[INFO] updating cached repository wdv4758h/tenrus
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wdv4758h/tenrus
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wdv4758h/tenrus" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/wdv4758h/tenrus"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/wdv4758h/tenrus'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wdv4758h/tenrus" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/wdv4758h/tenrus"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/wdv4758h/tenrus'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3d175b304a6ab67623a693de052ec6be569aceec
[INFO] sha for GitHub repo wdv4758h/tenrus: 3d175b304a6ab67623a693de052ec6be569aceec
[INFO] validating manifest of wdv4758h/tenrus on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wdv4758h/tenrus on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wdv4758h/tenrus
[INFO] finished frobbing wdv4758h/tenrus
[INFO] frobbed toml for wdv4758h/tenrus written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/wdv4758h/tenrus/Cargo.toml
[INFO] started frobbing wdv4758h/tenrus
[INFO] finished frobbing wdv4758h/tenrus
[INFO] frobbed toml for wdv4758h/tenrus written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/wdv4758h/tenrus/Cargo.toml
[INFO] crate wdv4758h/tenrus already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking wdv4758h/tenrus against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-5/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/wdv4758h/tenrus:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5fedeba33357c3707754692f4f679a1c2d7eb031350b1bac27dc362e9d92cb73
[INFO] running `"docker" "start" "-a" "5fedeba33357c3707754692f4f679a1c2d7eb031350b1bac27dc362e9d92cb73"`
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]     Checking unicode-normalization v0.1.3
[INFO] [stderr]    Compiling openssl v0.9.6
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]     Checking httparse v1.2.1
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking unicode-segmentation v1.0.1
[INFO] [stderr]     Checking serde v0.8.22
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking unicode-bidi v0.2.4
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking num_cpus v1.2.1
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking mime v0.2.2
[INFO] [stderr]     Checking clap v2.20.0
[INFO] [stderr]     Checking idna v0.1.0
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.6
[INFO] [stderr]     Checking url v1.3.0
[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-1.3.0/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 hyper v0.10.0
[INFO] [stderr]     Checking serde_json v0.8.5
[INFO] [stderr]     Checking native-tls v0.1.1
[INFO] [stderr]     Checking hyper-native-tls v0.2.1
[INFO] [stderr]     Checking tenrus v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.79s
[INFO] running `"docker" "inspect" "5fedeba33357c3707754692f4f679a1c2d7eb031350b1bac27dc362e9d92cb73"`
[INFO] running `"docker" "rm" "-f" "5fedeba33357c3707754692f4f679a1c2d7eb031350b1bac27dc362e9d92cb73"`
[INFO] [stdout] 5fedeba33357c3707754692f4f679a1c2d7eb031350b1bac27dc362e9d92cb73