[INFO] cloning repository https://github.com/m-decoster/device-tensors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m-decoster/device-tensors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-decoster%2Fdevice-tensors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-decoster%2Fdevice-tensors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d34e4980c79a30d4ee39a48bb46e55b089711bbe
[INFO] checking m-decoster/device-tensors against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-decoster%2Fdevice-tensors" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/m-decoster/device-tensors on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/m-decoster/device-tensors
[INFO] finished tweaking git repo https://github.com/m-decoster/device-tensors
[INFO] tweaked toml for git repo https://github.com/m-decoster/device-tensors written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/m-decoster/device-tensors already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 984529a861ebc83dc939d0c8251fd9611443a31f9e87f3297fd4a89e498651a2
[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" "984529a861ebc83dc939d0c8251fd9611443a31f9e87f3297fd4a89e498651a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "984529a861ebc83dc939d0c8251fd9611443a31f9e87f3297fd4a89e498651a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "984529a861ebc83dc939d0c8251fd9611443a31f9e87f3297fd4a89e498651a2", kill_on_drop: false }`
[INFO] [stdout] 984529a861ebc83dc939d0c8251fd9611443a31f9e87f3297fd4a89e498651a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a352dda8dc9e380c6f8de41b279c667b7068aeae529e15c0404b30a03bd14dd
[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" "7a352dda8dc9e380c6f8de41b279c667b7068aeae529e15c0404b30a03bd14dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling curl v0.4.31
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling podio v0.1.7
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling curl-sys v0.4.33+curl-7.71.1
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling zip v0.5.6
[INFO] [stderr]     Checking ndarray v0.13.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling torch-sys v0.1.7
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.7`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-705d7d9c922f2e59/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-0.1.8/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-0.1.8/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-0.1.8/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-0.1.8/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:182
[INFO] [stderr]      7: core::ops::function::FnOnce::call_once
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:227
[INFO] [stderr]      8: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:125
[INFO] [stderr]      9: std::rt::lang_start::{{closure}}
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:66
[INFO] [stderr]     10: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:259
[INFO] [stderr]         std::panicking::try::do_call
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:379
[INFO] [stderr]         std::panicking::try
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:343
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panic.rs:431
[INFO] [stderr]         std::rt::lang_start_internal
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:51
[INFO] [stderr]     11: std::rt::lang_start
[INFO] [stderr]                at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:65
[INFO] [stderr]     12: main
[INFO] [stderr]     13: __libc_start_main
[INFO] [stderr]     14: _start
[INFO] [stderr]   ', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.7/build.rs:117:48
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e0b382f720 - std::backtrace_rs::backtrace::libunwind::trace::h4dee703919bfd40a
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55e0b382f720 - std::backtrace_rs::backtrace::trace_unsynchronized::h457e839f1a563e20
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e0b382f720 - std::sys_common::backtrace::_print_fmt::h86a55fb30f8393c8
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55e0b382f720 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7b3d6cac46d277e1
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55e0b384d1cf - core::fmt::write::h127419eb46f2ecc9
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/fmt/mod.rs:1092:17
[INFO] [stderr]      5:     0x55e0b382bd22 - std::io::Write::write_fmt::h6010cfbb4726588b
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/io/mod.rs:1572:15
[INFO] [stderr]      6:     0x55e0b3831cc5 - std::sys_common::backtrace::_print::h79b4f9652330cc9d
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55e0b3831cc5 - std::sys_common::backtrace::print::h330bb326a76af8cf
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55e0b3831cc5 - std::panicking::default_hook::{{closure}}::heb6a42a7d50a472e
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55e0b3831773 - std::panicking::default_hook::h17e521ba6d68d6e1
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55e0b38322cd - std::panicking::rust_panic_with_hook::h70db735e3a6e70cb
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x55e0b3831e67 - std::panicking::begin_panic_handler::{{closure}}::h777c71c8e5a7e25c
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x55e0b382fbdc - std::sys_common::backtrace::__rust_end_short_backtrace::h3e9bf30168899554
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55e0b3831dc9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x55e0b3636951 - core::panicking::panic_fmt::h5322a082d19786c3
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55e0b3636843 - core::option::expect_none_failed::h354eaa93a51d71b8
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/option.rs:1329:5
[INFO] [stderr]     16:     0x55e0b364c0d0 - core::result::Result<T,E>::unwrap::h26c44acaa9c49737
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x55e0b364406a - build_script_build::prepare_libtorch_dir::h8e6511ba1a6fedf4
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.7/build.rs:117:13
[INFO] [stderr]     18:     0x55e0b3645274 - build_script_build::main::h7b3a08ef4be54f3b
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.7/build.rs:182:24
[INFO] [stderr]     19:     0x55e0b364050b - core::ops::function::FnOnce::call_once::hbdee81a460907687
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x55e0b363ffee - std::sys_common::backtrace::__rust_begin_short_backtrace::hf52d0c057a6a7901
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x55e0b363ab71 - std::rt::lang_start::{{closure}}::h24d6e9c16a98ba9b
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:66:18
[INFO] [stderr]     22:     0x55e0b38327ca - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hbcc915e668c7ca11
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x55e0b38327ca - std::panicking::try::do_call::h6b0f430d48122ddf
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:379:40
[INFO] [stderr]     24:     0x55e0b38327ca - std::panicking::try::h6ba420e2e21b5afa
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:343:19
[INFO] [stderr]     25:     0x55e0b38327ca - std::panic::catch_unwind::h8366719d1f615eee
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panic.rs:431:14
[INFO] [stderr]     26:     0x55e0b38327ca - std::rt::lang_start_internal::h965c28c9ce06ee73
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:51:25
[INFO] [stderr]     27:     0x55e0b363ab50 - std::rt::lang_start::h1c9e372c4e5bf448
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:65:5
[INFO] [stderr]     28:     0x55e0b3645abc - main
[INFO] [stderr]     29:     0x7ff0ec51e0b3 - __libc_start_main
[INFO] [stderr]     30:     0x55e0b363700e - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "7a352dda8dc9e380c6f8de41b279c667b7068aeae529e15c0404b30a03bd14dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a352dda8dc9e380c6f8de41b279c667b7068aeae529e15c0404b30a03bd14dd", kill_on_drop: false }`
[INFO] [stdout] 7a352dda8dc9e380c6f8de41b279c667b7068aeae529e15c0404b30a03bd14dd