[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#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHugoKempfer%2Fknn-recommender" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/HugoKempfer/knn-recommender on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-0/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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] c7fd417c915ae9a473659e76aaa8716400903b76c672d937deaebb3978f91196 [INFO] running `Command { std: "docker" "start" "-a" "c7fd417c915ae9a473659e76aaa8716400903b76c672d937deaebb3978f91196", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c7fd417c915ae9a473659e76aaa8716400903b76c672d937deaebb3978f91196", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c7fd417c915ae9a473659e76aaa8716400903b76c672d937deaebb3978f91196", kill_on_drop: false }` [INFO] [stdout] c7fd417c915ae9a473659e76aaa8716400903b76c672d937deaebb3978f91196 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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] eee7ede450b569115ea9d88f3ce4d8de1f14894f7ff2108ec552e2a4026a576e [INFO] running `Command { std: "docker" "start" "-a" "eee7ede450b569115ea9d88f3ce4d8de1f14894f7ff2108ec552e2a4026a576e", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking winapi v0.2.8 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking utf8-ranges v0.1.3 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling rustml v0.0.7 [INFO] [stderr] Checking regex-syntax v0.3.9 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling miniz-sys v0.1.12 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Checking aho-corasick v0.5.3 [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: 0x563afbb5f3fc - std::backtrace_rs::backtrace::libunwind::trace::h2ab374bc2a3b7023 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x563afbb5f3fc - std::backtrace_rs::backtrace::trace_unsynchronized::h128cb5178b04dc46 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x563afbb5f3fc - std::sys_common::backtrace::_print_fmt::h5344f9eefca2041f [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x563afbb5f3fc - ::fmt::h213003bc5c7acf04 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x563afbb7d21c - core::fmt::write::h78bf85fc3e93663f [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/core/src/fmt/mod.rs:1126:17 [INFO] [stderr] 5: 0x563afbb5d165 - std::io::Write::write_fmt::he619515c888f21a5 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/io/mod.rs:1667:15 [INFO] [stderr] 6: 0x563afbb60af0 - std::sys_common::backtrace::_print::hf706674f77848203 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x563afbb60af0 - std::sys_common::backtrace::print::hf0b6c7a88804ec56 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x563afbb60af0 - std::panicking::default_hook::{{closure}}::h2dde766cd83a333a [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:210:50 [INFO] [stderr] 9: 0x563afbb606a7 - std::panicking::default_hook::h501e3b2e134eb149 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x563afbb611a4 - std::panicking::rust_panic_with_hook::hc09e869c4cf00885 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:624:17 [INFO] [stderr] 11: 0x563afbb447fe - std::panicking::begin_panic::{{closure}}::h1826d7f19f64c76b [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:544:9 [INFO] [stderr] 12: 0x563afbb43b7e - std::sys_common::backtrace::__rust_end_short_backtrace::h2b07c62b73566f9d [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x563afbb44704 - std::panicking::begin_panic::hf10d32f62ddb901f [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:543:12 [INFO] [stderr] 14: 0x563afbb45bd7 - 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: 0x563afbb45c5b - 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: 0x563afbb412cb - core::ops::function::FnOnce::call_once::hea1fb211fc6de610 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 17: 0x563afbb43bbe - std::sys_common::backtrace::__rust_begin_short_backtrace::h6a8714edb936a126 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 18: 0x563afbb3fd91 - std::rt::lang_start::{{closure}}::hee3918683a8d63f1 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/rt.rs:64:18 [INFO] [stderr] 19: 0x563afbb616aa - core::ops::function::impls:: for &F>::call_once::hab43eb8ec758341e [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 20: 0x563afbb616aa - std::panicking::try::do_call::hb667fefd650e964d [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:403:40 [INFO] [stderr] 21: 0x563afbb616aa - std::panicking::try::hc279775c9409768d [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:367:19 [INFO] [stderr] 22: 0x563afbb616aa - std::panic::catch_unwind::hbe8b6ecc84f73073 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panic.rs:133:14 [INFO] [stderr] 23: 0x563afbb616aa - std::rt::lang_start_internal::{{closure}}::hb04fdaef496a162b [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/rt.rs:46:48 [INFO] [stderr] 24: 0x563afbb616aa - std::panicking::try::do_call::habca359de051411d [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:403:40 [INFO] [stderr] 25: 0x563afbb616aa - std::panicking::try::h24c556a6948e0937 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panicking.rs:367:19 [INFO] [stderr] 26: 0x563afbb616aa - std::panic::catch_unwind::h58075d47f5a308d8 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/panic.rs:133:14 [INFO] [stderr] 27: 0x563afbb616aa - std::rt::lang_start_internal::h3d20dc1537d76758 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/rt.rs:46:20 [INFO] [stderr] 28: 0x563afbb3fd60 - std::rt::lang_start::hb7d3d5e42237a338 [INFO] [stderr] at /rustc/db1fb85cff63ad5fffe435e17128f99f9e1d970c/library/std/src/rt.rs:63:17 [INFO] [stderr] 29: 0x563afbb45cbc - main [INFO] [stderr] 30: 0x7f6e1586c0b3 - __libc_start_main [INFO] [stderr] 31: 0x563afbb3c73e - _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" "eee7ede450b569115ea9d88f3ce4d8de1f14894f7ff2108ec552e2a4026a576e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eee7ede450b569115ea9d88f3ce4d8de1f14894f7ff2108ec552e2a4026a576e", kill_on_drop: false }` [INFO] [stdout] eee7ede450b569115ea9d88f3ce4d8de1f14894f7ff2108ec552e2a4026a576e