[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 try#3738e44c8fffe9e1fdfda9304a4df74ce7b29152 for pr-68746
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvegapit%2Ftchtut" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vegapit/tchtut on toolchain 3738e44c8fffe9e1fdfda9304a4df74ce7b29152
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "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-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/LaurentMazare/tch-rs`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5b034809d63cf0985d706c88bedac873d02d194dd7e2d67a18edbb7cf722b9a9
[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" "5b034809d63cf0985d706c88bedac873d02d194dd7e2d67a18edbb7cf722b9a9"`
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]    Compiling curl-sys v0.4.25
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking euclid v0.20.7
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking ndarray v0.13.0
[INFO] [stderr]     Checking zip v0.5.4
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]     Checking image v0.22.4
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking font-kit v0.4.0
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling torch-sys v0.1.5 (https://github.com/LaurentMazare/tch-rs#312a28df)
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.5 (https://github.com/LaurentMazare/tch-rs#312a28df)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-383dc463405bfe51/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:117
[INFO] [stderr]    6: build_script_build::main
[INFO] [stderr]              at build.rs:174
[INFO] [stderr]    7: std::rt::lang_start::{{closure}}
[INFO] [stderr]              at /rustc/3738e44c8fffe9e1fdfda9304a4df74ce7b29152/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:303
[INFO] [stderr]    9: __rust_maybe_catch_panic
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   10: std::panicking::try
[INFO] [stderr]              at src/libstd/panicking.rs:281
[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/3738e44c8fffe9e1fdfda9304a4df74ce7b29152/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/312a28d/torch-sys/build.rs:117:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55e74b39df88 - backtrace::backtrace::libunwind::trace::hcb5c3e9f7e1ea650
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55e74b39df88 - backtrace::backtrace::trace_unsynchronized::h8d2cf7d7c9151b5f
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55e74b39df88 - std::sys_common::backtrace::_print_fmt::hb2695e112e335a40
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x55e74b39df88 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h05262518ded0159f
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55e74b3c08ac - core::fmt::write::h878d462cd436633c
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1052
[INFO] [stderr]    5:     0x55e74b399bc7 - std::io::Write::write_fmt::h453d7ce9b460b348
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x55e74b3a0dd5 - std::sys_common::backtrace::_print::hef41b6dbad001e1b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55e74b3a0dd5 - std::sys_common::backtrace::print::hd911be6dd5db9f65
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55e74b3a0dd5 - std::panicking::default_hook::{{closure}}::h6763d82d5ad21342
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x55e74b3a0b16 - std::panicking::default_hook::h7e0514c335de079d
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x55e74b3a1432 - std::panicking::rust_panic_with_hook::h0dae373da0837fa4
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x55e74b3a101b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:378
[INFO] [stderr]   12:     0x55e74b3bfaf1 - core::panicking::panic_fmt::h875be34c31f269b6
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x55e74b3bf913 - core::option::expect_none_failed::h4adaad03accdb0f7
[INFO] [stderr]                                at src/libcore/option.rs:1199
[INFO] [stderr]   14:     0x55e74b20c9f9 - core::result::Result<T,E>::unwrap::h94d1bd6f4bbdce98
[INFO] [stderr]                                at /rustc/3738e44c8fffe9e1fdfda9304a4df74ce7b29152/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x55e74b208e64 - build_script_build::prepare_libtorch_dir::h041310107037850d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/312a28d/torch-sys/build.rs:117
[INFO] [stderr]   16:     0x55e74b209f44 - build_script_build::main::h0759cb8e0c875202
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/312a28d/torch-sys/build.rs:174
[INFO] [stderr]   17:     0x55e74b21c210 - std::rt::lang_start::{{closure}}::h992b470eb1a4ea02
[INFO] [stderr]                                at /rustc/3738e44c8fffe9e1fdfda9304a4df74ce7b29152/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x55e74b3a0ef3 - std::rt::lang_start_internal::{{closure}}::h241bd727d7a41adc
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x55e74b3a0ef3 - std::panicking::try::do_call::hd241df36f7b814da
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   20:     0x55e74b3aa3d7 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   21:     0x55e74b3a19a9 - std::panicking::try::h8a1931d0f1bb70a1
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   22:     0x55e74b3a19a9 - std::panic::catch_unwind::h22c6782f26e3268e
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x55e74b3a19a9 - std::rt::lang_start_internal::hf15683adb880b573
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   24:     0x55e74b21c1e9 - std::rt::lang_start::hd6aa4e6a0a832014
[INFO] [stderr]                                at /rustc/3738e44c8fffe9e1fdfda9304a4df74ce7b29152/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x55e74b20a3ea - main
[INFO] [stderr]   26:     0x7f003780db97 - __libc_start_main
[INFO] [stderr]   27:     0x55e74b202eea - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "5b034809d63cf0985d706c88bedac873d02d194dd7e2d67a18edbb7cf722b9a9"`
[INFO] running `"docker" "rm" "-f" "5b034809d63cf0985d706c88bedac873d02d194dd7e2d67a18edbb7cf722b9a9"`
[INFO] [stdout] 5b034809d63cf0985d706c88bedac873d02d194dd7e2d67a18edbb7cf722b9a9