[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] cbf2f8b71b159df57327841566f5be14bb171137
[INFO] checking vegapit/tchtut against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvegapit%2Ftchtut" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vegapit/tchtut on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "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-7/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" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=allow" "-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" "+beta-2019-10-27" "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] 79f6fc10fb2513d08d26489cbf3be912395a0dd3170aeb39940ed866d483e9f3
[INFO] running `"docker" "start" "-a" "79f6fc10fb2513d08d26489cbf3be912395a0dd3170aeb39940ed866d483e9f3"`
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling curl-sys v0.4.20
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling socket2 v0.3.9
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libflate v0.1.25
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]    Compiling backtrace v0.3.32
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking servo-fontconfig-sys v4.0.7
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking font-loader v0.8.0
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.2
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling torch-sys v0.1.1 (https://github.com/LaurentMazare/tch-rs#2fe00ace)
[INFO] [stderr]     Checking plotters v0.2.2
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.1 (https://github.com/LaurentMazare/tch-rs#2fe00ace)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-501ae0dd2ce7e559/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::h3aa08f239f5b8ab3 (0x5557b5680cdf)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stderr]    1: failure::backtrace::Backtrace::new::hfeb515cf4c84fb2a (0x5557b5680a8e)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stderr]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h13f3aedd646ecde2 (0x5557b5523a4c)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/error_impl.rs:19
[INFO] [stderr]    3: <failure::error::Error as core::convert::From<F>>::from::heec5fb8674e7a408 (0x5557b5515478)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/mod.rs:36
[INFO] [stderr]    4: build_script_build::download::h6d6fe8e49634144c (0x5557b5517a57)
[INFO] [stderr]              at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:30
[INFO] [stderr]    5: build_script_build::prepare_libtorch_dir::h0e1ecc9ba96c0fac (0x5557b5519bca)
[INFO] [stderr]              at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:106
[INFO] [stderr]    6: build_script_build::main::hd44bc43526e29b4f (0x5557b551a741)
[INFO] [stderr]              at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:143
[INFO] [stderr]    7: std::rt::lang_start::{{closure}}::h784ed05e35188778 (0x5557b5520520)
[INFO] [stderr]              at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libstd/rt.rs:64
[INFO] [stderr]    8: std::rt::lang_start_internal::{{closure}}::hafe4631cc0633d40 (0x5557b56d2153)
[INFO] [stderr]              at src/libstd/rt.rs:49
[INFO] [stderr]       std::panicking::try::do_call::h717827b47231de13
[INFO] [stderr]              at src/libstd/panicking.rs:292
[INFO] [stderr]    9: __rust_maybe_catch_panic (0x5557b56db05a)
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   10: std::panicking::try::h389045103d38e408 (0x5557b56d2cdd)
[INFO] [stderr]              at src/libstd/panicking.rs:271
[INFO] [stderr]       std::panic::catch_unwind::hcca2ee11418f038b
[INFO] [stderr]              at src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal::hc0e13ab06870c4ba
[INFO] [stderr]              at src/libstd/rt.rs:48
[INFO] [stderr]   11: std::rt::lang_start::hb90106dc7b6cbcd8 (0x5557b55204f9)
[INFO] [stderr]              at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libstd/rt.rs:64
[INFO] [stderr]   12: main (0x5557b551aa4a)
[INFO] [stderr]   13: __libc_start_main (0x7f09740e3b97)
[INFO] [stderr]   14: _start (0x5557b55068da)
[INFO] [stderr]   15: <unknown> (0x0)', src/libcore/result.rs:1165:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5557b56cf384 - backtrace::backtrace::libunwind::trace::h14dfaa7b4b7da907
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x5557b56cf384 - backtrace::backtrace::trace_unsynchronized::hdb0fcb36bd91e7b1
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5557b56cf384 - std::sys_common::backtrace::_print_fmt::hcf7905a3a69ef6ef
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x5557b56cf384 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1d652799221364ff
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x5557b56f143c - core::fmt::write::h123c1219d03dc2b2
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x5557b56cb147 - std::io::Write::write_fmt::h1dd67bc0a861a8a1
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x5557b56d2025 - std::sys_common::backtrace::_print::h906393f990c77027
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x5557b56d2025 - std::sys_common::backtrace::print::h5760dd4bb9d97089
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5557b56d2025 - std::panicking::default_hook::{{closure}}::h9c8250816dd18f0a
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x5557b56d1d16 - std::panicking::default_hook::h3e97ab45acb236f1
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x5557b56d2725 - std::panicking::rust_panic_with_hook::hfd8c6048abefa5d1
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x5557b56d22c2 - std::panicking::continue_panic_fmt::h7778586face20ea0
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x5557b56d21b6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:307
[INFO] [stderr]   13:     0x5557b56ee79a - core::panicking::panic_fmt::ha8adde723bf3802d
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   14:     0x5557b56ee897 - core::result::unwrap_failed::hf6a6f53f1c4931c8
[INFO] [stderr]                                at src/libcore/result.rs:1165
[INFO] [stderr]   15:     0x5557b5516a48 - core::result::Result<T,E>::unwrap::h6ee1eabad5b7bf73
[INFO] [stderr]                                at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libcore/result.rs:933
[INFO] [stderr]   16:     0x5557b5519bf7 - build_script_build::prepare_libtorch_dir::h0e1ecc9ba96c0fac
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:106
[INFO] [stderr]   17:     0x5557b551a741 - build_script_build::main::hd44bc43526e29b4f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:143
[INFO] [stderr]   18:     0x5557b5520520 - std::rt::lang_start::{{closure}}::h784ed05e35188778
[INFO] [stderr]                                at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x5557b56d2153 - std::rt::lang_start_internal::{{closure}}::hafe4631cc0633d40
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   20:     0x5557b56d2153 - std::panicking::try::do_call::h717827b47231de13
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   21:     0x5557b56db05a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   22:     0x5557b56d2cdd - std::panicking::try::h389045103d38e408
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   23:     0x5557b56d2cdd - std::panic::catch_unwind::hcca2ee11418f038b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   24:     0x5557b56d2cdd - std::rt::lang_start_internal::hc0e13ab06870c4ba
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   25:     0x5557b55204f9 - std::rt::lang_start::hb90106dc7b6cbcd8
[INFO] [stderr]                                at /rustc/23f8f652bcea053b70c0030008941f5f8476b5a0/src/libstd/rt.rs:64
[INFO] [stderr]   26:     0x5557b551aa4a - main
[INFO] [stderr]   27:     0x7f09740e3b97 - __libc_start_main
[INFO] [stderr]   28:     0x5557b55068da - _start
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "79f6fc10fb2513d08d26489cbf3be912395a0dd3170aeb39940ed866d483e9f3"`
[INFO] running `"docker" "rm" "-f" "79f6fc10fb2513d08d26489cbf3be912395a0dd3170aeb39940ed866d483e9f3"`
[INFO] [stdout] 79f6fc10fb2513d08d26489cbf3be912395a0dd3170aeb39940ed866d483e9f3