[INFO] updating cached repository camphor-/sculd
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/camphor-/sculd
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/camphor-/sculd" "work/ex/beta-1.38-1/sources/1.37.0/gh/camphor-/sculd"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/camphor-/sculd'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/camphor-/sculd" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/camphor-/sculd"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/camphor-/sculd'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 69c059e5524e793aee88044ed670d9b87025f9ca
[INFO] sha for GitHub repo camphor-/sculd: 69c059e5524e793aee88044ed670d9b87025f9ca
[INFO] validating manifest of camphor-/sculd 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 camphor-/sculd 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 camphor-/sculd
[INFO] finished frobbing camphor-/sculd
[INFO] frobbed toml for camphor-/sculd written to work/ex/beta-1.38-1/sources/1.37.0/gh/camphor-/sculd/Cargo.toml
[INFO] started frobbing camphor-/sculd
[INFO] finished frobbing camphor-/sculd
[INFO] frobbed toml for camphor-/sculd written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/camphor-/sculd/Cargo.toml
[INFO] crate camphor-/sculd 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 camphor-/sculd 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/camphor-/sculd:/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] e6484e66843fda38768ffefbf0bcec60a29b15e39506ef3de0d643f19ec5964a
[INFO] running `"docker" "start" "-a" "e6484e66843fda38768ffefbf0bcec60a29b15e39506ef3de0d643f19ec5964a"`
[INFO] [stderr]    Compiling version_check v0.1.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.3
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling libflate v0.1.21
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]    Compiling openssl v0.10.19
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling uuid v0.7.2
[INFO] [stderr]    Compiling tokio-threadpool v0.1.12
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.3.0
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling idna v0.1.2
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling chrono v0.3.1
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.17
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling mime v0.3.13
[INFO] [stderr]    Compiling h2 v0.1.17
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling url v1.4.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[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-1.4.1/src/form_urlencoded.rs:248:40
[INFO] [stderr]     |
[INFO] [stderr] 246 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 247 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 248 |     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 v0.5.4
[INFO] [stderr]    Compiling hyper v0.12.25
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling reqwest v0.9.11
[INFO] [stderr]    Compiling sculd v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `"docker" "inspect" "e6484e66843fda38768ffefbf0bcec60a29b15e39506ef3de0d643f19ec5964a"`
[INFO] running `"docker" "rm" "-f" "e6484e66843fda38768ffefbf0bcec60a29b15e39506ef3de0d643f19ec5964a"`
[INFO] [stdout] e6484e66843fda38768ffefbf0bcec60a29b15e39506ef3de0d643f19ec5964a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/camphor-/sculd:/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] e49d2338e3c5facc7e4f61401d90f81b1e487b648308c7ba3af92502ab41184b
[INFO] running `"docker" "start" "-a" "e49d2338e3c5facc7e4f61401d90f81b1e487b648308c7ba3af92502ab41184b"`
[INFO] [stderr]    Compiling sculd v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `"docker" "inspect" "e49d2338e3c5facc7e4f61401d90f81b1e487b648308c7ba3af92502ab41184b"`
[INFO] running `"docker" "rm" "-f" "e49d2338e3c5facc7e4f61401d90f81b1e487b648308c7ba3af92502ab41184b"`
[INFO] [stdout] e49d2338e3c5facc7e4f61401d90f81b1e487b648308c7ba3af92502ab41184b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/camphor-/sculd:/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] 78de57c817e6c5dc86e37a76da46b1816d5dcb645d10958e0a8e67f76df1dedb
[INFO] running `"docker" "start" "-a" "78de57c817e6c5dc86e37a76da46b1816d5dcb645d10958e0a8e67f76df1dedb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sculd-b3674453ed9a7c1e
[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" "78de57c817e6c5dc86e37a76da46b1816d5dcb645d10958e0a8e67f76df1dedb"`
[INFO] running `"docker" "rm" "-f" "78de57c817e6c5dc86e37a76da46b1816d5dcb645d10958e0a8e67f76df1dedb"`
[INFO] [stdout] 78de57c817e6c5dc86e37a76da46b1816d5dcb645d10958e0a8e67f76df1dedb