[INFO] fetching crate rust_drone_follow 0.6.1...
[INFO] checking rust_drone_follow-0.6.1 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate rust_drone_follow 0.6.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rust_drone_follow 0.6.1 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_drone_follow 0.6.1
[INFO] finished tweaking crates.io crate rust_drone_follow 0.6.1
[INFO] tweaked toml for crates.io crate rust_drone_follow 0.6.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded opencv v0.39.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6da6fcff7d0aab6d6a927a4e628cd701a5505e1b3108d8e73aa182551d90bd85
[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" "6da6fcff7d0aab6d6a927a4e628cd701a5505e1b3108d8e73aa182551d90bd85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6da6fcff7d0aab6d6a927a4e628cd701a5505e1b3108d8e73aa182551d90bd85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da6fcff7d0aab6d6a927a4e628cd701a5505e1b3108d8e73aa182551d90bd85", kill_on_drop: false }`
[INFO] [stdout] 6da6fcff7d0aab6d6a927a4e628cd701a5505e1b3108d8e73aa182551d90bd85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5cc5c18281f5822167c86ba6d9e4a1af0cd3f5c9fec9ff33efde697ac961fdc
[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" "a5cc5c18281f5822167c86ba6d9e4a1af0cd3f5c9fec9ff33efde697ac961fdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcpkg v0.2.10
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling opencv v0.39.0
[INFO] [stderr] error: failed to run custom build command for `opencv v0.39.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/opencv-dbdcf93cfe35784f/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=OPENCV4_NO_PKG_CONFIG
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG
[INFO] [stderr]   cargo:rerun-if-env-changed=OPENCV4_STATIC
[INFO] [stderr]   cargo:rerun-if-env-changed=OPENCV4_DYNAMIC
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-unknown-linux-gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_unknown_linux_gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_PATH
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64-unknown-linux-gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_unknown_linux_gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64-unknown-linux-gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_unknown_linux_gnu
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR
[INFO] [stderr]   cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   === Crate version: Some("0.39.0")
[INFO] [stderr]   === Environment configuration:
[INFO] [stderr]   ===   OPENCV_HEADER_DIR = None
[INFO] [stderr]   ===   OPENCV_PACKAGE_NAME = None
[INFO] [stderr]   ===   OPENCV_PKGCONFIG_NAME = None
[INFO] [stderr]   ===   OPENCV_CMAKE_NAME = None
[INFO] [stderr]   ===   OPENCV_CMAKE_BIN = None
[INFO] [stderr]   ===   OPENCV_VCPKG_NAME = None
[INFO] [stderr]   ===   OPENCV_LINK_LIBS = None
[INFO] [stderr]   ===   OPENCV_LINK_PATHS = None
[INFO] [stderr]   ===   OPENCV_INCLUDE_PATHS = None
[INFO] [stderr]   ===   OPENCV_DISABLE_PROBES = None
[INFO] [stderr]   ===   OPENCV_CLANG_STDLIB_PATH = None
[INFO] [stderr]   ===   CMAKE_PREFIX_PATH = None
[INFO] [stderr]   ===   OpenCV_DIR = None
[INFO] [stderr]   ===   PKG_CONFIG_PATH = None
[INFO] [stderr]   ===   VCPKG_ROOT = None
[INFO] [stderr]   === Enabled features:
[INFO] [stderr]   ===   DEFAULT
[INFO] [stderr]   ===   OPENCV_4
[INFO] [stderr]   === Probing OpenCV library using pkg_config
[INFO] [stderr]   === Can't probe using pkg_config, continuing with other methods, error: `"pkg-config" "--libs" "--cflags" "opencv4"` did not exit successfully: exit code: 1
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Package opencv4 was not found in the pkg-config search path.
[INFO] [stderr]   Perhaps you should add the directory containing `opencv4.pc'
[INFO] [stderr]   to the PKG_CONFIG_PATH environment variable
[INFO] [stderr]   No package 'opencv4' found
[INFO] [stderr] 
[INFO] [stderr]   === Probing OpenCV library using cmake
[INFO] [stderr]   === Can't probe using cmake, continuing with other methods, error: cmake returned an error
[INFO] [stderr]       stdout: "OpenCV not found.\n"
[INFO] [stderr]       stderr: "CMake Error: Problem processing arguments. Aborting.\n\n"
[INFO] [stderr]   === Probing OpenCV library using vcpkg
[INFO] [stderr]   === Can't probe using vcpkg, continuing with other methods, error: Could not find Vcpkg tree: No vcpkg installation found. Set the VCPKG_ROOT environment variable or run 'vcpkg integrate install'
[INFO] [stderr]   Error: "Failed to find OpenCV package using probes: pkg_config, cmake, vcpkg"
[INFO] running `Command { std: "docker" "inspect" "a5cc5c18281f5822167c86ba6d9e4a1af0cd3f5c9fec9ff33efde697ac961fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5cc5c18281f5822167c86ba6d9e4a1af0cd3f5c9fec9ff33efde697ac961fdc", kill_on_drop: false }`
[INFO] [stdout] a5cc5c18281f5822167c86ba6d9e4a1af0cd3f5c9fec9ff33efde697ac961fdc