[INFO] cloning repository https://github.com/kameczera/crafting-interpreters
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kameczera/crafting-interpreters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkameczera%2Fcrafting-interpreters", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkameczera%2Fcrafting-interpreters'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37eab3f15eb9d5ab4ac3c41e39a604cec8e36003
[INFO] checking kameczera/crafting-interpreters against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkameczera%2Fcrafting-interpreters" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kameczera/crafting-interpreters on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kameczera/crafting-interpreters
[INFO] finished tweaking git repo https://github.com/kameczera/crafting-interpreters
[INFO] tweaked toml for git repo https://github.com/kameczera/crafting-interpreters written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kameczera/crafting-interpreters 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 180a2c9a1b37f4e1168e63df6f18f181a9dda0ae0f70628d436cad00b035995d
[INFO] running `Command { std: "docker" "start" "-a" "180a2c9a1b37f4e1168e63df6f18f181a9dda0ae0f70628d436cad00b035995d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "180a2c9a1b37f4e1168e63df6f18f181a9dda0ae0f70628d436cad00b035995d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "180a2c9a1b37f4e1168e63df6f18f181a9dda0ae0f70628d436cad00b035995d", kill_on_drop: false }`
[INFO] [stdout] 180a2c9a1b37f4e1168e63df6f18f181a9dda0ae0f70628d436cad00b035995d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0383e96ba01abaac9a512f8e70f2f088e8c93521ac34d5a14b24442d552997e1
[INFO] running `Command { std: "docker" "start" "-a" "0383e96ba01abaac9a512f8e70f2f088e8c93521ac34d5a14b24442d552997e1", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/lox/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::expr`
[INFO] [stdout]  --> src/lox/lang.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::lox::expr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::interpreter`
[INFO] [stdout]  --> src/lox/lang.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lox::interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lox/parser.rs:419:16
[INFO] [stdout]     |
[INFO] [stdout] 419 |             if (self.check(token_type)) {
[INFO] [stdout]     |                ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 419 -             if (self.check(token_type)) {
[INFO] [stdout] 419 +             if self.check(token_type) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lox/interpreter.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     objects::{self, *},
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/lox/interpreter.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout]     |                               ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 200 -                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout] 200 +                 } else if let Object::String(left_value) = values.0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/lox/environment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/lox/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::expr`
[INFO] [stdout]  --> src/lox/lang.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::lox::expr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::interpreter`
[INFO] [stdout]  --> src/lox/lang.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lox::interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lox/parser.rs:419:16
[INFO] [stdout]     |
[INFO] [stdout] 419 |             if (self.check(token_type)) {
[INFO] [stdout]     |                ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 419 -             if (self.check(token_type)) {
[INFO] [stdout] 419 +             if self.check(token_type) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lox/interpreter.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     objects::{self, *},
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/lox/interpreter.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout]     |                               ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 200 -                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout] 200 +                 } else if let Object::String(left_value) = values.0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/lox/environment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lox/interpreter.rs:318:13
[INFO] [stdout]     |
[INFO] [stdout] 318 |         let mut right = self.evaluate(*expr.right)?;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/lox/interpreter.rs:348:31
[INFO] [stdout]     |
[INFO] [stdout] 348 |         if let Object::Number(number) = operand {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lox/interpreter.rs:318:13
[INFO] [stdout]     |
[INFO] [stdout] 318 |         let mut right = self.evaluate(*expr.right)?;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/lox/interpreter.rs:348:31
[INFO] [stdout]     |
[INFO] [stdout] 348 |         if let Object::Number(number) = operand {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |         if let Object::String(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Object::Number(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string` and `to_string_lexeme` are never used
[INFO] [stdout]   --> src/lox/token.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn to_string_lexeme(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `error` is never used
[INFO] [stdout]   --> src/lox/lang.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Lox {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn error(&mut self, line: u32, message: String) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_father` is never used
[INFO] [stdout]   --> src/lox/environment.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn set_father(&mut self, enclosing: Rc<RefCell<Environment<'a>>>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `bool`, `is_string`, `string`, and `is_number` are never used
[INFO] [stdout]   --> src/lox/objects.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Object {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn bool(self) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn is_string(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn string(self) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn is_number(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |         if let Object::String(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Object::Number(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/parser.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 277 |         let _ = self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string` and `to_string_lexeme` are never used
