[INFO] cloning repository https://github.com/DarkMatter-999/Rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DarkMatter-999/Rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarkMatter-999%2FRlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarkMatter-999%2FRlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 398cc4d3749ebc215527065e5f4918943df743ac
[INFO] checking DarkMatter-999/Rlox/398cc4d3749ebc215527065e5f4918943df743ac against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarkMatter-999%2FRlox" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DarkMatter-999/Rlox on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DarkMatter-999/Rlox
[INFO] finished tweaking git repo https://github.com/DarkMatter-999/Rlox
[INFO] tweaked toml for git repo https://github.com/DarkMatter-999/Rlox written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DarkMatter-999/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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.interpreter.test
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5219c02a80fc66f8a8e0dc039cf464140757d3d1e645b64f4ef20b4287750ea6
[INFO] running `Command { std: "docker" "start" "-a" "5219c02a80fc66f8a8e0dc039cf464140757d3d1e645b64f4ef20b4287750ea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5219c02a80fc66f8a8e0dc039cf464140757d3d1e645b64f4ef20b4287750ea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5219c02a80fc66f8a8e0dc039cf464140757d3d1e645b64f4ef20b4287750ea6", kill_on_drop: false }`
[INFO] [stdout] 5219c02a80fc66f8a8e0dc039cf464140757d3d1e645b64f4ef20b4287750ea6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c8556ede30d23b670149671db827cdb23f45203154b6c2b19bb35ec3399c777
[INFO] running `Command { std: "docker" "start" "-a" "7c8556ede30d23b670149671db827cdb23f45203154b6c2b19bb35ec3399c777", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.interpreter.test
[INFO] [stderr]     Checking interpreter v0.1.0 (/opt/rustwide/workdir/interpreter)
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> interpreter/src/lib.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, stderr, BufRead, BufReader, Read, Write},
[INFO] [stdout]   |                                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::Parser`
[INFO] [stdout]  --> interpreter/src/lib.rs:9:39
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::{interpreter::Interpreter, parser::Parser};
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> interpreter/src/parser.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     expr::{self, Boxed, Expr},
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> interpreter/src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     LEFT_PAREN,
[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]  --> interpreter/src/token.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     RIGHT_PAREN,
[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]  --> interpreter/src/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     LEFT_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]  --> interpreter/src/token.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     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]   --> interpreter/src/token.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     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]   --> interpreter/src/token.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     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]   --> interpreter/src/token.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     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]   --> interpreter/src/token.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     LESS_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> interpreter/src/lib.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, stderr, BufRead, BufReader, Read, Write},
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> interpreter/src/expr.rs:20:30
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn visit_expr(&mut self, expr: &Expr) -> T {
[INFO] [stdout]    |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lit`
[INFO] [stdout]   --> interpreter/src/expr.rs:24:46
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn visit_literal(&mut self, expr: &Expr, lit: &Token) -> T {
[INFO] [stdout]    |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_lit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inside`
[INFO] [stdout]   --> interpreter/src/expr.rs:28:47
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn visit_grouping(&mut self, expr: &Expr, inside: &Expr) -> T {
[INFO] [stdout]    |                                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inside`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> interpreter/src/expr.rs:32:44
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn visit_unary(&mut self, expr: &Expr, op: &Token, rhs: &Expr) -> T {
[INFO] [stdout]    |                                            ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> interpreter/src/expr.rs:32:56
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn visit_unary(&mut self, expr: &Expr, op: &Token, rhs: &Expr) -> T {
[INFO] [stdout]    |                                                        ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> interpreter/src/expr.rs:35:46
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn visit_logical(&mut self, expr: &Expr, op: &Token, rhs: &Expr) -> T {
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> interpreter/src/expr.rs:35:58
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn visit_logical(&mut self, expr: &Expr, op: &Token, rhs: &Expr) -> T {
[INFO] [stdout]    |                                                          ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lhs`
[INFO] [stdout]   --> interpreter/src/expr.rs:38:45
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_binary(&mut self, expr: &Expr, lhs: &Expr, op: &Token, rhs: &Expr) -> T {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_lhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> interpreter/src/expr.rs:38:57
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_binary(&mut self, expr: &Expr, lhs: &Expr, op: &Token, rhs: &Expr) -> T {
[INFO] [stdout]    |                                                         ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> interpreter/src/expr.rs:38:69
