[INFO] updating cached repository kennethlove/temperature_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kennethlove/temperature_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kennethlove/temperature_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/kennethlove/temperature_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/kennethlove/temperature_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kennethlove/temperature_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kennethlove/temperature_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kennethlove/temperature_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 23f7124498c11e528c3c67a19c44233237eb90d9
[INFO] sha for GitHub repo kennethlove/temperature_rust: 23f7124498c11e528c3c67a19c44233237eb90d9
[INFO] validating manifest of kennethlove/temperature_rust 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 kennethlove/temperature_rust 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 kennethlove/temperature_rust
[INFO] finished frobbing kennethlove/temperature_rust
[INFO] frobbed toml for kennethlove/temperature_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/kennethlove/temperature_rust/Cargo.toml
[INFO] started frobbing kennethlove/temperature_rust
[INFO] finished frobbing kennethlove/temperature_rust
[INFO] frobbed toml for kennethlove/temperature_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/kennethlove/temperature_rust/Cargo.toml
[INFO] crate kennethlove/temperature_rust 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 kennethlove/temperature_rust 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-3/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/kennethlove/temperature_rust:/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] a82d0fbf9fb18ea164e4c7b38a59ae69829620a797c81aaa08d4f208d4cf3521
[INFO] running `"docker" "start" "-a" "a82d0fbf9fb18ea164e4c7b38a59ae69829620a797c81aaa08d4f208d4cf3521"`
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling openssl v0.9.11
[INFO] [stderr]    Compiling httparse v1.2.2
[INFO] [stderr]    Compiling openssl-sys v0.9.11
[INFO] [stderr]    Compiling unicode-bidi v0.2.5
[INFO] [stderr]    Compiling num_cpus v1.4.0
[INFO] [stderr]    Compiling mime v0.2.3
[INFO] [stderr]    Compiling libflate v0.1.5
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]    Compiling hyper v0.10.9
[INFO] [stderr]    Compiling serde_derive_internals v0.15.0
[INFO] [stderr]    Compiling idna v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.2
[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_urlencoded v0.4.2
[INFO] [stderr]    Compiling native-tls v0.1.2
[INFO] [stderr]    Compiling hyper-native-tls v0.2.2
[INFO] [stderr]    Compiling reqwest v0.5.1
[INFO] [stderr]    Compiling temperature v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.95s
[INFO] running `"docker" "inspect" "a82d0fbf9fb18ea164e4c7b38a59ae69829620a797c81aaa08d4f208d4cf3521"`
[INFO] running `"docker" "rm" "-f" "a82d0fbf9fb18ea164e4c7b38a59ae69829620a797c81aaa08d4f208d4cf3521"`
[INFO] [stdout] a82d0fbf9fb18ea164e4c7b38a59ae69829620a797c81aaa08d4f208d4cf3521
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/kennethlove/temperature_rust:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] b7ddff847b3ef3f7a6495e5c317f0b0db3dd867de4ab240f3ac5a2389b38eb95
[INFO] running `"docker" "start" "-a" "b7ddff847b3ef3f7a6495e5c317f0b0db3dd867de4ab240f3ac5a2389b38eb95"`
[INFO] [stderr]    Compiling temperature v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "b7ddff847b3ef3f7a6495e5c317f0b0db3dd867de4ab240f3ac5a2389b38eb95"`
[INFO] running `"docker" "rm" "-f" "b7ddff847b3ef3f7a6495e5c317f0b0db3dd867de4ab240f3ac5a2389b38eb95"`
[INFO] [stdout] b7ddff847b3ef3f7a6495e5c317f0b0db3dd867de4ab240f3ac5a2389b38eb95
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/kennethlove/temperature_rust:/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" "test" "--frozen"`
[INFO] [stdout] 3444ac3f009de17c2595534314d234472042e3f02b0d1d6e211f49e4e0515eeb
[INFO] running `"docker" "start" "-a" "3444ac3f009de17c2595534314d234472042e3f02b0d1d6e211f49e4e0515eeb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/temperature-60fa3c4c14dbf32d
[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" "3444ac3f009de17c2595534314d234472042e3f02b0d1d6e211f49e4e0515eeb"`
[INFO] running `"docker" "rm" "-f" "3444ac3f009de17c2595534314d234472042e3f02b0d1d6e211f49e4e0515eeb"`
[INFO] [stdout] 3444ac3f009de17c2595534314d234472042e3f02b0d1d6e211f49e4e0515eeb