[INFO] crate evcxr_jupyter 0.3.5 is already in cache
[INFO] extracting crate evcxr_jupyter 0.3.5 into work/ex/beta-1.37-6/sources/1.36.0/reg/evcxr_jupyter/0.3.5
[INFO] extracting crate evcxr_jupyter 0.3.5 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/evcxr_jupyter/0.3.5
[INFO] validating manifest of evcxr_jupyter-0.3.5 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 evcxr_jupyter-0.3.5 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 evcxr_jupyter-0.3.5
[INFO] finished frobbing evcxr_jupyter-0.3.5
[INFO] frobbed toml for evcxr_jupyter-0.3.5 written to work/ex/beta-1.37-6/sources/1.36.0/reg/evcxr_jupyter/0.3.5/Cargo.toml
[INFO] started frobbing evcxr_jupyter-0.3.5
[INFO] finished frobbing evcxr_jupyter-0.3.5
[INFO] frobbed toml for evcxr_jupyter-0.3.5 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/evcxr_jupyter/0.3.5/Cargo.toml
[INFO] crate evcxr_jupyter-0.3.5 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]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing evcxr_jupyter-0.3.5 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/evcxr_jupyter/0.3.5:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ade4d07b700089b48a6cddf7d96230f0aabfd6c219a493908265f84f48df1b1c
[INFO] running `"docker" "start" "-a" "ade4d07b700089b48a6cddf7d96230f0aabfd6c219a493908265f84f48df1b1c"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling json v0.11.13
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling sig v1.0.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling hmac v0.7.0
[INFO] [stderr]    Compiling zmq-sys v0.8.3
[INFO] [stderr] error: failed to run custom build command for `zmq-sys v0.8.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/zmq-sys-9a8d0e14da74af6b/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Unable to locate libzmq:
[INFO] [stderr] `"pkg-config" "--libs" "--cflags" "libzmq >= 3.2"` 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] ', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/zmq-sys-0.8.3/build.rs:31:17
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x558851c915c3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x558851c8d1ab - std::sys_common::backtrace::_print::h49a82ae9552e35c7
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x558851c90436 - std::panicking::default_hook::{{closure}}::he20974adbefcc046
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x558851c901c9 - std::panicking::default_hook::he4af6af4ac7fef7b
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x558851c90a8f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x558851c90611 - std::panicking::continue_panic_fmt::ha6d6ae144369025b
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x558851c9055e - std::panicking::begin_panic_fmt::he54eae869ed71eb1
[INFO] [stderr]                                at src/libstd/panicking.rs:336
[INFO] [stderr]    7:     0x558851beafbd - build_script_build::main::hbb6788e1268f5363
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/zmq-sys-0.8.3/build.rs:31
[INFO] [stderr]    8:     0x558851beb57f - std::rt::lang_start::{{closure}}::hdfedd54a77c7f112
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]    9:     0x558851c904e2 - std::panicking::try::do_call::hc3d8373a0b215f51
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   10:     0x558851c96fc9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   11:     0x558851c90f9c - std::rt::lang_start_internal::he5218c8b95d395f2
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   12:     0x558851beb558 - std::rt::lang_start::hea409fdd94126b10
[INFO] [stderr]                                at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x558851beb319 - main
[INFO] [stderr]   14:     0x7f5f0d8a92e0 - __libc_start_main
[INFO] [stderr]   15:     0x558851be9e49 - _start
[INFO] [stderr]   16:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ade4d07b700089b48a6cddf7d96230f0aabfd6c219a493908265f84f48df1b1c"`
[INFO] running `"docker" "rm" "-f" "ade4d07b700089b48a6cddf7d96230f0aabfd6c219a493908265f84f48df1b1c"`
[INFO] [stdout] ade4d07b700089b48a6cddf7d96230f0aabfd6c219a493908265f84f48df1b1c