[INFO] cloning repository https://github.com/dowdiness/toy-browser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dowdiness/toy-browser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Ftoy-browser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Ftoy-browser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 916626523574f7785c0b9bf7f01065ea39727e8c
[INFO] checking dowdiness/toy-browser against master#453ceafce32ef8108c604bca5e165ab41d3d6d8c for pr-124187
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Ftoy-browser" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dowdiness/toy-browser on toolchain 453ceafce32ef8108c604bca5e165ab41d3d6d8c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+453ceafce32ef8108c604bca5e165ab41d3d6d8c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dowdiness/toy-browser
[INFO] finished tweaking git repo https://github.com/dowdiness/toy-browser
[INFO] tweaked toml for git repo https://github.com/dowdiness/toy-browser written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dowdiness/toy-browser 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" "+453ceafce32ef8108c604bca5e165ab41d3d6d8c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking dowdiness/toy-browser against try#773c42f0166e62a538b8fa36161b0c6df69a9640 for pr-124187
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Ftoy-browser" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dowdiness/toy-browser on toolchain 773c42f0166e62a538b8fa36161b0c6df69a9640
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+773c42f0166e62a538b8fa36161b0c6df69a9640" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dowdiness/toy-browser
[INFO] finished tweaking git repo https://github.com/dowdiness/toy-browser
[INFO] tweaked toml for git repo https://github.com/dowdiness/toy-browser written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dowdiness/toy-browser 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" "+773c42f0166e62a538b8fa36161b0c6df69a9640" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking dowdiness/toy-browser against try#773c42f0166e62a538b8fa36161b0c6df69a9640 for pr-124187
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Ftoy-browser" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dowdiness/toy-browser on toolchain 773c42f0166e62a538b8fa36161b0c6df69a9640
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+773c42f0166e62a538b8fa36161b0c6df69a9640" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dowdiness/toy-browser
[INFO] finished tweaking git repo https://github.com/dowdiness/toy-browser
[INFO] tweaked toml for git repo https://github.com/dowdiness/toy-browser written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dowdiness/toy-browser 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" "+773c42f0166e62a538b8fa36161b0c6df69a9640" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+773c42f0166e62a538b8fa36161b0c6df69a9640" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eafa505e61699c86ba3c9c4558ed77e391109cc4738e631dc3f32d1363cc94ba
[INFO] running `Command { std: "docker" "start" "-a" "eafa505e61699c86ba3c9c4558ed77e391109cc4738e631dc3f32d1363cc94ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eafa505e61699c86ba3c9c4558ed77e391109cc4738e631dc3f32d1363cc94ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eafa505e61699c86ba3c9c4558ed77e391109cc4738e631dc3f32d1363cc94ba", kill_on_drop: false }`
[INFO] [stdout] eafa505e61699c86ba3c9c4558ed77e391109cc4738e631dc3f32d1363cc94ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+773c42f0166e62a538b8fa36161b0c6df69a9640" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0114b34c710459fd4026cbdee844636eb73228f67ea37299a4933bae68bc022a
[INFO] running `Command { std: "docker" "start" "-a" "0114b34c710459fd4026cbdee844636eb73228f67ea37299a4933bae68bc022a", kill_on_drop: false }`
[INFO] [stderr]     Checking toy-browser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> src/html.rs:30:34
[INFO] [stdout]    |
[INFO] [stdout] 30 |   fn consume_while<F>(&mut self, test: F) -> String {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> src/html.rs:30:34
[INFO] [stdout]    |
[INFO] [stdout] 30 |   fn consume_while<F>(&mut self, test: F) -> String {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text` is never used
[INFO] [stdout]   --> src/dom.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn text(data: String) -> Node {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]  --> src/html.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Parser {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `elem` is never used
[INFO] [stdout]   --> src/dom.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn elem(name: String, attrs: AttrMap, children: Vec<Node>) -> Node {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]  --> src/html.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Parser {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/html.rs:9:6
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Parser {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 9  |   fn next_char(&self) -> char {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |   fn starts_with(&self, s: &str) -> bool {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |   fn eof(&self) -> bool {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |   fn consume_char(&mut self) -> char {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |   fn consume_while<F>(&mut self, test: F) -> String {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |   fn consume_whitespace(&mut self) {}
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |
[INFO] [stdout] 36 |   fn parse_tag_name(&mut self) -> String {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |   fn parse_node(&mut self) -> dom::Node {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/html.rs:9:6
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl Parser {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 9  |   fn next_char(&self) -> char {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |   fn starts_with(&self, s: &str) -> bool {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |   fn eof(&self) -> bool {
[INFO] [stdout]    |      ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |   fn consume_char(&mut self) -> char {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |   fn consume_while<F>(&mut self, test: F) -> String {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |   fn consume_whitespace(&mut self) {}
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |
[INFO] [stdout] 36 |   fn parse_tag_name(&mut self) -> String {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |   fn parse_node(&mut self) -> dom::Node {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "0114b34c710459fd4026cbdee844636eb73228f67ea37299a4933bae68bc022a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0114b34c710459fd4026cbdee844636eb73228f67ea37299a4933bae68bc022a", kill_on_drop: false }`
[INFO] [stdout] 0114b34c710459fd4026cbdee844636eb73228f67ea37299a4933bae68bc022a