[INFO] updating cached repository McKizzle/meme-bin-rider
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/McKizzle/meme-bin-rider
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/McKizzle/meme-bin-rider" "work/ex/beta-1.38-1/sources/1.37.0/gh/McKizzle/meme-bin-rider"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/McKizzle/meme-bin-rider'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/McKizzle/meme-bin-rider" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/McKizzle/meme-bin-rider"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/McKizzle/meme-bin-rider'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 656ee72a601a577bfce1f37ce3ce6663b4dbb0eb
[INFO] sha for GitHub repo McKizzle/meme-bin-rider: 656ee72a601a577bfce1f37ce3ce6663b4dbb0eb
[INFO] validating manifest of McKizzle/meme-bin-rider on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of McKizzle/meme-bin-rider on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing McKizzle/meme-bin-rider
[INFO] finished frobbing McKizzle/meme-bin-rider
[INFO] frobbed toml for McKizzle/meme-bin-rider written to work/ex/beta-1.38-1/sources/1.37.0/gh/McKizzle/meme-bin-rider/Cargo.toml
[INFO] started frobbing McKizzle/meme-bin-rider
[INFO] finished frobbing McKizzle/meme-bin-rider
[INFO] frobbed toml for McKizzle/meme-bin-rider written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/McKizzle/meme-bin-rider/Cargo.toml
[INFO] crate McKizzle/meme-bin-rider already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing McKizzle/meme-bin-rider against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/McKizzle/meme-bin-rider:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 8f9ae09b5a2b148720473870b8c55a5797e9867171c994f713c166ebdec76a9a
[INFO] running `"docker" "start" "-a" "8f9ae09b5a2b148720473870b8c55a5797e9867171c994f713c166ebdec76a9a"`
[INFO] [stderr]    Compiling state v0.2.0
[INFO] [stderr]    Compiling rocket v0.2.0
[INFO] [stderr]    Compiling rocket_codegen v0.2.0
[INFO] [stderr]    Compiling term-painter v0.2.3
[INFO] [stderr]    Compiling hyper v0.10.4
[INFO] [stderr]    Compiling url v1.4.0
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.0/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `state`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] error: build failed
[INFO] running `"docker" "inspect" "8f9ae09b5a2b148720473870b8c55a5797e9867171c994f713c166ebdec76a9a"`
[INFO] running `"docker" "rm" "-f" "8f9ae09b5a2b148720473870b8c55a5797e9867171c994f713c166ebdec76a9a"`
[INFO] [stdout] 8f9ae09b5a2b148720473870b8c55a5797e9867171c994f713c166ebdec76a9a