[INFO] updating cached repository https://github.com/vegapit/tchtut
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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 try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvegapit%2Ftchtut" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vegapit/tchtut on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "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 work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/vegapit/tchtut already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b08113c014d6210e4ceefc61930683eac3967f7506ff22b78c52bf751040cb3f
[INFO] running `"docker" "start" "-a" "b08113c014d6210e4ceefc61930683eac3967f7506ff22b78c52bf751040cb3f"`
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling openssl-sys v0.9.47
[INFO] [stderr]    Compiling curl-sys v0.4.20
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling socket2 v0.3.9
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]    Compiling libflate v0.1.25
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling backtrace v0.3.32
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking zip v0.5.2
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling torch-sys v0.1.1 (https://github.com/LaurentMazare/tch-rs#2fe00ace)
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.2
[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-0cf6682902cf4ab8/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::h2c3ff6ef7b559719 (0x55eaa2ee987f)
[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::hbfd85c52c8a7b75f (0x55eaa2ee930e)
[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::ha1fcce07ef4fcb8e (0x55eaa2d8fd1c)
[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::h2912ebfcd899d6ff (0x55eaa2d8d318)
[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::h13e874f8b77503a3 (0x55eaa2d83c87)
[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::h612ce7dd50ee136d (0x55eaa2d85dea)
[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::h20f73f50140105f9 (0x55eaa2d86961)
[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}}::h53040f0f9bdee258 (0x55eaa2d8deb0)
[INFO] [stderr]              at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64
[INFO] [stderr]    8: std::rt::lang_start_internal::{{closure}}::h89bcd519c19d1c00 (0x55eaa2f3a093)
[INFO] [stderr]              at src/libstd/rt.rs:49
[INFO] [stderr]       std::panicking::try::do_call::h9c0ecf24353b2f6f
[INFO] [stderr]              at src/libstd/panicking.rs:296
[INFO] [stderr]    9: __rust_maybe_catch_panic (0x55eaa2f42f9a)
[INFO] [stderr]              at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   10: std::panicking::try::h2cce617c236f51a9 (0x55eaa2f3ac1d)
[INFO] [stderr]              at src/libstd/panicking.rs:275
[INFO] [stderr]       std::panic::catch_unwind::heee61165154957e1
[INFO] [stderr]              at src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal::h84ae79bb2f097b77
[INFO] [stderr]              at src/libstd/rt.rs:48
[INFO] [stderr]   11: std::rt::lang_start::h464b7fde410b9ebb (0x55eaa2d8de89)
[INFO] [stderr]              at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64
[INFO] [stderr]   12: main (0x55eaa2d86c6a)
[INFO] [stderr]   13: __libc_start_main (0x7f87717922e1)
[INFO] [stderr]   14: _start (0x55eaa2d72a9a)
[INFO] [stderr]   15: <unknown> (0x0)', src/libcore/result.rs:1165:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55eaa2f372c4 - backtrace::backtrace::libunwind::trace::h780d9312b947e32f
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55eaa2f372c4 - backtrace::backtrace::trace_unsynchronized::h50fdb9faa9a37c56
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55eaa2f372c4 - std::sys_common::backtrace::_print_fmt::h5fd3d374bdc4a419
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x55eaa2f372c4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hea77cdef8cfcc21d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x55eaa2f5937c - core::fmt::write::h4af900d733d7a583
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55eaa2f33077 - std::io::Write::write_fmt::h7ad411185b661d1b
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55eaa2f39f65 - std::sys_common::backtrace::_print::h7743f537860b7fc2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x55eaa2f39f65 - std::sys_common::backtrace::print::h539b95bb1c3082e1
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x55eaa2f39f65 - std::panicking::default_hook::{{closure}}::hc6479c8b41ede440
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    9:     0x55eaa2f39c56 - std::panicking::default_hook::hd581ebc9f02a25e1
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]   10:     0x55eaa2f3a665 - std::panicking::rust_panic_with_hook::h3ef8c012e2c61ebc
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]   11:     0x55eaa2f3a202 - std::panicking::continue_panic_fmt::he01939da6a6344bb
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]   12:     0x55eaa2f3a0f6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]   13:     0x55eaa2f566da - core::panicking::panic_fmt::h1903c7d3685c01f5
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   14:     0x55eaa2f567d7 - core::result::unwrap_failed::h4bf711114442af64
[INFO] [stderr]                                at src/libcore/result.rs:1165
[INFO] [stderr]   15:     0x55eaa2d82ea8 - core::result::Result<T,E>::unwrap::h8d93fdcb212471d7
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libcore/result.rs:933
[INFO] [stderr]   16:     0x55eaa2d85e17 - build_script_build::prepare_libtorch_dir::h612ce7dd50ee136d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:106
[INFO] [stderr]   17:     0x55eaa2d86961 - build_script_build::main::h20f73f50140105f9
[INFO] [stderr]                                at /opt/rustwide/cargo-home/git/checkouts/tch-rs-b9d1710db79374bb/2fe00ac/torch-sys/build.rs:143
[INFO] [stderr]   18:     0x55eaa2d8deb0 - std::rt::lang_start::{{closure}}::h53040f0f9bdee258
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x55eaa2f3a093 - std::rt::lang_start_internal::{{closure}}::h89bcd519c19d1c00
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   20:     0x55eaa2f3a093 - std::panicking::try::do_call::h9c0ecf24353b2f6f
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   21:     0x55eaa2f42f9a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   22:     0x55eaa2f3ac1d - std::panicking::try::h2cce617c236f51a9
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   23:     0x55eaa2f3ac1d - std::panic::catch_unwind::heee61165154957e1
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   24:     0x55eaa2f3ac1d - std::rt::lang_start_internal::h84ae79bb2f097b77
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   25:     0x55eaa2d8de89 - std::rt::lang_start::h464b7fde410b9ebb
[INFO] [stderr]                                at /rustc/e689e5eaefe96e6dc3ed5bb629c521b7d207aff7/src/libstd/rt.rs:64
[INFO] [stderr]   26:     0x55eaa2d86c6a - main
[INFO] [stderr]   27:     0x7f87717922e1 - __libc_start_main
[INFO] [stderr]   28:     0x55eaa2d72a9a - _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" "b08113c014d6210e4ceefc61930683eac3967f7506ff22b78c52bf751040cb3f"`
[INFO] running `"docker" "rm" "-f" "b08113c014d6210e4ceefc61930683eac3967f7506ff22b78c52bf751040cb3f"`
[INFO] [stdout] b08113c014d6210e4ceefc61930683eac3967f7506ff22b78c52bf751040cb3f