[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] checking mflinn92/rusty-engine against master#a5db378dc14a40dd1580c27fb8362156446382c3 for pr-136490
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmflinn92%2Frusty-engine" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mflinn92/rusty-engine on toolchain a5db378dc14a40dd1580c27fb8362156446382c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "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-5-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29badfb833c805fa87d3c2d2b7ea6fd4f6fe0566ea5da0a694c1d3e5596afcaa
[INFO] running `Command { std: "docker" "start" "-a" "29badfb833c805fa87d3c2d2b7ea6fd4f6fe0566ea5da0a694c1d3e5596afcaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29badfb833c805fa87d3c2d2b7ea6fd4f6fe0566ea5da0a694c1d3e5596afcaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29badfb833c805fa87d3c2d2b7ea6fd4f6fe0566ea5da0a694c1d3e5596afcaa", kill_on_drop: false }`
[INFO] [stdout] 29badfb833c805fa87d3c2d2b7ea6fd4f6fe0566ea5da0a694c1d3e5596afcaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7286dcf637bd267d1aa30eb3e0a9ed39017dc827528d9c6ee98dfa839360c11
[INFO] running `Command { std: "docker" "start" "-a" "c7286dcf637bd267d1aa30eb3e0a9ed39017dc827528d9c6ee98dfa839360c11", kill_on_drop: false }`
[INFO] [stderr]     Checking 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: fields `children` and `node_type` are never read
[INFO] [stdout]  --> src/dom.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Node {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 5 |     // data common to all nodes
[INFO] [stdout] 6 |     children: Vec<Node>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     node_type: NodeType,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `children`, `node_type`, `get_tag`, and `get_text` are never used
[INFO] [stdout]   --> src/dom.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Node {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn children(&self) -> &Vec<Node> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn node_type(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn get_tag(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     pub fn get_text(&self) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/dom.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Text(String),
[INFO] [stdout]    |     ---- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 59 |     Text(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/dom.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Element(ElementData),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NodeType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 60 |     Element(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tag_name` and `attributes` are never read
[INFO] [stdout]   --> src/dom.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct ElementData {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 65 |     tag_name: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 66 |     attributes: AttrMap,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ElementData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Stylesheet` is never constructed
[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 `Rule` is never constructed
[INFO] [stdout]  --> src/parser/css.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Rule {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Selector` is never used
[INFO] [stdout]   --> src/parser/css.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | enum Selector {
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Specificity` is never used
[INFO] [stdout]   --> src/parser/css.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub type Specificity = (usize, usize, usize);
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `specificity` is never used
[INFO] [stdout]   --> src/parser/css.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Selector {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] 25 |     pub fn specificity(&self) -> Specificity {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SimpleSelector` is never constructed
[INFO] [stdout]   --> src/parser/css.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct SimpleSelector {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/parser/css.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl SimpleSelector {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 42 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Declaration` is never constructed
[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 `Value` is never used
[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 `Unit` is never used
[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 `Color` is never constructed
[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 `Css` is never constructed
[INFO] [stdout]   --> src/parser/css.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | struct Css {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/parser/css.rs:84:8
[INFO] [stdout]     |
[INFO] [stdout] 83  | impl Css {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] 84  |     fn next_char(&self) -> char {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88  |     fn starts_with(&self, s: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92  |     fn eof(&self) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 96  |     fn consume_char(&mut self) -> char {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     fn consume_while<F>(&mut self, test: F) -> String
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn consume_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     fn parse_simple_selector(&mut self) -> SimpleSelector {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 144 |     fn parse_identifier(&mut self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn parse_selectors(&mut self) -> Vec<Selector> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `valid_identifier_char` is never used
[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: struct `Stylesheet` is never constructed
[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 `Rule` is never constructed
[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 `Declaration` is never constructed
[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 `Value` is never used
[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 `Unit` is never used
[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 `Color` is never constructed
[INFO] [stdout]   --> src/parser/css.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct Color {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `starts_with` is never used
[INFO] [stdout]   --> src/parser/css.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | impl Css {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn starts_with(&self, s: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaNJ943o"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-engine` (bin "rusty-engine" test) due to 1 previous error; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c7286dcf637bd267d1aa30eb3e0a9ed39017dc827528d9c6ee98dfa839360c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7286dcf637bd267d1aa30eb3e0a9ed39017dc827528d9c6ee98dfa839360c11", kill_on_drop: false }`
[INFO] [stdout] c7286dcf637bd267d1aa30eb3e0a9ed39017dc827528d9c6ee98dfa839360c11