[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#be493fe8cc40c3d3f6030a1313c1ff747fce770d for pr-69129
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvegapit%2Ftchtut" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vegapit/tchtut on toolchain be493fe8cc40c3d3f6030a1313c1ff747fce770d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+be493fe8cc40c3d3f6030a1313c1ff747fce770d" "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-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+be493fe8cc40c3d3f6030a1313c1ff747fce770d" "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" "+be493fe8cc40c3d3f6030a1313c1ff747fce770d" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+be493fe8cc40c3d3f6030a1313c1ff747fce770d" "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] 57497cc3816d62d308203251c09197a779a7e652c783e060f0d393d27af95f35
[INFO] running `"docker" "start" "-a" "57497cc3816d62d308203251c09197a779a7e652c783e060f0d393d27af95f35"`
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[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]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking stb_truetype v0.3.1
[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 backtrace v0.3.44
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking ndarray v0.13.0
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]    Compiling zip v0.5.4
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking font-kit v0.4.0
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]    Compiling torch-sys v0.1.6 (https://github.com/LaurentMazare/tch-rs#39851f24)
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.6 (https://github.com/LaurentMazare/tch-rs#39851f24)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-f5deb86b17d5e4a5/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-0.1.6/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:175
[INFO] [stderr]    7: std::rt::lang_start::{{closure}}
[INFO] [stderr]              at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/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/be493fe8cc40c3d3f6030a1313c1ff747fce770d/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/39851f2/torch-sys/build.rs:117:13
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55ce510ec484 - backtrace::backtrace::libunwind::trace::h85814ed5761b405b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55ce510ec484 - backtrace::backtrace::trace_unsynchronized::h7e14b55873159a50
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55ce510ec484 - std::sys_common::backtrace::_print_fmt::h06984e0f03402a64
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55ce510ec484 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h54c9889fb992fb45
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55ce5110edfc - core::fmt::write::h07730eab2db38382
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1052
[INFO] [stderr]    5:     0x55ce510e8037 - std::io::Write::write_fmt::hbed464fdb7564829
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x55ce510ef2f5 - std::sys_common::backtrace::_print::h809bdb75f2567ffd
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55ce510ef2f5 - std::sys_common::backtrace::print::hd24101ae6893de76
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55ce510ef2f5 - std::panicking::default_hook::{{closure}}::hb2df444c384c9d7c
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x55ce510ef036 - std::panicking::default_hook::hee61a28e9920f483
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x55ce510ef952 - std::panicking::rust_panic_with_hook::h4b802d420faaf7c4
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x55ce510ef53b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:378
[INFO] [stderr]   12:     0x55ce5110e041 - core::panicking::panic_fmt::h14dd4a2469d1f31f
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x55ce5110de63 - core::option::expect_none_failed::h533d3ff7c182d86b
[INFO] [stderr]                                at src/libcore/option.rs:1211
[INFO] [stderr]   14:     0x55ce50f604e1 - core::result::Result<T,E>::unwrap::hc5f64c797a61b4ff
[INFO] [stderr]                                at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libcore/result.rs:1003
[INFO] [stderr]   15:     0x55ce50f5c71b - build_script_build::prepare_libtorch_dir::hcfb891ada5d24376
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/39851f2/torch-sys/build.rs:117
[INFO] [stderr]   16:     0x55ce50f5d7c4 - build_script_build::main::h86f4adeefa34d279
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/39851f2/torch-sys/build.rs:175
[INFO] [stderr]   17:     0x55ce50f6f76b - std::rt::lang_start::{{closure}}::hb4ca533bdbd75cfd
[INFO] [stderr]                                at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x55ce510ef413 - std::rt::lang_start_internal::{{closure}}::hc91014860c894262
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x55ce510ef413 - std::panicking::try::do_call::hb7281b56bbedf5f6
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   20:     0x55ce510f8967 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   21:     0x55ce510efec9 - std::panicking::try::he2ddd46f7d421fa4
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   22:     0x55ce510efec9 - std::panic::catch_unwind::h96529f74bbd30954
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x55ce510efec9 - std::rt::lang_start_internal::h66b23d61651d06fd
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   24:     0x55ce50f6f747 - std::rt::lang_start::h9576e196feeccd8d
[INFO] [stderr]                                at /rustc/be493fe8cc40c3d3f6030a1313c1ff747fce770d/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x55ce50f5dc6a - main
[INFO] [stderr]   26:     0x7fc1490f3b97 - __libc_start_main
[INFO] [stderr]   27:     0x55ce50f568ea - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "57497cc3816d62d308203251c09197a779a7e652c783e060f0d393d27af95f35"`
[INFO] running `"docker" "rm" "-f" "57497cc3816d62d308203251c09197a779a7e652c783e060f0d393d27af95f35"`
[INFO] [stdout] 57497cc3816d62d308203251c09197a779a7e652c783e060f0d393d27af95f35