[INFO] updating cached repository whitequark/rust-facedetect
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/whitequark/rust-facedetect
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/whitequark/rust-facedetect" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/whitequark/rust-facedetect"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/whitequark/rust-facedetect'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/whitequark/rust-facedetect" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/whitequark/rust-facedetect"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/whitequark/rust-facedetect'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] abbc55bc90017db4237e983f995c3a6f5a6a2d38
[INFO] sha for GitHub repo whitequark/rust-facedetect: abbc55bc90017db4237e983f995c3a6f5a6a2d38
[INFO] validating manifest of whitequark/rust-facedetect on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of whitequark/rust-facedetect on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing whitequark/rust-facedetect
[INFO] finished frobbing whitequark/rust-facedetect
[INFO] frobbed toml for whitequark/rust-facedetect written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/whitequark/rust-facedetect/Cargo.toml
[INFO] started frobbing whitequark/rust-facedetect
[INFO] finished frobbing whitequark/rust-facedetect
[INFO] frobbed toml for whitequark/rust-facedetect written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/whitequark/rust-facedetect/Cargo.toml
[INFO] crate whitequark/rust-facedetect already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/whitequark/rust-facedetect/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `git://github.com/whitequark/opencv-rust`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `git://github.com/whitequark/opencv-rust`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking whitequark/rust-facedetect against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-6/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/whitequark/rust-facedetect:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 07fc56407e2b13fcbf8dcc549bb80e2be97bf968d5c3f44894e697e6e40fdc45
[INFO] running `"docker" "start" "-a" "07fc56407e2b13fcbf8dcc549bb80e2be97bf968d5c3f44894e697e6e40fdc45"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling opencv v0.0.1 (git://github.com/whitequark/opencv-rust#e39c942d)
[INFO] [stderr] error: failed to run custom build command for `opencv v0.0.1 (git://github.com/whitequark/opencv-rust#e39c942d)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/opencv-a9a7080c3d71db6c/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: "`\"pkg-config\" \"--libs\" \"--cflags\" \"opencv\"` did not exit successfully: exit code: 1\n--- stderr\nPackage opencv was not found in the pkg-config search path.\nPerhaps you should add the directory containing `opencv.pc\'\nto the PKG_CONFIG_PATH environment variable\nNo package \'opencv\' found\n"', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x556c8353c2e3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hb4e030b29f98d86f
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x556c83537e7b - std::sys_common::backtrace::_print::h44872227d8b770d4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x556c8353b076 - std::panicking::default_hook::{{closure}}::hd181a7e0ad3700ab
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x556c8353ae0b - std::panicking::default_hook::h0b98855e63e3b4cb
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x556c8353b72f - std::panicking::rust_panic_with_hook::ha323ba5aa88f36f2
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x556c8353b2b1 - std::panicking::continue_panic_fmt::h240b5680b02e1846
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x556c8353b195 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x556c8355329c - core::panicking::panic_fmt::hce68576b79e551c9
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x556c8346c046 - core::result::unwrap_failed::hc2dff53cb14626e9
[INFO] [stderr]                                at /rustc/58b21121d0b447ceb3f1a655155d802191acf044/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x556c8346c1c7 - core::result::Result<T,E>::unwrap::h0ca72b1e3d69bb28
[INFO] [stderr]                                at /rustc/58b21121d0b447ceb3f1a655155d802191acf044/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x556c83462145 - build_script_build::main::h079f940cd53e4a74
[INFO] [stderr]                                at /opt/crater/cargo-home/git/checkouts/opencv-rust-61beeb0ebabfb488/e39c942/build.rs:16
[INFO] [stderr]   11:     0x556c8346848f - std::rt::lang_start::{{closure}}::hee64c6f76f199338
[INFO] [stderr]                                at /rustc/58b21121d0b447ceb3f1a655155d802191acf044/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x556c8353b182 - std::panicking::try::do_call::he7eba20f8beb30e4
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   13:     0x556c83544129 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x556c8353bc3c - std::rt::lang_start_internal::hedb14d415182a710
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   15:     0x556c83468468 - std::rt::lang_start::he1898e9bc9f3fe03
[INFO] [stderr]                                at /rustc/58b21121d0b447ceb3f1a655155d802191acf044/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x556c834669a9 - main
[INFO] [stderr]   17:     0x7f2d61f162e0 - __libc_start_main
[INFO] [stderr]   18:     0x556c83461f09 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "07fc56407e2b13fcbf8dcc549bb80e2be97bf968d5c3f44894e697e6e40fdc45"`
[INFO] running `"docker" "rm" "-f" "07fc56407e2b13fcbf8dcc549bb80e2be97bf968d5c3f44894e697e6e40fdc45"`
[INFO] [stdout] 07fc56407e2b13fcbf8dcc549bb80e2be97bf968d5c3f44894e697e6e40fdc45