[INFO] cloning repository https://github.com/xiekun1992/layout_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiekun1992/layout_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiekun1992%2Flayout_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiekun1992%2Flayout_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fb9e6ba7399b208687ea0238c617485cbf2ad1a
[INFO] checking xiekun1992/layout_rust against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiekun1992%2Flayout_rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiekun1992/layout_rust on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiekun1992/layout_rust
[INFO] finished tweaking git repo https://github.com/xiekun1992/layout_rust
[INFO] tweaked toml for git repo https://github.com/xiekun1992/layout_rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xiekun1992/layout_rust 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] b7cf87d2491967e49a056f002ab78676cee96f42c2985b5c56119e86d8a827f9
[INFO] running `Command { std: "docker" "start" "-a" "b7cf87d2491967e49a056f002ab78676cee96f42c2985b5c56119e86d8a827f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7cf87d2491967e49a056f002ab78676cee96f42c2985b5c56119e86d8a827f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7cf87d2491967e49a056f002ab78676cee96f42c2985b5c56119e86d8a827f9", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30d391536967095404da35d94d617f413f0654eda2302025bb5fcad055b2fa74
[INFO] running `Command { std: "docker" "start" "-a" "30d391536967095404da35d94d617f413f0654eda2302025bb5fcad055b2fa74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
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[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`, and `rc::Rc`
[INFO] [stdout]  --> src/engine/parser.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     borrow::{Borrow, BorrowMut},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 3 |     ops::Add,
[INFO] [stdout] 4 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scraper::node::Element`
[INFO] [stdout]  --> src/engine/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use scraper::node::Element;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::engine::Node`
[INFO] [stdout]   --> src/engine/parser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::engine::Node;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow`, and `rc::Rc`
[INFO] [stdout]  --> src/engine/parser.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 |     borrow::{Borrow, BorrowMut},
[INFO] [stdout]   |              ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 3 |     ops::Add,
[INFO] [stdout] 4 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scraper::node::Element`
[INFO] [stdout]  --> src/engine/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use scraper::node::Element;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::engine::Node`
[INFO] [stdout]   --> src/engine/parser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::engine::Node;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/engine/parser.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let (width, height, background_color) = self.parse_attr(&attr.to_string());
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/engine/parser.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let (width, height, background_color) = self.parse_attr(&attr.to_string());
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `background_color`
[INFO] [stdout]   --> src/engine/parser.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let (width, height, background_color) = self.parse_attr(&attr.to_string());
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_background_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/engine/parser.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let (width, height, background_color) = self.parse_attr(&attr.to_string());
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/engine/parser.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let (width, height, background_color) = self.parse_attr(&attr.to_string());
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `background_color`
[INFO] [stdout]   --> src/engine/parser.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let (width, height, background_color) = self.parse_attr(&attr.to_string());
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_background_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]  --> src/engine/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Node {
[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: struct `Node` is never constructed
[INFO] [stdout]  --> src/engine/mod.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Node {
[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: associated function `new` is never used
[INFO] [stdout]   --> src/engine/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Node {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(__id: u32, width: String, height: String, background_color: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LayoutEngine` is never constructed
[INFO] [stdout]   --> src/engine/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct LayoutEngine {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LayoutEngine` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `set_root` are never used
[INFO] [stdout]   --> src/engine/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl LayoutEngine {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 34 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn set_root(&mut self, root: Node) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]  --> src/engine/div.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ElementDiv {
[INFO] [stdout]   |            ---------- fields in this struct
[INFO] [stdout] 5 |     x: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout] 6 |     y: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ElementDiv` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `layout` is never used
[INFO] [stdout]   --> src/engine/parser.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Parser {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn layout() {}
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/engine/mod.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Node {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn new(__id: u32, width: String, height: String, background_color: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LayoutEngine` is never constructed
[INFO] [stdout]   --> src/engine/mod.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct LayoutEngine {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LayoutEngine` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `set_root` are never used
[INFO] [stdout]   --> src/engine/mod.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl LayoutEngine {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 34 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn set_root(&mut self, root: Node) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]  --> src/engine/div.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct ElementDiv {
[INFO] [stdout]   |            ---------- fields in this struct
[INFO] [stdout] 5 |     x: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout] 6 |     y: usize,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ElementDiv` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `layout` is never used
[INFO] [stdout]   --> src/engine/parser.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Parser {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn layout() {}
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.98s
[INFO] running `Command { std: "docker" "inspect" "30d391536967095404da35d94d617f413f0654eda2302025bb5fcad055b2fa74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30d391536967095404da35d94d617f413f0654eda2302025bb5fcad055b2fa74", kill_on_drop: false }`
[INFO] [stdout] 30d391536967095404da35d94d617f413f0654eda2302025bb5fcad055b2fa74