[INFO] [stdout]   --> src/lox/token.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn to_string_lexeme(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `error` is never used
[INFO] [stdout]   --> src/lox/lang.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Lox {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn error(&mut self, line: u32, message: String) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_father` is never used
[INFO] [stdout]   --> src/lox/environment.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn set_father(&mut self, enclosing: Rc<RefCell<Environment<'a>>>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `bool`, `is_string`, `string`, and `is_number` are never used
[INFO] [stdout]   --> src/lox/objects.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Object {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn bool(self) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn is_string(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn string(self) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn is_number(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |             self.execute(*if_branch.then_branch);
[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] 104 |             let _ = self.execute(*if_branch.then_branch);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     self.execute(*if_branch.else_branch);
[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] 109 |                     let _ = self.execute(*if_branch.else_branch);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/parser.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 277 |         let _ = self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |             self.execute(*if_branch.then_branch);
[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] 104 |             let _ = self.execute(*if_branch.then_branch);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     self.execute(*if_branch.else_branch);
[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] 109 |                     let _ = self.execute(*if_branch.else_branch);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "0383e96ba01abaac9a512f8e70f2f088e8c93521ac34d5a14b24442d552997e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0383e96ba01abaac9a512f8e70f2f088e8c93521ac34d5a14b24442d552997e1", kill_on_drop: false }`
[INFO] [stdout] 0383e96ba01abaac9a512f8e70f2f088e8c93521ac34d5a14b24442d552997e1
[INFO] checking kameczera/crafting-interpreters against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkameczera%2Fcrafting-interpreters" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kameczera/crafting-interpreters on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kameczera/crafting-interpreters
[INFO] finished tweaking git repo https://github.com/kameczera/crafting-interpreters
[INFO] tweaked toml for git repo https://github.com/kameczera/crafting-interpreters written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kameczera/crafting-interpreters 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2705c0dc8bdecca55e9e3033ae06840439e264202f286504dcd45524e1546bfe
[INFO] running `Command { std: "docker" "start" "-a" "2705c0dc8bdecca55e9e3033ae06840439e264202f286504dcd45524e1546bfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2705c0dc8bdecca55e9e3033ae06840439e264202f286504dcd45524e1546bfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2705c0dc8bdecca55e9e3033ae06840439e264202f286504dcd45524e1546bfe", kill_on_drop: false }`
[INFO] [stdout] 2705c0dc8bdecca55e9e3033ae06840439e264202f286504dcd45524e1546bfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98c52814af7282f4b8ffe22e01cf5cb588dcfe79f835247b0a0cede4bbf28a0d
[INFO] running `Command { std: "docker" "start" "-a" "98c52814af7282f4b8ffe22e01cf5cb588dcfe79f835247b0a0cede4bbf28a0d", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/lox/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::expr`
[INFO] [stdout]  --> src/lox/lang.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::lox::expr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::interpreter`
[INFO] [stdout]  --> src/lox/lang.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lox::interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lox/parser.rs:419:16
[INFO] [stdout]     |
[INFO] [stdout] 419 |             if (self.check(token_type)) {
[INFO] [stdout]     |                ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 419 -             if (self.check(token_type)) {
[INFO] [stdout] 419 +             if self.check(token_type) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lox/interpreter.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     objects::{self, *},
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/lox/interpreter.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout]     |                               ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 200 -                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout] 200 +                 } else if let Object::String(left_value) = values.0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/lox/environment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/lox/lang.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::expr`
[INFO] [stdout]  --> src/lox/lang.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::lox::expr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lox::interpreter`
[INFO] [stdout]  --> src/lox/lang.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::lox::interpreter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lox/parser.rs:419:16
[INFO] [stdout]     |
[INFO] [stdout] 419 |             if (self.check(token_type)) {
[INFO] [stdout]     |                ^                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 419 -             if (self.check(token_type)) {
[INFO] [stdout] 419 +             if self.check(token_type) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lox/interpreter.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     objects::{self, *},
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/lox/interpreter.rs:200:31
[INFO] [stdout]     |
