[INFO] updating cached repository https://github.com/vegapit/tchtut
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0d6e880f1729a2d4a5a8bb80005d007dbf27982
[INFO] checking vegapit/tchtut against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvegapit%2Ftchtut" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vegapit/tchtut on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vegapit/tchtut
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/vegapit/tchtut
[INFO] tweaked toml for git repo https://github.com/vegapit/tchtut written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/LaurentMazare/tch-rs`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d65a94b44cb6b9edae196020ff6668ebf31c8de12f03b3008952b18a09b1c549
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d65a94b44cb6b9edae196020ff6668ebf31c8de12f03b3008952b18a09b1c549"`
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]     Checking nodrop v0.1.14
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[INFO] [stderr]    Compiling ndarray v0.13.0
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[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking rand_isaac v0.1.1
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[INFO] [stderr]    Compiling rand_chacha v0.1.1
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[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
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[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking aho-corasick v0.7.10
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[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking parking_lot_core v0.7.1
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking termios v0.3.2
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[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand_os v0.1.3
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[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling bzip2-sys v0.1.8+1.0.8
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking euclid v0.20.10
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.5.5
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking console v0.10.0
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking font-kit v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling torch-sys v0.1.6 (https://github.com/LaurentMazare/tch-rs#9f2d8f76)
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.6 (https://github.com/LaurentMazare/tch-rs#9f2d8f76)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-0a000fcee1ab4153/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]    0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/backtrace/internal.rs:46
[INFO] [stderr]    1: failure::backtrace::Backtrace::new
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/backtrace/mod.rs:121
[INFO] [stderr]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/error/error_impl.rs:19
[INFO] [stderr]    3: <failure::error::Error as core::convert::From<F>>::from
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.7/src/error/mod.rs:36
[INFO] [stderr]    4: build_script_build::download
[INFO] [stderr]              at build.rs:30
[INFO] [stderr]    5: build_script_build::prepare_libtorch_dir
[INFO] [stderr]              at build.rs:117
[INFO] [stderr]    6: build_script_build::main
[INFO] [stderr]              at build.rs:175
[INFO] [stderr]    7: std::rt::lang_start::{{closure}}
[INFO] [stderr]              at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]    8: std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]              at src/libstd/rt.rs:52
[INFO] [stderr]       std::panicking::try::do_call
[INFO] [stderr]              at src/libstd/panicking.rs:331
[INFO] [stderr]       std::panicking::try
[INFO] [stderr]              at src/libstd/panicking.rs:274
[INFO] [stderr]       std::panic::catch_unwind
[INFO] [stderr]              at src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal
[INFO] [stderr]              at src/libstd/rt.rs:51
[INFO] [stderr]    9: std::rt::lang_start
[INFO] [stderr]              at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]   10: main
[INFO] [stderr]   11: __libc_start_main
[INFO] [stderr]   12: _start
[INFO] [stderr] ', /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/9f2d8f7/torch-sys/build.rs:117:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5563fb23da34 - backtrace::backtrace::libunwind::trace::ha1e5a41b7d3ba0cf
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5563fb23da34 - backtrace::backtrace::trace_unsynchronized::hf18b8c2f3ff8383d
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5563fb23da34 - std::sys_common::backtrace::_print_fmt::hedecd22228c490e0
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5563fb23da34 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h340395315789722a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5563fb26552c - core::fmt::write::h0facfeb5ca58bc9e
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x5563fb239733 - std::io::Write::write_fmt::h497f72bb257eb6ad
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x5563fb240855 - std::sys_common::backtrace::_print::h6eaeb972ca7f43b9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5563fb240855 - std::sys_common::backtrace::print::h263d3fc63b334d91
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5563fb240855 - std::panicking::default_hook::{{closure}}::h64185686d42f14f7
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5563fb240592 - std::panicking::default_hook::h8d87bde850f1425e
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5563fb240eb2 - std::panicking::rust_panic_with_hook::h066ce8fe1fd73277
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x5563fb240a9b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x5563fb264911 - core::panicking::panic_fmt::h8cf5d83db03cfc35
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x5563fb264733 - core::option::expect_none_failed::h008dc3b23dbfb91c
[INFO] [stderr]                                at src/libcore/option.rs:1268
[INFO] [stderr]   14:     0x5563fb0b6413 - core::result::Result<T,E>::unwrap::h0fec8bcf5d47ca7d
[INFO] [stderr]                                at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libcore/result.rs:1005
[INFO] [stderr]   15:     0x5563fb0b1ae3 - build_script_build::prepare_libtorch_dir::hffab7217c46e143e
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/9f2d8f7/torch-sys/build.rs:117
[INFO] [stderr]   16:     0x5563fb0b2b34 - build_script_build::main::h786c7937e374a198
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/9f2d8f7/torch-sys/build.rs:175
[INFO] [stderr]   17:     0x5563fb0c17eb - std::rt::lang_start::{{closure}}::h8e754e3e7b95e896
[INFO] [stderr]                                at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x5563fb2413c8 - std::rt::lang_start_internal::{{closure}}::hc6afa970c742b02f
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x5563fb2413c8 - std::panicking::try::do_call::h1c002a9a857ea77b
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   20:     0x5563fb2413c8 - std::panicking::try::hccaa00db5e9f336f
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   21:     0x5563fb2413c8 - std::panic::catch_unwind::h3fae1eafc1fa8e97
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x5563fb2413c8 - std::rt::lang_start_internal::hfc8f39fad1a9db56
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x5563fb0c17c7 - std::rt::lang_start::h669f6f4c99179115
[INFO] [stderr]                                at /rustc/ba72b15666b2491415aec703a02c2364fe5e2790/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x5563fb0b2fda - main
[INFO] [stderr]   25:     0x7fe93f66cb97 - __libc_start_main
[INFO] [stderr]   26:     0x5563fb0ac1fa - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d65a94b44cb6b9edae196020ff6668ebf31c8de12f03b3008952b18a09b1c549"`
[INFO] running `"docker" "rm" "-f" "d65a94b44cb6b9edae196020ff6668ebf31c8de12f03b3008952b18a09b1c549"`
[INFO] [stdout] d65a94b44cb6b9edae196020ff6668ebf31c8de12f03b3008952b18a09b1c549