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn visit_binary(&mut self, expr: &Expr, lhs: &Expr, op: &Token, rhs: &Expr) -> T {
[INFO] [stdout]    |                                                                     ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> interpreter/src/expr.rs:42:49
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn visit_identifier(&mut self, expr: &Expr, n: &String) -> T {
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> interpreter/src/expr.rs:46:49
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn visit_assignment(&mut self, expr: &Expr, n: &String, rhs: &Box<Expr>) -> T {
[INFO] [stdout]    |                                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> interpreter/src/expr.rs:46:61
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn visit_assignment(&mut self, expr: &Expr, n: &String, rhs: &Box<Expr>) -> T {
[INFO] [stdout]    |                                                             ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]   --> interpreter/src/expr.rs:50:43
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn visit_call(&mut self, expr: &Expr, paren: &Token, params: &[Expr]) -> T {
[INFO] [stdout]    |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]   --> interpreter/src/expr.rs:50:58
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn visit_call(&mut self, expr: &Expr, paren: &Token, params: &[Expr]) -> T {
[INFO] [stdout]    |                                                          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `int`
[INFO] [stdout]   --> interpreter/src/function.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn call(&self, int: &mut Interpreter, args: &[Object]) -> ResultMSG<Object> {
[INFO] [stdout]    |                    ^^^ help: if this is intentional, prefix it with an underscore: `_int`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> interpreter/src/interpreter.rs:59:33
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn visit_literal(&mut self, expr: &Expr, lit: &Token) -> ResultMSG<Object> {
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> interpreter/src/interpreter.rs:63:34
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn visit_grouping(&mut self, expr: &Expr, inside: &Expr) -> ResultMSG<Object> {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> interpreter/src/interpreter.rs:67:31
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn visit_unary(&mut self, expr: &Expr, op: &Token, rhs: &Expr) -> ResultMSG<Object> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> interpreter/src/interpreter.rs:220:36
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn visit_identifier(&mut self, expr: &Expr, n: &String) -> ResultMSG<Object> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> interpreter/src/interpreter.rs:224:36
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fn visit_assignment(&mut self, expr: &Expr, n: &String, rhs: &Box<Expr>) -> ResultMSG<Object> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> interpreter/src/parser.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 204 |             t => t.in_types(types.to_vec()),
[INFO] [stdout]     |             - matches any value
[INFO] [stdout] 205 |             _ => false,
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> interpreter/src/lib.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |         Ok(t) => {}
[INFO] [stdout]    |            ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> interpreter/src/lib.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Err(e) => {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> interpreter/src/lib.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |             Ok(t) => {}
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> interpreter/src/lib.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `with_globals` is never used
[INFO] [stdout]   --> interpreter/src/env.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Env {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn with_globals(env: Rc<Env>) -> Rc<Env> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `boxed` is never used
[INFO] [stdout]   --> interpreter/src/error.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl Error {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] 61 |     pub fn boxed(self) -> Box<Error> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse` is never used
[INFO] [stdout]   --> interpreter/src/parser.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Parser {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn parse(&mut self) -> ResultMSG<Stmt> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> interpreter/src/lib.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |                 writeln!(&mut stderr(), "{}", e);
[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]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> interpreter/src/function.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             env.define(param, arg.clone());
[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] 44 |             let _ = env.define(param, arg.clone());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]    --> interpreter/src/interpreter.rs:321:31
[INFO] [stdout]     |
[INFO] [stdout] 321 |             else_stmt.unwrap().deref().accept(self)
[INFO] [stdout]     |                               ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Stmt` does not implement `Deref`, so calling `deref` on `&Stmt` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 321 -             else_stmt.unwrap().deref().accept(self)
[INFO] [stdout] 321 +             else_stmt.unwrap().accept(self)
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Stmt`, implement `Clone` for it
[INFO] [stdout]    --> interpreter/src/stmt.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   + #[derive(Clone)]
[INFO] [stdout] 6   | pub enum Stmt {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 44 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "7c8556ede30d23b670149671db827cdb23f45203154b6c2b19bb35ec3399c777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c8556ede30d23b670149671db827cdb23f45203154b6c2b19bb35ec3399c777", kill_on_drop: false }`
[INFO] [stdout] 7c8556ede30d23b670149671db827cdb23f45203154b6c2b19bb35ec3399c777