[INFO] cloning repository https://github.com/JedCPT/rust-monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JedCPT/rust-monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJedCPT%2Frust-monkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJedCPT%2Frust-monkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e058e7ffef73921326c5cf1473dc3a8663ef52ce
[INFO] checking JedCPT/rust-monkey against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJedCPT%2Frust-monkey" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JedCPT/rust-monkey on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JedCPT/rust-monkey
[INFO] finished tweaking git repo https://github.com/JedCPT/rust-monkey
[INFO] tweaked toml for git repo https://github.com/JedCPT/rust-monkey written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/JedCPT/rust-monkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e10b773e7e0af55942278a52e71ebf89c05796eff10c628fa659b2b6737c012f
[INFO] running `Command { std: "docker" "start" "-a" "e10b773e7e0af55942278a52e71ebf89c05796eff10c628fa659b2b6737c012f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e10b773e7e0af55942278a52e71ebf89c05796eff10c628fa659b2b6737c012f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10b773e7e0af55942278a52e71ebf89c05796eff10c628fa659b2b6737c012f", kill_on_drop: false }`
[INFO] [stdout] e10b773e7e0af55942278a52e71ebf89c05796eff10c628fa659b2b6737c012f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8399396b6421adb5db9f33d457536a04344919aa11e0e8b656fea95419fc0f6a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8399396b6421adb5db9f33d457536a04344919aa11e0e8b656fea95419fc0f6a", kill_on_drop: false }`
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking rust-monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:55:56
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object>;
[INFO] [stdout]    |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:68:20
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub value: Box<Node>,
[INFO] [stdout]    |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub value: Box<Node>,
[INFO] [stdout]    |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub value: Box<Node>,
[INFO] [stdout]    |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub statements: Vec<Box<Node>>,
[INFO] [stdout]    |                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:105:20
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub right: Box<Node>,
[INFO] [stdout]     |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub left: Box<Node>,
[INFO] [stdout]     |                   ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub right: Box<Node>,
[INFO] [stdout]     |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub condition: Box<Node>,
[INFO] [stdout]     |                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:117:26
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub consequence: Box<Node>,
[INFO] [stdout]     |                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:118:33
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub alternative: Option<Box<Node>>,
[INFO] [stdout]     |                                 ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:123:32
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub parameters: Rc<Vec<Box<Node>>>,
[INFO] [stdout]     |                                ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:124:22
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub body: Rc<Box<Node>>,
[INFO] [stdout]     |                      ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:129:28
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub arguments: Vec<Box<Node>>,
[INFO] [stdout]     |                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:130:30
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub func_identifier: Box<Node>, // ast::IdentifierExpression
[INFO] [stdout]     |                              ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:144:56
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:173:56
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:187:56
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:203:56
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:204:28
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let mut result: Rc<Object> = Rc::new(object::Null {});
[INFO] [stdout]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:231:57
[INFO] [stdout]     |
[INFO] [stdout] 231 |     fn eval(&self, _env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                         ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:245:57
[INFO] [stdout]     |
[INFO] [stdout] 245 |     fn eval(&self, _env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                         ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:259:56
[INFO] [stdout]     |
[INFO] [stdout] 259 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:319:46
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn eval_minus_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                              ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:319:61
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn eval_minus_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                             ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:333:45
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn eval_bang_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                             ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:333:60
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn eval_bang_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:353:56
[INFO] [stdout]     |
[INFO] [stdout] 353 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:380:55
[INFO] [stdout]     |
[INFO] [stdout] 380 |     fn eval_boolean_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:380:75
[INFO] [stdout]     |
[INFO] [stdout] 380 |     fn eval_boolean_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                           ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:380:90
[INFO] [stdout]     |
[INFO] [stdout] 380 |     fn eval_boolean_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                                          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:397:55
