[INFO] cloning repository https://github.com/echnobas/fenix-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/echnobas/fenix-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fechnobas%2Ffenix-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fechnobas%2Ffenix-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7a5d01597a1104cc01a64aa7a3a748f94683494
[INFO] testing echnobas/fenix-lang against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fechnobas%2Ffenix-lang" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/echnobas/fenix-lang on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/echnobas/fenix-lang
[INFO] finished tweaking git repo https://github.com/echnobas/fenix-lang
[INFO] tweaked toml for git repo https://github.com/echnobas/fenix-lang written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/echnobas/fenix-lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded eval v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b238172145b56a9ff4edebd49b2c24bc651efb4b5b752b1c75d1affb23af95a2
[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" "b238172145b56a9ff4edebd49b2c24bc651efb4b5b752b1c75d1affb23af95a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b238172145b56a9ff4edebd49b2c24bc651efb4b5b752b1c75d1affb23af95a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b238172145b56a9ff4edebd49b2c24bc651efb4b5b752b1c75d1affb23af95a2", kill_on_drop: false }`
[INFO] [stdout] b238172145b56a9ff4edebd49b2c24bc651efb4b5b752b1c75d1affb23af95a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] ce5820fccd11ce3913f3bef816ea8f453500f1cda55914389d1261b9d35ea084
[INFO] running `Command { std: "docker" "start" "-a" "ce5820fccd11ce3913f3bef816ea8f453500f1cda55914389d1261b9d35ea084", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling eval v0.4.3
[INFO] [stderr]    Compiling rust_interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `scanner` should have an upper camel case name
[INFO] [stdout]   --> src/scanner.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct scanner {
[INFO] [stdout]    |            ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Scanner`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG`
[INFO] [stdout]  --> src/lexer_types.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG_EQUAL`
[INFO] [stdout]  --> src/lexer_types.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER`
[INFO] [stdout]   --> src/lexer_types.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER_EQUAL`
[INFO] [stdout]   --> src/lexer_types.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS`
[INFO] [stdout]   --> src/lexer_types.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS_EQUAL`
[INFO] [stdout]   --> src/lexer_types.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER`
[INFO] [stdout]   --> src/lexer_types.rs:14:43
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING(String), DOUBLE(f64), NUMBER(i32),
[INFO] [stdout]    |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `THIS`
[INFO] [stdout]   --> src/lexer_types.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> src/lexer_types.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.30s
[INFO] running `Command { std: "docker" "inspect" "ce5820fccd11ce3913f3bef816ea8f453500f1cda55914389d1261b9d35ea084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5820fccd11ce3913f3bef816ea8f453500f1cda55914389d1261b9d35ea084", kill_on_drop: false }`
[INFO] [stdout] ce5820fccd11ce3913f3bef816ea8f453500f1cda55914389d1261b9d35ea084
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6da4678ff0f9442d7b2b22a65fbb906b4d5f6b2af216a35e7313bd4d05e0f210
[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" "6da4678ff0f9442d7b2b22a65fbb906b4d5f6b2af216a35e7313bd4d05e0f210", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `scanner` should have an upper camel case name
[INFO] [stdout]   --> src/scanner.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct scanner {
[INFO] [stdout]    |            ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Scanner`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG`
[INFO] [stdout]  --> src/lexer_types.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG_EQUAL`
[INFO] [stdout]  --> src/lexer_types.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     BANG, BANG_EQUAL,
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER`
[INFO] [stdout]   --> src/lexer_types.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER_EQUAL`
[INFO] [stdout]   --> src/lexer_types.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     GREATER, GREATER_EQUAL,
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS`
[INFO] [stdout]   --> src/lexer_types.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS_EQUAL`
[INFO] [stdout]   --> src/lexer_types.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     LESS, LESS_EQUAL,
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER`
[INFO] [stdout]   --> src/lexer_types.rs:14:43
[INFO] [stdout]    |
[INFO] [stdout] 14 |     IDENTIFIER, STRING(String), DOUBLE(f64), NUMBER(i32),
[INFO] [stdout]    |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `THIS`
[INFO] [stdout]   --> src/lexer_types.rs:18:24
[INFO] [stdout]    |
[INFO] [stdout] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> src/lexer_types.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "6da4678ff0f9442d7b2b22a65fbb906b4d5f6b2af216a35e7313bd4d05e0f210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da4678ff0f9442d7b2b22a65fbb906b4d5f6b2af216a35e7313bd4d05e0f210", kill_on_drop: false }`
[INFO] [stdout] 6da4678ff0f9442d7b2b22a65fbb906b4d5f6b2af216a35e7313bd4d05e0f210
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] be83ccca216d93e867eced12d32b983de1310e56a1dfadce451ede0b7ce0a2fe
[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" "be83ccca216d93e867eced12d32b983de1310e56a1dfadce451ede0b7ce0a2fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 1 | use std::io::Write;
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `scanner` should have an upper camel case name
[INFO] [stderr]   --> src/scanner.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct scanner {
[INFO] [stderr]    |            ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Scanner`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BANG`
[INFO] [stderr]  --> src/lexer_types.rs:8:2
[INFO] [stderr]   |
[INFO] [stderr] 8 |     BANG, BANG_EQUAL,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BANG_EQUAL`
[INFO] [stderr]  --> src/lexer_types.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     BANG, BANG_EQUAL,
[INFO] [stderr]   |           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GREATER`
[INFO] [stderr]   --> src/lexer_types.rs:10:2
[INFO] [stderr]    |
[INFO] [stderr] 10 |     GREATER, GREATER_EQUAL,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GREATER_EQUAL`
[INFO] [stderr]   --> src/lexer_types.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 |     GREATER, GREATER_EQUAL,
[INFO] [stderr]    |              ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LESS`
[INFO] [stderr]   --> src/lexer_types.rs:11:2
[INFO] [stderr]    |
[INFO] [stderr] 11 |     LESS, LESS_EQUAL,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LESS_EQUAL`
[INFO] [stderr]   --> src/lexer_types.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 |     LESS, LESS_EQUAL,
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NUMBER`
[INFO] [stderr]   --> src/lexer_types.rs:14:43
[INFO] [stderr]    |
[INFO] [stderr] 14 |     IDENTIFIER, STRING(String), DOUBLE(f64), NUMBER(i32),
[INFO] [stderr]    |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `THIS`
[INFO] [stderr]   --> src/lexer_types.rs:18:24
[INFO] [stderr]    |
[INFO] [stderr] 18 |     PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_string`
[INFO] [stderr]   --> src/lexer_types.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn to_string(&self) -> String {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_interpreter-d078b4634c322205
[INFO] running `Command { std: "docker" "inspect" "be83ccca216d93e867eced12d32b983de1310e56a1dfadce451ede0b7ce0a2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be83ccca216d93e867eced12d32b983de1310e56a1dfadce451ede0b7ce0a2fe", kill_on_drop: false }`
[INFO] [stdout] be83ccca216d93e867eced12d32b983de1310e56a1dfadce451ede0b7ce0a2fe
