[INFO] updating cached repository walfie/petronel-gbfrf
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/walfie/petronel-gbfrf
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/walfie/petronel-gbfrf" "work/ex/beta-1.37-6/sources/1.36.0/gh/walfie/petronel-gbfrf"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/walfie/petronel-gbfrf'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/walfie/petronel-gbfrf" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/walfie/petronel-gbfrf"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/walfie/petronel-gbfrf'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f642d4df111307791d1beb5b757e7a89c5941380
[INFO] sha for GitHub repo walfie/petronel-gbfrf: f642d4df111307791d1beb5b757e7a89c5941380
[INFO] validating manifest of walfie/petronel-gbfrf on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of walfie/petronel-gbfrf on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing walfie/petronel-gbfrf
[INFO] finished frobbing walfie/petronel-gbfrf
[INFO] frobbed toml for walfie/petronel-gbfrf written to work/ex/beta-1.37-6/sources/1.36.0/gh/walfie/petronel-gbfrf/Cargo.toml
[INFO] started frobbing walfie/petronel-gbfrf
[INFO] finished frobbing walfie/petronel-gbfrf
[INFO] frobbed toml for walfie/petronel-gbfrf written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/walfie/petronel-gbfrf/Cargo.toml
[INFO] crate walfie/petronel-gbfrf already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing walfie/petronel-gbfrf against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/walfie/petronel-gbfrf:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 9e023375ce0f02810d5a79e41a69deb5c4924e47c08b537053efae5c5b02dce5
[INFO] running `"docker" "start" "-a" "9e023375ce0f02810d5a79e41a69deb5c4924e47c08b537053efae5c5b02dce5"`
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling libc v0.2.30
[INFO] [stderr]    Compiling futures v0.1.15
[INFO] [stderr]    Compiling openssl v0.9.17
[INFO] [stderr]    Compiling podio v0.1.5
[INFO] [stderr]    Compiling foreign-types v0.2.0
[INFO] [stderr]    Compiling openssl-probe v0.1.1
[INFO] [stderr]    Compiling serde v1.0.14
[INFO] [stderr]    Compiling ordermap v0.2.12
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.0
[INFO] [stderr]    Compiling redis v0.8.0
[INFO] [stderr]    Compiling netbuf v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.12
[INFO] [stderr]    Compiling openssl-sys v0.9.17
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]    Compiling libz-sys v1.0.16
[INFO] [stderr]    Compiling bzip2-sys v0.1.5
[INFO] [stderr]    Compiling curl-sys v0.3.14
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling itertools v0.6.2
[INFO] [stderr]    Compiling deflate v0.7.16
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]    Compiling petgraph v0.4.6
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling socket2 v0.2.2
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling bytes v0.4.5
[INFO] [stderr]    Compiling futures-cpupool v0.1.6
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling mio v0.6.10
[INFO] [stderr]    Compiling msdos_time v0.1.5
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling url v1.5.1
[INFO] [stderr]    Compiling png v0.8.0
[INFO] [stderr]    Compiling regex v0.2.2
[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-1.5.1/src/form_urlencoded.rs:251:40
[INFO] [stderr]     |
[INFO] [stderr] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 251 |     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] 
[INFO] [stderr]    Compiling tokio-io v0.1.3
[INFO] [stderr]    Compiling prost v0.2.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.0
[INFO] [stderr]    Compiling flate2 v0.2.19
[INFO] [stderr]    Compiling bzip2 v0.3.2
[INFO] [stderr]    Compiling serde_json v1.0.3
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling rayon v0.7.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling mime v0.3.3
[INFO] [stderr]    Compiling tokio-core v0.1.9
[INFO] [stderr]    Compiling tk-bufstream v0.3.0
[INFO] [stderr]    Compiling zip v0.2.6
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling ring v0.9.7
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling twitter-stream-message v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.3
[INFO] [stderr]    Compiling native-tls v0.1.4
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tk-sendfile v0.4.0
[INFO] [stderr]    Compiling tk-listen v0.1.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling tokio-tls v0.1.3
[INFO] [stderr]    Compiling tk-http v0.3.1
[INFO] [stderr]    Compiling image v0.14.0
[INFO] [stderr]    Compiling prost-derive v0.2.0
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling hyper v0.11.2
[INFO] [stderr]    Compiling oauthcli v1.0.6
[INFO] [stderr]    Compiling prost-types v0.2.0
[INFO] [stderr]    Compiling hyper-tls v0.1.2
[INFO] [stderr]    Compiling twitter-stream v0.5.3
[INFO] [stderr]    Compiling petronel v0.1.0 (https://github.com/walfie/petronel.git?rev=cd40352b845a095fef7a3836b5e7c96b751f1373#cd40352b)
[INFO] [stderr]    Compiling curl v0.4.8
[INFO] [stderr]    Compiling prost-build v0.2.0
[INFO] [stderr] error: failed to run custom build command for `prost-build v0.2.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/prost-build-fd2415ecc8b5cb96/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'failed to perform transfer: Error { description: "Couldn\'t resolve host name", code: 6, extra: Some("Couldn\'t resolve host \'github.com\'") }', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55d80e26cfa3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55d80e26833b - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55d80e26bc26 - std::panicking::default_hook::{{closure}}::he20974adbefcc046
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55d80e26b9b9 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55d80e26c32f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55d80e26beb1 - std::panicking::continue_panic_fmt::ha6d6ae144369025b
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x55d80e26bd95 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x55d80e27dfbc - core::panicking::panic_fmt::hc4f83bfed80aeabd
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x55d80e1f8d27 - core::result::unwrap_failed::he22ee80ce5bf262c
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x55d80e1f96c0 - core::result::Result<T,E>::expect::h5d450d5e34053ee5
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:827
[INFO] [stderr]   10:     0x55d80e1b44ee - build_script_build::download_protoc::he7b1f6ada4f1796e
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-build-0.2.0/build.rs:87
[INFO] [stderr]   11:     0x55d80e1b362e - build_script_build::main::had7243dc38196cf6
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-build-0.2.0/build.rs:33
[INFO] [stderr]   12:     0x55d80e1b526f - std::rt::lang_start::{{closure}}::h1f258a652f9ddc8a
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x55d80e26bd32 - std::panicking::try::do_call::hc3d8373a0b215f51
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   14:     0x55d80e26efb9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   15:     0x55d80e26c8fc - std::rt::lang_start_internal::he5218c8b95d395f2
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x55d80e1b5248 - std::rt::lang_start::h51dc2877b84dbdee
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x55d80e1b4f79 - main
[INFO] [stderr]   18:     0x7f042ce122e0 - __libc_start_main
[INFO] [stderr]   19:     0x55d80e19a5a9 - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "9e023375ce0f02810d5a79e41a69deb5c4924e47c08b537053efae5c5b02dce5"`
[INFO] running `"docker" "rm" "-f" "9e023375ce0f02810d5a79e41a69deb5c4924e47c08b537053efae5c5b02dce5"`
[INFO] [stdout] 9e023375ce0f02810d5a79e41a69deb5c4924e47c08b537053efae5c5b02dce5