[INFO] cloning repository https://github.com/0xNullByte/mlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xNullByte/mlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xNullByte%2Fmlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xNullByte%2Fmlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4c887e8d7623c3b8372a55bc3f9891e4e416b09
[INFO] testing 0xNullByte/mlox against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xNullByte%2Fmlox" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xNullByte/mlox
[INFO] finished tweaking git repo https://github.com/0xNullByte/mlox
[INFO] tweaked toml for git repo https://github.com/0xNullByte/mlox written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xNullByte/mlox on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xNullByte/mlox 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49fbae9a5ed966ba95befc86633204976c2da4a3b00c00858edb1a87a617c4e5
[INFO] running `Command { std: "docker" "start" "-a" "49fbae9a5ed966ba95befc86633204976c2da4a3b00c00858edb1a87a617c4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49fbae9a5ed966ba95befc86633204976c2da4a3b00c00858edb1a87a617c4e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49fbae9a5ed966ba95befc86633204976c2da4a3b00c00858edb1a87a617c4e5", kill_on_drop: false }`
[INFO] [stdout] 49fbae9a5ed966ba95befc86633204976c2da4a3b00c00858edb1a87a617c4e5
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26a7cd85b4c12bc9d0cdf5e26b21f12ec1da0d051ad097a7579b78fc21ad1a29
[INFO] running `Command { std: "docker" "start" "-a" "26a7cd85b4c12bc9d0cdf5e26b21f12ec1da0d051ad097a7579b78fc21ad1a29", kill_on_drop: false }`
[INFO] [stderr]    Compiling mlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/parser.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Error, rc::Rc};
[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 imports: `environ::Environment` and `eval::Evaluate`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     environ::Environment,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     eval::Evaluate,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environ::Environment`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use environ::Environment;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eq`
[INFO] [stdout]    --> src/parser.rs:248:17
[INFO] [stdout]     |
[INFO] [stdout] 248 |             let eq = self.previous().clone();
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_eq`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParseError` is never constructed
[INFO] [stdout]   --> src/error.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct ParseError {
[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 items `new`, `send`, and `report` are never used
[INFO] [stdout]   --> src/error.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl ParseError {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 26 |     pub fn new(had_err: bool) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn send(&mut self, token: &Token, message: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn report(&mut self, line: usize, where_: &str, message: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string` and `print_expr` are never used
[INFO] [stdout]   --> src/expr.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Expr {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 17 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn print_expr(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `synchronize` is never used
[INFO] [stdout]    --> src/parser.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 186 |     fn synchronize(&mut self) -> Stmt {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]   --> src/token.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub line: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "26a7cd85b4c12bc9d0cdf5e26b21f12ec1da0d051ad097a7579b78fc21ad1a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a7cd85b4c12bc9d0cdf5e26b21f12ec1da0d051ad097a7579b78fc21ad1a29", kill_on_drop: false }`
[INFO] [stdout] 26a7cd85b4c12bc9d0cdf5e26b21f12ec1da0d051ad097a7579b78fc21ad1a29
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d37fcb4ef67e1d8aed986f8157a32c47015b5e1b6fc6a512f1078c03146def1a
[INFO] running `Command { std: "docker" "start" "-a" "d37fcb4ef67e1d8aed986f8157a32c47015b5e1b6fc6a512f1078c03146def1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling mlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/parser.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Error, rc::Rc};
[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 imports: `environ::Environment` and `eval::Evaluate`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     environ::Environment,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     eval::Evaluate,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `environ::Environment`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use environ::Environment;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `eq`
[INFO] [stdout]    --> src/parser.rs:248:17
[INFO] [stdout]     |
[INFO] [stdout] 248 |             let eq = self.previous().clone();
[INFO] [stdout]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_eq`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParseError` is never constructed
[INFO] [stdout]   --> src/error.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct ParseError {
[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 items `new`, `send`, and `report` are never used
[INFO] [stdout]   --> src/error.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl ParseError {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 26 |     pub fn new(had_err: bool) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn send(&mut self, token: &Token, message: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn report(&mut self, line: usize, where_: &str, message: &str) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string` and `print_expr` are never used
[INFO] [stdout]   --> src/expr.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Expr {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 17 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn print_expr(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `synchronize` is never used
[INFO] [stdout]    --> src/parser.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 186 |     fn synchronize(&mut self) -> Stmt {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]   --> src/token.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub line: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "d37fcb4ef67e1d8aed986f8157a32c47015b5e1b6fc6a512f1078c03146def1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37fcb4ef67e1d8aed986f8157a32c47015b5e1b6fc6a512f1078c03146def1a", kill_on_drop: false }`
[INFO] [stdout] d37fcb4ef67e1d8aed986f8157a32c47015b5e1b6fc6a512f1078c03146def1a
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4aba0a44626557027a5b02ddb1183c1a57585126df6ace2cfefdea94726b8fad
[INFO] running `Command { std: "docker" "start" "-a" "4aba0a44626557027a5b02ddb1183c1a57585126df6ace2cfefdea94726b8fad", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `rc::Rc`
[INFO] [stderr]  --> src/parser.rs:1:22
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{io::Error, rc::Rc};
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `environ::Environment` and `eval::Evaluate`
[INFO] [stderr]  --> src/parser.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     environ::Environment,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 5 |     eval::Evaluate,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `environ::Environment`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use environ::Environment;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `eq`
[INFO] [stderr]    --> src/parser.rs:248:17
[INFO] [stderr]     |
[INFO] [stderr] 248 |             let eq = self.previous().clone();
[INFO] [stderr]     |                 ^^ help: if this is intentional, prefix it with an underscore: `_eq`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ParseError` is never constructed
[INFO] [stderr]   --> src/error.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct ParseError {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `send`, and `report` are never used
[INFO] [stderr]   --> src/error.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | impl ParseError {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr] 26 |     pub fn new(had_err: bool) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 29 |     pub fn send(&mut self, token: &Token, message: &str) -> Result<(), Error> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 36 |     pub fn report(&mut self, line: usize, where_: &str, message: &str) -> Result<(), Error> {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `to_string` and `print_expr` are never used
[INFO] [stderr]   --> src/expr.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Expr {
[INFO] [stderr]    | --------- methods in this implementation
[INFO] [stderr] 17 |     fn to_string(&self) -> String {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     pub fn print_expr(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `synchronize` is never used
[INFO] [stderr]    --> src/parser.rs:186:8
[INFO] [stderr]     |
[INFO] [stderr]  15 | impl Parser {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 186 |     fn synchronize(&mut self) -> Stmt {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `line` is never read
[INFO] [stderr]   --> src/token.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 79 | pub struct Token {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 83 |     pub line: usize,
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `mlox` (bin "mlox" test) generated 9 warnings (run `cargo fix --bin "mlox" -p mlox --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mlox-0fc30fcbc4d46e1f)
[INFO] running `Command { std: "docker" "inspect" "4aba0a44626557027a5b02ddb1183c1a57585126df6ace2cfefdea94726b8fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aba0a44626557027a5b02ddb1183c1a57585126df6ace2cfefdea94726b8fad", kill_on_drop: false }`
[INFO] [stdout] 4aba0a44626557027a5b02ddb1183c1a57585126df6ace2cfefdea94726b8fad
