[INFO] cloning repository https://github.com/suryamajhi/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suryamajhi/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuryamajhi%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuryamajhi%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d93d307367225045a57b079fffc4e68327a91efa
[INFO] checking suryamajhi/rlox against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuryamajhi%2Frlox" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/suryamajhi/rlox
[INFO] finished tweaking git repo https://github.com/suryamajhi/rlox
[INFO] tweaked toml for git repo https://github.com/suryamajhi/rlox written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/suryamajhi/rlox on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/suryamajhi/rlox 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" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking suryamajhi/rlox against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuryamajhi%2Frlox" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/suryamajhi/rlox
[INFO] finished tweaking git repo https://github.com/suryamajhi/rlox
[INFO] tweaked toml for git repo https://github.com/suryamajhi/rlox written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/suryamajhi/rlox on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/suryamajhi/rlox 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" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8b8e20bca0d65cfca18f0750e04fc544c9fdaa7217515a337b6f12540286792
[INFO] running `Command { std: "docker" "start" "-a" "d8b8e20bca0d65cfca18f0750e04fc544c9fdaa7217515a337b6f12540286792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8b8e20bca0d65cfca18f0750e04fc544c9fdaa7217515a337b6f12540286792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b8e20bca0d65cfca18f0750e04fc544c9fdaa7217515a337b6f12540286792", kill_on_drop: false }`
[INFO] [stdout] d8b8e20bca0d65cfca18f0750e04fc544c9fdaa7217515a337b6f12540286792
[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" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0b205e4925e7b14bca6b15bb1577f59e55f2e859672faba93006c9265fc3a8
[INFO] running `Command { std: "docker" "start" "-a" "2e0b205e4925e7b14bca6b15bb1577f59e55f2e859672faba93006c9265fc3a8", kill_on_drop: false }`
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/class.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fmt::{write, Formatter};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClassInstance`
[INFO] [stdout]  --> src/function.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::class::{ClassInstance, ClassInstanceRef};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/class.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fmt::{write, Formatter};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `runtime_error`
[INFO] [stdout]  --> src/resolver.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::{expr, print_error, runtime_error, stmt};
[INFO] [stdout]   |                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClassInstance`
[INFO] [stdout]  --> src/function.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::class::{ClassInstance, ClassInstanceRef};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     LEFT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftParen`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     RIGHT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightParen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `runtime_error`
[INFO] [stdout]  --> src/resolver.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::{expr, print_error, runtime_error, stmt};
[INFO] [stdout]   |                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     LEFT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     BANG_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     EQUAL_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     LEFT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftParen`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     GREATER_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     RIGHT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightParen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     LESS_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     LEFT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClassInstance`
[INFO] [stdout]  --> src/value.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::class::{Class, ClassInstance, ClassInstanceRef};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     BANG_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     EQUAL_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     GREATER_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     LESS_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClassInstance`
[INFO] [stdout]  --> src/value.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::class::{Class, ClassInstance, ClassInstanceRef};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/interpreter.rs:399:40
[INFO] [stdout]     |
[INFO] [stdout] 399 |                 Stmt::Function { name, body, params } => {
[INFO] [stdout]     |                                        ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]    --> src/interpreter.rs:399:46
[INFO] [stdout]     |
[INFO] [stdout] 399 |                 Stmt::Function { name, body, params } => {
[INFO] [stdout]     |                                              ^^^^^^ help: try ignoring the field: `params: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/interpreter.rs:399:40
[INFO] [stdout]     |
[INFO] [stdout] 399 |                 Stmt::Function { name, body, params } => {
[INFO] [stdout]     |                                        ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]    --> src/interpreter.rs:399:46
[INFO] [stdout]     |
[INFO] [stdout] 399 |                 Stmt::Function { name, body, params } => {
[INFO] [stdout]     |                                              ^^^^^^ help: try ignoring the field: `params: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/interpreter.rs:439:37
[INFO] [stdout]     |
[INFO] [stdout] 439 |         if let Value::ClassInstance(mut instance) = obj {
[INFO] [stdout]     |                                     ----^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/interpreter.rs:439:37
[INFO] [stdout]     |
[INFO] [stdout] 439 |         if let Value::ClassInstance(mut instance) = obj {
[INFO] [stdout]     |                                     ----^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/resolver.rs:278:49
[INFO] [stdout]     |
[INFO] [stdout] 278 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/resolver.rs:278:49
[INFO] [stdout]     |
[INFO] [stdout] 278 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/resolver.rs:348:26
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 keyword, method, ..
[INFO] [stdout]     |                          ^^^^^^ help: try ignoring the field: `method: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/resolver.rs:348:26
[INFO] [stdout]     |
[INFO] [stdout] 348 |                 keyword, method, ..
[INFO] [stdout]     |                          ^^^^^^ help: try ignoring the field: `method: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstPrinter` is never constructed
[INFO] [stdout]  --> src/utils/ast_printer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AstPrinter {}
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print` and `parenthesize` are never used
[INFO] [stdout]   --> src/utils/ast_printer.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl AstPrinter {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout]  8 |     pub fn print(&mut self, expr: &Expr) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn parenthesize(&mut self, name: &str, exprs: Vec<&Expr>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RpnNotation` is never constructed
[INFO] [stdout]  --> src/utils/rpn_printer.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RpnNotation {}
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print` and `format` are never used
[INFO] [stdout]   --> src/utils/rpn_printer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl RpnNotation {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] 10 |     pub fn print(&mut self, expr: &Expr) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn format(&mut self, name: &str, exprs: Vec<&Expr>) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AstPrinter` is never constructed
[INFO] [stdout]  --> src/utils/ast_printer.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AstPrinter {}
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print` and `parenthesize` are never used
[INFO] [stdout]   --> src/utils/ast_printer.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl AstPrinter {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout]  8 |     pub fn print(&mut self, expr: &Expr) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn parenthesize(&mut self, name: &str, exprs: Vec<&Expr>) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RpnNotation` is never constructed
[INFO] [stdout]  --> src/utils/rpn_printer.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RpnNotation {}
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print` and `format` are never used
[INFO] [stdout]   --> src/utils/rpn_printer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl RpnNotation {
[INFO] [stdout]    | ---------------- methods in this implementation
[INFO] [stdout] 10 |     pub fn print(&mut self, expr: &Expr) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn format(&mut self, name: &str, exprs: Vec<&Expr>) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/function.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]    |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub callable: fn(&mut Interpreter, Vec<Value>) -> Value,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/function.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]    |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub callable: fn(&mut Interpreter, Vec<Value>) -> Value,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "2e0b205e4925e7b14bca6b15bb1577f59e55f2e859672faba93006c9265fc3a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0b205e4925e7b14bca6b15bb1577f59e55f2e859672faba93006c9265fc3a8", kill_on_drop: false }`
[INFO] [stdout] 2e0b205e4925e7b14bca6b15bb1577f59e55f2e859672faba93006c9265fc3a8
