[INFO] updating cached repository mdaffin/rover-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mdaffin/rover-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mdaffin/rover-test" "work/ex/beta-1.38-1/sources/1.37.0/gh/mdaffin/rover-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mdaffin/rover-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mdaffin/rover-test" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mdaffin/rover-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mdaffin/rover-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a218aa594b8122ba6d1407a856c847392bcc503f
[INFO] sha for GitHub repo mdaffin/rover-test: a218aa594b8122ba6d1407a856c847392bcc503f
[INFO] validating manifest of mdaffin/rover-test 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 mdaffin/rover-test 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 mdaffin/rover-test
[INFO] finished frobbing mdaffin/rover-test
[INFO] frobbed toml for mdaffin/rover-test written to work/ex/beta-1.38-1/sources/1.37.0/gh/mdaffin/rover-test/Cargo.toml
[INFO] started frobbing mdaffin/rover-test
[INFO] finished frobbing mdaffin/rover-test
[INFO] frobbed toml for mdaffin/rover-test written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mdaffin/rover-test/Cargo.toml
[INFO] crate mdaffin/rover-test 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mdaffin/rover-test 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mdaffin/rover-test:/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] 5f1692868a5f6a521db3a28618f7e50f48a8b3c606b7cf722a3fcea49a168734
[INFO] running `"docker" "start" "-a" "5f1692868a5f6a521db3a28618f7e50f48a8b3c606b7cf722a3fcea49a168734"`
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling hyper v0.10.5
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling chan v0.1.19
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling chan-signal v0.2.0
[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 iron v0.5.1
[INFO] [stderr]    Compiling router v0.5.1
[INFO] [stderr]    Compiling rover-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `get_speed`
[INFO] [stderr]   --> src/rover.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn get_speed(&self) -> Result<(i8, i8), String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_speed`
[INFO] [stderr]   --> src/main.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn get_speed(_: &mut Request, rover: &Rover) -> IronResult<Response> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.36s
[INFO] running `"docker" "inspect" "5f1692868a5f6a521db3a28618f7e50f48a8b3c606b7cf722a3fcea49a168734"`
[INFO] running `"docker" "rm" "-f" "5f1692868a5f6a521db3a28618f7e50f48a8b3c606b7cf722a3fcea49a168734"`
[INFO] [stdout] 5f1692868a5f6a521db3a28618f7e50f48a8b3c606b7cf722a3fcea49a168734
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mdaffin/rover-test:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9d02e8ab4aa0c6b268f88450391127e61cba7d8356d06d5ba403e3bdfd5bebd8
[INFO] running `"docker" "start" "-a" "9d02e8ab4aa0c6b268f88450391127e61cba7d8356d06d5ba403e3bdfd5bebd8"`
[INFO] [stderr]    Compiling rover-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "9d02e8ab4aa0c6b268f88450391127e61cba7d8356d06d5ba403e3bdfd5bebd8"`
[INFO] running `"docker" "rm" "-f" "9d02e8ab4aa0c6b268f88450391127e61cba7d8356d06d5ba403e3bdfd5bebd8"`
[INFO] [stdout] 9d02e8ab4aa0c6b268f88450391127e61cba7d8356d06d5ba403e3bdfd5bebd8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mdaffin/rover-test:/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" "test" "--frozen"`
[INFO] [stdout] f6ce50508b1eda6b315f70d7ca9d02f5c2bb6b3d4ca0fab04c65ccab0b4102c8
[INFO] running `"docker" "start" "-a" "f6ce50508b1eda6b315f70d7ca9d02f5c2bb6b3d4ca0fab04c65ccab0b4102c8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rover_test-ea0e5930502b50b0
[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" "f6ce50508b1eda6b315f70d7ca9d02f5c2bb6b3d4ca0fab04c65ccab0b4102c8"`
[INFO] running `"docker" "rm" "-f" "f6ce50508b1eda6b315f70d7ca9d02f5c2bb6b3d4ca0fab04c65ccab0b4102c8"`
[INFO] [stdout] f6ce50508b1eda6b315f70d7ca9d02f5c2bb6b3d4ca0fab04c65ccab0b4102c8