[INFO] cloning repository https://github.com/tclaus/web_crawler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tclaus/web_crawler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftclaus%2Fweb_crawler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftclaus%2Fweb_crawler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 464d50ecf6f33e2e243ddf11137c85b8c7b43f36
[INFO] checking tclaus/web_crawler against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftclaus%2Fweb_crawler" "/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/tclaus/web_crawler on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tclaus/web_crawler
[INFO] finished tweaking git repo https://github.com/tclaus/web_crawler
[INFO] tweaked toml for git repo https://github.com/tclaus/web_crawler written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tclaus/web_crawler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] f8be6a0069528901a4f4bf71a33aecb2a92b4ed5d193b69c192f3c9744cf96b0
[INFO] running `Command { std: "docker" "start" "-a" "f8be6a0069528901a4f4bf71a33aecb2a92b4ed5d193b69c192f3c9744cf96b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8be6a0069528901a4f4bf71a33aecb2a92b4ed5d193b69c192f3c9744cf96b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8be6a0069528901a4f4bf71a33aecb2a92b4ed5d193b69c192f3c9744cf96b0", kill_on_drop: false }`
[INFO] [stdout] f8be6a0069528901a4f4bf71a33aecb2a92b4ed5d193b69c192f3c9744cf96b0
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0372f6da63f41f7cc46135b2b2854cd700e3959f312b161af7a5d18e09a0ebb6
[INFO] running `Command { std: "docker" "start" "-a" "0372f6da63f41f7cc46135b2b2854cd700e3959f312b161af7a5d18e09a0ebb6", kill_on_drop: false }`
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[INFO] [stderr]    Compiling markup5ever v0.8.1
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[INFO] [stderr]    Compiling elastic_derive v0.21.0-pre.5
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[INFO] [stderr]     Checking web_crawler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Accessible`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Accessible(Url),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BadStatus`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     BadStatus(Url, StatusCode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ConnectionFailed`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ConnectionFailed(Url),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TimedOut`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     TimedOut(Url),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Malformed`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Malformed(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidLink`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     InvalidLink(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_head_tags`
[INFO] [stdout]    --> src/web_crawler/parse.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn get_head_tags(document: &Document) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Accessible`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Accessible(Url),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BadStatus`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     BadStatus(Url, StatusCode),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ConnectionFailed`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ConnectionFailed(Url),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `TimedOut`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     TimedOut(Url),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Malformed`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Malformed(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidLink`
[INFO] [stdout]   --> src/web_crawler/fetch.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     InvalidLink(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_head_tags`
[INFO] [stdout]    --> src/web_crawler/parse.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn get_head_tags(document: &Document) -> Vec<String> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 47s
[INFO] running `Command { std: "docker" "inspect" "0372f6da63f41f7cc46135b2b2854cd700e3959f312b161af7a5d18e09a0ebb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0372f6da63f41f7cc46135b2b2854cd700e3959f312b161af7a5d18e09a0ebb6", kill_on_drop: false }`
[INFO] [stdout] 0372f6da63f41f7cc46135b2b2854cd700e3959f312b161af7a5d18e09a0ebb6