[INFO] updating cached repository giovanniberti/dbench
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/giovanniberti/dbench
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/giovanniberti/dbench" "work/ex/beta-1.38-1/sources/1.37.0/gh/giovanniberti/dbench"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/giovanniberti/dbench'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/giovanniberti/dbench" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/giovanniberti/dbench"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/giovanniberti/dbench'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3263f5ed5a25979f9d9954c49cc96e44708a97ae
[INFO] sha for GitHub repo giovanniberti/dbench: 3263f5ed5a25979f9d9954c49cc96e44708a97ae
[INFO] validating manifest of giovanniberti/dbench 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 giovanniberti/dbench 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 giovanniberti/dbench
[INFO] finished frobbing giovanniberti/dbench
[INFO] frobbed toml for giovanniberti/dbench written to work/ex/beta-1.38-1/sources/1.37.0/gh/giovanniberti/dbench/Cargo.toml
[INFO] started frobbing giovanniberti/dbench
[INFO] finished frobbing giovanniberti/dbench
[INFO] frobbed toml for giovanniberti/dbench written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/giovanniberti/dbench/Cargo.toml
[INFO] crate giovanniberti/dbench 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 giovanniberti/dbench 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-6/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/giovanniberti/dbench:/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] f5afb8db25227dd2fc9a52d4723968ed16e773328fcd5e954eca8d5f77fab5d3
[INFO] running `"docker" "start" "-a" "f5afb8db25227dd2fc9a52d4723968ed16e773328fcd5e954eca8d5f77fab5d3"`
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling term_size v0.2.1
[INFO] [stderr]    Compiling num_cpus v1.2.1
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling r2d2 v0.7.1
[INFO] [stderr]    Compiling twox-hash v1.0.0
[INFO] [stderr]    Compiling postgres-protocol v0.2.0
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling clap v2.19.2
[INFO] [stderr]    Compiling rpassword v0.3.0
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling postgres v0.13.4
[INFO] [stderr]    Compiling url v1.2.4
[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-1.2.4/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 r2d2_postgres v0.11.1
[INFO] [stderr]    Compiling mysql v8.0.0
[INFO] [stderr] error: trait `io::IoPack` is private
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mysql-8.0.0/src/conn/mod.rs:1043:35
[INFO] [stderr]      |
[INFO] [stderr] 1043 |         let (data, seq_id) = try!(self.get_mut_stream().as_mut().read_packet(old_seq_id));
[INFO] [stderr]      |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: trait `io::IoPack` is private
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mysql-8.0.0/src/conn/mod.rs:1050:27
[INFO] [stderr]      |
[INFO] [stderr] 1050 |         let seq_id = try!(self.get_mut_stream().as_mut().drop_packet(old_seq_id));
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: trait `io::IoPack` is private
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mysql-8.0.0/src/conn/mod.rs:1058:28
[INFO] [stderr]      |
[INFO] [stderr] 1058 |         self.seq_id = try!(self.get_mut_stream().as_mut().write_packet(data, seq_id, max_allowed_packet));
[INFO] [stderr]      |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `mysql`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f5afb8db25227dd2fc9a52d4723968ed16e773328fcd5e954eca8d5f77fab5d3"`
[INFO] running `"docker" "rm" "-f" "f5afb8db25227dd2fc9a52d4723968ed16e773328fcd5e954eca8d5f77fab5d3"`
[INFO] [stdout] f5afb8db25227dd2fc9a52d4723968ed16e773328fcd5e954eca8d5f77fab5d3