[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] 0175cac21542c02de013cac90b4d1a7b7e027321
[INFO] checking vegapit/tchtut against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvegapit%2Ftchtut" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vegapit/tchtut on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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-11/source/Cargo.toml
[INFO] crate git repo https://github.com/vegapit/tchtut already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eab861f29aa9f345d0ca959327179b250e8db4f5e031cf993d7f7eaa4faa7cdd
[INFO] running `"docker" "start" "-a" "eab861f29aa9f345d0ca959327179b250e8db4f5e031cf993d7f7eaa4faa7cdd"`
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking svg v0.6.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling curl-sys v0.4.23
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]    Compiling flate2 v1.0.12
[INFO] [stderr]     Checking euclid v0.20.3
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]     Checking rusttype v0.8.1
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking font-kit v0.4.0
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling torch-sys v0.1.3 (https://github.com/LaurentMazare/tch-rs#81f6215c)
[INFO] [stderr]     Checking plotters v0.2.11
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.3 (https://github.com/LaurentMazare/tch-rs#81f6215c)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-483ddaa364d99801/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
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.6/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-0.1.6/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-0.1.6/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-0.1.6/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:116
[INFO] [stderr]    6: build_script_build::main
[INFO] [stderr]              at build.rs:173
[INFO] [stderr]    7: std::rt::lang_start::{{closure}}
[INFO] [stderr]              at /rustc/30ca215b4e38b32aa7abdd635c5e2d56f5724494/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:296
[INFO] [stderr]    9: __rust_maybe_catch_panic
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:79
[INFO] [stderr]   10: std::panicking::try
[INFO] [stderr]              at src/libstd/panicking.rs:272
[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]   11: std::rt::lang_start
[INFO] [stderr]              at /rustc/30ca215b4e38b32aa7abdd635c5e2d56f5724494/src/libstd/rt.rs:67
[INFO] [stderr]   12: main
[INFO] [stderr]   13: __libc_start_main
[INFO] [stderr]   14: _start
[INFO] [stderr] ', /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/81f6215/torch-sys/build.rs:116:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56179826c454 - backtrace::backtrace::libunwind::trace::h80055c9fc04ee02a
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x56179826c454 - backtrace::backtrace::trace_unsynchronized::hdc3325d56f0c3cf3
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56179826c454 - std::sys_common::backtrace::_print_fmt::hf6698baf6d0d6f95
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x56179826c454 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hde7eb8c3d6c49873
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x56179828c72c - core::fmt::write::h5d76b6b7b1847936
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1057
[INFO] [stderr]    5:     0x561798268347 - std::io::Write::write_fmt::h77ba5ebe1eee52ad
[INFO] [stderr]                                at src/libstd/io/mod.rs:1426
[INFO] [stderr]    6:     0x56179826ed65 - std::sys_common::backtrace::_print::hf8a47a8d351e0fbd
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x56179826ed65 - std::sys_common::backtrace::print::h71ada4f56fb6e22c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x56179826ed65 - std::panicking::default_hook::{{closure}}::h6a3ba1f4739dcd04
[INFO] [stderr]                                at src/libstd/panicking.rs:195
[INFO] [stderr]    9:     0x56179826ea51 - std::panicking::default_hook::he979893a7228a5c0
[INFO] [stderr]                                at src/libstd/panicking.rs:215
[INFO] [stderr]   10:     0x56179826f3ca - std::panicking::rust_panic_with_hook::h697f90879213769b
[INFO] [stderr]                                at src/libstd/panicking.rs:463
[INFO] [stderr]   11:     0x56179826efb0 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:371
[INFO] [stderr]   12:     0x56179828ba71 - core::panicking::panic_fmt::h0b34db59a32ffb79
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x56179828b893 - core::option::expect_none_failed::hdc3fe95c2358cbf1
[INFO] [stderr]                                at src/libcore/option.rs:1198
[INFO] [stderr]   14:     0x5617980db5d9 - core::result::Result<T,E>::unwrap::he2b7ff15c8d0d74a
[INFO] [stderr]                                at /rustc/30ca215b4e38b32aa7abdd635c5e2d56f5724494/src/libcore/result.rs:962
[INFO] [stderr]   15:     0x5617980e195d - build_script_build::prepare_libtorch_dir::hb930efed00e9d63a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/81f6215/torch-sys/build.rs:116
[INFO] [stderr]   16:     0x5617980e29f4 - build_script_build::main::h1b4471957b770b3a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/81f6215/torch-sys/build.rs:173
[INFO] [stderr]   17:     0x5617980e84f0 - std::rt::lang_start::{{closure}}::h187502c1ad7b5509
[INFO] [stderr]                                at /rustc/30ca215b4e38b32aa7abdd635c5e2d56f5724494/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x56179826ee93 - std::rt::lang_start_internal::{{closure}}::h7ff682ecef2392c4
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x56179826ee93 - std::panicking::try::do_call::h6e874d12a78bb537
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   20:     0x561798277fba - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:79
[INFO] [stderr]   21:     0x56179826f930 - std::panicking::try::h21e662efa77e70e9
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]   22:     0x56179826f930 - std::panic::catch_unwind::hcf22a1acd4d4cf4f
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x56179826f930 - std::rt::lang_start_internal::hf0c209ee2831e2b5
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   24:     0x5617980e84c9 - std::rt::lang_start::h047eea98d21258d2
[INFO] [stderr]                                at /rustc/30ca215b4e38b32aa7abdd635c5e2d56f5724494/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x5617980e2e4a - main
[INFO] [stderr]   26:     0x7fe148585b97 - __libc_start_main
[INFO] [stderr]   27:     0x5617980d133a - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "eab861f29aa9f345d0ca959327179b250e8db4f5e031cf993d7f7eaa4faa7cdd"`
[INFO] running `"docker" "rm" "-f" "eab861f29aa9f345d0ca959327179b250e8db4f5e031cf993d7f7eaa4faa7cdd"`
[INFO] [stdout] eab861f29aa9f345d0ca959327179b250e8db4f5e031cf993d7f7eaa4faa7cdd