[INFO] updating cached repository nicguzzo/keyboard-app
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nicguzzo/keyboard-app
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nicguzzo/keyboard-app" "work/ex/beta-1.37-6/sources/1.36.0/gh/nicguzzo/keyboard-app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nicguzzo/keyboard-app'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nicguzzo/keyboard-app" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nicguzzo/keyboard-app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nicguzzo/keyboard-app'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64665a26d4084445c7cb4dc5156dc21c1e79f907
[INFO] sha for GitHub repo nicguzzo/keyboard-app: 64665a26d4084445c7cb4dc5156dc21c1e79f907
[INFO] validating manifest of nicguzzo/keyboard-app 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 nicguzzo/keyboard-app 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 nicguzzo/keyboard-app
[INFO] finished frobbing nicguzzo/keyboard-app
[INFO] frobbed toml for nicguzzo/keyboard-app written to work/ex/beta-1.37-6/sources/1.36.0/gh/nicguzzo/keyboard-app/Cargo.toml
[INFO] started frobbing nicguzzo/keyboard-app
[INFO] finished frobbing nicguzzo/keyboard-app
[INFO] frobbed toml for nicguzzo/keyboard-app written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nicguzzo/keyboard-app/Cargo.toml
[INFO] crate nicguzzo/keyboard-app 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 nicguzzo/keyboard-app 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-7/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/nicguzzo/keyboard-app:/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] d01d9f6b53b7e4bf1f7af722327df91c1ca25a413fbaf928bbd3691e0220673a
[INFO] running `"docker" "start" "-a" "d01d9f6b53b7e4bf1f7af722327df91c1ca25a413fbaf928bbd3691e0220673a"`
[INFO] [stderr]    Compiling openssl v0.9.15
[INFO] [stderr]    Compiling openssl-sys v0.9.15
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling ioctl-rs v0.1.5
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling net2 v0.2.30
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling bytes v0.4.4
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling url v1.5.1
[INFO] [stderr]    Compiling mio v0.6.10
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling tokio-io v0.1.2
[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-1.5.1/src/form_urlencoded.rs:251:40
[INFO] [stderr]     |
[INFO] [stderr] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 251 |     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 hyper v0.10.12
[INFO] [stderr]    Compiling tokio-core v0.1.9
[INFO] [stderr]    Compiling native-tls v0.1.4
[INFO] [stderr]    Compiling tokio-tls v0.1.3
[INFO] [stderr]    Compiling websocket v0.20.2
[INFO] [stderr]    Compiling keyboard-app v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::env;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.38s
[INFO] running `"docker" "inspect" "d01d9f6b53b7e4bf1f7af722327df91c1ca25a413fbaf928bbd3691e0220673a"`
[INFO] running `"docker" "rm" "-f" "d01d9f6b53b7e4bf1f7af722327df91c1ca25a413fbaf928bbd3691e0220673a"`
[INFO] [stdout] d01d9f6b53b7e4bf1f7af722327df91c1ca25a413fbaf928bbd3691e0220673a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/nicguzzo/keyboard-app:/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] fc5f127e085f74786b4ebd07e9c13b4582b511d8afff863f7a3c5718c5a04b83
[INFO] running `"docker" "start" "-a" "fc5f127e085f74786b4ebd07e9c13b4582b511d8afff863f7a3c5718c5a04b83"`
[INFO] [stderr]    Compiling keyboard-app v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::env;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "fc5f127e085f74786b4ebd07e9c13b4582b511d8afff863f7a3c5718c5a04b83"`
[INFO] running `"docker" "rm" "-f" "fc5f127e085f74786b4ebd07e9c13b4582b511d8afff863f7a3c5718c5a04b83"`
[INFO] [stdout] fc5f127e085f74786b4ebd07e9c13b4582b511d8afff863f7a3c5718c5a04b83
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/nicguzzo/keyboard-app:/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] ad517cad83fc1b0f77bd6a494fbf60c9f60bc1daf29ccf1a93a90fd816966d23
[INFO] running `"docker" "start" "-a" "ad517cad83fc1b0f77bd6a494fbf60c9f60bc1daf29ccf1a93a90fd816966d23"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/keyboard_app-f2ca7986a24e3618
[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" "ad517cad83fc1b0f77bd6a494fbf60c9f60bc1daf29ccf1a93a90fd816966d23"`
[INFO] running `"docker" "rm" "-f" "ad517cad83fc1b0f77bd6a494fbf60c9f60bc1daf29ccf1a93a90fd816966d23"`
[INFO] [stdout] ad517cad83fc1b0f77bd6a494fbf60c9f60bc1daf29ccf1a93a90fd816966d23