[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#4007d4ef26eab44bdabc2b7574d032152264d3ad for pr-66919
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvegapit%2Ftchtut" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vegapit/tchtut on toolchain 4007d4ef26eab44bdabc2b7574d032152264d3ad
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "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-8/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" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f682eb8fc8f4109df3bed12f3e4cbda1b9382ce44579212e816d603e0552d5bc
[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" "f682eb8fc8f4109df3bed12f3e4cbda1b9382ce44579212e816d603e0552d5bc"`
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking svg v0.6.0
[INFO] [stderr]    Compiling curl-sys v0.4.23
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling openssl-sys v0.9.52
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking rusttype v0.8.1
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]    Compiling miniz_oxide v0.3.5
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]    Compiling flate2 v1.0.12
[INFO] [stderr]     Checking font-kit v0.4.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]     Checking plotters v0.2.11
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling torch-sys v0.1.3 (https://github.com/LaurentMazare/tch-rs#81f6215c)
[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-b9d74a5df53be21c/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/4007d4ef26eab44bdabc2b7574d032152264d3ad/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:292
[INFO] [stderr]    9: __rust_maybe_catch_panic
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:81
[INFO] [stderr]   10: std::panicking::try
[INFO] [stderr]              at src/libstd/panicking.rs:270
[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/4007d4ef26eab44bdabc2b7574d032152264d3ad/src/libstd/rt.rs:67
[INFO] [stderr]   12: main
[INFO] [stderr]   13: __libc_start_main
[INFO] [stderr]   14: _start
[INFO] [stderr] ', src/libcore/result.rs:1189:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5607789487e4 - backtrace::backtrace::libunwind::trace::h86a11ecd6abb81ed
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x5607789487e4 - backtrace::backtrace::trace_unsynchronized::hb15fe4110e5f85d2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5607789487e4 - std::sys_common::backtrace::_print_fmt::h3fe925aba6fb8a40
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:84
[INFO] [stderr]    3:     0x5607789487e4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::heeb49cad91640f09
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x56077896a90c - core::fmt::write::h8833349fa0c8591c
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1024
[INFO] [stderr]    5:     0x560778944617 - std::io::Write::write_fmt::h04c97778c24a45de
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x56077894b0ce - std::sys_common::backtrace::_print::h94674bd19992a2fa
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x56077894b0ce - std::sys_common::backtrace::print::h96ed28e8e2a34b72
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x56077894b0ce - std::panicking::default_hook::{{closure}}::h11c2ff14a155c2b9
[INFO] [stderr]                                at src/libstd/panicking.rs:193
[INFO] [stderr]    9:     0x56077894adc1 - std::panicking::default_hook::h036f22f28618618b
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x56077894b7ab - std::panicking::rust_panic_with_hook::hf61d02f6b05d844c
[INFO] [stderr]                                at src/libstd/panicking.rs:471
[INFO] [stderr]   11:     0x56077894b35e - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:375
[INFO] [stderr]   12:     0x560778967f8e - core::panicking::panic_fmt::h9ef0f02a9d526368
[INFO] [stderr]                                at src/libcore/panicking.rs:82
[INFO] [stderr]   13:     0x560778968087 - core::result::unwrap_failed::h794c12ab7a19eb5f
[INFO] [stderr]                                at src/libcore/result.rs:1189
[INFO] [stderr]   14:     0x5607787bb3a8 - core::result::Result<T,E>::unwrap::h87b3f0261672b6a4
[INFO] [stderr]                                at /rustc/4007d4ef26eab44bdabc2b7574d032152264d3ad/src/libcore/result.rs:957
[INFO] [stderr]   15:     0x5607787c11ba - build_script_build::prepare_libtorch_dir::hf8382353da2ea5d0
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/81f6215/torch-sys/build.rs:116
[INFO] [stderr]   16:     0x5607787c2211 - build_script_build::main::hbab8bc159360477f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/81f6215/torch-sys/build.rs:173
[INFO] [stderr]   17:     0x5607787c7d00 - std::rt::lang_start::{{closure}}::h5599975f3dad4887
[INFO] [stderr]                                at /rustc/4007d4ef26eab44bdabc2b7574d032152264d3ad/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x56077894b1f3 - std::rt::lang_start_internal::{{closure}}::h8908fde85afe23e2
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x56077894b1f3 - std::panicking::try::do_call::h4a6b7fd652bb44be
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   20:     0x5607789542ca - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:81
[INFO] [stderr]   21:     0x56077894bd00 - std::panicking::try::h3a04761f208f0237
[INFO] [stderr]                                at src/libstd/panicking.rs:270
[INFO] [stderr]   22:     0x56077894bd00 - std::panic::catch_unwind::hcd13548900b20da0
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x56077894bd00 - std::rt::lang_start_internal::hcbec06ca7695af54
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   24:     0x5607787c7cd9 - std::rt::lang_start::h4f6ddf84a7db1d89
[INFO] [stderr]                                at /rustc/4007d4ef26eab44bdabc2b7574d032152264d3ad/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x5607787c264a - main
[INFO] [stderr]   26:     0x7f1637ba9b97 - __libc_start_main
[INFO] [stderr]   27:     0x5607787b0e0a - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "f682eb8fc8f4109df3bed12f3e4cbda1b9382ce44579212e816d603e0552d5bc"`
[INFO] running `"docker" "rm" "-f" "f682eb8fc8f4109df3bed12f3e4cbda1b9382ce44579212e816d603e0552d5bc"`
[INFO] [stdout] f682eb8fc8f4109df3bed12f3e4cbda1b9382ce44579212e816d603e0552d5bc