[INFO] cloning repository https://github.com/maheshbansod/ser-brow-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maheshbansod/ser-brow-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaheshbansod%2Fser-brow-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaheshbansod%2Fser-brow-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e471857e58b799550537e6e09fd5e7c18b1260a
[INFO] testing maheshbansod/ser-brow-engine against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaheshbansod%2Fser-brow-engine" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maheshbansod/ser-brow-engine on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maheshbansod/ser-brow-engine
[INFO] finished tweaking git repo https://github.com/maheshbansod/ser-brow-engine
[INFO] tweaked toml for git repo https://github.com/maheshbansod/ser-brow-engine written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/maheshbansod/ser-brow-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8100caf526c29241882589c83f1f38cdefa220691e37bb541c9e697e4f3b435a
[INFO] running `Command { std: "docker" "start" "-a" "8100caf526c29241882589c83f1f38cdefa220691e37bb541c9e697e4f3b435a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8100caf526c29241882589c83f1f38cdefa220691e37bb541c9e697e4f3b435a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8100caf526c29241882589c83f1f38cdefa220691e37bb541c9e697e4f3b435a", kill_on_drop: false }`
[INFO] [stdout] 8100caf526c29241882589c83f1f38cdefa220691e37bb541c9e697e4f3b435a
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9135257fae1fd1bff326c880fda8c938de54c058bd909de28d925899b37f3b4
[INFO] running `Command { std: "docker" "start" "-a" "a9135257fae1fd1bff326c880fda8c938de54c058bd909de28d925899b37f3b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling light-browser-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]   --> src/dom.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn id(&self) -> Option<&String> {
[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: `classes`
[INFO] [stdout]   --> src/dom.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn classes(&self) -> HashSet<&str> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consume_till_str`
[INFO] [stdout]   --> src/css_parser.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn consume_till_str(&mut self, string: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StyledNode`
[INFO] [stdout]   --> src/style.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct StyledNode<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `PropertyMap`
[INFO] [stdout]   --> src/style.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | type PropertyMap = HashMap<String, Value>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `matches`
[INFO] [stdout]   --> src/style.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn matches(elem: &ElementData, selector: &Selector) -> bool {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `matches_simple_selector`
[INFO] [stdout]   --> src/style.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn matches_simple_selector(elem: &ElementData, selector: &SimpleSelector) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `MatchedRule`
[INFO] [stdout]   --> src/style.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | type MatchedRule<'a> = (Specificity, &'a Rule);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_rule`
[INFO] [stdout]   --> src/style.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn match_rule<'a>(elem: &ElementData, rule: &'a Rule) -> Option<MatchedRule<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `matching_rules`
[INFO] [stdout]   --> src/style.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn matching_rules<'a>(elem: &ElementData, stylesheet: &'a Stylesheet) -> Vec<MatchedRule<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `specified_values`
[INFO] [stdout]   --> src/style.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn specified_values(elem: &ElementData, stylesheet: &Stylesheet) -> PropertyMap {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `style_tree`
[INFO] [stdout]   --> src/style.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn style_tree<'a>(root: &'a Node, stylesheet: &Stylesheet) -> StyledNode<'a> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/css_parser.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     self.consume_string("}");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/css_parser.rs:278:21
[INFO] [stdout]     |
[INFO] [stdout] 278 |                     self.consume_string("px");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/css_parser.rs:315:9
[INFO] [stdout]     |
[INFO] [stdout] 315 |         self.consume_string("rgb");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a9135257fae1fd1bff326c880fda8c938de54c058bd909de28d925899b37f3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9135257fae1fd1bff326c880fda8c938de54c058bd909de28d925899b37f3b4", kill_on_drop: false }`
[INFO] [stdout] a9135257fae1fd1bff326c880fda8c938de54c058bd909de28d925899b37f3b4
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 990554e7281978ec405f576151806d4a905655beb3a217e610efd6606a79c2af
[INFO] running `Command { std: "docker" "start" "-a" "990554e7281978ec405f576151806d4a905655beb3a217e610efd6606a79c2af", kill_on_drop: false }`
[INFO] [stderr]    Compiling light-browser-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `id`
[INFO] [stdout]   --> src/dom.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn id(&self) -> Option<&String> {
[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: `classes`
[INFO] [stdout]   --> src/dom.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn classes(&self) -> HashSet<&str> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consume_till_str`
[INFO] [stdout]   --> src/css_parser.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn consume_till_str(&mut self, string: &str) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `StyledNode`
[INFO] [stdout]   --> src/style.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct StyledNode<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `PropertyMap`
[INFO] [stdout]   --> src/style.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | type PropertyMap = HashMap<String, Value>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `matches`
