[INFO] fetching crate verne 0.1.0...
[INFO] testing verne-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate verne 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate verne 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate verne 0.1.0
[INFO] finished tweaking crates.io crate verne 0.1.0
[INFO] tweaked toml for crates.io crate verne 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded virt v0.2.11
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 5d00ab3131b2b014786e0bc35551b25751f411158c0975c17bc85ec42ba9a890
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5d00ab3131b2b014786e0bc35551b25751f411158c0975c17bc85ec42ba9a890"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling virt v0.2.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling verne v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `vcpus`
[INFO] [stderr]   --> src/libvirt.rs:54:18
[INFO] [stderr]    |
[INFO] [stderr] 54 |                  ref vcpus,
[INFO] [stderr]    |                  ^^^^^^^^^ help: try ignoring the field: `vcpus: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]   --> src/libvirt.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |                  ref memory,
[INFO] [stderr]    |                  ^^^^^^^^^^ help: try ignoring the field: `memory: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/libvirt.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 dom.destroy();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/libvirt.rs:126:21
[INFO] [stderr]     |
[INFO] [stderr] 126 |                     dom.undefine();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/libvirt.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 dom.free();
[INFO] [stderr]     |                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.verne.9np0vn3s-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6" "/opt/rustwide/target/debug/deps/verne-3cafecda1201bdf6.2jp66qcq2vzb8sek.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libverne-0455fd1e2b7a015a.rlib" "/opt/rustwide/target/debug/deps/libvirt-6ea690a9796d4d2b.rlib" "/opt/rustwide/target/debug/deps/liblibc-2e17c5c99334ee98.rlib" "/opt/rustwide/target/debug/deps/libyaml_rust-f8177ab548caace6.rlib" "/opt/rustwide/target/debug/deps/libgetopts-efd928e7ebdb8ec1.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-f2de9f6717fae86f.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-775197088ca4b7b6.rlib" "/opt/rustwide/target/debug/deps/libregex-633ba68a0731f93e.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-7892513b60c771f1.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-43f5652db6007dc5.rlib" "/opt/rustwide/target/debug/deps/libucd_util-1f813f73804b0485.rlib" "/opt/rustwide/target/debug/deps/libthread_local-c818e360ff3bdad8.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-36bd8bbfaaa85bd1.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-10e9bc08bd622c96.rlib" "/opt/rustwide/target/debug/deps/libmemchr-879a03a48fb42e91.rlib" "/opt/rustwide/target/debug/deps/liblog-38f6b2d55fcb84f2.rlib" "/opt/rustwide/target/debug/deps/liblog-3d65ebee37a7b6c8.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-0d7329a98a9ffead.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lutil" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           /usr/bin/ld: cannot find -lvirt
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `verne`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5d00ab3131b2b014786e0bc35551b25751f411158c0975c17bc85ec42ba9a890"`
[INFO] running `"docker" "rm" "-f" "5d00ab3131b2b014786e0bc35551b25751f411158c0975c17bc85ec42ba9a890"`
[INFO] [stdout] 5d00ab3131b2b014786e0bc35551b25751f411158c0975c17bc85ec42ba9a890