[INFO] fetching crate verne 0.1.0...
[INFO] testing verne-0.1.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate verne 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate verne 0.1.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded virt v0.2.11
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a3333bef7f207ca91fb0fbbbc04578bb7b8a0dbed61fc604f27fac7eb59f30a
[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" "9a3333bef7f207ca91fb0fbbbc04578bb7b8a0dbed61fc604f27fac7eb59f30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a3333bef7f207ca91fb0fbbbc04578bb7b8a0dbed61fc604f27fac7eb59f30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a3333bef7f207ca91fb0fbbbc04578bb7b8a0dbed61fc604f27fac7eb59f30a", kill_on_drop: false }`
[INFO] [stdout] 9a3333bef7f207ca91fb0fbbbc04578bb7b8a0dbed61fc604f27fac7eb59f30a
[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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09c7bc4606ad59579d1204e82916d2476cf5a2d6ee90923f91fba4d745645ef1
[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" "09c7bc4606ad59579d1204e82916d2476cf5a2d6ee90923f91fba4d745645ef1", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.8
[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 aho-corasick v0.6.10
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling virt v0.2.11
[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] [stdout] warning: unused variable: `vcpus`
[INFO] [stdout]   --> src/libvirt.rs:54:18
[INFO] [stdout]    |
[INFO] [stdout] 54 |                  ref vcpus,
[INFO] [stdout]    |                  ^^^^^^^^^ help: try ignoring the field: `vcpus: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]   --> src/libvirt.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |                  ref memory,
[INFO] [stdout]    |                  ^^^^^^^^^^ help: try ignoring the field: `memory: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/libvirt.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 dom.destroy();
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/libvirt.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     dom.undefine();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/libvirt.rs:128:17
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 dom.free();
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.verne.ddlxtu15-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34" "/opt/rustwide/target/debug/deps/verne-91bfcae31d86bb34.2qusv8zj68t3idir.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libverne-fe49ea437178edad.rlib" "/opt/rustwide/target/debug/deps/libvirt-25b6f9cba3963eeb.rlib" "/opt/rustwide/target/debug/deps/liblibc-e52aab25f5d90c7e.rlib" "/opt/rustwide/target/debug/deps/libyaml_rust-110878fe23d3ee81.rlib" "/opt/rustwide/target/debug/deps/libgetopts-e26ccd4052155def.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-205a394572a8e7c4.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-d2cde49c083626d7.rlib" "/opt/rustwide/target/debug/deps/libregex-387afda628cd1834.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-be40cb5dc3f0ecb6.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-5ac0967dc3296fed.rlib" "/opt/rustwide/target/debug/deps/libucd_util-84c9c8f4a23971c2.rlib" "/opt/rustwide/target/debug/deps/libthread_local-5aeca77422c2c02a.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-03dc560a77c5aa3e.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-473ee681a3e974c4.rlib" "/opt/rustwide/target/debug/deps/libmemchr-a7cb47f5520eb97c.rlib" "/opt/rustwide/target/debug/deps/liblog-61b6b7789e2ddc7f.rlib" "/opt/rustwide/target/debug/deps/liblog-51760c8d9f0a0b95.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-727e218cbe4629d5.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-3532beb752f910d7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3529ece450b7f3c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-23e8f582a6744f80.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-5e7e0793b29cbf78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-253e0736424ceb78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-b6fd484888124c85.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-cca4d20e4b53839c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0a7401891c2a4f50.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-efbb25e073df787e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-25965457612624bc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-09058283ea779342.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-ab973dacc0513511.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b437d6640b1f764b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8cc0b2380206399c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-727cdf2b6a468113.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cf4d442d877ea2f4.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-7e5b6df427ca977c.rlib" "-Wl,-Bdynamic" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           /usr/bin/ld: cannot find -lvirt
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `verne`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "09c7bc4606ad59579d1204e82916d2476cf5a2d6ee90923f91fba4d745645ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09c7bc4606ad59579d1204e82916d2476cf5a2d6ee90923f91fba4d745645ef1", kill_on_drop: false }`
[INFO] [stdout] 09c7bc4606ad59579d1204e82916d2476cf5a2d6ee90923f91fba4d745645ef1
