[INFO] cloning repository https://github.com/umangshrestha/rlisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/umangshrestha/rlisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumangshrestha%2Frlisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumangshrestha%2Frlisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7f3b344f60c1aa4bc5b7297fa86681c55abc4c0
[INFO] checking umangshrestha/rlisp against try#bac5816c5f3d02cebd0599070af62d1782530294 for pr-150408
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumangshrestha%2Frlisp" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/umangshrestha/rlisp
[INFO] finished tweaking git repo https://github.com/umangshrestha/rlisp
[INFO] tweaked toml for git repo https://github.com/umangshrestha/rlisp written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/umangshrestha/rlisp on toolchain bac5816c5f3d02cebd0599070af62d1782530294
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/umangshrestha/rlisp 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" "+bac5816c5f3d02cebd0599070af62d1782530294" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking umangshrestha/rlisp against try#bac5816c5f3d02cebd0599070af62d1782530294 for pr-150408
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumangshrestha%2Frlisp" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/umangshrestha/rlisp
[INFO] finished tweaking git repo https://github.com/umangshrestha/rlisp
[INFO] tweaked toml for git repo https://github.com/umangshrestha/rlisp written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/umangshrestha/rlisp on toolchain bac5816c5f3d02cebd0599070af62d1782530294
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/umangshrestha/rlisp 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" "+bac5816c5f3d02cebd0599070af62d1782530294" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e2e548521ea0937874297e05efe835453f994862b2d2b249a9c54eb0fe1f643
[INFO] running `Command { std: "docker" "start" "-a" "2e2e548521ea0937874297e05efe835453f994862b2d2b249a9c54eb0fe1f643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e2e548521ea0937874297e05efe835453f994862b2d2b249a9c54eb0fe1f643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e2e548521ea0937874297e05efe835453f994862b2d2b249a9c54eb0fe1f643", kill_on_drop: false }`
[INFO] [stdout] 2e2e548521ea0937874297e05efe835453f994862b2d2b249a9c54eb0fe1f643
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+bac5816c5f3d02cebd0599070af62d1782530294" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cccd06a92ae8311eba08d26f8a930e4b007d9c5418cff2d52df1f2540d67d00
[INFO] running `Command { std: "docker" "start" "-a" "6cccd06a92ae8311eba08d26f8a930e4b007d9c5418cff2d52df1f2540d67d00", kill_on_drop: false }`
[INFO] [stderr]     Checking rlisp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/ast/expr/mod.rs:1:62
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ErrorInfo, LiteralType, Object, Span, TokenInfo, TokenType};
[INFO] [stdout]   |                                                              ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/ast/expr/visitor.rs:1:57
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ErrorInfo, Expr, LiteralType, Object, Span, TokenType, TokenInfo};
[INFO] [stdout]   |                                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Object`
[INFO] [stdout]  --> src/ast/stmt/mod.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ErrorInfo, Expr, Object, Span};
[INFO] [stdout]   |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environment`
[INFO] [stdout]  --> src/object/function.rs:3:77
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Environment, Error, ErrorInfo, Interpretor, Object, Span, Stmt, environment};
[INFO] [stdout]   |                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `LiteralType`, and `TokenType`
[INFO] [stdout]  --> src/interpretor/mod.rs:4:50
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::Program, object::Function, Environment, Error, ErrorInfo, Expr, LiteralType, Object, Stmt,
[INFO] [stdout]   |                                                  ^^^^^                   ^^^^^^^^^^^
[INFO] [stdout] 5 |     TokenType,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/interpretor/expr.rs:1:79
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{visitor, ErrorInfo, Expr, Interpretor, LiteralType, Object, Span, TokenType, TokenInfo, Error};
[INFO] [stdout]   |                                                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/ast/expr/mod.rs:1:62
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ErrorInfo, LiteralType, Object, Span, TokenInfo, TokenType};
[INFO] [stdout]   |                                                              ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/ast/expr/visitor.rs:1:57
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ErrorInfo, Expr, LiteralType, Object, Span, TokenType, TokenInfo};
[INFO] [stdout]   |                                                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Object`
[INFO] [stdout]  --> src/ast/stmt/mod.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ErrorInfo, Expr, Object, Span};
[INFO] [stdout]   |                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environment`
[INFO] [stdout]  --> src/object/function.rs:3:77
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Environment, Error, ErrorInfo, Interpretor, Object, Span, Stmt, environment};
[INFO] [stdout]   |                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Error`, `LiteralType`, and `TokenType`
[INFO] [stdout]  --> src/interpretor/mod.rs:4:50
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::Program, object::Function, Environment, Error, ErrorInfo, Expr, LiteralType, Object, Stmt,
[INFO] [stdout]   |                                                  ^^^^^                   ^^^^^^^^^^^
[INFO] [stdout] 5 |     TokenType,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/interpretor/expr.rs:1:79
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{visitor, ErrorInfo, Expr, Interpretor, LiteralType, Object, Span, TokenType, TokenInfo, Error};
[INFO] [stdout]   |                                                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ast/stmt/mod.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 let mut s = String::new();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ast/stmt/mod.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut s = String::new();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/ast/stmt/mod.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 let mut s = String::new();
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/ast/stmt/mod.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 body,
[INFO] [stdout]     |                 ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/ast/stmt/mod.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut s = String::new();
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/interpretor/expr.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn visit_grouping_expr(&mut self, expr: &Box<Expr>, span: &Span) -> Result<Object, ErrorInfo> {
