Nov 30 00:02:20.284 INFO checking kingswanwho/Crawler against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 00:02:20.284 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 00:02:20.868 INFO [stdout] 76ef5098c9f8a6ecea62fc9c61d34062011b753a6d594f695eeda46267a42658
Nov 30 00:02:20.874 INFO running `"docker" "start" "-a" "76ef5098c9f8a6ecea62fc9c61d34062011b753a6d594f695eeda46267a42658"`
Nov 30 00:02:21.829 INFO [stderr] usermod: no changes
Nov 30 00:02:22.060 INFO [stderr]    Compiling gcc v0.3.47
Nov 30 00:02:22.060 INFO [stderr]    Compiling openssl v0.9.12
Nov 30 00:02:22.096 INFO [stderr]    Compiling string_cache v0.2.29
Nov 30 00:02:22.096 INFO [stderr]    Compiling html5ever v0.5.4
Nov 30 00:02:27.188 INFO [stderr]    Compiling openssl-sys v0.9.12
Nov 30 00:02:27.248 INFO [stderr]    Compiling backtrace-sys v0.1.11
Nov 30 00:02:40.313 INFO [stderr]     Checking native-tls v0.1.2
Nov 30 00:02:42.326 INFO [stderr]     Checking hyper-native-tls v0.2.2
Nov 30 00:02:44.294 INFO [stderr]     Checking select v0.3.0
Nov 30 00:02:49.948 INFO [stderr]     Checking backtrace v0.3.2
Nov 30 00:02:50.546 INFO [stderr]     Checking error-chain v0.8.1
Nov 30 00:02:51.196 INFO [stderr]     Checking bb v0.1.0 (/source)
Nov 30 00:02:53.959 INFO [stderr] warning: function is never used: `sync_pop_url`
Nov 30 00:02:53.959 INFO [stderr]   --> src/function.rs:25:1
Nov 30 00:02:53.959 INFO [stderr]    |
Nov 30 00:02:53.959 INFO [stderr] 25 | pub fn sync_pop_url(queue: &Arc<Mutex<VecDeque<Url>>>) -> Option<Url> {
Nov 30 00:02:53.960 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:02:53.960 INFO [stderr]    |
Nov 30 00:02:53.960 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 00:02:53.961 INFO [stderr] 
Nov 30 00:02:53.961 INFO [stderr] warning: method is never used: `check_empty`
Nov 30 00:02:53.961 INFO [stderr]   --> src/crawler.rs:58:2
Nov 30 00:02:53.961 INFO [stderr]    |
Nov 30 00:02:53.962 INFO [stderr] 58 |     pub fn check_empty(&self) -> bool {
Nov 30 00:02:53.962 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:02:53.962 INFO [stderr] 
Nov 30 00:02:53.963 INFO [stderr] warning: method is never used: `pop`
Nov 30 00:02:53.963 INFO [stderr]   --> src/crawler.rs:63:2
Nov 30 00:02:53.963 INFO [stderr]    |
Nov 30 00:02:53.963 INFO [stderr] 63 |     pub fn pop(&self) -> Option<Url> {
Nov 30 00:02:53.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:02:53.964 INFO [stderr] 
Nov 30 00:02:53.964 INFO [stderr] warning: method is never used: `push`
Nov 30 00:02:53.964 INFO [stderr]   --> src/crawler.rs:67:2
Nov 30 00:02:53.965 INFO [stderr]    |
Nov 30 00:02:53.965 INFO [stderr] 67 |     pub fn push(&self, url: Url) -> Result<()> {
Nov 30 00:02:53.965 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 00:02:53.966 INFO [stderr] 
Nov 30 00:02:54.040 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.18s
Nov 30 00:02:54.058 INFO [stderr] su: No module specific data is present
Nov 30 00:02:54.982 INFO running `"docker" "inspect" "76ef5098c9f8a6ecea62fc9c61d34062011b753a6d594f695eeda46267a42658"`
Nov 30 00:02:55.320 INFO running `"docker" "rm" "-f" "76ef5098c9f8a6ecea62fc9c61d34062011b753a6d594f695eeda46267a42658"`
Nov 30 00:02:55.628 INFO [stdout] 76ef5098c9f8a6ecea62fc9c61d34062011b753a6d594f695eeda46267a42658