[INFO] updating cached repository edwinvdgraaf/given-content-engine
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/edwinvdgraaf/given-content-engine
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/edwinvdgraaf/given-content-engine" "work/ex/beta-1.38-1/sources/1.37.0/gh/edwinvdgraaf/given-content-engine"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/edwinvdgraaf/given-content-engine'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/edwinvdgraaf/given-content-engine" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/edwinvdgraaf/given-content-engine"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/edwinvdgraaf/given-content-engine'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d5d61caab7840e2a3adcab6399a4df59df40d723
[INFO] sha for GitHub repo edwinvdgraaf/given-content-engine: d5d61caab7840e2a3adcab6399a4df59df40d723
[INFO] validating manifest of edwinvdgraaf/given-content-engine 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 edwinvdgraaf/given-content-engine 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 edwinvdgraaf/given-content-engine
[INFO] finished frobbing edwinvdgraaf/given-content-engine
[INFO] frobbed toml for edwinvdgraaf/given-content-engine written to work/ex/beta-1.38-1/sources/1.37.0/gh/edwinvdgraaf/given-content-engine/Cargo.toml
[INFO] started frobbing edwinvdgraaf/given-content-engine
[INFO] finished frobbing edwinvdgraaf/given-content-engine
[INFO] frobbed toml for edwinvdgraaf/given-content-engine written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/edwinvdgraaf/given-content-engine/Cargo.toml
[INFO] crate edwinvdgraaf/given-content-engine 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] [stderr]     Blocking waiting for file lock on package cache
[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 edwinvdgraaf/given-content-engine 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-1/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/edwinvdgraaf/given-content-engine:/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] a3dfc70b7d7959c17fe93ea6fd185ec6d96664acfb1aa47acaefb1a1b8c52a7b
[INFO] running `"docker" "start" "-a" "a3dfc70b7d7959c17fe93ea6fd185ec6d96664acfb1aa47acaefb1a1b8c52a7b"`
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.3.15
[INFO] [stderr]    Compiling url v1.6.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.6
[INFO] [stderr]    Compiling libgit2-sys v0.6.17
[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-1.6.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     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 git2 v0.6.9
[INFO] [stderr]    Compiling given_content_engine v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 37s
[INFO] running `"docker" "inspect" "a3dfc70b7d7959c17fe93ea6fd185ec6d96664acfb1aa47acaefb1a1b8c52a7b"`
[INFO] running `"docker" "rm" "-f" "a3dfc70b7d7959c17fe93ea6fd185ec6d96664acfb1aa47acaefb1a1b8c52a7b"`
[INFO] [stdout] a3dfc70b7d7959c17fe93ea6fd185ec6d96664acfb1aa47acaefb1a1b8c52a7b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/edwinvdgraaf/given-content-engine:/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] 3333a83e5e748f24646f41aeeb62b6eeb895dcedddd49f9738ca560a5278e495
[INFO] running `"docker" "start" "-a" "3333a83e5e748f24646f41aeeb62b6eeb895dcedddd49f9738ca560a5278e495"`
[INFO] [stderr]    Compiling given_content_engine v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "3333a83e5e748f24646f41aeeb62b6eeb895dcedddd49f9738ca560a5278e495"`
[INFO] running `"docker" "rm" "-f" "3333a83e5e748f24646f41aeeb62b6eeb895dcedddd49f9738ca560a5278e495"`
[INFO] [stdout] 3333a83e5e748f24646f41aeeb62b6eeb895dcedddd49f9738ca560a5278e495
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/edwinvdgraaf/given-content-engine:/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] bf7514fcb68d1563175c4f72c77d782f9be0da956acd497223d6f92789d50d28
[INFO] running `"docker" "start" "-a" "bf7514fcb68d1563175c4f72c77d782f9be0da956acd497223d6f92789d50d28"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/given_content_engine-58e00720e0a9eb1d
[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" "bf7514fcb68d1563175c4f72c77d782f9be0da956acd497223d6f92789d50d28"`
[INFO] running `"docker" "rm" "-f" "bf7514fcb68d1563175c4f72c77d782f9be0da956acd497223d6f92789d50d28"`
[INFO] [stdout] bf7514fcb68d1563175c4f72c77d782f9be0da956acd497223d6f92789d50d28