[INFO] cloning repository https://github.com/Lauel09/test_cir
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lauel09/test_cir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLauel09%2Ftest_cir", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLauel09%2Ftest_cir'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12120818715c527def81fdf0816189f41be8d035
[INFO] checking Lauel09/test_cir against try#53f0b05ecbcf011a1f77f1c627304e87ebd05801 for pr-154492
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLauel09%2Ftest_cir" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Lauel09/test_cir
[INFO] finished tweaking git repo https://github.com/Lauel09/test_cir
[INFO] tweaked toml for git repo https://github.com/Lauel09/test_cir written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lauel09/test_cir on toolchain 53f0b05ecbcf011a1f77f1c627304e87ebd05801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Lauel09/test_cir 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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cfb1dcbbb3a54b7205e3a2b8f0a2e00b6aa5ec1ff186e771feed961bd60fcaa
[INFO] running `Command { std: "docker" "start" "-a" "7cfb1dcbbb3a54b7205e3a2b8f0a2e00b6aa5ec1ff186e771feed961bd60fcaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cfb1dcbbb3a54b7205e3a2b8f0a2e00b6aa5ec1ff186e771feed961bd60fcaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cfb1dcbbb3a54b7205e3a2b8f0a2e00b6aa5ec1ff186e771feed961bd60fcaa", kill_on_drop: false }`
[INFO] [stdout] 7cfb1dcbbb3a54b7205e3a2b8f0a2e00b6aa5ec1ff186e771feed961bd60fcaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd20b782896b86d62011d58399939330e0cfd7129d8b757797467caf9bf44e21
[INFO] running `Command { std: "docker" "start" "-a" "fd20b782896b86d62011d58399939330e0cfd7129d8b757797467caf9bf44e21", kill_on_drop: false }`
[INFO] [stderr]     Checking test_cir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/bytecode_interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[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: `crate::bytecode`
[INFO] [stdout]  --> src/compiler.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::bytecode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::extensions`
[INFO] [stdout]  --> src/compiler.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::extensions;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/bytecode_interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[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: `crate::bytecode`
[INFO] [stdout]  --> src/compiler.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::bytecode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::extensions`
[INFO] [stdout]  --> src/compiler.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::extensions;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LineNo` is never constructed
[INFO] [stdout]  --> src/bytecode.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct LineNo {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/bytecode.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl LineNo {
[INFO] [stdout]   | ----------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(value:usize) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Op` is never used
[INFO] [stdout]   --> src/bytecode.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Op {
[INFO] [stdout]    |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Function` is never constructed
[INFO] [stdout]   --> src/bytecode.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Function {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Constant` is never used
[INFO] [stdout]   --> src/bytecode.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum Constant {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk` is never constructed
[INFO] [stdout]   --> src/bytecode.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct Chunk {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_constant`, `find_string`, `add_constant_string`, `add_constant_number`, and `find_number` are never used
[INFO] [stdout]    --> src/bytecode.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  66 | impl Chunk {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout]  67 |     pub fn add_constant(&mut self, val:Constant) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |     fn find_string(&self,to_find: &str ) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn add_constant_string(&mut self, to_add: &str) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     pub fn add_constant_number(&mut self, num: f64) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn find_number(&self, to_find: f64) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis_code` is never used
[INFO] [stdout]   --> src/bytecode_interpreter.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn dis_code(chunk: &Chunk) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis_chunk` is never used
[INFO] [stdout]   --> src/bytecode_interpreter.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dis_chunk( chunk: &Chunk, name: &str ) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Eof` is never constructed
[INFO] [stdout]   --> src/scanner.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 55 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Identifier(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 60 -     Identifier(String),
[INFO] [stdout] 60 +     Identifier(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     Str(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 61 -     Str(String),
[INFO] [stdout] 61 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Number(f64)
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 62 -     Number(f64)
[INFO] [stdout] 62 +     Number(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cur_char` is never used
[INFO] [stdout]    --> src/scanner.rs:530:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | impl Scanner {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 530 |     pub fn cur_char(&self)  -> Option<char> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Local` is never constructed
[INFO] [stdout]   --> src/compiler.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Local {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LineNo` is never constructed
[INFO] [stdout]  --> src/bytecode.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct LineNo {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/bytecode.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl LineNo {
[INFO] [stdout]   | ----------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(value:usize) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Op` is never used
[INFO] [stdout]   --> src/bytecode.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum Op {
[INFO] [stdout]    |          ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Function` is never constructed
[INFO] [stdout]   --> src/bytecode.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Function {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Constant` is never used
[INFO] [stdout]   --> src/bytecode.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub enum Constant {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chunk` is never constructed
[INFO] [stdout]   --> src/bytecode.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct Chunk {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_constant`, `find_string`, `add_constant_string`, `add_constant_number`, and `find_number` are never used
[INFO] [stdout]    --> src/bytecode.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  66 | impl Chunk {
[INFO] [stdout]     | ---------- methods in this implementation
[INFO] [stdout]  67 |     pub fn add_constant(&mut self, val:Constant) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |     fn find_string(&self,to_find: &str ) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn add_constant_string(&mut self, to_add: &str) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     pub fn add_constant_number(&mut self, num: f64) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn find_number(&self, to_find: f64) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis_code` is never used
[INFO] [stdout]   --> src/bytecode_interpreter.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn dis_code(chunk: &Chunk) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis_chunk` is never used
[INFO] [stdout]   --> src/bytecode_interpreter.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn dis_chunk( chunk: &Chunk, name: &str ) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Eof` is never constructed
[INFO] [stdout]   --> src/scanner.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 55 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Identifier(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 60 -     Identifier(String),
[INFO] [stdout] 60 +     Identifier(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     Str(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 61 -     Str(String),
[INFO] [stdout] 61 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/scanner.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Number(f64)
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 62 -     Number(f64)
[INFO] [stdout] 62 +     Number(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cur_char` is never used
[INFO] [stdout]    --> src/scanner.rs:530:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | impl Scanner {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 530 |     pub fn cur_char(&self)  -> Option<char> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Local` is never constructed
[INFO] [stdout]   --> src/compiler.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Local {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "fd20b782896b86d62011d58399939330e0cfd7129d8b757797467caf9bf44e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd20b782896b86d62011d58399939330e0cfd7129d8b757797467caf9bf44e21", kill_on_drop: false }`
[INFO] [stdout] fd20b782896b86d62011d58399939330e0cfd7129d8b757797467caf9bf44e21
