[INFO] updating cached repository Croissong/patrician-crawler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Croissong/patrician-crawler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Croissong/patrician-crawler" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/Croissong/patrician-crawler"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/Croissong/patrician-crawler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Croissong/patrician-crawler" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/Croissong/patrician-crawler"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/Croissong/patrician-crawler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9a86a856f0df69f5c4c9e940257b758be799434c
[INFO] sha for GitHub repo Croissong/patrician-crawler: 9a86a856f0df69f5c4c9e940257b758be799434c
[INFO] validating manifest of Croissong/patrician-crawler on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Croissong/patrician-crawler on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Croissong/patrician-crawler
[INFO] finished frobbing Croissong/patrician-crawler
[INFO] frobbed toml for Croissong/patrician-crawler written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/Croissong/patrician-crawler/Cargo.toml
[INFO] started frobbing Croissong/patrician-crawler
[INFO] finished frobbing Croissong/patrician-crawler
[INFO] frobbed toml for Croissong/patrician-crawler written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/Croissong/patrician-crawler/Cargo.toml
[INFO] crate Croissong/patrician-crawler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Croissong/patrician-crawler against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-6/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/Croissong/patrician-crawler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 36d4b22a01901b2bfb69b32ef83414227d475f4b9531f2a019c01df41406c26b
[INFO] running `"docker" "start" "-a" "36d4b22a01901b2bfb69b32ef83414227d475f4b9531f2a019c01df41406c26b"`
[INFO] [stderr]    Compiling serde v1.0.8
[INFO] [stderr]    Compiling quine-mc_cluskey v0.2.4
[INFO] [stderr]     Checking unicode-bidi v0.3.2
[INFO] [stderr]    Compiling advapi32-sys v0.2.0
[INFO] [stderr]    Compiling user32-sys v0.1.2
[INFO] [stderr]     Checking bytes v0.4.3
[INFO] [stderr]     Checking mio v0.6.7
[INFO] [stderr]     Checking idna v0.1.2
[INFO] [stderr]     Checking wio v0.1.2
[INFO] [stderr]     Checking url v1.4.0
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.4.0/src/form_urlencoded.rs:246:40
[INFO] [stderr]     |
[INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 246 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking ws v0.7.1
[INFO] [stderr]    Compiling toml v0.4.1
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling clippy_lints v0.0.135 (https://github.com/Manishearth/rust-clippy#e72c70d0)
[INFO] [stderr]    Compiling cargo_metadata v0.2.1
[INFO] [stderr] error[E0463]: can't find crate for `collections`
[INFO] [stderr]   --> /opt/crater/cargo-home/git/checkouts/rust-clippy-eb94f5e90699ab2d/e72c70d/clippy_lints/src/lib.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | extern crate collections;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `clippy_lints`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "36d4b22a01901b2bfb69b32ef83414227d475f4b9531f2a019c01df41406c26b"`
[INFO] running `"docker" "rm" "-f" "36d4b22a01901b2bfb69b32ef83414227d475f4b9531f2a019c01df41406c26b"`
[INFO] [stdout] 36d4b22a01901b2bfb69b32ef83414227d475f4b9531f2a019c01df41406c26b