[INFO] cloning repository https://github.com/HugoKempfer/knn-recommender [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HugoKempfer/knn-recommender" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoKempfer%2Fknn-recommender", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoKempfer%2Fknn-recommender'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4b10654bc61b6ab218d76df07eb726f03f244cd7 [INFO] checking HugoKempfer/knn-recommender against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoKempfer%2Fknn-recommender" "/workspace/builds/worker-49/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-49/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/HugoKempfer/knn-recommender on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/HugoKempfer/knn-recommender [INFO] finished tweaking git repo https://github.com/HugoKempfer/knn-recommender [INFO] tweaked toml for git repo https://github.com/HugoKempfer/knn-recommender written to /workspace/builds/worker-49/source/Cargo.toml [INFO] crate git repo https://github.com/HugoKempfer/knn-recommender already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cc v1.0.63 [INFO] [stderr] Downloaded rustml v0.0.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8d5e837254e2201ff75c6fd2af2ab89fe853ef572997dcd1726800c00cdd7b2a [INFO] running `Command { std: "docker" "start" "-a" "8d5e837254e2201ff75c6fd2af2ab89fe853ef572997dcd1726800c00cdd7b2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8d5e837254e2201ff75c6fd2af2ab89fe853ef572997dcd1726800c00cdd7b2a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d5e837254e2201ff75c6fd2af2ab89fe853ef572997dcd1726800c00cdd7b2a", kill_on_drop: false }` [INFO] [stdout] 8d5e837254e2201ff75c6fd2af2ab89fe853ef572997dcd1726800c00cdd7b2a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0a85227d4313ea223411b2f0abbef5f0185a7491ceb4144eade3f257f0dd212 [INFO] running `Command { std: "docker" "start" "-a" "d0a85227d4313ea223411b2f0abbef5f0185a7491ceb4144eade3f257f0dd212", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling cc v1.0.63 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling rustml v0.0.7 [INFO] [stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Checking regex-syntax v0.3.9 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] error: failed to run custom build command for `rustml v0.0.7` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/rustml-b5cf72089cab6e68/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] /usr/bin/ld: cannot find -lopencv_highgui [INFO] [stderr] collect2: error: ld returned 1 exit status [INFO] [stderr] thread 'main' panicked at ' [INFO] [stderr] [INFO] [stderr] OpenCV not found. On Ubuntu try 'sudo apt-get install libopencv-highgui-dev' before continuing.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustml-0.0.7/build.rs:25:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55de8268b49c - std::backtrace_rs::backtrace::libunwind::trace::ha21b6ba3016b6364 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x55de8268b49c - std::backtrace_rs::backtrace::trace_unsynchronized::hf515241a118c4e5a [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55de8268b49c - std::sys_common::backtrace::_print_fmt::h339cd474d88b8467 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x55de8268b49c - ::fmt::h06b8f714a0700be1 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x55de826a790c - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/core/src/fmt/mod.rs:1117:17 [INFO] [stderr] 5: 0x55de82689355 - std::io::Write::write_fmt::hb1c61d571fcd8cbf [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/io/mod.rs:1667:15 [INFO] [stderr] 6: 0x55de8268cb80 - std::sys_common::backtrace::_print::hcd1fe1237ea0c752 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x55de8268cb80 - std::sys_common::backtrace::print::hae7d6625a78cd32e [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x55de8268cb80 - std::panicking::default_hook::{{closure}}::h9a7fffa4e6b396ed [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:210:50 [INFO] [stderr] 9: 0x55de8268c73b - std::panicking::default_hook::h5dc58e323cddd123 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x55de8268d234 - std::panicking::rust_panic_with_hook::hbef17e4338d7de57 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:624:17 [INFO] [stderr] 11: 0x55de8267081e - std::panicking::begin_panic::{{closure}}::h00277e7d87515e13 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:544:9 [INFO] [stderr] 12: 0x55de8267064e - std::sys_common::backtrace::__rust_end_short_backtrace::hffea522c2bb53393 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x55de82670724 - std::panicking::begin_panic::h8ba7312b82aed14b [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:543:12 [INFO] [stderr] 14: 0x55de82671c6f - build_script_build::try_gcc::h36404b2aea69e25c [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustml-0.0.7/build.rs:25:5 [INFO] [stderr] 15: 0x55de82671cfb - build_script_build::main::h890e0be183038796 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustml-0.0.7/build.rs:30:5 [INFO] [stderr] 16: 0x55de8266d17b - core::ops::function::FnOnce::call_once::hbbeb8b4de714d215 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 17: 0x55de8267068e - std::sys_common::backtrace::__rust_begin_short_backtrace::h7851421a555e9b5b [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 18: 0x55de8266ce21 - std::rt::lang_start::{{closure}}::hb076da241a19f929 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/rt.rs:63:18 [INFO] [stderr] 19: 0x55de8268d73a - core::ops::function::impls:: for &F>::call_once::hc9bc8961e4809a14 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 20: 0x55de8268d73a - std::panicking::try::do_call::h6f00e12df2af6579 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:403:40 [INFO] [stderr] 21: 0x55de8268d73a - std::panicking::try::h588c31a0a9a8ad2c [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:367:19 [INFO] [stderr] 22: 0x55de8268d73a - std::panic::catch_unwind::h8ebc4fcb0e51bec0 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panic.rs:129:14 [INFO] [stderr] 23: 0x55de8268d73a - std::rt::lang_start_internal::{{closure}}::had93e50fbfd893a1 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/rt.rs:45:48 [INFO] [stderr] 24: 0x55de8268d73a - std::panicking::try::do_call::hf70c5056d8b410b7 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:403:40 [INFO] [stderr] 25: 0x55de8268d73a - std::panicking::try::h0c680320de5deb84 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panicking.rs:367:19 [INFO] [stderr] 26: 0x55de8268d73a - std::panic::catch_unwind::h7b94a99f13366c53 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/panic.rs:129:14 [INFO] [stderr] 27: 0x55de8268d73a - std::rt::lang_start_internal::hca14fb2549072049 [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/rt.rs:45:20 [INFO] [stderr] 28: 0x55de8266cdf0 - std::rt::lang_start::h179469eaf2828e6b [INFO] [stderr] at /rustc/33fdb797f59421c7bbecaa4588ed5d7a31a9494a/library/std/src/rt.rs:62:5 [INFO] [stderr] 29: 0x55de82671d5c - main [INFO] [stderr] 30: 0x7f6cf4ebc0b3 - __libc_start_main [INFO] [stderr] 31: 0x55de8266878e - _start [INFO] [stderr] 32: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "d0a85227d4313ea223411b2f0abbef5f0185a7491ceb4144eade3f257f0dd212", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0a85227d4313ea223411b2f0abbef5f0185a7491ceb4144eade3f257f0dd212", kill_on_drop: false }` [INFO] [stdout] d0a85227d4313ea223411b2f0abbef5f0185a7491ceb4144eade3f257f0dd212