[INFO] [stdout]   --> src/style.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn matches(elem: &ElementData, selector: &Selector) -> bool {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `matches_simple_selector`
[INFO] [stdout]   --> src/style.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn matches_simple_selector(elem: &ElementData, selector: &SimpleSelector) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `MatchedRule`
[INFO] [stdout]   --> src/style.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | type MatchedRule<'a> = (Specificity, &'a Rule);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_rule`
[INFO] [stdout]   --> src/style.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn match_rule<'a>(elem: &ElementData, rule: &'a Rule) -> Option<MatchedRule<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `matching_rules`
[INFO] [stdout]   --> src/style.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn matching_rules<'a>(elem: &ElementData, stylesheet: &'a Stylesheet) -> Vec<MatchedRule<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `specified_values`
[INFO] [stdout]   --> src/style.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn specified_values(elem: &ElementData, stylesheet: &Stylesheet) -> PropertyMap {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `style_tree`
[INFO] [stdout]   --> src/style.rs:72:4
[INFO] [stdout]    |
[INFO] [stdout] 72 | fn style_tree<'a>(root: &'a Node, stylesheet: &Stylesheet) -> StyledNode<'a> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/css_parser.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     self.consume_string("}");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/css_parser.rs:278:21
[INFO] [stdout]     |
[INFO] [stdout] 278 |                     self.consume_string("px");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/css_parser.rs:315:9
[INFO] [stdout]     |
[INFO] [stdout] 315 |         self.consume_string("rgb");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "990554e7281978ec405f576151806d4a905655beb3a217e610efd6606a79c2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "990554e7281978ec405f576151806d4a905655beb3a217e610efd6606a79c2af", kill_on_drop: false }`
[INFO] [stdout] 990554e7281978ec405f576151806d4a905655beb3a217e610efd6606a79c2af
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 222e7416902566dc811ff64014ff10c6c8192a318b780fa5ad764ada56e99be6
[INFO] running `Command { std: "docker" "start" "-a" "222e7416902566dc811ff64014ff10c6c8192a318b780fa5ad764ada56e99be6", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: associated function is never used: `id`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/dom.rs:29:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 29 |     pub fn id(&self) -> Option<&String> {
[INFO] [stdout] 
[INFO] [stderr]    |            ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `classes`
[INFO] [stderr]   --> src/dom.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn classes(&self) -> HashSet<&str> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `consume_till_str`
[INFO] [stderr]   --> src/css_parser.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn consume_till_str(&mut self, string: &str) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `StyledNode`
[INFO] [stderr]   --> src/style.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct StyledNode<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `PropertyMap`
[INFO] [stderr]   --> src/style.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | type PropertyMap = HashMap<String, Value>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `matches`
[INFO] [stderr]   --> src/style.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn matches(elem: &ElementData, selector: &Selector) -> bool {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `matches_simple_selector`
[INFO] [stderr]   --> src/style.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn matches_simple_selector(elem: &ElementData, selector: &SimpleSelector) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `MatchedRule`
[INFO] [stderr]   --> src/style.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | type MatchedRule<'a> = (Specificity, &'a Rule);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_rule`
[INFO] [stderr]   --> src/style.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn match_rule<'a>(elem: &ElementData, rule: &'a Rule) -> Option<MatchedRule<'a>> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `matching_rules`
[INFO] [stderr]   --> src/style.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn matching_rules<'a>(elem: &ElementData, stylesheet: &'a Stylesheet) -> Vec<MatchedRule<'a>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `specified_values`
[INFO] [stderr]   --> src/style.rs:59:4
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn specified_values(elem: &ElementData, stylesheet: &Stylesheet) -> PropertyMap {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `style_tree`
[INFO] [stderr]   --> src/style.rs:72:4
[INFO] [stderr]    |
[INFO] [stderr] 72 | fn style_tree<'a>(root: &'a Node, stylesheet: &Stylesheet) -> StyledNode<'a> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/css_parser.rs:235:21
[INFO] [stderr]     |
[INFO] [stderr] 235 |                     self.consume_string("}");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/css_parser.rs:278:21
[INFO] [stderr]     |
[INFO] [stderr] 278 |                     self.consume_string("px");
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/css_parser.rs:315:9
[INFO] [stderr]     |
[INFO] [stderr] 315 |         self.consume_string("rgb");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `light-browser-engine` (bin "light-browser-engine" test) generated 15 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/light_browser_engine-e1010f3e23f337ea)
[INFO] running `Command { std: "docker" "inspect" "222e7416902566dc811ff64014ff10c6c8192a318b780fa5ad764ada56e99be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222e7416902566dc811ff64014ff10c6c8192a318b780fa5ad764ada56e99be6", kill_on_drop: false }`
[INFO] [stdout] 222e7416902566dc811ff64014ff10c6c8192a318b780fa5ad764ada56e99be6