[INFO] cloning repository https://github.com/jstnlef/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jstnlef/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstnlef%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstnlef%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b2539933766d572a8c9398610d36cf33d64e0bf
[INFO] testing jstnlef/rlox against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstnlef%2Frlox" "/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/jstnlef/rlox on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jstnlef/rlox
[INFO] finished tweaking git repo https://github.com/jstnlef/rlox
[INFO] tweaked toml for git repo https://github.com/jstnlef/rlox written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jstnlef/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazy_static v0.2.10
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5511a9edd4ecaad2b4cf536418ce9d9aaab4735edb2793ffdc339723d6766c07
[INFO] running `Command { std: "docker" "start" "-a" "5511a9edd4ecaad2b4cf536418ce9d9aaab4735edb2793ffdc339723d6766c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5511a9edd4ecaad2b4cf536418ce9d9aaab4735edb2793ffdc339723d6766c07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5511a9edd4ecaad2b4cf536418ce9d9aaab4735edb2793ffdc339723d6766c07", kill_on_drop: false }`
[INFO] [stdout] 5511a9edd4ecaad2b4cf536418ce9d9aaab4735edb2793ffdc339723d6766c07
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4c6ac3b25c052ceae53ab7a59ab4fb8039e13d092468819a4eaf40374459a971
[INFO] running `Command { std: "docker" "start" "-a" "4c6ac3b25c052ceae53ab7a59ab4fb8039e13d092468819a4eaf40374459a971", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v0.2.10
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lox_object.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Function(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/scanner.rs:338:1
[INFO] [stdout]     |
[INFO] [stdout] 338 | / lazy_static! {
[INFO] [stdout] 339 | |     static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stdout] 340 | |         let mut m = HashMap::new();
[INFO] [stdout] 341 | |         m.insert("and", TokenType::AND);
[INFO] [stdout] ...   |
[INFO] [stdout] 358 | |     };
[INFO] [stdout] 359 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/scanner.rs:338:1
[INFO] [stdout]     |
[INFO] [stdout] 338 | / lazy_static! {
[INFO] [stdout] 339 | |     static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stdout] 340 | |         let mut m = HashMap::new();
[INFO] [stdout] 341 | |         m.insert("and", TokenType::AND);
[INFO] [stdout] ...   |
[INFO] [stdout] 358 | |     };
[INFO] [stdout] 359 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Callable`
[INFO] [stdout]  --> src/interpreter.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use lox_object::{LoxObject, Callable};
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interpreter`
[INFO] [stdout]   --> src/native_functions.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interpreter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/native_functions.rs:13:51
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stdout]    |                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `line_error`
[INFO] [stdout]   --> src/lox.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn line_error(&mut self, line: i32, message: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]    --> src/scanner.rs:325:5
[INFO] [stdout]     |
[INFO] [stdout] 325 |     line: i32,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]    --> src/scanner.rs:326:5
[INFO] [stdout]     |
[INFO] [stdout] 326 |     message: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `globals`
[INFO] [stdout]   --> src/interpreter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     globals: Rc<Environment>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "4c6ac3b25c052ceae53ab7a59ab4fb8039e13d092468819a4eaf40374459a971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6ac3b25c052ceae53ab7a59ab4fb8039e13d092468819a4eaf40374459a971", kill_on_drop: false }`
[INFO] [stdout] 4c6ac3b25c052ceae53ab7a59ab4fb8039e13d092468819a4eaf40374459a971
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e96ec354035a62e63065da80064e3f527990c4ae523e3d89115e6edfa58d3fac
[INFO] running `Command { std: "docker" "start" "-a" "e96ec354035a62e63065da80064e3f527990c4ae523e3d89115e6edfa58d3fac", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lox_object.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Function(Rc<Callable>),
[INFO] [stdout]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/scanner.rs:338:1
[INFO] [stdout]     |
[INFO] [stdout] 338 | / lazy_static! {
[INFO] [stdout] 339 | |     static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stdout] 340 | |         let mut m = HashMap::new();
[INFO] [stdout] 341 | |         m.insert("and", TokenType::AND);
[INFO] [stdout] ...   |
[INFO] [stdout] 358 | |     };
[INFO] [stdout] 359 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/scanner.rs:338:1
[INFO] [stdout]     |
[INFO] [stdout] 338 | / lazy_static! {
[INFO] [stdout] 339 | |     static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stdout] 340 | |         let mut m = HashMap::new();
