[INFO] updating cached repository dat2/rust_zeromq_examples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dat2/rust_zeromq_examples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dat2/rust_zeromq_examples" "work/ex/beta-1.37-6/sources/1.36.0/gh/dat2/rust_zeromq_examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dat2/rust_zeromq_examples'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dat2/rust_zeromq_examples" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dat2/rust_zeromq_examples"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dat2/rust_zeromq_examples'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34cf668a59a70f3d63bb6043bce4b5f990deb327
[INFO] sha for GitHub repo dat2/rust_zeromq_examples: 34cf668a59a70f3d63bb6043bce4b5f990deb327
[INFO] validating manifest of dat2/rust_zeromq_examples on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dat2/rust_zeromq_examples on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dat2/rust_zeromq_examples
[INFO] finished frobbing dat2/rust_zeromq_examples
[INFO] frobbed toml for dat2/rust_zeromq_examples written to work/ex/beta-1.37-6/sources/1.36.0/gh/dat2/rust_zeromq_examples/Cargo.toml
[INFO] started frobbing dat2/rust_zeromq_examples
[INFO] finished frobbing dat2/rust_zeromq_examples
[INFO] frobbed toml for dat2/rust_zeromq_examples written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dat2/rust_zeromq_examples/Cargo.toml
[INFO] crate dat2/rust_zeromq_examples already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dat2/rust_zeromq_examples/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/erickt/rust-zmq.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/erickt/rust-zmq.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dat2/rust_zeromq_examples against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dat2/rust_zeromq_examples:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] dce920ee491a61c257c1dae48b461c8bf68a5632a5d58210f39e32b494b1a1df
[INFO] running `"docker" "start" "-a" "dce920ee491a61c257c1dae48b461c8bf68a5632a5d58210f39e32b494b1a1df"`
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling zmq v0.9.2 (https://github.com/erickt/rust-zmq.git#3f5a779d)
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling zmq-sys v0.10.0 (https://github.com/erickt/rust-zmq.git#3f5a779d)
[INFO] [stderr] error: failed to run custom build command for `zmq-sys v0.10.0 (https://github.com/erickt/rust-zmq.git#3f5a779d)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/zmq-sys-5b6093713c141853/build-script-main` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Unable to locate libzmq:
[INFO] [stderr] `"pkg-config" "--libs" "--cflags" "libzmq" "libzmq >= 4.1"` did not exit successfully: exit code: 1
[INFO] [stderr] --- stderr
[INFO] [stderr] Package libzmq was not found in the pkg-config search path.
[INFO] [stderr] Perhaps you should add the directory containing `libzmq.pc'
[INFO] [stderr] to the PKG_CONFIG_PATH environment variable
[INFO] [stderr] No package 'libzmq' found
[INFO] [stderr] Package libzmq was not found in the pkg-config search path.
[INFO] [stderr] Perhaps you should add the directory containing `libzmq.pc'
[INFO] [stderr] to the PKG_CONFIG_PATH environment variable
[INFO] [stderr] No package 'libzmq' found
[INFO] [stderr] ', /opt/crater/cargo-home/git/checkouts/rust-zmq-171537f0d9cec03c/3f5a779/zmq-sys/build/pkg_config.rs:26:17
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55f4d8a4f91b - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55f4d8a4f91b - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55f4d8a4f91b - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55f4d8a4f91b - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55f4d8a4f91b - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55f4d8a4f5f7 - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55f4d8a4ffe0 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55f4d8a4fb62 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55f4d8a4faaf - std::panicking::begin_panic_fmt::he65a2e8ff19d8ae0
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x55f4d89aa166 - build_script_main::find::configure::h85801d1027ced743
[INFO] [stderr]                                at /opt/crater/cargo-home/git/checkouts/rust-zmq-171537f0d9cec03c/3f5a779/zmq-sys/build/pkg_config.rs:26
[INFO] [stderr]   10:     0x55f4d89aa626 - build_script_main::main::h0fcdb96cda2951cf
[INFO] [stderr]                                at /opt/crater/cargo-home/git/checkouts/rust-zmq-171537f0d9cec03c/3f5a779/zmq-sys/build/main.rs:6
[INFO] [stderr]   11:     0x55f4d89aaef0 - std::rt::lang_start::{{closure}}::hcde644cdbc59d43a
[INFO] [stderr]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x55f4d8a4fa33 - std::rt::lang_start_internal::{{closure}}::h055e1fdc5578d418
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x55f4d8a4fa33 - std::panicking::try::do_call::h480cafa68c9928b4
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x55f4d8a55f7a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   15:     0x55f4d8a504ed - std::panicking::try::he0549d0299de204a
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x55f4d8a504ed - std::panic::catch_unwind::h422dc2db98f03517
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x55f4d8a504ed - std::rt::lang_start_internal::h121de03325a3f900
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x55f4d89aaec9 - std::rt::lang_start::hafe40359778bc514
[INFO] [stderr]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x55f4d89aa65a - main
[INFO] [stderr]   20:     0x7fa065b052e1 - __libc_start_main
[INFO] [stderr]   21:     0x55f4d89a920a - _start
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "dce920ee491a61c257c1dae48b461c8bf68a5632a5d58210f39e32b494b1a1df"`
[INFO] running `"docker" "rm" "-f" "dce920ee491a61c257c1dae48b461c8bf68a5632a5d58210f39e32b494b1a1df"`
[INFO] [stdout] dce920ee491a61c257c1dae48b461c8bf68a5632a5d58210f39e32b494b1a1df