[INFO] updating cached repository koenigsreiter/freevpn-spawner
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/koenigsreiter/freevpn-spawner
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/koenigsreiter/freevpn-spawner" "work/ex/beta-1.37-6/sources/1.36.0/gh/koenigsreiter/freevpn-spawner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/koenigsreiter/freevpn-spawner'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/koenigsreiter/freevpn-spawner" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/koenigsreiter/freevpn-spawner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/koenigsreiter/freevpn-spawner'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f3a00814607a83ad2a5d5b5b00b18485d302da46
[INFO] sha for GitHub repo koenigsreiter/freevpn-spawner: f3a00814607a83ad2a5d5b5b00b18485d302da46
[INFO] validating manifest of koenigsreiter/freevpn-spawner on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of koenigsreiter/freevpn-spawner on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing koenigsreiter/freevpn-spawner
[INFO] finished frobbing koenigsreiter/freevpn-spawner
[INFO] frobbed toml for koenigsreiter/freevpn-spawner written to work/ex/beta-1.37-6/sources/1.36.0/gh/koenigsreiter/freevpn-spawner/Cargo.toml
[INFO] started frobbing koenigsreiter/freevpn-spawner
[INFO] finished frobbing koenigsreiter/freevpn-spawner
[INFO] frobbed toml for koenigsreiter/freevpn-spawner written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/koenigsreiter/freevpn-spawner/Cargo.toml
[INFO] crate koenigsreiter/freevpn-spawner already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing koenigsreiter/freevpn-spawner against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/koenigsreiter/freevpn-spawner:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] fd7884b53309727615defe9d420aea366e395d5bdab34a409cf2550326ef5878
[INFO] running `"docker" "start" "-a" "fd7884b53309727615defe9d420aea366e395d5bdab34a409cf2550326ef5878"`
[INFO] [stderr]    Compiling syn v0.15.31
[INFO] [stderr]    Compiling ego-tree v0.6.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling subprocess v0.1.18
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling h2 v0.1.18
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.18
[INFO] [stderr]    Compiling ctrlc v3.1.1
[INFO] [stderr]    Compiling hyper v0.12.27
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling cssparser v0.25.3
[INFO] [stderr]    Compiling cssparser-macros v0.3.5
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr] warning[E0506]: cannot assign to `self.input.cached_token` because it is borrowed
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.25.3/src/parser.rs:584:17
[INFO] [stderr]     |
[INFO] [stderr] 559 |     pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> {
[INFO] [stderr]     |                                                   - let's call the lifetime of this reference `'1`
[INFO] [stderr] ...
[INFO] [stderr] 572 |             Some(ref cached_token)
[INFO] [stderr]     |                  ---------------- borrow of `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 584 |                 self.input.cached_token = Some(CachedToken {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 596 |         Ok(token)
[INFO] [stderr]     |         --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1`
[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 markup5ever v0.7.5
[INFO] [stderr]    Compiling cookie_store v0.5.1
[INFO] [stderr]    Compiling reqwest v0.9.15
[INFO] [stderr]    Compiling scraper v0.10.0
[INFO] [stderr]    Compiling freevpn-spawner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `"docker" "inspect" "fd7884b53309727615defe9d420aea366e395d5bdab34a409cf2550326ef5878"`
[INFO] running `"docker" "rm" "-f" "fd7884b53309727615defe9d420aea366e395d5bdab34a409cf2550326ef5878"`
[INFO] [stdout] fd7884b53309727615defe9d420aea366e395d5bdab34a409cf2550326ef5878
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/koenigsreiter/freevpn-spawner:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8cf385fc7cf12befaa05d66b83806425710b1161bcd951d14f3d419fb2535c13
[INFO] running `"docker" "start" "-a" "8cf385fc7cf12befaa05d66b83806425710b1161bcd951d14f3d419fb2535c13"`
[INFO] [stderr]    Compiling freevpn-spawner v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `"docker" "inspect" "8cf385fc7cf12befaa05d66b83806425710b1161bcd951d14f3d419fb2535c13"`
[INFO] running `"docker" "rm" "-f" "8cf385fc7cf12befaa05d66b83806425710b1161bcd951d14f3d419fb2535c13"`
[INFO] [stdout] 8cf385fc7cf12befaa05d66b83806425710b1161bcd951d14f3d419fb2535c13
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/koenigsreiter/freevpn-spawner:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] f8f53710d3008e69558e2f381ba89e79a964a44b7dea7b6c61452a103b97db16
[INFO] running `"docker" "start" "-a" "f8f53710d3008e69558e2f381ba89e79a964a44b7dea7b6c61452a103b97db16"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/freevpn_spawner-cec566dd0edffac1
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f8f53710d3008e69558e2f381ba89e79a964a44b7dea7b6c61452a103b97db16"`
[INFO] running `"docker" "rm" "-f" "f8f53710d3008e69558e2f381ba89e79a964a44b7dea7b6c61452a103b97db16"`
[INFO] [stdout] f8f53710d3008e69558e2f381ba89e79a964a44b7dea7b6c61452a103b97db16