[INFO] fetching crate libv4l-sys 0.2.2...
[INFO] checking libv4l-sys-0.2.2 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate libv4l-sys 0.2.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate libv4l-sys 0.2.2 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking crates.io crate libv4l-sys 0.2.2
[INFO] finished tweaking crates.io crate libv4l-sys 0.2.2
[INFO] tweaked toml for crates.io crate libv4l-sys 0.2.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate libv4l-sys 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hermit-abi v0.1.8
[INFO] [stderr]   Downloaded winapi-util v0.1.3
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded regex-syntax v0.6.16
[INFO] [stderr]   Downloaded aho-corasick v0.7.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99d4cc6974240f7632b9bf4bfd20556cc23aadd8ea30419701ba484fc1535d7b
[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" "99d4cc6974240f7632b9bf4bfd20556cc23aadd8ea30419701ba484fc1535d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99d4cc6974240f7632b9bf4bfd20556cc23aadd8ea30419701ba484fc1535d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d4cc6974240f7632b9bf4bfd20556cc23aadd8ea30419701ba484fc1535d7b", kill_on_drop: false }`
[INFO] [stdout] 99d4cc6974240f7632b9bf4bfd20556cc23aadd8ea30419701ba484fc1535d7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae246220c596a1800e5b6ef2b40049b85960b8a6290a50b109c646992e3488d4
[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" "ae246220c596a1800e5b6ef2b40049b85960b8a6290a50b109c646992e3488d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.16
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling libv4l-sys v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `libv4l-sys v0.2.2 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libv4l-sys-e824a204fd7bcbc5/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\" \"libv4l2\"", output: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "Package libv4l2 was not found in the pkg-config search path.\nPerhaps you should add the directory containing `libv4l2.pc\'\nto the PKG_CONFIG_PATH environment variable\nNo package \'libv4l2\' found\n" } }', build.rs:7:55
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56401470db20 - std::backtrace_rs::backtrace::libunwind::trace::h14e81b0c16b543a7
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x56401470db20 - std::backtrace_rs::backtrace::trace_unsynchronized::hc9e39e172835ff32
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x56401470db20 - std::sys_common::backtrace::_print_fmt::h31994df1c8c77b8f
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x56401470db20 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he74e98acff43ec99
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x564014732ccc - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x56401470a407 - std::io::Write::write_fmt::hea6289e6649ff508
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x56401470ff90 - std::sys_common::backtrace::_print::h8cc65937fea24014
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x56401470ff90 - std::sys_common::backtrace::print::hff6a0ebb96535e34
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x56401470ff90 - std::panicking::default_hook::{{closure}}::h71b9700c5dda1b1d
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x56401470fcdc - std::panicking::default_hook::h0c46e634c06c69b6
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x5640147105f3 - std::panicking::rust_panic_with_hook::he52576a0c2093334
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x5640147101c9 - std::panicking::begin_panic_handler::{{closure}}::h411c800b810762b2
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x56401470dfac - std::sys_common::backtrace::__rust_end_short_backtrace::ha657a272019e6aad
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x564014710189 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x5640147312d1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x5640147310f3 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/option.rs:1221
[INFO] [stderr]     16:     0x564014178e9a - core::result::Result<T,E>::unwrap::h6d421ed7395b648b
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/result.rs:973
[INFO] [stderr]     17:     0x564014178f8a - build_script_build::main::h894427cdf1fe51f9
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:7
[INFO] [stderr]     18:     0x56401417c23b - core::ops::function::FnOnce::call_once::h81c9ace676a09581
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x5640141782ee - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f6f9882fc5de784
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x564014177df1 - std::rt::lang_start::{{closure}}::h1cde0015d7cbc04f
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x5640147109f1 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h009d20b8a620bf60
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x5640147109f1 - std::panicking::try::do_call::h09431c39e2107c90
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x5640147109f1 - std::panicking::try::he27cf60b958af343
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x5640147109f1 - std::panic::catch_unwind::h7b646b0041dc5591
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x5640147109f1 - std::rt::lang_start_internal::hdad6c98af1e4747e
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x564014177dc7 - std::rt::lang_start::hcf7e35cb04d96403
[INFO] [stderr]                                  at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x56401417982a - main
[INFO] [stderr]     28:     0x7f04b56c90b3 - __libc_start_main
[INFO] [stderr]     29:     0x5640141770ce - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "ae246220c596a1800e5b6ef2b40049b85960b8a6290a50b109c646992e3488d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae246220c596a1800e5b6ef2b40049b85960b8a6290a50b109c646992e3488d4", kill_on_drop: false }`
[INFO] [stdout] ae246220c596a1800e5b6ef2b40049b85960b8a6290a50b109c646992e3488d4