[INFO] updating cached repository bugabinga/web_article_read_mode
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bugabinga/web_article_read_mode
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bugabinga/web_article_read_mode" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bugabinga/web_article_read_mode"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bugabinga/web_article_read_mode'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bugabinga/web_article_read_mode" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bugabinga/web_article_read_mode"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bugabinga/web_article_read_mode'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d729e77895ac68c4e9ede4b7dd666f789aa1aad6
[INFO] sha for GitHub repo bugabinga/web_article_read_mode: d729e77895ac68c4e9ede4b7dd666f789aa1aad6
[INFO] validating manifest of bugabinga/web_article_read_mode on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bugabinga/web_article_read_mode on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bugabinga/web_article_read_mode
[INFO] finished frobbing bugabinga/web_article_read_mode
[INFO] frobbed toml for bugabinga/web_article_read_mode written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bugabinga/web_article_read_mode/Cargo.toml
[INFO] started frobbing bugabinga/web_article_read_mode
[INFO] finished frobbing bugabinga/web_article_read_mode
[INFO] frobbed toml for bugabinga/web_article_read_mode written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bugabinga/web_article_read_mode/Cargo.toml
[INFO] crate bugabinga/web_article_read_mode already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bugabinga/web_article_read_mode against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bugabinga/web_article_read_mode:/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 208a2cd2053fa902cce156e7a83bcc19035fdd482bc545a10b3bcb6b2af8ebcd
[INFO] running `"docker" "start" "-a" "208a2cd2053fa902cce156e7a83bcc19035fdd482bc545a10b3bcb6b2af8ebcd"`
[INFO] [stderr]     Checking maplit v0.1.4
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking phf_shared v0.7.21
[INFO] [stderr]     Checking utf-8 v0.6.0
[INFO] [stderr]     Checking mime v0.2.4
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]    Compiling hyper v0.10.10
[INFO] [stderr]     Checking futf v0.1.3
[INFO] [stderr]     Checking url v1.4.0
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]     Checking tendril v0.2.4
[INFO] [stderr]    Compiling phf_generator v0.7.21
[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]    Compiling string_cache_codegen v0.3.1
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling html5ever v0.13.1
[INFO] [stderr]    Compiling string_cache v0.4.0
[INFO] [stderr]    Compiling html5ever-atoms v0.2.2
[INFO] [stderr]     Checking ammonia v0.3.0
[INFO] [stderr]     Checking web_article_read_mode v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.13s
[INFO] running `"docker" "inspect" "208a2cd2053fa902cce156e7a83bcc19035fdd482bc545a10b3bcb6b2af8ebcd"`
[INFO] running `"docker" "rm" "-f" "208a2cd2053fa902cce156e7a83bcc19035fdd482bc545a10b3bcb6b2af8ebcd"`
[INFO] [stdout] 208a2cd2053fa902cce156e7a83bcc19035fdd482bc545a10b3bcb6b2af8ebcd