[INFO] updating cached repository quadrupleslap/srs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/quadrupleslap/srs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/quadrupleslap/srs" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/quadrupleslap/srs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/quadrupleslap/srs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/quadrupleslap/srs" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/quadrupleslap/srs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/quadrupleslap/srs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ee32d68928fb16b631ecce09f758cc58b2857d2f
[INFO] sha for GitHub repo quadrupleslap/srs: ee32d68928fb16b631ecce09f758cc58b2857d2f
[INFO] validating manifest of quadrupleslap/srs on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of quadrupleslap/srs on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing quadrupleslap/srs
[INFO] finished frobbing quadrupleslap/srs
[INFO] frobbed toml for quadrupleslap/srs written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/quadrupleslap/srs/Cargo.toml
[INFO] started frobbing quadrupleslap/srs
[INFO] finished frobbing quadrupleslap/srs
[INFO] frobbed toml for quadrupleslap/srs written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/quadrupleslap/srs/Cargo.toml
[INFO] crate quadrupleslap/srs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking quadrupleslap/srs against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-6/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/quadrupleslap/srs:/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=forbid" "-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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1dfb8a3722305104172ccaf849ab15de9d82b514718d85a00338863cacc8d708
[INFO] running `"docker" "start" "-a" "1dfb8a3722305104172ccaf849ab15de9d82b514718d85a00338863cacc8d708"`
[INFO] [stderr]    Compiling scrap v0.5.0
[INFO] [stderr]     Checking block v0.1.6
[INFO] [stderr]     Checking sample v0.10.0
[INFO] [stderr]    Compiling opus-sys v0.2.1
[INFO] [stderr]    Compiling webm-sys v1.0.0
[INFO] [stderr]     Checking termios v0.3.0
[INFO] [stderr]     Checking rpassword v2.0.0
[INFO] [stderr]    Compiling libvpx-native-sys v4.0.7
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking docopt v1.0.0
[INFO] [stderr]     Checking quest v0.2.0
[INFO] [stderr] error: failed to run custom build command for `libvpx-native-sys v4.0.7`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/libvpx-native-sys-49db7e3c62116473/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\" \"vpx\"", output: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "Package vpx was not found in the pkg-config search path.\nPerhaps you should add the directory containing `vpx.pc\'\nto the PKG_CONFIG_PATH environment variable\nNo package \'vpx\' found\n" } }', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5591854e602b - backtrace::backtrace::libunwind::trace::hc5a758871b6ebf05
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x5591854e602b - backtrace::backtrace::trace_unsynchronized::hdad9729cc53c45f3
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5591854e602b - std::sys_common::backtrace::_print::hccf66646430a9cbc
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x5591854e602b - std::sys_common::backtrace::print::h6c902507aa1c61bf
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x5591854e602b - std::panicking::default_hook::{{closure}}::hc0c79151a0a4b58f
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x5591854e5d07 - std::panicking::default_hook::hfd408bb664bf319a
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x5591854e66f0 - std::panicking::rust_panic_with_hook::hb2d4371b6afbe17a
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x5591854e6272 - std::panicking::continue_panic_fmt::h6eef1f2d6e3abc2b
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x5591854e6156 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x559185500efd - core::panicking::panic_fmt::h9f3781beea83a294
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55918548a003 - core::result::unwrap_failed::hf87ff7a6745394b5
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libcore/macros.rs:18
[INFO] [stderr]   11:     0x55918548a85c - core::result::Result<T,E>::unwrap::h524961f18b752dee
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libcore/result.rs:800
[INFO] [stderr]   12:     0x559185484f22 - build_script_build::main::hf1cdd05a4bcca457
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/libvpx-native-sys-4.0.7/build.rs:21
[INFO] [stderr]   13:     0x5591854899f0 - std::rt::lang_start::{{closure}}::h67aa98eba881d419
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x5591854e6143 - std::rt::lang_start_internal::{{closure}}::h86569d7197572496
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x5591854e6143 - std::panicking::try::do_call::hc05ef3c0bbb0a2c9
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x5591854ed9ea - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   17:     0x5591854e6bfd - std::panicking::try::h5f7f6728fc93999f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x5591854e6bfd - std::panic::catch_unwind::h9120cbd852b844f2
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   19:     0x5591854e6bfd - std::rt::lang_start_internal::h20e51e71516fa081
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x5591854899c9 - std::rt::lang_start::h5360d6b8cbdc75f2
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x5591854871ea - main
[INFO] [stderr]   22:     0x7f4dd717b2e1 - __libc_start_main
[INFO] [stderr]   23:     0x559185484c4a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1dfb8a3722305104172ccaf849ab15de9d82b514718d85a00338863cacc8d708"`
[INFO] running `"docker" "rm" "-f" "1dfb8a3722305104172ccaf849ab15de9d82b514718d85a00338863cacc8d708"`
[INFO] [stdout] 1dfb8a3722305104172ccaf849ab15de9d82b514718d85a00338863cacc8d708