[INFO] updating cached repository pie-flavor/opm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pie-flavor/opm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pie-flavor/opm" "work/ex/beta-1.38-1/sources/1.37.0/gh/pie-flavor/opm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pie-flavor/opm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pie-flavor/opm" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pie-flavor/opm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pie-flavor/opm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8f712caa852b3fbaf2fbdf4d867a8e2d64f30f64
[INFO] sha for GitHub repo pie-flavor/opm: 8f712caa852b3fbaf2fbdf4d867a8e2d64f30f64
[INFO] validating manifest of pie-flavor/opm 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 pie-flavor/opm 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 pie-flavor/opm
[INFO] finished frobbing pie-flavor/opm
[INFO] frobbed toml for pie-flavor/opm written to work/ex/beta-1.38-1/sources/1.37.0/gh/pie-flavor/opm/Cargo.toml
[INFO] started frobbing pie-flavor/opm
[INFO] finished frobbing pie-flavor/opm
[INFO] frobbed toml for pie-flavor/opm written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pie-flavor/opm/Cargo.toml
[INFO] crate pie-flavor/opm 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 pie-flavor/opm 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pie-flavor/opm:/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] a0fede24e9cab81fb0f2f68b33511ff90185dd207b645dec2930d46c4846eb28
[INFO] running `"docker" "start" "-a" "a0fede24e9cab81fb0f2f68b33511ff90185dd207b645dec2930d46c4846eb28"`
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]    Compiling serde v0.9.14
[INFO] [stderr]    Compiling vec_map v0.7.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.23
[INFO] [stderr]    Compiling json v0.11.6
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling unicode-bidi v0.2.5
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling num_cpus v1.3.0
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling humantime v1.0.0
[INFO] [stderr]    Compiling mime v0.2.3
[INFO] [stderr]    Compiling hyper v0.10.8
[INFO] [stderr]    Compiling ordered-float v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling clap v2.23.2
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling idna v0.1.1
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]    Compiling chrono v0.3.0
[INFO] [stderr]    Compiling flate2 v0.2.19
[INFO] [stderr]    Compiling url v1.4.0
[INFO] [stderr]    Compiling serde_derive v0.9.14
[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-value v0.4.1
[INFO] [stderr]    Compiling serde_yaml v0.6.2
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling log4rs v0.6.3
[INFO] [stderr]    Compiling opm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `"docker" "inspect" "a0fede24e9cab81fb0f2f68b33511ff90185dd207b645dec2930d46c4846eb28"`
[INFO] running `"docker" "rm" "-f" "a0fede24e9cab81fb0f2f68b33511ff90185dd207b645dec2930d46c4846eb28"`
[INFO] [stdout] a0fede24e9cab81fb0f2f68b33511ff90185dd207b645dec2930d46c4846eb28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pie-flavor/opm:/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] 3c45c1c121f39d1696460160c2be31f16bbd4bce7328dd6f88b8e67e4b14c1fe
[INFO] running `"docker" "start" "-a" "3c45c1c121f39d1696460160c2be31f16bbd4bce7328dd6f88b8e67e4b14c1fe"`
[INFO] [stderr]    Compiling opm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "3c45c1c121f39d1696460160c2be31f16bbd4bce7328dd6f88b8e67e4b14c1fe"`
[INFO] running `"docker" "rm" "-f" "3c45c1c121f39d1696460160c2be31f16bbd4bce7328dd6f88b8e67e4b14c1fe"`
[INFO] [stdout] 3c45c1c121f39d1696460160c2be31f16bbd4bce7328dd6f88b8e67e4b14c1fe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pie-flavor/opm:/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] 60e67a7045905ca5cf5b0f6094337afc643d084b8d575c569cadd47ed79c4306
[INFO] running `"docker" "start" "-a" "60e67a7045905ca5cf5b0f6094337afc643d084b8d575c569cadd47ed79c4306"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/opm-d197e7cf000712db
[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" "60e67a7045905ca5cf5b0f6094337afc643d084b8d575c569cadd47ed79c4306"`
[INFO] running `"docker" "rm" "-f" "60e67a7045905ca5cf5b0f6094337afc643d084b8d575c569cadd47ed79c4306"`
[INFO] [stdout] 60e67a7045905ca5cf5b0f6094337afc643d084b8d575c569cadd47ed79c4306