[INFO] [stdout] 200 |                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout]     |                               ^                          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 200 -                 } else if let (Object::String(left_value)) = values.0 {
[INFO] [stdout] 200 +                 } else if let Object::String(left_value) = values.0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/lox/environment.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lox/interpreter.rs:318:13
[INFO] [stdout]     |
[INFO] [stdout] 318 |         let mut right = self.evaluate(*expr.right)?;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/lox/interpreter.rs:348:31
[INFO] [stdout]     |
[INFO] [stdout] 348 |         if let Object::Number(number) = operand {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |         if let Object::String(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Object::Number(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string` and `to_string_lexeme` are never used
[INFO] [stdout]   --> src/lox/token.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn to_string_lexeme(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `error` is never used
[INFO] [stdout]   --> src/lox/lang.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Lox {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn error(&mut self, line: u32, message: String) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_father` is never used
[INFO] [stdout]   --> src/lox/environment.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn set_father(&mut self, enclosing: Rc<RefCell<Environment<'a>>>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `bool`, `is_string`, `string`, and `is_number` are never used
[INFO] [stdout]   --> src/lox/objects.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Object {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn bool(self) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn is_string(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn string(self) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn is_number(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/parser.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 277 |         let _ = self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 65 |       pub fn binary(left: Expr, operator: Token, right: Expr) -> Self {
[INFO] [stdout]    |                     ----------                   ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 66 |           Expr::Binary(Binary {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 67 | |             left: Box::new(left),
[INFO] [stdout] 68 | |             operator: operator,
[INFO] [stdout] 69 | |             right: Box::new(right),
[INFO] [stdout] 70 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |       pub fn ternary(expression: Expr, true_part: Expr, false_part: Expr) -> Self {
[INFO] [stdout]    |                      ----------------  ---------------  ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                      |                 |
[INFO] [stdout]    |                      |                 these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                      these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 74 |           Expr::Ternary(Ternary {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] 75 | |             expression: Box::new(expression),
[INFO] [stdout] 76 | |             true_part: Box::new(true_part),
[INFO] [stdout] 77 | |             false_part: Box::new(false_part),
[INFO] [stdout] 78 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:82:22
[INFO] [stdout]    |
[INFO] [stdout] 81 |       pub fn unary(operator: Token, right: Expr) -> Self {
[INFO] [stdout]    |                                     ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 82 |           Expr::Unary (Unary {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 83 | |             operator: operator,
[INFO] [stdout] 84 | |             right: Box::new(right),
[INFO] [stdout] 85 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:95:23
[INFO] [stdout]    |
[INFO] [stdout] 94 |       pub fn logical(left: Expr, operator: Token, right: Expr) -> Self {
[INFO] [stdout]    |                      ----------                   ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 95 |           Expr::Logical(Logical {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] 96 | |             left: Box::new(left),
[INFO] [stdout] 97 | |             operator: operator,
[INFO] [stdout] 98 | |             right: Box::new(right),
[INFO] [stdout] 99 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lox/expr.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |       pub fn grouping(expression: Expr) -> Self {
[INFO] [stdout]     |                       ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 103 |           Expr::Grouping(Grouping {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 104 | |             expression: Box::new(expression),
[INFO] [stdout] 105 | |         })
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lox/expr.rs:114:22
[INFO] [stdout]     |
[INFO] [stdout] 113 |       pub fn assign(name: Token, value: Expr) -> Self {
[INFO] [stdout]     |                                  ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 114 |           Expr::Assign(Assign {
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 115 | |             name: name,
[INFO] [stdout] 116 | |             value: Box::new(value),
[INFO] [stdout] 117 | |         })
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |             self.execute(*if_branch.then_branch);
[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] 104 |             let _ = self.execute(*if_branch.then_branch);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     self.execute(*if_branch.else_branch);
[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] 109 |                     let _ = self.execute(*if_branch.else_branch);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lox/interpreter.rs:162:15
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn visit_assign_expr(&mut self, expr: Assign) -> Result<Object, (Token, String)> {
[INFO] [stdout]     |                                     ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 161 |         let value = self.evaluate(*expr.value)?;
[INFO] [stdout] 162 |         match self.environment.borrow_mut().assign(expr.name, &value) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:50:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |       pub fn expression(expression: Expr) -> Self {
