[INFO] updating cached repository vegapit/tchtut
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vegapit/tchtut
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vegapit/tchtut" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/vegapit/tchtut"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/vegapit/tchtut'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vegapit/tchtut" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/vegapit/tchtut"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/vegapit/tchtut'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f9e8bee57950804fa06e0d8bf08c8bf2c44134a7
[INFO] sha for GitHub repo vegapit/tchtut: f9e8bee57950804fa06e0d8bf08c8bf2c44134a7
[INFO] validating manifest of vegapit/tchtut on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vegapit/tchtut on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vegapit/tchtut
[INFO] removed 0 missing examples
[INFO] finished frobbing vegapit/tchtut
[INFO] frobbed toml for vegapit/tchtut written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/vegapit/tchtut/Cargo.toml
[INFO] started frobbing vegapit/tchtut
[INFO] removed 0 missing examples
[INFO] finished frobbing vegapit/tchtut
[INFO] frobbed toml for vegapit/tchtut written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/vegapit/tchtut/Cargo.toml
[INFO] crate vegapit/tchtut already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vegapit/tchtut against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/vegapit/tchtut:/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=forbid" "-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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4e29168f77fe5e42890b47a578c90805814eebaa7134d0f445d851eae4864628
[INFO] running `"docker" "start" "-a" "4e29168f77fe5e42890b47a578c90805814eebaa7134d0f445d851eae4864628"`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling curl-sys v0.4.20
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling socket2 v0.3.9
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking libflate v0.1.25
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.32
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]    Compiling zip v0.5.2
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling torch-sys v0.1.1 (https://github.com/LaurentMazare/tch-rs#2fe00ace)
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.1 (https://github.com/LaurentMazare/tch-rs#2fe00ace)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/torch-sys-06f454c13ccbad7d/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::h96c042ea34ca6953 (0x561b4e9c1d9f)
[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::h84ad223f68531d99 (0x561b4e9c170e)
[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::h07a3e926213b3223 (0x561b4e86203c)
[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::h66705a828d2b7cad (0x561b4e85f708)
[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::hc45823c7277b4672 (0x561b4e856087)
[INFO] [stderr]              at /opt/crater/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:30
[INFO] [stderr]    5: build_script_build::prepare_libtorch_dir::he5a1fe5560374d26 (0x561b4e8581ea)
[INFO] [stderr]              at /opt/crater/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:106
[INFO] [stderr]    6: build_script_build::main::h2112f1a5e899949c (0x561b4e858d61)
[INFO] [stderr]              at /opt/crater/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:143
[INFO] [stderr]    7: std::rt::lang_start::{{closure}}::h97582275606a01f1 (0x561b4e8602a0)
[INFO] [stderr]              at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64
[INFO] [stderr]    8: std::rt::lang_start_internal::{{closure}}::h9ea1b9f2bce8ffef (0x561b4ea10dc3)
[INFO] [stderr]              at src/libstd/rt.rs:49
[INFO] [stderr]       std::panicking::try::do_call::hfbd18154d6e81e0d
[INFO] [stderr]              at src/libstd/panicking.rs:296
[INFO] [stderr]    9: __rust_maybe_catch_panic (0x561b4ea19eaa)
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   10: std::panicking::try::h9cb4b237371abf81 (0x561b4ea1198d)
[INFO] [stderr]              at src/libstd/panicking.rs:275
[INFO] [stderr]       std::panic::catch_unwind::hd403853a39b4e3c9
[INFO] [stderr]              at src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal::h7e5e162b169a1510
[INFO] [stderr]              at src/libstd/rt.rs:48
[INFO] [stderr]   11: std::rt::lang_start::h0b8b6d0ec8406742 (0x561b4e860279)
[INFO] [stderr]              at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64
[INFO] [stderr]   12: main (0x561b4e85906a)
[INFO] [stderr]   13: __libc_start_main (0x7f144cd762e1)
[INFO] [stderr]   14: _start (0x561b4e84521a)
[INFO] [stderr]   15: <unknown> (0x0)', src/libcore/result.rs:1084:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561b4ea10c4b - backtrace::backtrace::libunwind::trace::h88d9499c2d7e1dbc
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x561b4ea10c4b - backtrace::backtrace::trace_unsynchronized::h64df3798ffaf338f
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561b4ea10c4b - std::sys_common::backtrace::_print::h549f3692f8d3f393
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x561b4ea10c4b - std::sys_common::backtrace::print::h037f1d7e6e0e94de
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x561b4ea10c4b - std::panicking::default_hook::{{closure}}::h88a39cbd1a8489c9
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x561b4ea10926 - std::panicking::default_hook::hdb7c9c6632585072
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x561b4ea113bd - std::panicking::rust_panic_with_hook::h906f2b0ace338868
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x561b4ea10f42 - std::panicking::continue_panic_fmt::h3597c4d7a66a7e7b
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x561b4ea10e26 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x561b4ea2d66d - core::panicking::panic_fmt::he1729b262db7d0f1
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x561b4ea2d767 - core::result::unwrap_failed::h24d6964fca127bdf
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x561b4e853f08 - core::result::Result<T,E>::unwrap::haa3a216c6c1d95ee
[INFO] [stderr]                                at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libcore/result.rs:852
[INFO] [stderr]   12:     0x561b4e858217 - build_script_build::prepare_libtorch_dir::he5a1fe5560374d26
[INFO] [stderr]                                at /opt/crater/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:106
[INFO] [stderr]   13:     0x561b4e858d61 - build_script_build::main::h2112f1a5e899949c
[INFO] [stderr]                                at /opt/crater/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:143
[INFO] [stderr]   14:     0x561b4e8602a0 - std::rt::lang_start::{{closure}}::h97582275606a01f1
[INFO] [stderr]                                at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64
[INFO] [stderr]   15:     0x561b4ea10dc3 - std::rt::lang_start_internal::{{closure}}::h9ea1b9f2bce8ffef
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   16:     0x561b4ea10dc3 - std::panicking::try::do_call::hfbd18154d6e81e0d
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   17:     0x561b4ea19eaa - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   18:     0x561b4ea1198d - std::panicking::try::h9cb4b237371abf81
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   19:     0x561b4ea1198d - std::panic::catch_unwind::hd403853a39b4e3c9
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   20:     0x561b4ea1198d - std::rt::lang_start_internal::h7e5e162b169a1510
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   21:     0x561b4e860279 - std::rt::lang_start::h0b8b6d0ec8406742
[INFO] [stderr]                                at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64
[INFO] [stderr]   22:     0x561b4e85906a - main
[INFO] [stderr]   23:     0x7f144cd762e1 - __libc_start_main
[INFO] [stderr]   24:     0x561b4e84521a - _start
[INFO] [stderr]   25:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4e29168f77fe5e42890b47a578c90805814eebaa7134d0f445d851eae4864628"`
[INFO] running `"docker" "rm" "-f" "4e29168f77fe5e42890b47a578c90805814eebaa7134d0f445d851eae4864628"`
[INFO] [stdout] 4e29168f77fe5e42890b47a578c90805814eebaa7134d0f445d851eae4864628