[INFO] updating cached repository https://github.com/Menkir/resa
[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] 8371423fe0e2301e15f134c91079a2c0b12e950b
[INFO] checking Menkir/resa against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FMenkir%2Fresa" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Menkir/resa on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Menkir/resa
[INFO] finished tweaking git repo https://github.com/Menkir/resa
[INFO] tweaked toml for git repo https://github.com/Menkir/resa written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Menkir/resa already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 59843f84fd3dffda11460322ba03ad9af796627e55ebb0f91719678b96000337
[INFO] running `"docker" "start" "-a" "59843f84fd3dffda11460322ba03ad9af796627e55ebb0f91719678b96000337"`
[INFO] [stderr]     Checking serde v1.0.55
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]    Compiling openssl-sys v0.9.30
[INFO] [stderr]     Checking colored v1.6.0
[INFO] [stderr]     Checking aho-corasick v0.6.5
[INFO] [stderr]     Checking idna v0.1.4
[INFO] [stderr]    Compiling syn v0.13.10
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]     Checking mime v0.3.7
[INFO] [stderr]     Checking libflate v0.1.14
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]     Checking phf v0.7.22
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr]    Compiling openssl v0.9.24
[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-1.7.0/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]     Checking hyper v0.11.26
[INFO] [stderr]     Checking extractor v0.1.0
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.55
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking serde_urlencoded v0.5.1
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking reqwest v0.8.5
[INFO] [stderr]     Checking resa v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |         let mut temp = StackOverflow::search(&q);
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |         for mut s in so.clone().into_iter() {
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |         let mut temp = StackOverflow::search(&q);
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin.rs:85:13
[INFO] [stderr]    |
[INFO] [stderr] 85 |         for mut s in so.clone().into_iter() {
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `"docker" "inspect" "59843f84fd3dffda11460322ba03ad9af796627e55ebb0f91719678b96000337"`
[INFO] running `"docker" "rm" "-f" "59843f84fd3dffda11460322ba03ad9af796627e55ebb0f91719678b96000337"`
[INFO] [stdout] 59843f84fd3dffda11460322ba03ad9af796627e55ebb0f91719678b96000337