[INFO] cloning repository https://github.com/pdrolopes/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/pdrolopes/crafting_interpreters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdrolopes%2Fcrafting_interpreters", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdrolopes%2Fcrafting_interpreters'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f2f293dfb30a0ba22fd24e1f105b6091559497f
[INFO] checking pdrolopes/crafting_interpreters against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpdrolopes%2Fcrafting_interpreters" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pdrolopes/crafting_interpreters on toolchain 81275a1445c7502a974118e0c69b795ab60be991
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pdrolopes/crafting_interpreters
[INFO] finished tweaking git repo https://github.com/pdrolopes/crafting_interpreters
[INFO] tweaked toml for git repo https://github.com/pdrolopes/crafting_interpreters written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/pdrolopes/crafting_interpreters already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dyn-clone v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 768cffd0920129a0a109884bcc2ea371fdce1dc74317088d7d701b111b3ecab2
[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" "768cffd0920129a0a109884bcc2ea371fdce1dc74317088d7d701b111b3ecab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "768cffd0920129a0a109884bcc2ea371fdce1dc74317088d7d701b111b3ecab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "768cffd0920129a0a109884bcc2ea371fdce1dc74317088d7d701b111b3ecab2", kill_on_drop: false }`
[INFO] [stdout] 768cffd0920129a0a109884bcc2ea371fdce1dc74317088d7d701b111b3ecab2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 805729733b1fb9e6480e0132fbf52bb9da330716f55b5bc82c679d87481d9692
[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" "805729733b1fb9e6480e0132fbf52bb9da330716f55b5bc82c679d87481d9692", kill_on_drop: false }`
[INFO] [stderr]     Checking dyn-clone v1.0.3
[INFO] [stderr]     Checking crafting_interpreters v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/ast_printer.rs:68:34
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/ast_printer.rs:68:47
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/ast_printer.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/ast_printer.rs:72:48
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callee`
[INFO] [stdout]   --> src/ast_printer.rs:76:35
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]    |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]   --> src/ast_printer.rs:76:50
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/ast_printer.rs:76:65
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]    |                                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> src/ast_printer.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         cond: &Expr,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `then_branch`
[INFO] [stdout]    --> src/ast_printer.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         then_branch: &Expr,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_then_branch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `else_branch`
[INFO] [stdout]    --> src/ast_printer.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         else_branch: &Expr,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_else_branch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/ast_printer.rs:135:39
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn visit_variable_expr(&mut self, token: &Token, _: u64) -> String {
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/ast_printer.rs:139:37
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn visit_assign_expr(&mut self, token: &Token, expr: &Expr, _: u64) -> String {
[INFO] [stdout]     |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast_printer.rs:139:52
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn visit_assign_expr(&mut self, token: &Token, expr: &Expr, _: u64) -> String {
[INFO] [stdout]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/ast_printer.rs:143:34
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/ast_printer.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/ast_printer.rs:147:35
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/ast_printer.rs:147:48
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callee`
[INFO] [stdout]    --> src/ast_printer.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/ast_printer.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/ast_printer.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]     |                                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth_map`
[INFO] [stdout]   --> src/lox.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let depth_map = Resolver::new().run(&stmts).map_err(|err| {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_depth_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/ast_printer.rs:68:34
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/ast_printer.rs:68:47
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]   --> src/ast_printer.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]   --> src/ast_printer.rs:72:48
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]    |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callee`
[INFO] [stdout]   --> src/ast_printer.rs:76:35
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]    |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]   --> src/ast_printer.rs:76:50
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/ast_printer.rs:76:65
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]    |                                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cond`
[INFO] [stdout]    --> src/ast_printer.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         cond: &Expr,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_cond`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `then_branch`
[INFO] [stdout]    --> src/ast_printer.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         then_branch: &Expr,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_then_branch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `else_branch`
[INFO] [stdout]    --> src/ast_printer.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         else_branch: &Expr,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_else_branch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/ast_printer.rs:135:39
[INFO] [stdout]     |
[INFO] [stdout] 135 |     fn visit_variable_expr(&mut self, token: &Token, _: u64) -> String {
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/ast_printer.rs:139:37
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn visit_assign_expr(&mut self, token: &Token, expr: &Expr, _: u64) -> String {
[INFO] [stdout]     |                                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/ast_printer.rs:139:52
[INFO] [stdout]     |
[INFO] [stdout] 139 |     fn visit_assign_expr(&mut self, token: &Token, expr: &Expr, _: u64) -> String {
[INFO] [stdout]     |                                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/ast_printer.rs:143:34
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/ast_printer.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn visit_logic_or(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/ast_printer.rs:147:35
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/ast_printer.rs:147:48
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn visit_logic_and(&mut self, left: &Expr, right: &Expr) -> String {
[INFO] [stdout]     |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callee`
[INFO] [stdout]    --> src/ast_printer.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/ast_printer.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/ast_printer.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, token: &Token, args: &[Expr]) -> String {
[INFO] [stdout]     |                                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth_map`
[INFO] [stdout]   --> src/lox.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let depth_map = Resolver::new().run(&stmts).map_err(|err| {
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_depth_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expr_id_scope_depth`
[INFO] [stdout]   --> src/interpreter.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     expr_id_scope_depth: HashMap<u64, u64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]   --> src/ast_printer.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn print(&mut self, expr: &Expr) -> String {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `expr_id_scope_depth`
[INFO] [stdout]   --> src/interpreter.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     expr_id_scope_depth: HashMap<u64, u64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             lox::run_file(args.last().unwrap());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             stmt::Visitor::visit_print_stmt(self, x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `next_token_is_EOF` should have a snake case name
[INFO] [stdout]    --> src/parser.rs:243:13
[INFO] [stdout]     |
[INFO] [stdout] 243 |         let next_token_is_EOF = self
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `next_token_is_eof`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             lox::run_file(args.last().unwrap());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |             stmt::Visitor::visit_print_stmt(self, x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `next_token_is_EOF` should have a snake case name
[INFO] [stdout]    --> src/parser.rs:243:13
[INFO] [stdout]     |
[INFO] [stdout] 243 |         let next_token_is_EOF = self
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `next_token_is_eof`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "805729733b1fb9e6480e0132fbf52bb9da330716f55b5bc82c679d87481d9692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "805729733b1fb9e6480e0132fbf52bb9da330716f55b5bc82c679d87481d9692", kill_on_drop: false }`
[INFO] [stdout] 805729733b1fb9e6480e0132fbf52bb9da330716f55b5bc82c679d87481d9692