[INFO] updating cached repository cGuille/rushlog
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cGuille/rushlog
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cGuille/rushlog" "work/ex/beta-1.38-1/sources/1.37.0/gh/cGuille/rushlog"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cGuille/rushlog'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cGuille/rushlog" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cGuille/rushlog"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cGuille/rushlog'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c8ef76ef3dbdfa3d28b7fc1738d8b3241e37368d
[INFO] sha for GitHub repo cGuille/rushlog: c8ef76ef3dbdfa3d28b7fc1738d8b3241e37368d
[INFO] validating manifest of cGuille/rushlog 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 cGuille/rushlog 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 cGuille/rushlog
[INFO] finished frobbing cGuille/rushlog
[INFO] frobbed toml for cGuille/rushlog written to work/ex/beta-1.38-1/sources/1.37.0/gh/cGuille/rushlog/Cargo.toml
[INFO] started frobbing cGuille/rushlog
[INFO] finished frobbing cGuille/rushlog
[INFO] frobbed toml for cGuille/rushlog written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cGuille/rushlog/Cargo.toml
[INFO] crate cGuille/rushlog 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cGuille/rushlog against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cGuille/rushlog:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9d67a02a27ca3e06edfdec945856630266231cca7b97f57dcf032e7afeb2e18c
[INFO] running `"docker" "start" "-a" "9d67a02a27ca3e06edfdec945856630266231cca7b97f57dcf032e7afeb2e18c"`
[INFO] [stderr]    Compiling lazy_static v0.2.4
[INFO] [stderr]    Compiling route-recognizer v0.1.11
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling net2 v0.2.27
[INFO] [stderr]    Compiling serde_json v0.9.9
[INFO] [stderr]    Compiling hyper v0.10.5
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling syn v0.11.9
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling twox-hash v1.0.1
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling url v1.4.0
[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-1.4.0/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 serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling serde_derive v0.9.12
[INFO] [stderr]    Compiling env_logger v0.4.2
[INFO] [stderr]    Compiling mysql v10.0.0
[INFO] [stderr] error: trait `io::IoPack` is private
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mysql-10.0.0/src/conn/mod.rs:1044:30
[INFO] [stderr]      |
[INFO] [stderr] 1044 |         let (data, seq_id) = 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-10.0.0/src/conn/mod.rs:1051:22
[INFO] [stderr]      |
[INFO] [stderr] 1051 |         let seq_id = 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-10.0.0/src/conn/mod.rs:1059:23
[INFO] [stderr]      |
[INFO] [stderr] 1059 |         self.seq_id = 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" "9d67a02a27ca3e06edfdec945856630266231cca7b97f57dcf032e7afeb2e18c"`
[INFO] running `"docker" "rm" "-f" "9d67a02a27ca3e06edfdec945856630266231cca7b97f57dcf032e7afeb2e18c"`
[INFO] [stdout] 9d67a02a27ca3e06edfdec945856630266231cca7b97f57dcf032e7afeb2e18c