[INFO] updating cached repository https://github.com/uzushino/crf-rs
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43a43612c947b027b696f9b646481b4ace1547e6
[INFO] checking uzushino/crf-rs against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzushino%2Fcrf-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uzushino/crf-rs on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uzushino/crf-rs
[INFO] finished tweaking git repo https://github.com/uzushino/crf-rs
[INFO] tweaked toml for git repo https://github.com/uzushino/crf-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/uzushino/crf-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 798a926525a7a2a95c19fa6235b583c471af18d934dfe5463762d264b08554bf
[INFO] running `Command { std: "docker" "start" "-a" "798a926525a7a2a95c19fa6235b583c471af18d934dfe5463762d264b08554bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "798a926525a7a2a95c19fa6235b583c471af18d934dfe5463762d264b08554bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798a926525a7a2a95c19fa6235b583c471af18d934dfe5463762d264b08554bf", kill_on_drop: false }`
[INFO] [stdout] 798a926525a7a2a95c19fa6235b583c471af18d934dfe5463762d264b08554bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf57ae70883a1a4cf2b5168e405e1b82949dd10d595b220e342b0d658ced6f99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf57ae70883a1a4cf2b5168e405e1b82949dd10d595b220e342b0d658ced6f99", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling miniz_oxide v0.3.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling curl-sys v0.4.24
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling zip v0.5.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling torch-sys v0.1.3
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-50f32ade824d3b4e/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/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/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]       std::panicking::try
[INFO] [stderr]              at src/libstd/panicking.rs:273
[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/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/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/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.3/build.rs:117:48
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x557e36c6b8b5 - backtrace::backtrace::libunwind::trace::h34afbfad7fd770fc
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x557e36c6b8b5 - backtrace::backtrace::trace_unsynchronized::h460d522b1619a600
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x557e36c6b8b5 - std::sys_common::backtrace::_print_fmt::ha45fac10086813b4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x557e36c6b8b5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hde84f63fcfd0e6de
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x557e36c9253c - core::fmt::write::h540ac4a6a1232abc
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x557e36c67523 - std::io::Write::write_fmt::hc344eafd6e850b4d
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x557e36c6e6f0 - std::sys_common::backtrace::_print::h4db88ff15cb5d61d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x557e36c6e6f0 - std::sys_common::backtrace::print::h5fc39e1b1f610bd3
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x557e36c6e6f0 - std::panicking::default_hook::{{closure}}::h59e55edacb1d974a
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x557e36c6e43c - std::panicking::default_hook::heee4c8016dfbf328
[INFO] [stderr]                                at src/libstd/panicking.rs:217
[INFO] [stderr]   10:     0x557e36c6ed27 - std::panicking::rust_panic_with_hook::h8405b6301c79fb5a
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x557e36c6e92b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]   12:     0x557e36c91941 - core::panicking::panic_fmt::h78830ea6a34e7206
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x557e36c91763 - core::option::expect_none_failed::hf79bbb5ca7e09e08
[INFO] [stderr]                                at src/libcore/option.rs:1274
[INFO] [stderr]   14:     0x557e36b05bd3 - core::result::Result<T,E>::unwrap::h911bbe4b4a9d4ff0
[INFO] [stderr]                                at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libcore/result.rs:1005
[INFO] [stderr]   15:     0x557e36af1993 - build_script_build::prepare_libtorch_dir::h8b354e78953b934f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.3/build.rs:117
[INFO] [stderr]   16:     0x557e36af29e4 - build_script_build::main::he5aea198f696fa2a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.3/build.rs:174
[INFO] [stderr]   17:     0x557e36af683b - std::rt::lang_start::{{closure}}::hf35c28590ce02cf4
[INFO] [stderr]                                at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x557e36c6f1b8 - std::rt::lang_start_internal::{{closure}}::h7cea099ad4edf1eb
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x557e36c6f1b8 - std::panicking::try::do_call::h42d93372c44025d2
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   20:     0x557e36c6f1b8 - std::panicking::try::hb47a4182362d3341
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   21:     0x557e36c6f1b8 - std::panic::catch_unwind::h2afcfbf3125915b4
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x557e36c6f1b8 - std::rt::lang_start_internal::h4f696727fe904f48
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x557e36af6817 - std::rt::lang_start::hd6a24660a6960c67
[INFO] [stderr]                                at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x557e36af2e5a - main
[INFO] [stderr]   25:     0x7f77d0f170b3 - __libc_start_main
[INFO] [stderr]   26:     0x557e36aec0ce - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "cf57ae70883a1a4cf2b5168e405e1b82949dd10d595b220e342b0d658ced6f99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf57ae70883a1a4cf2b5168e405e1b82949dd10d595b220e342b0d658ced6f99", kill_on_drop: false }`
[INFO] [stdout] cf57ae70883a1a4cf2b5168e405e1b82949dd10d595b220e342b0d658ced6f99