[INFO] updating cached repository https://github.com/DanSnow/rust-cap-ng-sys
[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] caa123578d33ec11ff66844374718750d9ae569c
[INFO] checking DanSnow/rust-cap-ng-sys against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanSnow%2Frust-cap-ng-sys" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DanSnow/rust-cap-ng-sys on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/DanSnow/rust-cap-ng-sys
[INFO] finished tweaking git repo https://github.com/DanSnow/rust-cap-ng-sys
[INFO] tweaked toml for git repo https://github.com/DanSnow/rust-cap-ng-sys written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/DanSnow/rust-cap-ng-sys already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "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] ea99576a4dc08723c14177076b2b23b0fe5de6bbdb863ebc3ab1ef06270d6b48
[INFO] running `"docker" "start" "-a" "ea99576a4dc08723c14177076b2b23b0fe5de6bbdb863ebc3ab1ef06270d6b48"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cap-ng-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `cap-ng-sys v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/cap-ng-sys-85fa96d64192bec9/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Failure { command: "\"pkg-config\" \"--libs\" \"--cflags\" \"libcap-ng\" \"libcap-ng >= 0.7.0\"", output: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "Package libcap-ng was not found in the pkg-config search path.\nPerhaps you should add the directory containing `libcap-ng.pc\'\nto the PKG_CONFIG_PATH environment variable\nNo package \'libcap-ng\' found\nPackage libcap-ng was not found in the pkg-config search path.\nPerhaps you should add the directory containing `libcap-ng.pc\'\nto the PKG_CONFIG_PATH environment variable\nNo package \'libcap-ng\' found\n" } }', build.rs:6:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56541cc19444 - backtrace::backtrace::libunwind::trace::hda902e3a4eb9d449
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x56541cc19444 - backtrace::backtrace::trace_unsynchronized::h06df0062bb63b7e2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56541cc19444 - std::sys_common::backtrace::_print_fmt::ha5249daf78f399e8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x56541cc19444 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h68243ef2eafa8843
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x56541cc3ccec - core::fmt::write::h8b50d07b82ae3922
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x56541cc16833 - std::io::Write::write_fmt::h9a5b9a212b705549
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x56541cc1ba95 - std::sys_common::backtrace::_print::hcd11fe8eb9e7335d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x56541cc1ba95 - std::sys_common::backtrace::print::h475286256f91474c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x56541cc1ba95 - std::panicking::default_hook::{{closure}}::h2a45e9d6ef27161b
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x56541cc1b7d2 - std::panicking::default_hook::h76adec688b27abdd
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x56541cc1c0a2 - std::panicking::rust_panic_with_hook::h121f4f2c52efbcbf
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x56541cc1bc8b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x56541cc3c0d1 - core::panicking::panic_fmt::hee64f597d93665b6
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x56541cc3bef3 - core::option::expect_none_failed::h90fed74f6e49bf90
[INFO] [stderr]                                at src/libcore/option.rs:1268
[INFO] [stderr]   14:     0x56541cbdef40 - core::result::Result<T,E>::unwrap::hd1cf1ed9b5f711e7
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libcore/result.rs:1005
[INFO] [stderr]   15:     0x56541cbdee27 - build_script_build::main::h474061bcd453c99d
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:6
[INFO] [stderr]   16:     0x56541cbdf03b - std::rt::lang_start::{{closure}}::h870c40f1f4925269
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x56541cc1c4e8 - std::rt::lang_start_internal::{{closure}}::h15b56bd7f81214ad
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x56541cc1c4e8 - std::panicking::try::do_call::hbe8467da291bc822
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   19:     0x56541cc1c4e8 - std::panicking::try::hde3b5cbc6989304d
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x56541cc1c4e8 - std::panic::catch_unwind::h56844acb323fdd6c
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x56541cc1c4e8 - std::rt::lang_start_internal::hae379591a9420b87
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x56541cbdf017 - std::rt::lang_start::ha4377b65b308987a
[INFO] [stderr]                                at /rustc/bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x56541cbdee8a - main
[INFO] [stderr]   24:     0x7fa31ee98b97 - __libc_start_main
[INFO] [stderr]   25:     0x56541cbdecaa - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ea99576a4dc08723c14177076b2b23b0fe5de6bbdb863ebc3ab1ef06270d6b48"`
[INFO] running `"docker" "rm" "-f" "ea99576a4dc08723c14177076b2b23b0fe5de6bbdb863ebc3ab1ef06270d6b48"`
[INFO] [stdout] ea99576a4dc08723c14177076b2b23b0fe5de6bbdb863ebc3ab1ef06270d6b48
