stdout]   --> src/interpreter.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | trait LoxCallable {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `repl` is never read
[INFO] [stdout]   --> src/interpreter.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct Interpreter {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 49 |     pub env: Rc<RefCell<Environment>>,
[INFO] [stdout] 50 |     pub repl: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Interpreter` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `call` and `evaluate_call_expr` are never used
[INFO] [stdout]    --> src/interpreter.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl Interpreter {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] 85  |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |     fn evaluate_call_expr(&mut self, expr: &Call) -> Result<Data, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `parameters`, and `body` are never read
[INFO] [stdout]   --> src/stmt.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Function {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 50 |     pub name: Token,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 51 |     pub parameters: Vec<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 52 |     pub body: Vec<Stmt>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let _ = self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let _ = self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let _ = self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repl`
[INFO] [stdout]   --> src/main.rs:77:37
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn run(idx: usize, source: Vec<u8>, repl: bool, interpreter: &mut interpreter::Interpreter) {
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_repl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]  --> src/ast_printer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Expr {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 5 |     pub fn print(&self) -> String {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parenthesize` is never used
[INFO] [stdout]   --> src/ast_printer.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parenthesize(name: &String, exprs: &[&Expr]) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `callee`, `paren`, and `arguments` are never read
[INFO] [stdout]   --> src/expr.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Call {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 54 |     pub callee: Expr,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 55 |     pub paren: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 56 |     pub arguments: Vec<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Call` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Func` is never constructed
[INFO] [stdout]   --> src/interpreter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Data {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Func,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LoxCallable` is never used
[INFO] [stdout]   --> src/interpreter.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | trait LoxCallable {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `repl` is never read
[INFO] [stdout]   --> src/interpreter.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct Interpreter {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 49 |     pub env: Rc<RefCell<Environment>>,
[INFO] [stdout] 50 |     pub repl: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Interpreter` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `call` and `evaluate_call_expr` are never used
[INFO] [stdout]    --> src/interpreter.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl Interpreter {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] 85  |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |     fn evaluate_call_expr(&mut self, expr: &Call) -> Result<Data, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `parameters`, and `body` are never read
[INFO] [stdout]   --> src/stmt.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Function {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 50 |     pub name: Token,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 51 |     pub parameters: Vec<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 52 |     pub body: Vec<Stmt>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let _ = self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let _ = self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let _ = self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.55s
[INFO] running `Command { std: "docker" "inspect" "a5e8d41b8e4ced4f2fa5ae1853dcaedb1d6d58398d13366be921b77063d936c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e8d41b8e4ced4f2fa5ae1853dcaedb1d6d58398d13366be921b77063d936c2", kill_on_drop: false }`
[INFO] [stdout] a5e8d41b8e4ced4f2fa5ae1853dcaedb1d6d58398d13366be921b77063d936c2
[INFO] checking evilwaveforms/rlox against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevilwaveforms%2Frlox" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/evilwaveforms/rlox on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/evilwaveforms/rlox
[INFO] finished tweaking git repo https://github.com/evilwaveforms/rlox
[INFO] tweaked toml for git repo https://github.com/evilwaveforms/rlox written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/evilwaveforms/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0f8c3db1eb15821624d1457c2883f69dbbc7ec5127ce33e968a173d61ac4a92
[INFO] running `Command { std: "docker" "start" "-a" "c0f8c3db1eb15821624d1457c2883f69dbbc7ec5127ce33e968a173d61ac4a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0f8c3db1eb15821624d1457c2883f69dbbc7ec5127ce33e968a173d61ac4a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f8c3db1eb15821624d1457c2883f69dbbc7ec5127ce33e968a173d61ac4a92", kill_on_drop: false }`
[INFO] [stdout] c0f8c3db1eb15821624d1457c2883f69dbbc7ec5127ce33e968a173d61ac4a92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69a362ffdeb322163566ed694c34ab8ca6f0801a4e2c6afe41c29433db34a422
[INFO] running `Command { std: "docker" "start" "-a" "69a362ffdeb322163566ed694c34ab8ca6f0801a4e2c6afe41c29433db34a422", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.36
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `interpreter`
[INFO] [stdout]   --> src/interpreter.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interpreter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:42:47
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `since_the_epoch`
[INFO] [stdout]   --> src/interpreter.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let since_the_epoch = start.duration_since(UNIX_EPOCH).unwrap().as_secs_f32();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_since_the_epoch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epxr`
[INFO] [stdout]    --> src/interpreter.rs:114:24
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Expr::Call(epxr) => todo!(),
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_epxr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> src/interpreter.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Stmt::Function(stmt) => todo!(),
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interpreter`
[INFO] [stdout]   --> src/interpreter.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interpreter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:42:47
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn call(&self, interpreter: &Interpreter, arguments: Vec<Data>) {
[INFO] [stdout]    |                                               ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `since_the_epoch`
[INFO] [stdout]   --> src/interpreter.rs:87:13
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let since_the_epoch = start.duration_since(UNIX_EPOCH).unwrap().as_secs_f32();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_since_the_epoch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/interpreter.rs:85:28
