[INFO] cloning repository https://github.com/cantsin/pcgs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cantsin/pcgs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcantsin%2Fpcgs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcantsin%2Fpcgs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d11ad86a8fe9b569980001ad9c92948408fff77c [INFO] checking cantsin/pcgs against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcantsin%2Fpcgs" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cantsin/pcgs on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-9/source/.cargo/config [INFO] started tweaking git repo https://github.com/cantsin/pcgs [INFO] finished tweaking git repo https://github.com/cantsin/pcgs [INFO] tweaked toml for git repo https://github.com/cantsin/pcgs written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/cantsin/pcgs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded utf8-ranges v0.1.3 [INFO] [stderr] Downloaded num-traits v0.2.5 [INFO] [stderr] Downloaded memchr v0.1.11 [INFO] [stderr] Downloaded miniz-sys v0.1.10 [INFO] [stderr] Downloaded thread_local v0.2.7 [INFO] [stderr] Downloaded winapi v0.3.5 [INFO] [stderr] Downloaded rustc-serialize v0.3.24 [INFO] [stderr] Downloaded num v0.1.42 [INFO] [stderr] Downloaded cc v1.0.22 [INFO] [stderr] Downloaded regex-syntax v0.3.9 [INFO] [stderr] Downloaded flate2 v0.2.20 [INFO] [stderr] Downloaded num-iter v0.1.37 [INFO] [stderr] Downloaded num-rational v0.1.42 [INFO] [stderr] Downloaded num-complex v0.1.43 [INFO] [stderr] Downloaded thread-id v2.0.0 [INFO] [stderr] Downloaded num-bigint v0.1.44 [INFO] [stderr] Downloaded aho-corasick v0.5.3 [INFO] [stderr] Downloaded regex v0.1.80 [INFO] [stderr] Downloaded rustml v0.0.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] 96f13795b994fb2f25f5f4704b9dec2a04be2e4b25536c2eddd0e1e1e5466752 [INFO] running `Command { std: "docker" "start" "-a" "96f13795b994fb2f25f5f4704b9dec2a04be2e4b25536c2eddd0e1e1e5466752", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "96f13795b994fb2f25f5f4704b9dec2a04be2e4b25536c2eddd0e1e1e5466752", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "96f13795b994fb2f25f5f4704b9dec2a04be2e4b25536c2eddd0e1e1e5466752", kill_on_drop: false }` [INFO] [stdout] 96f13795b994fb2f25f5f4704b9dec2a04be2e4b25536c2eddd0e1e1e5466752 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc8bc123861fc9246c5eda5cbcdbcbd0833e663f613000a13b9f636cbe702c6f [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" "dc8bc123861fc9246c5eda5cbcdbcbd0833e663f613000a13b9f636cbe702c6f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling num-traits v0.2.5 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling cc v1.0.22 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling rustml v0.0.7 [INFO] [stderr] Checking pcgs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking getopts v0.2.18 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking thread_local v0.2.7 [INFO] [stderr] Checking aho-corasick v0.5.3 [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/sparse_symmetric_matrix.rs:103:9 [INFO] [stdout] | [INFO] [stdout] 103 | writeln!(f, "sparse({:?},...", rows); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/sparse_symmetric_matrix.rs:104:9 [INFO] [stdout] | [INFO] [stdout] 104 | writeln!(f, " {:?},...", columns); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/sparse_row_matrix.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | writeln!(f, "sparse({:?},...", rows); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/sparse_row_matrix.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 87 | writeln!(f, " {:?},...", columns); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking regex v0.1.80 [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-8c8c8bb474ca0db9/build-script-build` (exit code: 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: 0x55de1fb50810 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x55de1fb50810 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55de1fb50810 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x55de1fb50810 - ::fmt::h3834b06f68a2b012 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x55de1fb6e35c - core::fmt::write::h3a043650ba7bf668 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/fmt/mod.rs:1117 [INFO] [stderr] 5: 0x55de1fb4ef25 - std::io::Write::write_fmt::h9c0c8944a1898139 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/io/mod.rs:1510 [INFO] [stderr] 6: 0x55de1fb529b0 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x55de1fb529b0 - std::sys_common::backtrace::print::h213be73e5670b8ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x55de1fb529b0 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x55de1fb526fc - std::panicking::default_hook::hd41fbdeba93207ba [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:219 [INFO] [stderr] 10: 0x55de1fb53013 - std::panicking::rust_panic_with_hook::hcab398664b4bd473 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:569 [INFO] [stderr] 11: 0x55de1fb3873b - std::panicking::begin_panic::{{closure}}::hdbf2cf9e0d236ecd [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:498 [INFO] [stderr] 12: 0x55de1fb32e8e - std::sys_common::backtrace::__rust_end_short_backtrace::h6d2fe44be594297e [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:153 [INFO] [stderr] 13: 0x55de1fb38634 - std::panicking::begin_panic::hb5a52e86304c4f48 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:497 [INFO] [stderr] 14: 0x55de1fb36179 - build_script_build::try_gcc::hc9907f4948415f32 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustml-0.0.7/build.rs:25 [INFO] [stderr] 15: 0x55de1fb36287 - build_script_build::main::h7f76da308167a86e [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustml-0.0.7/build.rs:30 [INFO] [stderr] 16: 0x55de1fb340bb - core::ops::function::FnOnce::call_once::h08030a1a5435a7ae [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/ops/function.rs:233 [INFO] [stderr] 17: 0x55de1fb32ece - std::sys_common::backtrace::__rust_begin_short_backtrace::he5bb54aa1e24c2c2 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:137 [INFO] [stderr] 18: 0x55de1fb364a1 - std::rt::lang_start::{{closure}}::hf12d229bbecef186 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/rt.rs:66 [INFO] [stderr] 19: 0x55de1fb53422 - core::ops::function::impls:: for &F>::call_once::hde9814ae740a85dc [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/ops/function.rs:265 [INFO] [stderr] 20: 0x55de1fb53422 - std::panicking::try::do_call::h3026bab8cd7540d7 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:373 [INFO] [stderr] 21: 0x55de1fb53422 - std::panicking::try::h852bb5e5a66f7f84 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:337 [INFO] [stderr] 22: 0x55de1fb53422 - std::panic::catch_unwind::hfeb0f3dddf7c6a72 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panic.rs:394 [INFO] [stderr] 23: 0x55de1fb53422 - std::rt::lang_start_internal::h32f0ac6e87476559 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/rt.rs:51 [INFO] [stderr] 24: 0x55de1fb36477 - std::rt::lang_start::ha7917097ba444e48 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/rt.rs:65 [INFO] [stderr] 25: 0x55de1fb362fa - main [INFO] [stderr] 26: 0x7fa9645580b3 - __libc_start_main [INFO] [stderr] 27: 0x55de1fb3009e - _start [INFO] [stderr] 28: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "dc8bc123861fc9246c5eda5cbcdbcbd0833e663f613000a13b9f636cbe702c6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc8bc123861fc9246c5eda5cbcdbcbd0833e663f613000a13b9f636cbe702c6f", kill_on_drop: false }` [INFO] [stdout] dc8bc123861fc9246c5eda5cbcdbcbd0833e663f613000a13b9f636cbe702c6f