[INFO] updating cached repository brandur/middleware-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/brandur/middleware-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/brandur/middleware-rust" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/brandur/middleware-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/brandur/middleware-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/brandur/middleware-rust" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/brandur/middleware-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/brandur/middleware-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 14706c69f8c99369ed85d1105df8ebc42c85fa8b
[INFO] sha for GitHub repo brandur/middleware-rust: 14706c69f8c99369ed85d1105df8ebc42c85fa8b
[INFO] validating manifest of brandur/middleware-rust on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of brandur/middleware-rust on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing brandur/middleware-rust
[INFO] finished frobbing brandur/middleware-rust
[INFO] frobbed toml for brandur/middleware-rust written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/brandur/middleware-rust/Cargo.toml
[INFO] started frobbing brandur/middleware-rust
[INFO] finished frobbing brandur/middleware-rust
[INFO] frobbed toml for brandur/middleware-rust written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/brandur/middleware-rust/Cargo.toml
[INFO] crate brandur/middleware-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking brandur/middleware-rust against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-7/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/brandur/middleware-rust:/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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ca8b217d8eb1ffa560bffe7696fce96c1c09bc1ecc51337c09d4cdc33b6eab44
[INFO] running `"docker" "start" "-a" "ca8b217d8eb1ffa560bffe7696fce96c1c09bc1ecc51337c09d4cdc33b6eab44"`
[INFO] [stderr]     Checking slog v2.1.1
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling actix_derive v0.1.1
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]     Checking isatty v0.1.6
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.0
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking http v0.1.5
[INFO] [stderr]     Checking mio v0.6.13
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking regex v0.2.6
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]    Compiling remove_dir_all v0.3.0
[INFO] [stderr]     Checking slog-async v2.2.0
[INFO] [stderr]     Checking chrono v0.4.0
[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-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     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]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]     Checking mio-uds v0.6.4
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]     Checking env_logger v0.5.4
[INFO] [stderr]    Compiling mime_guess v1.8.4
[INFO] [stderr]     Checking slog-term v2.3.0
[INFO] [stderr]     Checking tokio-signal v0.1.4
[INFO] [stderr]     Checking h2 v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]     Checking cookie v0.10.1
[INFO] [stderr]    Compiling actix v0.4.5
[INFO] [stderr]    Compiling actix-web v0.3.3
[INFO] [stderr]     Checking middleware-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `"docker" "inspect" "ca8b217d8eb1ffa560bffe7696fce96c1c09bc1ecc51337c09d4cdc33b6eab44"`
[INFO] running `"docker" "rm" "-f" "ca8b217d8eb1ffa560bffe7696fce96c1c09bc1ecc51337c09d4cdc33b6eab44"`
[INFO] [stdout] ca8b217d8eb1ffa560bffe7696fce96c1c09bc1ecc51337c09d4cdc33b6eab44