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn eval_integer_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:397:75
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn eval_integer_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                           ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:397:90
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn eval_integer_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                                          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:443:56
[INFO] [stdout]     |
[INFO] [stdout] 443 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:482:56
[INFO] [stdout]     |
[INFO] [stdout] 482 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:534:56
[INFO] [stdout]     |
[INFO] [stdout] 534 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:562:70
[INFO] [stdout]     |
[INFO] [stdout] 562 |     fn eval_arguments(&self, env: Rc<RefCell<Enviroment>>) -> Vec<Rc<Object>> {
[INFO] [stdout]     |                                                                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:563:35
[INFO] [stdout]     |
[INFO] [stdout] 563 |         let mut to_return: Vec<Rc<Object>> = Vec::new();
[INFO] [stdout]     |                                   ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:564:28
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut result: Rc<Object>;
[INFO] [stdout]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:580:18
[INFO] [stdout]     |
[INFO] [stdout] 580 |         func: Rc<Object>,
[INFO] [stdout]     |                  ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:581:22
[INFO] [stdout]     |
[INFO] [stdout] 581 |         args: Vec<Rc<Object>>,
[INFO] [stdout]     |                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:583:13
[INFO] [stdout]     |
[INFO] [stdout] 583 |     ) -> Rc<Object> {
[INFO] [stdout]     |             ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:626:56
[INFO] [stdout]     |
[INFO] [stdout] 626 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enviroment/mod.rs:23:39
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub variables: HashMap<String, Rc<Object>>,
[INFO] [stdout]    |                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enviroment/mod.rs:40:53
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn insert(&mut self, key: String, value: Rc<Object>) {
[INFO] [stdout]    |                                                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enviroment/mod.rs:45:50
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn get(&self, key: &String) -> Option<Rc<Object>> {
[INFO] [stdout]    |                                                  ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/object/mod.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub body: Rc<Box<Node>>,
[INFO] [stdout]    |                      ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/object/mod.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub parameters: Rc<Vec<Box<Node>>>,
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/mod.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub statements: Vec<Box<Node>>,
[INFO] [stdout]    |                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/mod.rs:75:39
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut statement: Option<Box<Node>>;
[INFO] [stdout]    |                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:166:49
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn parse_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                 ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:174:53
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn parse_let_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                     ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:212:56
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn parse_return_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:234:60
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn parse_expression_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:255:55
[INFO] [stdout]     |
[INFO] [stdout] 255 |     fn parse_block_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:279:74
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn parse_expression(&mut self, precedence: Precedence) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:317:61
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn parse_identifier_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:324:55
[INFO] [stdout]     |
[INFO] [stdout] 324 |     fn parse_bool_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:332:59
[INFO] [stdout]     |
[INFO] [stdout] 332 |     fn parse_integral_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                           ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:347:57
[INFO] [stdout]     |
[INFO] [stdout] 347 |     fn parse_prefix_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:366:52
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn parse_infix_expression(&mut self, left: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:366:73
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn parse_infix_expression(&mut self, left: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:387:58
[INFO] [stdout]     |
[INFO] [stdout] 387 |     fn parse_grouped_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:399:57
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn parse_ifelse_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:432:41
[INFO] [stdout]     |
[INFO] [stdout] 432 |         let mut alternative: Option<Box<Node>> = None;
[INFO] [stdout]     |                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:451:55
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn parse_func_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:460:37
[INFO] [stdout]     |
[INFO] [stdout] 460 |         let mut parameters: Vec<Box<Node>> = Vec::new();
[INFO] [stdout]     |                                     ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:492:51
[INFO] [stdout]     |
[INFO] [stdout] 492 |     fn parse_call_expression(&mut self, func: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                   ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:492:72
[INFO] [stdout]     |