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]    |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epxr`
[INFO] [stdout]    --> src/interpreter.rs:114:24
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Expr::Call(epxr) => todo!(),
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_epxr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stmt`
[INFO] [stdout]    --> src/interpreter.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Stmt::Function(stmt) => todo!(),
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_stmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `initializer` is never read
[INFO] [stdout]   --> src/parser.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut initializer = None;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `initializer` is never read
[INFO] [stdout]   --> src/parser.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut initializer = None;
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:461:17
[INFO] [stdout]     |
[INFO] [stdout] 461 |             Err(e) => true,
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:491:21
[INFO] [stdout]     |
[INFO] [stdout] 491 |                 Err(e) => return,
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:461:17
[INFO] [stdout]     |
[INFO] [stdout] 461 |             Err(e) => true,
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:491:21
[INFO] [stdout]     |
[INFO] [stdout] 491 |                 Err(e) => return,
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repl`
[INFO] [stdout]   --> src/main.rs:77:37
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn run(idx: usize, source: Vec<u8>, repl: bool, interpreter: &mut interpreter::Interpreter) {
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_repl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]  --> src/ast_printer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | impl Expr {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 5 |     pub fn print(&self) -> String {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parenthesize` is never used
[INFO] [stdout]   --> src/ast_printer.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parenthesize(name: &String, exprs: &[&Expr]) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `callee`, `paren`, and `arguments` are never read
[INFO] [stdout]   --> src/expr.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Call {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 54 |     pub callee: Expr,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 55 |     pub paren: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 56 |     pub arguments: Vec<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Call` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Func` is never constructed
[INFO] [stdout]   --> src/interpreter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Data {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Func,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LoxCallable` is never used
[INFO] [stdout]   --> src/interpreter.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | trait LoxCallable {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `repl` is never read
[INFO] [stdout]   --> src/interpreter.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct Interpreter {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 49 |     pub env: Rc<RefCell<Environment>>,
[INFO] [stdout] 50 |     pub repl: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Interpreter` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `call` and `evaluate_call_expr` are never used
[INFO] [stdout]    --> src/interpreter.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl Interpreter {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] 85  |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |     fn evaluate_call_expr(&mut self, expr: &Call) -> Result<Data, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `parameters`, and `body` are never read
[INFO] [stdout]   --> src/stmt.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Function {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 50 |     pub name: Token,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 51 |     pub parameters: Vec<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 52 |     pub body: Vec<Stmt>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let _ = self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let _ = self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let _ = self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `repl`
[INFO] [stdout]   --> src/main.rs:77:37
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn run(idx: usize, source: Vec<u8>, repl: bool, interpreter: &mut interpreter::Interpreter) {
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_repl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `callee`, `paren`, and `arguments` are never read
[INFO] [stdout]   --> src/expr.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Call {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 54 |     pub callee: Expr,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 55 |     pub paren: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 56 |     pub arguments: Vec<Expr>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Call` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Func` is never constructed
[INFO] [stdout]   --> src/interpreter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub enum Data {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Func,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LoxCallable` is never used
[INFO] [stdout]   --> src/interpreter.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 | trait LoxCallable {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `repl` is never read
[INFO] [stdout]   --> src/interpreter.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct Interpreter {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 49 |     pub env: Rc<RefCell<Environment>>,
[INFO] [stdout] 50 |     pub repl: bool,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Interpreter` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `call` and `evaluate_call_expr` are never used
[INFO] [stdout]    --> src/interpreter.rs:85:12
[INFO] [stdout]     |
[INFO] [stdout] 84  | impl Interpreter {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] 85  |     pub fn call(&mut self, arguments: Vec<Stmt>) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 266 |     fn evaluate_call_expr(&mut self, expr: &Call) -> Result<Data, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `parameters`, and `body` are never read
[INFO] [stdout]   --> src/stmt.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Function {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 50 |     pub name: Token,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 51 |     pub parameters: Vec<Token>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 52 |     pub body: Vec<Stmt>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let _ = self.consume(&TokenType::RightParen, "Expect ')' after parameters.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let _ = self.consume(&TokenType::LeftBrace, &("Expect '{' before ".to_string() + &kind + " body."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:210:9
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 210 |         let _ = self.consume(&TokenType::RightBrace, "Expect '}' after block.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.40s
[INFO] running `Command { std: "docker" "inspect" "69a362ffdeb322163566ed694c34ab8ca6f0801a4e2c6afe41c29433db34a422", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69a362ffdeb322163566ed694c34ab8ca6f0801a4e2c6afe41c29433db34a422", kill_on_drop: false }`
[INFO] [stdout] 69a362ffdeb322163566ed694c34ab8ca6f0801a4e2c6afe41c29433db34a422