[INFO] [stdout]    |                         ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 50 |           Statement::Expression(Expression {
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 51 | |             expression: Box::new(expression),
[INFO] [stdout] 52 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:56:26
[INFO] [stdout]    |
[INFO] [stdout] 55 |       pub fn print(expression: Expr) -> Self {
[INFO] [stdout]    |                    ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 56 |           Statement::Print(Print {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 57 | |             expression: Box::new(expression),
[INFO] [stdout] 58 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 61 |       pub fn if_branch(condition: Expr, then_branch: Statement, else_brach: Statement) -> Self {
[INFO] [stdout]    |                        ---------------  ----------------------  --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                        |                |
[INFO] [stdout]    |                        |                these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                        these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 62 |           Statement::If(If {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] 63 | |             condition: Box::new(condition),
[INFO] [stdout] 64 | |             then_branch: Box::new(then_branch),
[INFO] [stdout] 65 | |             else_branch: Box::new(else_brach)
[INFO] [stdout] 66 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |       pub fn while_branch(condition: Expr, body: Statement) -> Self {
[INFO] [stdout]    |                           ---------------  --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 70 |           Statement::While(While {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 71 | |             condition: Box::new(condition),
[INFO] [stdout] 72 | |             body: Box::new(body),
[INFO] [stdout] 73 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 76 |       pub fn var(name: Token, initializer: Expr) -> Self {
[INFO] [stdout]    |                               ----------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 77 |           Statement::Var(Var {
[INFO] [stdout]    |  ________________________^
[INFO] [stdout] 78 | |             name: name,
[INFO] [stdout] 79 | |             initializer: Box::new(initializer),
[INFO] [stdout] 80 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:84:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |       pub fn block(statements: Vec<Statement>) -> Self {
[INFO] [stdout]    |                    -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 84 |           Statement::Block(Block {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 85 | |             statements: statements,
[INFO] [stdout] 86 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lox` (bin "lox" test) due to 14 previous errors; 18 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lox/interpreter.rs:318:13
[INFO] [stdout]     |
[INFO] [stdout] 318 |         let mut right = self.evaluate(*expr.right)?;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]    --> src/lox/interpreter.rs:348:31
[INFO] [stdout]     |
[INFO] [stdout] 348 |         if let Object::Number(number) = operand {
[INFO] [stdout]     |                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:32:31
[INFO] [stdout]    |
[INFO] [stdout] 32 |         if let Object::String(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lox/objects.rs:58:31
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Object::Number(s) = self {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string` and `to_string_lexeme` are never used
[INFO] [stdout]   --> src/lox/token.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Token {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn to_string_lexeme(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `error` is never used
[INFO] [stdout]   --> src/lox/lang.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Lox {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn error(&mut self, line: u32, message: String) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_father` is never used
[INFO] [stdout]   --> src/lox/environment.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl<'a> Environment<'a> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn set_father(&mut self, enclosing: Rc<RefCell<Environment<'a>>>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `bool`, `is_string`, `string`, and `is_number` are never used
[INFO] [stdout]   --> src/lox/objects.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Object {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn bool(self) -> bool {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn is_string(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn string(self) -> String {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn is_number(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/parser.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 277 |         let _ = self.consume(TokenType::RightBrace, String::from("Expect '}' after block."));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 65 |       pub fn binary(left: Expr, operator: Token, right: Expr) -> Self {
[INFO] [stdout]    |                     ----------                   ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 66 |           Expr::Binary(Binary {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 67 | |             left: Box::new(left),
[INFO] [stdout] 68 | |             operator: operator,
[INFO] [stdout] 69 | |             right: Box::new(right),
[INFO] [stdout] 70 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 73 |       pub fn ternary(expression: Expr, true_part: Expr, false_part: Expr) -> Self {
[INFO] [stdout]    |                      ----------------  ---------------  ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                      |                 |
[INFO] [stdout]    |                      |                 these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                      these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 74 |           Expr::Ternary(Ternary {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] 75 | |             expression: Box::new(expression),
[INFO] [stdout] 76 | |             true_part: Box::new(true_part),
[INFO] [stdout] 77 | |             false_part: Box::new(false_part),