[INFO] [stdout] 341 | |         m.insert("and", TokenType::AND);
[INFO] [stdout] ...   |
[INFO] [stdout] 358 | |     };
[INFO] [stdout] 359 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Callable`
[INFO] [stdout]  --> src/interpreter.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use lox_object::{LoxObject, Callable};
[INFO] [stdout]   |                             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `interpreter`
[INFO] [stdout]   --> src/native_functions.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stdout]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interpreter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]   --> src/native_functions.rs:13:51
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stdout]    |                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `line_error`
[INFO] [stdout]   --> src/lox.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn line_error(&mut self, line: i32, message: &str) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]    --> src/scanner.rs:325:5
[INFO] [stdout]     |
[INFO] [stdout] 325 |     line: i32,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `message`
[INFO] [stdout]    --> src/scanner.rs:326:5
[INFO] [stdout]     |
[INFO] [stdout] 326 |     message: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `globals`
[INFO] [stdout]   --> src/interpreter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     globals: Rc<Environment>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "e96ec354035a62e63065da80064e3f527990c4ae523e3d89115e6edfa58d3fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e96ec354035a62e63065da80064e3f527990c4ae523e3d89115e6edfa58d3fac", kill_on_drop: false }`
[INFO] [stdout] e96ec354035a62e63065da80064e3f527990c4ae523e3d89115e6edfa58d3fac
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1759e4da1d504f63be29ce3cc47894626c476c69a27996a52d28599d910a25c4
[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" "1759e4da1d504f63be29ce3cc47894626c476c69a27996a52d28599d910a25c4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/lox_object.rs:10:17
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 10 |     Function(Rc<Callable>),
[INFO] [stdout] 
[INFO] [stderr]    |                 ^^^^^^^^ help: use `dyn`: `dyn Callable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/scanner.rs:338:1
[INFO] [stderr]     |
[INFO] [stderr] 338 | / lazy_static! {
[INFO] [stderr] 339 | |     static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 340 | |         let mut m = HashMap::new();
[INFO] [stderr] 341 | |         m.insert("and", TokenType::AND);
[INFO] [stderr] ...   |
[INFO] [stderr] 358 | |     };
[INFO] [stderr] 359 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/scanner.rs:338:1
[INFO] [stderr]     |
[INFO] [stderr] 338 | / lazy_static! {
[INFO] [stderr] 339 | |     static ref KEYWORDS: HashMap<&'static str, TokenType> = {
[INFO] [stderr] 340 | |         let mut m = HashMap::new();
[INFO] [stderr] 341 | |         m.insert("and", TokenType::AND);
[INFO] [stderr] ...   |
[INFO] [stderr] 358 | |     };
[INFO] [stderr] 359 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Callable`
[INFO] [stderr]  --> src/interpreter.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use lox_object::{LoxObject, Callable};
[INFO] [stderr]   |                             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `interpreter`
[INFO] [stderr]   --> src/native_functions.rs:13:20
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stderr]    |                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_interpreter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]   --> src/native_functions.rs:13:51
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn call(&self, interpreter: &mut Interpreter, arguments: &[LoxObject]) -> RuntimeResult<LoxObject> {
[INFO] [stderr]    |                                                   ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `line_error`
[INFO] [stderr]   --> src/lox.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn line_error(&mut self, line: i32, message: &str) {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `line`
[INFO] [stderr]    --> src/scanner.rs:325:5
[INFO] [stderr]     |
[INFO] [stderr] 325 |     line: i32,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `message`
[INFO] [stderr]    --> src/scanner.rs:326:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |     message: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `globals`
[INFO] [stderr]   --> src/interpreter.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     globals: Rc<Environment>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rlox` (bin "rlox" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rlox-e904cf658a58e55e)
[INFO] running `Command { std: "docker" "inspect" "1759e4da1d504f63be29ce3cc47894626c476c69a27996a52d28599d910a25c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1759e4da1d504f63be29ce3cc47894626c476c69a27996a52d28599d910a25c4", kill_on_drop: false }`
[INFO] [stdout] 1759e4da1d504f63be29ce3cc47894626c476c69a27996a52d28599d910a25c4