[INFO] updating cached repository https://github.com/shioju/sumr
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/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] b3cffa0bfb4b53a571de5bea97f2659f18032343
[INFO] checking shioju/sumr against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshioju%2Fsumr" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shioju/sumr on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/shioju/sumr
[INFO] finished tweaking git repo https://github.com/shioju/sumr
[INFO] tweaked toml for git repo https://github.com/shioju/sumr written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/shioju/sumr already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 474fb6a9f4a028cd4f72b3dc709abf342030de72c060a5c554397991312d2ce9
[INFO] running `"docker" "start" "-a" "474fb6a9f4a028cd4f72b3dc709abf342030de72c060a5c554397991312d2ce9"`
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]    Compiling openssl v0.9.7
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]    Compiling quote v0.3.13
[INFO] [stderr]     Checking serde v0.9.8
[INFO] [stderr]    Compiling synom v0.11.0
[INFO] [stderr]    Compiling hyper v0.10.4
[INFO] [stderr]     Checking idna v0.1.0
[INFO] [stderr]    Compiling syn v0.11.6
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking num_cpus v1.2.1
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking aho-corasick v0.6.2
[INFO] [stderr]    Compiling openssl-sys v0.9.7
[INFO] [stderr]     Checking url v1.4.0
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/rustwide/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]    Compiling serde_codegen_internals v0.14.0
[INFO] [stderr]     Checking docopt v0.7.0
[INFO] [stderr]    Compiling serde_derive v0.9.8
[INFO] [stderr]     Checking native-tls v0.1.1
[INFO] [stderr]     Checking serde_json v0.9.8
[INFO] [stderr]     Checking serde_urlencoded v0.4.2
[INFO] [stderr]     Checking toml v0.3.1
[INFO] [stderr]     Checking hyper-native-tls v0.2.2
[INFO] [stderr]     Checking reqwest v0.4.0
[INFO] [stderr]     Checking sumr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.93s
[INFO] running `"docker" "inspect" "474fb6a9f4a028cd4f72b3dc709abf342030de72c060a5c554397991312d2ce9"`
[INFO] running `"docker" "rm" "-f" "474fb6a9f4a028cd4f72b3dc709abf342030de72c060a5c554397991312d2ce9"`
[INFO] [stdout] 474fb6a9f4a028cd4f72b3dc709abf342030de72c060a5c554397991312d2ce9