[INFO] cloning repository https://github.com/tiny-browserbook/exercise-css
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiny-browserbook/exercise-css" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiny-browserbook%2Fexercise-css", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiny-browserbook%2Fexercise-css'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19bff63871861db3d8735679d346ab91e8f00ec2
[INFO] checking tiny-browserbook/exercise-css against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiny-browserbook%2Fexercise-css" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tiny-browserbook/exercise-css on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tiny-browserbook/exercise-css
[INFO] finished tweaking git repo https://github.com/tiny-browserbook/exercise-css
[INFO] tweaked toml for git repo https://github.com/tiny-browserbook/exercise-css written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tiny-browserbook/exercise-css already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a584b25f933a6de5390029b78dcadadb617f8865387038ea56e267dfde14d6e
[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" "3a584b25f933a6de5390029b78dcadadb617f8865387038ea56e267dfde14d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a584b25f933a6de5390029b78dcadadb617f8865387038ea56e267dfde14d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a584b25f933a6de5390029b78dcadadb617f8865387038ea56e267dfde14d6e", kill_on_drop: false }`
[INFO] [stdout] 3a584b25f933a6de5390029b78dcadadb617f8865387038ea56e267dfde14d6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--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] e7ed11727d0d93351c456e0da87e39871e678eeec2c0b48fa6f425cae92da906
[INFO] running `Command { std: "docker" "start" "-a" "e7ed11727d0d93351c456e0da87e39871e678eeec2c0b48fa6f425cae92da906", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking combine v4.5.2
[INFO] [stderr]     Checking exercise-css v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/css.rs (1 fix)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/css.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     todo!("you need to implement this");
[INFO] [stdout]    |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 94 |     (char(' ')).map(|_| vec![])
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 103 | /     (char(' '),).map(|_| Rule {
[INFO] [stdout] 104 | |         selectors: vec![],
[INFO] [stdout] 105 | |         declarations: vec![],
[INFO] [stdout] 106 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 115 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 124 |     (char(' '),).map(|_| SimpleSelector::UniversalSelector)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 133 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 142 | /     (char(' '),).map(|_| Declaration {
[INFO] [stdout] 143 | |         name: "".into(),
[INFO] [stdout] 144 | |         value: CSSValue::Keyword("".into()),
[INFO] [stdout] 145 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 154 |     (char(' '),).map(|_| CSSValue::Keyword("".into()))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rule`
[INFO] [stdout]   --> src/css.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn rule<Input>() -> impl Parser<Input, Output = Rule>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/css.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     todo!("you need to implement this");
[INFO] [stdout]    |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 94 |     (char(' ')).map(|_| vec![])
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `selectors`
[INFO] [stdout]    --> src/css.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn selectors<Input>() -> impl Parser<Input, Output = Vec<Selector>>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simple_selector`
[INFO] [stdout]    --> src/css.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn simple_selector<Input>() -> impl Parser<Input, Output = SimpleSelector>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `declarations`
[INFO] [stdout]    --> src/css.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn declarations<Input>() -> impl Parser<Input, Output = Vec<Declaration>>
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `declaration`
[INFO] [stdout]    --> src/css.rs:136:4
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn declaration<Input>() -> impl Parser<Input, Output = Declaration>
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `css_value`
[INFO] [stdout]    --> src/css.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn css_value<Input>() -> impl Parser<Input, Output = CSSValue>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 103 | /     (char(' '),).map(|_| Rule {
[INFO] [stdout] 104 | |         selectors: vec![],
[INFO] [stdout] 105 | |         declarations: vec![],
[INFO] [stdout] 106 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 115 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 124 |     (char(' '),).map(|_| SimpleSelector::UniversalSelector)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 133 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 142 | /     (char(' '),).map(|_| Declaration {
[INFO] [stdout] 143 | |         name: "".into(),
[INFO] [stdout] 144 | |         value: CSSValue::Keyword("".into()),
[INFO] [stdout] 145 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 154 |     (char(' '),).map(|_| CSSValue::Keyword("".into()))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: function is never used: `css_value`
[INFO] [stdout]    --> src/css.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn css_value<Input>() -> impl Parser<Input, Output = CSSValue>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.21s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking exercise-css v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/css.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     todo!("you need to implement this");
[INFO] [stdout]    |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 94 |     (char(' ')).map(|_| vec![])
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/css.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 93 |     todo!("you need to implement this");
[INFO] [stdout]    |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 94 |     (char(' ')).map(|_| vec![])
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 103 | /     (char(' '),).map(|_| Rule {
[INFO] [stdout] 104 | |         selectors: vec![],
[INFO] [stdout] 105 | |         declarations: vec![],
[INFO] [stdout] 106 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 103 | /     (char(' '),).map(|_| Rule {
[INFO] [stdout] 104 | |         selectors: vec![],
[INFO] [stdout] 105 | |         declarations: vec![],
[INFO] [stdout] 106 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 115 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 124 |     (char(' '),).map(|_| SimpleSelector::UniversalSelector)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 133 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 142 | /     (char(' '),).map(|_| Declaration {
[INFO] [stdout] 143 | |         name: "".into(),
[INFO] [stdout] 144 | |         value: CSSValue::Keyword("".into()),
[INFO] [stdout] 145 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 115 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 124 |     (char(' '),).map(|_| SimpleSelector::UniversalSelector)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 133 |     (char(' '),).map(|_| vec![])
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 141 |       todo!("you need to implement this");
[INFO] [stdout]     |       ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 142 | /     (char(' '),).map(|_| Declaration {
[INFO] [stdout] 143 | |         name: "".into(),
[INFO] [stdout] 144 | |         value: CSSValue::Keyword("".into()),
[INFO] [stdout] 145 | |     })
[INFO] [stdout]     | |______^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 154 |     (char(' '),).map(|_| CSSValue::Keyword("".into()))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/css.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 153 |     todo!("you need to implement this");
[INFO] [stdout]     |     ------------------------------------ any code following this expression is unreachable
[INFO] [stdout] 154 |     (char(' '),).map(|_| CSSValue::Keyword("".into()))
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rule`
[INFO] [stdout]   --> src/css.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn rule<Input>() -> impl Parser<Input, Output = Rule>
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `selectors`
[INFO] [stdout]    --> src/css.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn selectors<Input>() -> impl Parser<Input, Output = Vec<Selector>>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simple_selector`
[INFO] [stdout]    --> src/css.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn simple_selector<Input>() -> impl Parser<Input, Output = SimpleSelector>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `declarations`
[INFO] [stdout]    --> src/css.rs:127:4
[INFO] [stdout]     |
[INFO] [stdout] 127 | fn declarations<Input>() -> impl Parser<Input, Output = Vec<Declaration>>
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `declaration`
[INFO] [stdout]    --> src/css.rs:136:4
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn declaration<Input>() -> impl Parser<Input, Output = Declaration>
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `css_value`
[INFO] [stdout]    --> src/css.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn css_value<Input>() -> impl Parser<Input, Output = CSSValue>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `css_value`
[INFO] [stdout]    --> src/css.rs:148:4
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn css_value<Input>() -> impl Parser<Input, Output = CSSValue>
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "e7ed11727d0d93351c456e0da87e39871e678eeec2c0b48fa6f425cae92da906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ed11727d0d93351c456e0da87e39871e678eeec2c0b48fa6f425cae92da906", kill_on_drop: false }`
[INFO] [stdout] e7ed11727d0d93351c456e0da87e39871e678eeec2c0b48fa6f425cae92da906