[INFO] cloning repository https://github.com/mflinn92/rusty-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mflinn92/rusty-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmflinn92%2Frusty-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmflinn92%2Frusty-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd41b6e8317a29ef8a1bd3cf78c01a2170d568ed
[INFO] testing mflinn92/rusty-engine against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmflinn92%2Frusty-engine" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mflinn92/rusty-engine on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mflinn92/rusty-engine
[INFO] finished tweaking git repo https://github.com/mflinn92/rusty-engine
[INFO] tweaked toml for git repo https://github.com/mflinn92/rusty-engine written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mflinn92/rusty-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] 915cda87299a88922bc47af663703baaefabd8b1ec98019ca476f285458607eb
[INFO] running `Command { std: "docker" "start" "-a" "915cda87299a88922bc47af663703baaefabd8b1ec98019ca476f285458607eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "915cda87299a88922bc47af663703baaefabd8b1ec98019ca476f285458607eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915cda87299a88922bc47af663703baaefabd8b1ec98019ca476f285458607eb", kill_on_drop: false }`
[INFO] [stdout] 915cda87299a88922bc47af663703baaefabd8b1ec98019ca476f285458607eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e110d205065c7a2d22167a640829822ae6c3ebeab54eb1025ab65e98a070488
[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" "9e110d205065c7a2d22167a640829822ae6c3ebeab54eb1025ab65e98a070488", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/dom.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `children`
[INFO] [stdout]   --> src/dom.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn children(&self) -> &Vec<Node> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `node_type`
[INFO] [stdout]   --> src/dom.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn node_type(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_tag`
[INFO] [stdout]   --> src/dom.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn get_tag(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_text`
[INFO] [stdout]   --> src/dom.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn get_text(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Stylesheet`
[INFO] [stdout]  --> src/parser/css.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Stylesheet {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rule`
[INFO] [stdout]  --> src/parser/css.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Rule {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Simple`
[INFO] [stdout]   --> src/parser/css.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Simple(SimpleSelector),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Specificity`
[INFO] [stdout]   --> src/parser/css.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub type Specificity = (usize, usize, usize);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `specificity`
[INFO] [stdout]   --> src/parser/css.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn specificity(&self) -> Specificity {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser/css.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Declaration`
[INFO] [stdout]   --> src/parser/css.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Declaration {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]   --> src/parser/css.rs:59:6
[INFO] [stdout]    |
[INFO] [stdout] 59 | enum Value {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Unit`
[INFO] [stdout]   --> src/parser/css.rs:66:6
[INFO] [stdout]    |
[INFO] [stdout] 66 | enum Unit {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Color`
[INFO] [stdout]   --> src/parser/css.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct Color {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Css`
[INFO] [stdout]   --> src/parser/css.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | struct Css {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_char`
[INFO] [stdout]   --> src/parser/css.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn next_char(&self) -> char {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `starts_with`
[INFO] [stdout]   --> src/parser/css.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn starts_with(&self, s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eof`
[INFO] [stdout]   --> src/parser/css.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn eof(&self) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consume_char`
[INFO] [stdout]   --> src/parser/css.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |     fn consume_char(&mut self) -> char {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consume_while`
[INFO] [stdout]    --> src/parser/css.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn consume_while<F>(&mut self, test: F) -> String
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consume_whitespace`
[INFO] [stdout]    --> src/parser/css.rs:115:8
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn consume_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_simple_selector`