[INFO] [stdout]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/interpretor/expr.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let object = self.eval(object)?;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/interpretor/expr.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         object: &Box<Expr>,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpretor/expr.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         name: &String,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/interpretor/expr.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         value: &Box<Expr>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/interpretor/expr.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         span: &Span,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpretor/expr.rs:95:36
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn visit_super_expr(&mut self, name: &String, span: &Span) -> Result<Object, ErrorInfo> {
[INFO] [stdout]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/interpretor/expr.rs:95:51
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn visit_super_expr(&mut self, name: &String, span: &Span) -> Result<Object, ErrorInfo> {
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ast/stmt/mod.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 let mut s = String::new();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ast/stmt/mod.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut s = String::new();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/ast/stmt/mod.rs:113:21
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 let mut s = String::new();
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/ast/stmt/mod.rs:135:17
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 body,
[INFO] [stdout]     |                 ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/ast/stmt/mod.rs:138:21
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let mut s = String::new();
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/interpretor/stmt.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         name: &String,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `super_class`
[INFO] [stdout]    --> src/interpretor/stmt.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         super_class: &Option<String>,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_super_class`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `methods`
[INFO] [stdout]    --> src/interpretor/stmt.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         methods: &Vec<Stmt>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_methods`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/interpretor/stmt.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         span: &Span,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/interpretor/stmt.rs:111:36
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn visit_break_stmt(&mut self, span: &Span) -> Result<(), ErrorInfo> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/interpretor/stmt.rs:115:39
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn visit_continue_stmt(&mut self, span: &Span) -> Result<(), ErrorInfo> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/function.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 | /                     environment
[INFO] [stdout] 46 | |                         .define(param
[INFO] [stdout] 47 | |                             .clone(), argument.to_owned(), false);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let _ = environment
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/interpretor/expr.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn visit_grouping_expr(&mut self, expr: &Box<Expr>, span: &Span) -> Result<Object, ErrorInfo> {
[INFO] [stdout]    |                                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/interpretor/expr.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let object = self.eval(object)?;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/interpretor/expr.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         object: &Box<Expr>,
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpretor/expr.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         name: &String,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/interpretor/expr.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         value: &Box<Expr>,
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/interpretor/expr.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         span: &Span,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/interpretor/expr.rs:95:36
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn visit_super_expr(&mut self, name: &String, span: &Span) -> Result<Object, ErrorInfo> {
[INFO] [stdout]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/interpretor/expr.rs:95:51
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn visit_super_expr(&mut self, name: &String, span: &Span) -> Result<Object, ErrorInfo> {
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/interpretor/stmt.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |         name: &String,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `super_class`
[INFO] [stdout]    --> src/interpretor/stmt.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 104 |         super_class: &Option<String>,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_super_class`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `methods`
[INFO] [stdout]    --> src/interpretor/stmt.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         methods: &Vec<Stmt>,
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_methods`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/interpretor/stmt.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         span: &Span,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/interpretor/stmt.rs:111:36
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn visit_break_stmt(&mut self, span: &Span) -> Result<(), ErrorInfo> {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]    --> src/interpretor/stmt.rs:115:39
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn visit_continue_stmt(&mut self, span: &Span) -> Result<(), ErrorInfo> {
[INFO] [stdout]     |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/object/function.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 | /                     environment
[INFO] [stdout] 46 | |                         .define(param
[INFO] [stdout] 47 | |                             .clone(), argument.to_owned(), false);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     let _ = environment
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "6cccd06a92ae8311eba08d26f8a930e4b007d9c5418cff2d52df1f2540d67d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cccd06a92ae8311eba08d26f8a930e4b007d9c5418cff2d52df1f2540d67d00", kill_on_drop: false }`
[INFO] [stdout] 6cccd06a92ae8311eba08d26f8a930e4b007d9c5418cff2d52df1f2540d67d00
