[INFO] fetching crate korean_numbers 0.6.6...
[INFO] building korean_numbers-0.6.6 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate korean_numbers 0.6.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate korean_numbers 0.6.6 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate korean_numbers 0.6.6
[INFO] finished tweaking crates.io crate korean_numbers 0.6.6
[INFO] tweaked toml for crates.io crate korean_numbers 0.6.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef44256f63c0d190d81a18d8c2f3c58a4c3c0560ed185eecab2bdac4b117d0fc
[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" "ef44256f63c0d190d81a18d8c2f3c58a4c3c0560ed185eecab2bdac4b117d0fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef44256f63c0d190d81a18d8c2f3c58a4c3c0560ed185eecab2bdac4b117d0fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef44256f63c0d190d81a18d8c2f3c58a4c3c0560ed185eecab2bdac4b117d0fc", kill_on_drop: false }`
[INFO] [stdout] ef44256f63c0d190d81a18d8c2f3c58a4c3c0560ed185eecab2bdac4b117d0fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01443f4f04f685a6a9ca5430ee7c645ad73ef5e90eec9956eee5b29b13adcea8
[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" "01443f4f04f685a6a9ca5430ee7c645ad73ef5e90eec9956eee5b29b13adcea8", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling korean_numbers v0.6.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utilities.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     (char >= SYLLABLE_START && char <= SYLLABLE_END)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side_chars`
[INFO] [stdout]    --> src/parse.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let mut left_side_chars: Vec<char> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side_chars`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side`
[INFO] [stdout]    --> src/parse.rs:169:28
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_side`
[INFO] [stdout]    --> src/parse.rs:169:50
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |                                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parse.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |     let mut output = String::new();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parse.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let mut left_side_chars: Vec<char> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Fraction`
[INFO] [stdout]   --> src/math.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Fraction,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `EndingType`
[INFO] [stdout]   --> src/numbers.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub enum EndingType {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subject_particle`
[INFO] [stdout]   --> src/numbers.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn subject_particle(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `topic_particle`
[INFO] [stdout]   --> src/numbers.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn topic_particle(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ending_type`
[INFO] [stdout]    --> src/numbers.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn ending_type(&self) -> EndingType {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_hangeul_float`
[INFO] [stdout]    --> src/parse.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.12s
[INFO] running `Command { std: "docker" "inspect" "01443f4f04f685a6a9ca5430ee7c645ad73ef5e90eec9956eee5b29b13adcea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01443f4f04f685a6a9ca5430ee7c645ad73ef5e90eec9956eee5b29b13adcea8", kill_on_drop: false }`
[INFO] [stdout] 01443f4f04f685a6a9ca5430ee7c645ad73ef5e90eec9956eee5b29b13adcea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ae9c36bd0f6f237f4a8a76af6d8ed21c86507786903110ccc30cc3ba532fb3a
[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" "4ae9c36bd0f6f237f4a8a76af6d8ed21c86507786903110ccc30cc3ba532fb3a", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling korean_numbers v0.6.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utilities.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     (char >= SYLLABLE_START && char <= SYLLABLE_END)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side_chars`
[INFO] [stdout]    --> src/parse.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let mut left_side_chars: Vec<char> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side_chars`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side`
[INFO] [stdout]    --> src/parse.rs:169:28
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_side`
[INFO] [stdout]    --> src/parse.rs:169:50
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |                                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parse.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |     let mut output = String::new();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parse.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let mut left_side_chars: Vec<char> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Fraction`
[INFO] [stdout]   --> src/math.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Fraction,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `EndingType`
[INFO] [stdout]   --> src/numbers.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub enum EndingType {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subject_particle`
[INFO] [stdout]   --> src/numbers.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn subject_particle(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `topic_particle`
[INFO] [stdout]   --> src/numbers.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn topic_particle(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ending_type`
[INFO] [stdout]    --> src/numbers.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn ending_type(&self) -> EndingType {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_hangeul_float`
[INFO] [stdout]    --> src/parse.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:24:32
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/utilities.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     (char >= SYLLABLE_START && char <= SYLLABLE_END)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Float`
[INFO] [stdout]  --> tests/test.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | use num::{pow, Float, BigInt};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subject`
[INFO] [stdout]    --> tests/test.rs:347:10
[INFO] [stdout]     |
[INFO] [stdout] 347 |     for (subject, topic, c) in testcases {
[INFO] [stdout]     |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `topic`
[INFO] [stdout]    --> tests/test.rs:347:19
[INFO] [stdout]     |
[INFO] [stdout] 347 |     for (subject, topic, c) in testcases {
[INFO] [stdout]     |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_topic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]    --> tests/test.rs:347:26
[INFO] [stdout]     |
[INFO] [stdout] 347 |     for (subject, topic, c) in testcases {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `testcases`
[INFO] [stdout]    --> tests/test.rs:357:9
[INFO] [stdout]     |
[INFO] [stdout] 357 |     let testcases = vec![
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_testcases`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `it_determines_vowels`
[INFO] [stdout]    --> tests/test.rs:334:4
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn it_determines_vowels() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `math_operators`
[INFO] [stdout]    --> tests/test.rs:356:4
[INFO] [stdout]     |
[INFO] [stdout] 356 | fn math_operators() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side_chars`
[INFO] [stdout]    --> src/parse.rs:171:13
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let mut left_side_chars: Vec<char> = vec![];
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side_chars`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left_side`
[INFO] [stdout]    --> src/parse.rs:169:28
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |                            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_side`
[INFO] [stdout]    --> src/parse.rs:169:50
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |                                                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_side`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parse.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |     let mut output = String::new();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parse.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let mut left_side_chars: Vec<char> = vec![];
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Fraction`
[INFO] [stdout]   --> src/math.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Fraction,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `EndingType`
[INFO] [stdout]   --> src/numbers.rs:81:10
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub enum EndingType {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `subject_particle`
[INFO] [stdout]   --> src/numbers.rs:87:12
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn subject_particle(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `topic_particle`
[INFO] [stdout]   --> src/numbers.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn topic_particle(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ending_type`
[INFO] [stdout]    --> src/numbers.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn ending_type(&self) -> EndingType {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_hangeul_float`
[INFO] [stdout]    --> src/parse.rs:169:8
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn parse_hangeul_float(left_side: Vec<char>, right_side: Vec<char>) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "4ae9c36bd0f6f237f4a8a76af6d8ed21c86507786903110ccc30cc3ba532fb3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae9c36bd0f6f237f4a8a76af6d8ed21c86507786903110ccc30cc3ba532fb3a", kill_on_drop: false }`
[INFO] [stdout] 4ae9c36bd0f6f237f4a8a76af6d8ed21c86507786903110ccc30cc3ba532fb3a
