[INFO] fetching crate fsm-rust-jb 0.1.3...
[INFO] building fsm-rust-jb-0.1.3 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate fsm-rust-jb 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fsm-rust-jb 0.1.3 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fsm-rust-jb 0.1.3
[INFO] finished tweaking crates.io crate fsm-rust-jb 0.1.3
[INFO] tweaked toml for crates.io crate fsm-rust-jb 0.1.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d77dfb6580c256b455891fc531e4d84440a4c4e1d22dbd61e81a421e8c0765dc
[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" "d77dfb6580c256b455891fc531e4d84440a4c4e1d22dbd61e81a421e8c0765dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d77dfb6580c256b455891fc531e4d84440a4c4e1d22dbd61e81a421e8c0765dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77dfb6580c256b455891fc531e4d84440a4c4e1d22dbd61e81a421e8c0765dc", kill_on_drop: false }`
[INFO] [stdout] d77dfb6580c256b455891fc531e4d84440a4c4e1d22dbd61e81a421e8c0765dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "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] ae0f51db644692036083334dff41288ea8800d76b747d43efd38f7d7a8d0cb22
[INFO] running `Command { std: "docker" "start" "-a" "ae0f51db644692036083334dff41288ea8800d76b747d43efd38f7d7a8d0cb22", kill_on_drop: false }`
[INFO] [stderr]    Compiling fsm-rust-jb v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `NUMBER_IP` should have an upper camel case name
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     NUMBER_IP,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `NumberIp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NUMBER_FP` should have an upper camel case name
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NUMBER_FP
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `NumberFp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/tests/utils.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 input_data: StreamData { index, character, .. }, 
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/tests/utils.rs:45:49
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 input_data: StreamData { index, character, .. }, 
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/tests/utils.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     index: usize,
[INFO] [stdout]    |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/tests/utils.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     character: char,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_valid_string`
[INFO] [stdout]  --> src/tests/utils.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn test_valid_string<'a, State, Effect>(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_invalid_string`
[INFO] [stdout]   --> src/tests/utils.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn test_invalid_string<'a, State, Effect>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_letter`
[INFO] [stdout]   --> src/tests/utils.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn is_letter(ch: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_digit`
[INFO] [stdout]   --> src/tests/utils.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn is_digit(ch: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `INIT`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     INIT,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WORD`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     WORD,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER_IP`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     NUMBER_IP,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER_FP`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NUMBER_FP
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init_fsm`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn init_fsm<Effect>(
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "ae0f51db644692036083334dff41288ea8800d76b747d43efd38f7d7a8d0cb22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae0f51db644692036083334dff41288ea8800d76b747d43efd38f7d7a8d0cb22", kill_on_drop: false }`
[INFO] [stdout] ae0f51db644692036083334dff41288ea8800d76b747d43efd38f7d7a8d0cb22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c41fd08cc34de3c2d26bc31be96b6ee3b44524a66d4ac545411a8137fdeaa565
[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" "c41fd08cc34de3c2d26bc31be96b6ee3b44524a66d4ac545411a8137fdeaa565", kill_on_drop: false }`
[INFO] [stdout] warning: variant `NUMBER_IP` should have an upper camel case name
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     NUMBER_IP,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `NumberIp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fsm-rust-jb v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `NUMBER_FP` should have an upper camel case name
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NUMBER_FP
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `NumberFp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/tests/utils.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 input_data: StreamData { index, character, .. }, 
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/tests/utils.rs:45:49
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 input_data: StreamData { index, character, .. }, 
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/tests/utils.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     index: usize,
[INFO] [stdout]    |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/tests/utils.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     character: char,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_valid_string`
[INFO] [stdout]  --> src/tests/utils.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn test_valid_string<'a, State, Effect>(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_invalid_string`
[INFO] [stdout]   --> src/tests/utils.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn test_invalid_string<'a, State, Effect>(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_letter`
[INFO] [stdout]   --> src/tests/utils.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn is_letter(ch: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_digit`
[INFO] [stdout]   --> src/tests/utils.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn is_digit(ch: char) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `INIT`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     INIT,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WORD`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     WORD,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER_IP`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     NUMBER_IP,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NUMBER_FP`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NUMBER_FP
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init_fsm`
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn init_fsm<Effect>(
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NUMBER_IP` should have an upper camel case name
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     NUMBER_IP,
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `NumberIp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NUMBER_FP` should have an upper camel case name
[INFO] [stdout]   --> src/tests/automatas/words_and_numbers.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     NUMBER_FP
[INFO] [stdout]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `NumberFp`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `INTEGER_PART` should have an upper camel case name
[INFO] [stdout]   --> src/tests/float_numbers.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         INTEGER_PART,
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `IntegerPart`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `FRACTION_PART` should have an upper camel case name
[INFO] [stdout]   --> src/tests/float_numbers.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         FRACTION_PART,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `FractionPart`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `INCREMENT_WORD_COUNT` should have an upper camel case name
[INFO] [stdout]   --> src/tests/count_words_and_numbers.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         INCREMENT_WORD_COUNT,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `IncrementWordCount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `INCREMENT_NUMBER_COUNT` should have an upper camel case name
[INFO] [stdout]   --> src/tests/count_words_and_numbers.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         INCREMENT_NUMBER_COUNT
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `IncrementNumberCount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::macros`
[INFO] [stdout]  --> src/tests/split_into_words_and_count_sum.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::macros;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/tests/utils.rs:45:42
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 input_data: StreamData { index, character, .. }, 
[INFO] [stdout]    |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/tests/utils.rs:45:49
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 input_data: StreamData { index, character, .. }, 
[INFO] [stdout]    |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/tests/utils.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     index: usize,
[INFO] [stdout]    |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `character`
[INFO] [stdout]   --> src/tests/utils.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     character: char,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_character`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "c41fd08cc34de3c2d26bc31be96b6ee3b44524a66d4ac545411a8137fdeaa565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c41fd08cc34de3c2d26bc31be96b6ee3b44524a66d4ac545411a8137fdeaa565", kill_on_drop: false }`
[INFO] [stdout] c41fd08cc34de3c2d26bc31be96b6ee3b44524a66d4ac545411a8137fdeaa565
