[INFO] cloning repository https://github.com/section77/airhobot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/section77/airhobot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsection77%2Fairhobot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsection77%2Fairhobot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6c6ad84fd59256e331a355b7d2642eef1ae7a91
[INFO] checking section77/airhobot against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsection77%2Fairhobot" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/section77/airhobot on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/section77/airhobot
[INFO] finished tweaking git repo https://github.com/section77/airhobot
[INFO] tweaked toml for git repo https://github.com/section77/airhobot written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/section77/airhobot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0b159ef6fe569dd81a26edc42c000367ba4123f21870d0cc563bd290a93cd77b
[INFO] running `Command { std: "docker" "start" "-a" "0b159ef6fe569dd81a26edc42c000367ba4123f21870d0cc563bd290a93cd77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b159ef6fe569dd81a26edc42c000367ba4123f21870d0cc563bd290a93cd77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b159ef6fe569dd81a26edc42c000367ba4123f21870d0cc563bd290a93cd77b", kill_on_drop: false }`
[INFO] [stdout] 0b159ef6fe569dd81a26edc42c000367ba4123f21870d0cc563bd290a93cd77b
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 940d12602fd737ec97a67f85e828da79eabd0b07e2f13bfc3aa2b5e6584f8b6c
[INFO] running `Command { std: "docker" "start" "-a" "940d12602fd737ec97a67f85e828da79eabd0b07e2f13bfc3aa2b5e6584f8b6c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking xstd v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rppal v0.11.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling jobserver v0.1.19
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]     Checking stepper v0.1.0 (/opt/rustwide/workdir/stepper)
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling opencv v0.30.1
[INFO] [stderr] error: failed to run custom build command for `opencv v0.30.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/opencv-11c60b53167225e3/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   === Setting up OpenCV library from pkg_config
[INFO] [stderr]   === OpenCV library configuration: Library {
[INFO] [stderr]       pkg_name: "opencv4",
[INFO] [stderr]       libs: [
[INFO] [stderr]           "opencv_stitching",
[INFO] [stderr]           "opencv_aruco",
[INFO] [stderr]           "opencv_bgsegm",
[INFO] [stderr]           "opencv_bioinspired",
[INFO] [stderr]           "opencv_ccalib",
[INFO] [stderr]           "opencv_dnn_objdetect",
[INFO] [stderr]           "opencv_dnn_superres",
[INFO] [stderr]           "opencv_dpm",
[INFO] [stderr]           "opencv_highgui",
[INFO] [stderr]           "opencv_face",
[INFO] [stderr]           "opencv_freetype",
[INFO] [stderr]           "opencv_fuzzy",
[INFO] [stderr]           "opencv_hdf",
[INFO] [stderr]           "opencv_hfs",
[INFO] [stderr]           "opencv_img_hash",
[INFO] [stderr]           "opencv_line_descriptor",
[INFO] [stderr]           "opencv_quality",
[INFO] [stderr]           "opencv_reg",
[INFO] [stderr]           "opencv_rgbd",
[INFO] [stderr]           "opencv_saliency",
[INFO] [stderr]           "opencv_shape",
[INFO] [stderr]           "opencv_stereo",
[INFO] [stderr]           "opencv_structured_light",
[INFO] [stderr]           "opencv_phase_unwrapping",
[INFO] [stderr]           "opencv_superres",
[INFO] [stderr]           "opencv_optflow",
[INFO] [stderr]           "opencv_surface_matching",
[INFO] [stderr]           "opencv_tracking",
[INFO] [stderr]           "opencv_datasets",
[INFO] [stderr]           "opencv_text",
[INFO] [stderr]           "opencv_dnn",
[INFO] [stderr]           "opencv_plot",
[INFO] [stderr]           "opencv_ml",
[INFO] [stderr]           "opencv_videostab",
[INFO] [stderr]           "opencv_videoio",
[INFO] [stderr]           "opencv_viz",
[INFO] [stderr]           "opencv_ximgproc",
[INFO] [stderr]           "opencv_video",
[INFO] [stderr]           "opencv_xobjdetect",
[INFO] [stderr]           "opencv_objdetect",
[INFO] [stderr]           "opencv_calib3d",
[INFO] [stderr]           "opencv_imgcodecs",
[INFO] [stderr]           "opencv_features2d",
[INFO] [stderr]           "opencv_flann",
[INFO] [stderr]           "opencv_xphoto",
[INFO] [stderr]           "opencv_photo",
[INFO] [stderr]           "opencv_imgproc",
[INFO] [stderr]           "opencv_core",
[INFO] [stderr]       ],
[INFO] [stderr]       link_paths: [
[INFO] [stderr]           "/usr/lib/x86_64-linux-gnu",
[INFO] [stderr]       ],
[INFO] [stderr]       framework_paths: [],
[INFO] [stderr]       include_paths: [
[INFO] [stderr]           "/usr/include/opencv4/opencv",
[INFO] [stderr]           "/usr/include/opencv4",
[INFO] [stderr]       ],
[INFO] [stderr]       version: "4.2.0",
[INFO] [stderr]       prefix: "/usr",
[INFO] [stderr]       libdir: "/usr/lib/x86_64-linux-gnu",
[INFO] [stderr]       cargo_metadata: [
[INFO] [stderr]           "cargo:rustc-link-search=native=/usr/lib/x86_64-linux-gnu",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_stitching",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_aruco",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_bgsegm",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_bioinspired",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_ccalib",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_dnn_objdetect",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_dnn_superres",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_dpm",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_highgui",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_face",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_freetype",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_fuzzy",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_hdf",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_hfs",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_img_hash",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_line_descriptor",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_quality",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_reg",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_rgbd",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_saliency",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_shape",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_stereo",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_structured_light",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_phase_unwrapping",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_superres",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_optflow",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_surface_matching",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_tracking",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_datasets",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_text",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_dnn",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_plot",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_ml",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_videostab",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_videoio",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_viz",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_ximgproc",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_video",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_xobjdetect",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_objdetect",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_calib3d",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_imgcodecs",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_features2d",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_flann",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_xphoto",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_photo",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_imgproc",
[INFO] [stderr]           "cargo:rustc-link-lib=opencv_core",
[INFO] [stderr]       ],
[INFO] [stderr]   }
[INFO] [stderr]   === Found OpenCV library version: 4.2.0 in headers located at: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/opencv-0.30.1/headers/4
[INFO] [stderr]   Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "940d12602fd737ec97a67f85e828da79eabd0b07e2f13bfc3aa2b5e6584f8b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "940d12602fd737ec97a67f85e828da79eabd0b07e2f13bfc3aa2b5e6584f8b6c", kill_on_drop: false }`
[INFO] [stdout] 940d12602fd737ec97a67f85e828da79eabd0b07e2f13bfc3aa2b5e6584f8b6c