[INFO] [stdout]    --> src/parser/css.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 119 |     fn parse_simple_selector(&mut self) -> SimpleSelector {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_identifier`
[INFO] [stdout]    --> src/parser/css.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn parse_identifier(&mut self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_selectors`
[INFO] [stdout]    --> src/parser/css.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn parse_selectors(&mut self) -> Vec<Selector> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `valid_identifier_char`
[INFO] [stdout]    --> src/parser/css.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn valid_identifier_char(c: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "9e110d205065c7a2d22167a640829822ae6c3ebeab54eb1025ab65e98a070488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e110d205065c7a2d22167a640829822ae6c3ebeab54eb1025ab65e98a070488", kill_on_drop: false }`
[INFO] [stdout] 9e110d205065c7a2d22167a640829822ae6c3ebeab54eb1025ab65e98a070488
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a3849164bbe093a334179dc166df8630ab4d7deff7d71c61ba813fce613787f
[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" "7a3849164bbe093a334179dc166df8630ab4d7deff7d71c61ba813fce613787f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Stylesheet`
[INFO] [stdout]  --> src/parser/css.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Stylesheet {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rule`
[INFO] [stdout]  --> src/parser/css.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Rule {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Declaration`
[INFO] [stdout]   --> src/parser/css.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Declaration {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Value`
[INFO] [stdout]   --> src/parser/css.rs:59:6
[INFO] [stdout]    |
[INFO] [stdout] 59 | enum Value {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Unit`
[INFO] [stdout]   --> src/parser/css.rs:66:6
[INFO] [stdout]    |
[INFO] [stdout] 66 | enum Unit {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Color`
[INFO] [stdout]   --> src/parser/css.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct Color {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `starts_with`
[INFO] [stdout]   --> src/parser/css.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn starts_with(&self, s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "7a3849164bbe093a334179dc166df8630ab4d7deff7d71c61ba813fce613787f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a3849164bbe093a334179dc166df8630ab4d7deff7d71c61ba813fce613787f", kill_on_drop: false }`
[INFO] [stdout] 7a3849164bbe093a334179dc166df8630ab4d7deff7d71c61ba813fce613787f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", 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] 908403d8ede1ba938fcba5c3f8ed158a65baa5687ad53bd8ae4af368c20c2984
[INFO] running `Command { std: "docker" "start" "-a" "908403d8ede1ba938fcba5c3f8ed158a65baa5687ad53bd8ae4af368c20c2984", kill_on_drop: false }`
[INFO] [stderr] warning: struct is never constructed: `Stylesheet`
[INFO] [stderr]  --> src/parser/css.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Stylesheet {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rule`
[INFO] [stderr]  --> src/parser/css.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | struct Rule {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Declaration`
[INFO] [stderr]   --> src/parser/css.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 | struct Declaration {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Value`
[INFO] [stderr]   --> src/parser/css.rs:59:6
[INFO] [stderr]    |
[INFO] [stderr] 59 | enum Value {
[INFO] [stderr]    |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Unit`
[INFO] [stderr]   --> src/parser/css.rs:66:6
[INFO] [stderr]    |
[INFO] [stderr] 66 | enum Unit {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Color`
[INFO] [stderr]   --> src/parser/css.rs:71:8
[INFO] [stderr]    |
[INFO] [stderr] 71 | struct Color {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `starts_with`
[INFO] [stderr]   --> src/parser/css.rs:88:8
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn starts_with(&self, s: &str) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rusty_engine-3af27fc3c48121d9)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test dom::tests::test_new_element_node ... ok
[INFO] [stdout] test dom::tests::test_dom_tree ... ok
[INFO] [stdout] test parser::css::tests::test_multiple_selector ... ok
[INFO] [stdout] test parser::css::tests::test_parse_simple_selector_class ... ok
[INFO] [stdout] test parser::css::tests::test_parse_simple_selector_id ... ok
[INFO] [stdout] test parser::css::tests::test_parse_simple_selector_tag ... ok
[INFO] [stdout] test parser::html::tests::test_parse_comment_node ... ok
[INFO] [stdout] test parser::html::tests::test_parse_comment_text ... ok
[INFO] [stdout] test parser::html::tests::test_parse ... ok
[INFO] [stdout] test dom::tests::test_new_text_node ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "908403d8ede1ba938fcba5c3f8ed158a65baa5687ad53bd8ae4af368c20c2984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "908403d8ede1ba938fcba5c3f8ed158a65baa5687ad53bd8ae4af368c20c2984", kill_on_drop: false }`
[INFO] [stdout] 908403d8ede1ba938fcba5c3f8ed158a65baa5687ad53bd8ae4af368c20c2984