[INFO] [stdout] 492 |     fn parse_call_expression(&mut self, func: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut result: Rc<object::Object>;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:55:56
[INFO] [stdout]    |
[INFO] [stdout] 55 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object>;
[INFO] [stdout]    |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:68:20
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub value: Box<Node>,
[INFO] [stdout]    |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub value: Box<Node>,
[INFO] [stdout]    |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub value: Box<Node>,
[INFO] [stdout]    |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/mod.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub statements: Vec<Box<Node>>,
[INFO] [stdout]    |                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:105:20
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub right: Box<Node>,
[INFO] [stdout]     |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub left: Box<Node>,
[INFO] [stdout]     |                   ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub right: Box<Node>,
[INFO] [stdout]     |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:116:24
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub condition: Box<Node>,
[INFO] [stdout]     |                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:117:26
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub consequence: Box<Node>,
[INFO] [stdout]     |                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:118:33
[INFO] [stdout]     |
[INFO] [stdout] 118 |     pub alternative: Option<Box<Node>>,
[INFO] [stdout]     |                                 ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:123:32
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub parameters: Rc<Vec<Box<Node>>>,
[INFO] [stdout]     |                                ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:124:22
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub body: Rc<Box<Node>>,
[INFO] [stdout]     |                      ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:129:28
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub arguments: Vec<Box<Node>>,
[INFO] [stdout]     |                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:130:30
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub func_identifier: Box<Node>, // ast::IdentifierExpression
[INFO] [stdout]     |                              ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:144:56
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:173:56
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:187:56
[INFO] [stdout]     |
[INFO] [stdout] 187 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:203:56
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:204:28
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let mut result: Rc<Object> = Rc::new(object::Null {});
[INFO] [stdout]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:231:57
[INFO] [stdout]     |
[INFO] [stdout] 231 |     fn eval(&self, _env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                         ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:245:57
[INFO] [stdout]     |
[INFO] [stdout] 245 |     fn eval(&self, _env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                         ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:259:56
[INFO] [stdout]     |
[INFO] [stdout] 259 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:319:46
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn eval_minus_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                              ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:319:61
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn eval_minus_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                             ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:333:45
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn eval_bang_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                             ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:333:60
[INFO] [stdout]     |
[INFO] [stdout] 333 |     fn eval_bang_operator(&self, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:353:56
[INFO] [stdout]     |
[INFO] [stdout] 353 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:380:55
[INFO] [stdout]     |
[INFO] [stdout] 380 |     fn eval_boolean_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:380:75
[INFO] [stdout]     |
[INFO] [stdout] 380 |     fn eval_boolean_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                           ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:380:90
[INFO] [stdout]     |
[INFO] [stdout] 380 |     fn eval_boolean_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                                          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:397:55
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn eval_integer_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:397:75
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn eval_integer_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                           ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:397:90
[INFO] [stdout]     |
[INFO] [stdout] 397 |     fn eval_integer_infix_expression(&self, left: &Rc<Object>, right: &Rc<Object>) -> Rc<Object> {
[INFO] [stdout]     |                                                                                          ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:443:56
[INFO] [stdout]     |
[INFO] [stdout] 443 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:482:56
[INFO] [stdout]     |
[INFO] [stdout] 482 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:534:56
[INFO] [stdout]     |
[INFO] [stdout] 534 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:562:70
[INFO] [stdout]     |
[INFO] [stdout] 562 |     fn eval_arguments(&self, env: Rc<RefCell<Enviroment>>) -> Vec<Rc<Object>> {
[INFO] [stdout]     |                                                                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:563:35
[INFO] [stdout]     |
[INFO] [stdout] 563 |         let mut to_return: Vec<Rc<Object>> = Vec::new();
[INFO] [stdout]     |                                   ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:564:28
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut result: Rc<Object>;
