[INFO] fetching crate tch 0.1.1...
[INFO] extracting crate tch 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/tch/0.1.1
[INFO] extracting crate tch 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tch/0.1.1
[INFO] validating manifest of tch-0.1.1 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 tch-0.1.1 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 tch-0.1.1
[INFO] removed 1 missing examples
[INFO] finished frobbing tch-0.1.1
[INFO] frobbed toml for tch-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tch/0.1.1/Cargo.toml
[INFO] started frobbing tch-0.1.1
[INFO] removed 1 missing examples
[INFO] finished frobbing tch-0.1.1
[INFO] frobbed toml for tch-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tch/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded torch-sys v0.1.1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tch-0.1.1 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tch/0.1.1:/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] e6ac8022e677bc1166ce4cfc9bb88d72796a80c8f9d1503ed8bdc00cb2e1f7ad
[INFO] running `"docker" "start" "-a" "e6ac8022e677bc1166ce4cfc9bb88d72796a80c8f9d1503ed8bdc00cb2e1f7ad"`
[INFO] [stderr]    Compiling torch-sys v0.1.1
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/torch-sys-773625b96eacd074/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { description: "Couldn\'t resolve host name", code: 6, extra: None }
[INFO] [stderr] 
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0: failure::backtrace::internal::InternalBacktrace::new::hfeab119dddb60f1c (0x561db7c21813)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stderr]    1: failure::backtrace::Backtrace::new::hc4037e0989566921 (0x561db7c215be)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stderr]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hd49f08501b8a3ef8 (0x561db7ac0b66)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/error_impl.rs:19
[INFO] [stderr]    3: <failure::error::Error as core::convert::From<F>>::from::h0c51c1a41d077abc (0x561db7ab2ed8)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/mod.rs:36
[INFO] [stderr]    4: build_script_build::download::h265b17f3df9a34bf (0x561db7ab50c5)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.1/build.rs:30
[INFO] [stderr]    5: build_script_build::prepare_libtorch_dir::hf37b2cfd2fe2f3e4 (0x561db7ab7316)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.1/build.rs:106
[INFO] [stderr]    6: build_script_build::main::h0dc65e9f2327e5bc (0x561db7ab7ef1)
[INFO] [stderr]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.1/build.rs:143
[INFO] [stderr]    7: std::rt::lang_start::{{closure}}::hf33040feb4c98f1e (0x561db7ab3c10)
[INFO] [stderr]              at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]    8: std::rt::lang_start_internal::{{closure}}::h3a7adfabc7c47a5f (0x561db7c74463)
[INFO] [stderr]              at src/libstd/rt.rs:49
[INFO] [stderr]       std::panicking::try::do_call::hc3d8373a0b215f51
[INFO] [stderr]              at src/libstd/panicking.rs:293
[INFO] [stderr]    9: __rust_maybe_catch_panic (0x561db7c7d9da)
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   10: std::panicking::try::hfb06c315006b63ac (0x561db7c7502d)
[INFO] [stderr]              at src/libstd/panicking.rs:272
[INFO] [stderr]       std::panic::catch_unwind::h6cd8469da971482b
[INFO] [stderr]              at src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal::he5218c8b95d395f2
[INFO] [stderr]              at src/libstd/rt.rs:48
[INFO] [stderr]   11: std::rt::lang_start::hbac175a8805c7468 (0x561db7ab3be9)
[INFO] [stderr]              at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   12: main (0x561db7ab820a)
[INFO] [stderr]   13: __libc_start_main (0x7f95ec3012e1)
[INFO] [stderr]   14: _start (0x561db7aa3b5a)
[INFO] [stderr]   15: <unknown> (0x0)', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561db7c75733 - 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:     0x561db7c708db - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x561db7c74356 - 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:     0x561db7c740e9 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x561db7c74a5f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x561db7c745e1 - std::panicking::continue_panic_fmt::ha6d6ae144369025b
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x561db7c744c5 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x561db7c8ce7c - core::panicking::panic_fmt::hc4f83bfed80aeabd
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x561db7ac1d14 - core::result::unwrap_failed::h2a08e6b154b9dec5
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x561db7ac2bcf - core::result::Result<T,E>::unwrap::hcc08c9e7cfc9316b
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x561db7ab7342 - build_script_build::prepare_libtorch_dir::hf37b2cfd2fe2f3e4
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.1/build.rs:106
[INFO] [stderr]   11:     0x561db7ab7ef0 - build_script_build::main::h0dc65e9f2327e5bc
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.1/build.rs:143
[INFO] [stderr]   12:     0x561db7ab3c0f - std::rt::lang_start::{{closure}}::hf33040feb4c98f1e
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x561db7c74462 - 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:     0x561db7c7d9d9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   15:     0x561db7c7502c - 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:     0x561db7ab3be8 - std::rt::lang_start::hbac175a8805c7468
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x561db7ab8209 - main
[INFO] [stderr]   18:     0x7f95ec3012e0 - __libc_start_main
[INFO] [stderr]   19:     0x561db7aa3b59 - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "e6ac8022e677bc1166ce4cfc9bb88d72796a80c8f9d1503ed8bdc00cb2e1f7ad"`
[INFO] running `"docker" "rm" "-f" "e6ac8022e677bc1166ce4cfc9bb88d72796a80c8f9d1503ed8bdc00cb2e1f7ad"`
[INFO] [stdout] e6ac8022e677bc1166ce4cfc9bb88d72796a80c8f9d1503ed8bdc00cb2e1f7ad