[INFO] cloning repository https://github.com/szhongren/crafting-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/szhongren/crafting-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Fcrafting-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Fcrafting-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02ab467ca0ba1f4e882951f73da5cd655b3a2231
[INFO] checking szhongren/crafting-interpreter against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Fcrafting-interpreter" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/szhongren/crafting-interpreter on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/szhongren/crafting-interpreter
[INFO] finished tweaking git repo https://github.com/szhongren/crafting-interpreter
[INFO] tweaked toml for git repo https://github.com/szhongren/crafting-interpreter written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/szhongren/crafting-interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 017f14dae782052321e9b7caba70c8356f1e6f698cdd46c141306568dfdfb840
[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" "017f14dae782052321e9b7caba70c8356f1e6f698cdd46c141306568dfdfb840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "017f14dae782052321e9b7caba70c8356f1e6f698cdd46c141306568dfdfb840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017f14dae782052321e9b7caba70c8356f1e6f698cdd46c141306568dfdfb840", kill_on_drop: false }`
[INFO] [stdout] 017f14dae782052321e9b7caba70c8356f1e6f698cdd46c141306568dfdfb840
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ebad02b8e237bc08ff7dd9f2e06354e220616fd26500d85ea3f98ba81876865
[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" "5ebad02b8e237bc08ff7dd9f2e06354e220616fd26500d85ea3f98ba81876865", kill_on_drop: false }`
[INFO] [stderr]     Checking crafting-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `expression`
[INFO] [stdout]    --> src/lox/interpreter.rs:249:27
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn resolve(&self, expression: &Expr, depth: usize) {}
[INFO] [stdout]     |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expression`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth`
[INFO] [stdout]    --> src/lox/interpreter.rs:249:46
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn resolve(&self, expression: &Expr, depth: usize) {}
[INFO] [stdout]     |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expression`
[INFO] [stdout]    --> src/lox/interpreter.rs:249:27
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn resolve(&self, expression: &Expr, depth: usize) {}
[INFO] [stdout]     |                           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expression`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth`
[INFO] [stdout]    --> src/lox/interpreter.rs:249:46
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn resolve(&self, expression: &Expr, depth: usize) {}
[INFO] [stdout]     |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve`
[INFO] [stdout]    --> src/lox/interpreter.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn resolve(&self, expression: &Expr, depth: usize) {}
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Resolver`
[INFO] [stdout]  --> src/lox/resolver.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Resolver {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lox/resolver.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(interpreter: Interpreter) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve`
[INFO] [stdout]   --> src/lox/resolver.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn resolve(&mut self, statements: &Vec<Stmt>) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_statement`
[INFO] [stdout]   --> src/lox/resolver.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn resolve_statement(&mut self, statement: &Stmt) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_expression`
[INFO] [stdout]   --> src/lox/resolver.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn resolve_expression(&self, expression: &Expr) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_local`
[INFO] [stdout]    --> src/lox/resolver.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn resolve_local(&self, expression: &Expr, name: &Token) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_function`
[INFO] [stdout]    --> src/lox/resolver.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn resolve_function(&mut self, function: &Stmt) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `begin_scope`
[INFO] [stdout]    --> src/lox/resolver.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn begin_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `end_scope`
[INFO] [stdout]    --> src/lox/resolver.rs:141:8
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn end_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `declare`
[INFO] [stdout]    --> src/lox/resolver.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn declare(&mut self, name: &Token) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `define`
[INFO] [stdout]    --> src/lox/resolver.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn define(&mut self, name: &Token) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve`
[INFO] [stdout]    --> src/lox/interpreter.rs:249:12
[INFO] [stdout]     |
[INFO] [stdout] 249 |     pub fn resolve(&self, expression: &Expr, depth: usize) {}
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Resolver`
[INFO] [stdout]  --> src/lox/resolver.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Resolver {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lox/resolver.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(interpreter: Interpreter) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve`
[INFO] [stdout]   --> src/lox/resolver.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn resolve(&mut self, statements: &Vec<Stmt>) -> Result<(), String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_statement`
[INFO] [stdout]   --> src/lox/resolver.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn resolve_statement(&mut self, statement: &Stmt) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_expression`
[INFO] [stdout]   --> src/lox/resolver.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn resolve_expression(&self, expression: &Expr) -> Result<(), String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_local`
[INFO] [stdout]    --> src/lox/resolver.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn resolve_local(&self, expression: &Expr, name: &Token) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `resolve_function`
[INFO] [stdout]    --> src/lox/resolver.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn resolve_function(&mut self, function: &Stmt) -> Result<(), String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `begin_scope`
[INFO] [stdout]    --> src/lox/resolver.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn begin_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `end_scope`
[INFO] [stdout]    --> src/lox/resolver.rs:141:8
[INFO] [stdout]     |
[INFO] [stdout] 141 |     fn end_scope(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `declare`
[INFO] [stdout]    --> src/lox/resolver.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn declare(&mut self, name: &Token) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `define`
[INFO] [stdout]    --> src/lox/resolver.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn define(&mut self, name: &Token) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "5ebad02b8e237bc08ff7dd9f2e06354e220616fd26500d85ea3f98ba81876865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ebad02b8e237bc08ff7dd9f2e06354e220616fd26500d85ea3f98ba81876865", kill_on_drop: false }`
[INFO] [stdout] 5ebad02b8e237bc08ff7dd9f2e06354e220616fd26500d85ea3f98ba81876865