[INFO] updating cached repository https://github.com/liamlmy/Web-Crawler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d7e535dda5386c9df727d251e9c059b9b18155a3
[INFO] checking liamlmy/Web-Crawler against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliamlmy%2FWeb-Crawler" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liamlmy/Web-Crawler on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/liamlmy/Web-Crawler
[INFO] finished tweaking git repo https://github.com/liamlmy/Web-Crawler
[INFO] tweaked toml for git repo https://github.com/liamlmy/Web-Crawler written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/liamlmy/Web-Crawler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 211458d6c89a8a7d17ae1d2e06158eaa31d1cd20e4615b98cf2f13f2a9d24044
[INFO] running `"docker" "start" "-a" "211458d6c89a8a7d17ae1d2e06158eaa31d1cd20e4615b98cf2f13f2a9d24044"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]     Checking utf-8 v0.6.0
[INFO] [stderr]    Compiling string_cache v0.2.29
[INFO] [stderr]    Compiling html5ever v0.5.4
[INFO] [stderr]     Checking tendril v0.2.4
[INFO] [stderr]     Checking select v0.3.0
[INFO] [stderr]     Checking backtrace v0.3.2
[INFO] [stderr]     Checking error-chain v0.8.1
[INFO] [stderr]     Checking bb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr] 5  | / error_chain!{
[INFO] [stderr] 6  | |     foreign_links {
[INFO] [stderr] 7  | |         Io(::std::io::Error);
[INFO] [stderr] 8  | |         Hyper(::hyper::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     }
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr] 5  | / error_chain!{
[INFO] [stderr] 6  | |     foreign_links {
[INFO] [stderr] 7  | |         Io(::std::io::Error);
[INFO] [stderr] 8  | |         Hyper(::hyper::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     }
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr] 5  | / error_chain!{
[INFO] [stderr] 6  | |     foreign_links {
[INFO] [stderr] 7  | |         Io(::std::io::Error);
[INFO] [stderr] 8  | |         Hyper(::hyper::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     }
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr] 5  | / error_chain!{
[INFO] [stderr] 6  | |     foreign_links {
[INFO] [stderr] 7  | |         Io(::std::io::Error);
[INFO] [stderr] 8  | |         Hyper(::hyper::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 21 | |     }
[INFO] [stderr] 22 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sync_pop_url`
[INFO] [stderr]   --> src/function.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn sync_pop_url(queue: &Arc<Mutex<VecDeque<Url>>>) -> Option<Url> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `check_empty`
[INFO] [stderr]   --> src/crawler.rs:58:2
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn check_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/crawler.rs:63:2
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn pop(&self) -> Option<Url> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/crawler.rs:67:2
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn push(&self, url: Url) -> Result<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.79s
[INFO] running `"docker" "inspect" "211458d6c89a8a7d17ae1d2e06158eaa31d1cd20e4615b98cf2f13f2a9d24044"`
[INFO] running `"docker" "rm" "-f" "211458d6c89a8a7d17ae1d2e06158eaa31d1cd20e4615b98cf2f13f2a9d24044"`
[INFO] [stdout] 211458d6c89a8a7d17ae1d2e06158eaa31d1cd20e4615b98cf2f13f2a9d24044