[INFO] updating cached repository jkhsjdhjs/chell
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jkhsjdhjs/chell
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jkhsjdhjs/chell" "work/ex/beta-1.38-1/sources/1.37.0/gh/jkhsjdhjs/chell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jkhsjdhjs/chell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jkhsjdhjs/chell" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jkhsjdhjs/chell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jkhsjdhjs/chell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8b752085e5dde10db9acd0ba7e7a0f18b39282a5
[INFO] sha for GitHub repo jkhsjdhjs/chell: 8b752085e5dde10db9acd0ba7e7a0f18b39282a5
[INFO] validating manifest of jkhsjdhjs/chell 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 jkhsjdhjs/chell 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 jkhsjdhjs/chell
[INFO] finished frobbing jkhsjdhjs/chell
[INFO] frobbed toml for jkhsjdhjs/chell written to work/ex/beta-1.38-1/sources/1.37.0/gh/jkhsjdhjs/chell/Cargo.toml
[INFO] started frobbing jkhsjdhjs/chell
[INFO] finished frobbing jkhsjdhjs/chell
[INFO] frobbed toml for jkhsjdhjs/chell written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jkhsjdhjs/chell/Cargo.toml
[INFO] crate jkhsjdhjs/chell 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 jkhsjdhjs/chell 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-5/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/jkhsjdhjs/chell:/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] a70e056689ef0e454d4d910db58c1410372df1dab2d5069402ad76e9ff503fd0
[INFO] running `"docker" "start" "-a" "a70e056689ef0e454d4d910db58c1410372df1dab2d5069402ad76e9ff503fd0"`
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling openssl v0.9.20
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling serde v1.0.19
[INFO] [stderr]    Compiling smallvec v0.4.4
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling fnv v1.0.5
[INFO] [stderr]    Compiling bufstream v0.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.20
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling atoi v0.2.2
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling base64 v0.7.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling url v1.6.0
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling rand v0.3.18
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling bytes v0.4.5
[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-1.6.0/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]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling mio v0.6.11
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling tokio-io v0.1.3
[INFO] [stderr]    Compiling twox-hash v1.1.0
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.19
[INFO] [stderr]    Compiling tokio-core v0.1.10
[INFO] [stderr]    Compiling tokio-mockstream v1.1.0
[INFO] [stderr]    Compiling native-tls v0.1.4
[INFO] [stderr]    Compiling serde_json v1.0.5
[INFO] [stderr]    Compiling toml v0.4.5
[INFO] [stderr]    Compiling tokio-tls v0.1.3
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling mysql_common v0.2.0
[INFO] [stderr]    Compiling irc v0.12.5
[INFO] [stderr]    Compiling mysql v12.0.3
[INFO] [stderr]    Compiling chell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(conservative_impl_trait)]
[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 `chell`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a70e056689ef0e454d4d910db58c1410372df1dab2d5069402ad76e9ff503fd0"`
[INFO] running `"docker" "rm" "-f" "a70e056689ef0e454d4d910db58c1410372df1dab2d5069402ad76e9ff503fd0"`
[INFO] [stdout] a70e056689ef0e454d4d910db58c1410372df1dab2d5069402ad76e9ff503fd0