[INFO] [stdout] 78 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:82:22
[INFO] [stdout]    |
[INFO] [stdout] 81 |       pub fn unary(operator: Token, right: Expr) -> Self {
[INFO] [stdout]    |                                     ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 82 |           Expr::Unary (Unary {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 83 | |             operator: operator,
[INFO] [stdout] 84 | |             right: Box::new(right),
[INFO] [stdout] 85 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/expr.rs:95:23
[INFO] [stdout]    |
[INFO] [stdout] 94 |       pub fn logical(left: Expr, operator: Token, right: Expr) -> Self {
[INFO] [stdout]    |                      ----------                   ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 95 |           Expr::Logical(Logical {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] 96 | |             left: Box::new(left),
[INFO] [stdout] 97 | |             operator: operator,
[INFO] [stdout] 98 | |             right: Box::new(right),
[INFO] [stdout] 99 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lox/expr.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |       pub fn grouping(expression: Expr) -> Self {
[INFO] [stdout]     |                       ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 103 |           Expr::Grouping(Grouping {
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 104 | |             expression: Box::new(expression),
[INFO] [stdout] 105 | |         })
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lox/expr.rs:114:22
[INFO] [stdout]     |
[INFO] [stdout] 113 |       pub fn assign(name: Token, value: Expr) -> Self {
[INFO] [stdout]     |                                  ----------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 114 |           Expr::Assign(Assign {
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 115 | |             name: name,
[INFO] [stdout] 116 | |             value: Box::new(value),
[INFO] [stdout] 117 | |         })
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |             self.execute(*if_branch.then_branch);
[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] 104 |             let _ = self.execute(*if_branch.then_branch);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lox/interpreter.rs:109:21
[INFO] [stdout]     |
[INFO] [stdout] 109 |                     self.execute(*if_branch.else_branch);
[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] 109 |                     let _ = self.execute(*if_branch.else_branch);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/lox/interpreter.rs:162:15
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn visit_assign_expr(&mut self, expr: Assign) -> Result<Object, (Token, String)> {
[INFO] [stdout]     |                                     ------------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 161 |         let value = self.evaluate(*expr.value)?;
[INFO] [stdout] 162 |         match self.environment.borrow_mut().assign(expr.name, &value) {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:50:31
[INFO] [stdout]    |
[INFO] [stdout] 49 |       pub fn expression(expression: Expr) -> Self {
[INFO] [stdout]    |                         ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 50 |           Statement::Expression(Expression {
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 51 | |             expression: Box::new(expression),
[INFO] [stdout] 52 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:56:26
[INFO] [stdout]    |
[INFO] [stdout] 55 |       pub fn print(expression: Expr) -> Self {
[INFO] [stdout]    |                    ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 56 |           Statement::Print(Print {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 57 | |             expression: Box::new(expression),
[INFO] [stdout] 58 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 61 |       pub fn if_branch(condition: Expr, then_branch: Statement, else_brach: Statement) -> Self {
[INFO] [stdout]    |                        ---------------  ----------------------  --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                        |                |
[INFO] [stdout]    |                        |                these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                        these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 62 |           Statement::If(If {
[INFO] [stdout]    |  _______________________^
[INFO] [stdout] 63 | |             condition: Box::new(condition),
[INFO] [stdout] 64 | |             then_branch: Box::new(then_branch),
[INFO] [stdout] 65 | |             else_branch: Box::new(else_brach)
[INFO] [stdout] 66 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:70:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |       pub fn while_branch(condition: Expr, body: Statement) -> Self {
[INFO] [stdout]    |                           ---------------  --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 70 |           Statement::While(While {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 71 | |             condition: Box::new(condition),
[INFO] [stdout] 72 | |             body: Box::new(body),
[INFO] [stdout] 73 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 76 |       pub fn var(name: Token, initializer: Expr) -> Self {
[INFO] [stdout]    |                               ----------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 77 |           Statement::Var(Var {
[INFO] [stdout]    |  ________________________^
[INFO] [stdout] 78 | |             name: name,
[INFO] [stdout] 79 | |             initializer: Box::new(initializer),
[INFO] [stdout] 80 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/lox/stmt.rs:84:26
[INFO] [stdout]    |
[INFO] [stdout] 83 |       pub fn block(statements: Vec<Statement>) -> Self {
[INFO] [stdout]    |                    -------------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 84 |           Statement::Block(Block {
[INFO] [stdout]    |  __________________________^
[INFO] [stdout] 85 | |             statements: statements,
[INFO] [stdout] 86 | |         })
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lox` (bin "lox") due to 14 previous errors; 18 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "98c52814af7282f4b8ffe22e01cf5cb588dcfe79f835247b0a0cede4bbf28a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98c52814af7282f4b8ffe22e01cf5cb588dcfe79f835247b0a0cede4bbf28a0d", kill_on_drop: false }`
[INFO] [stdout] 98c52814af7282f4b8ffe22e01cf5cb588dcfe79f835247b0a0cede4bbf28a0d