[INFO] [stdout]     |                            ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:580:18
[INFO] [stdout]     |
[INFO] [stdout] 580 |         func: Rc<Object>,
[INFO] [stdout]     |                  ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:581:22
[INFO] [stdout]     |
[INFO] [stdout] 581 |         args: Vec<Rc<Object>>,
[INFO] [stdout]     |                      ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:583:13
[INFO] [stdout]     |
[INFO] [stdout] 583 |     ) -> Rc<Object> {
[INFO] [stdout]     |             ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ast/mod.rs:626:56
[INFO] [stdout]     |
[INFO] [stdout] 626 |     fn eval(&self, env: Rc<RefCell<Enviroment>>) -> Rc<Object> {
[INFO] [stdout]     |                                                        ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enviroment/mod.rs:23:39
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub variables: HashMap<String, Rc<Object>>,
[INFO] [stdout]    |                                       ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enviroment/mod.rs:40:53
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn insert(&mut self, key: String, value: Rc<Object>) {
[INFO] [stdout]    |                                                     ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/enviroment/mod.rs:45:50
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn get(&self, key: &String) -> Option<Rc<Object>> {
[INFO] [stdout]    |                                                  ^^^^^^ help: use `dyn`: `dyn Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/object/mod.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub body: Rc<Box<Node>>,
[INFO] [stdout]    |                      ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/object/mod.rs:60:32
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub parameters: Rc<Vec<Box<Node>>>,
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/mod.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub statements: Vec<Box<Node>>,
[INFO] [stdout]    |                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/parser/mod.rs:75:39
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let mut statement: Option<Box<Node>>;
[INFO] [stdout]    |                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:166:49
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn parse_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                 ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:174:53
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn parse_let_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                     ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:212:56
[INFO] [stdout]     |
[INFO] [stdout] 212 |     fn parse_return_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:234:60
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn parse_expression_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:255:55
[INFO] [stdout]     |
[INFO] [stdout] 255 |     fn parse_block_statement(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:279:74
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn parse_expression(&mut self, precedence: Precedence) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:317:61
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn parse_identifier_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:324:55
[INFO] [stdout]     |
[INFO] [stdout] 324 |     fn parse_bool_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:332:59
[INFO] [stdout]     |
[INFO] [stdout] 332 |     fn parse_integral_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                           ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:347:57
[INFO] [stdout]     |
[INFO] [stdout] 347 |     fn parse_prefix_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:366:52
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn parse_infix_expression(&mut self, left: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:366:73
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn parse_infix_expression(&mut self, left: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:387:58
[INFO] [stdout]     |
[INFO] [stdout] 387 |     fn parse_grouped_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:399:57
[INFO] [stdout]     |
[INFO] [stdout] 399 |     fn parse_ifelse_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:432:41
[INFO] [stdout]     |
[INFO] [stdout] 432 |         let mut alternative: Option<Box<Node>> = None;
[INFO] [stdout]     |                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:451:55
[INFO] [stdout]     |
[INFO] [stdout] 451 |     fn parse_func_expression(&mut self) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:460:37
[INFO] [stdout]     |
[INFO] [stdout] 460 |         let mut parameters: Vec<Box<Node>> = Vec::new();
[INFO] [stdout]     |                                     ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:492:51
[INFO] [stdout]     |
[INFO] [stdout] 492 |     fn parse_call_expression(&mut self, func: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                   ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser/mod.rs:492:72
[INFO] [stdout]     |
[INFO] [stdout] 492 |     fn parse_call_expression(&mut self, func: Box<Node>) -> Option<Box<Node>> {
[INFO] [stdout]     |                                                                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut result: Rc<object::Object>;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn object::Object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]   --> src/lexer/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     position: usize,      // current position in input (points to current char)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 72 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]   --> src/lexer/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     position: usize,      // current position in input (points to current char)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 72 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "8399396b6421adb5db9f33d457536a04344919aa11e0e8b656fea95419fc0f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8399396b6421adb5db9f33d457536a04344919aa11e0e8b656fea95419fc0f6a", kill_on_drop: false }`
[INFO] [stdout] 8399396b6421adb5db9f33d457536a04344919aa11e0e8b656fea95419fc0f6a