[INFO] crate verne 0.1.0 is already in cache
[INFO] extracting crate verne 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/verne/0.1.0
[INFO] extracting crate verne 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/verne/0.1.0
[INFO] validating manifest of verne-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of verne-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing verne-0.1.0
[INFO] finished frobbing verne-0.1.0
[INFO] frobbed toml for verne-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/verne/0.1.0/Cargo.toml
[INFO] started frobbing verne-0.1.0
[INFO] finished frobbing verne-0.1.0
[INFO] frobbed toml for verne-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/verne/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing verne-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/verne/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 191f7296901fa45946acde4d08e791b918614e8899afdf1338eaae464d94a9ce
[INFO] running `"docker" "start" "-a" "191f7296901fa45946acde4d08e791b918614e8899afdf1338eaae464d94a9ce"`
[INFO] [stderr]    Compiling virt v0.2.10
[INFO] [stderr]    Compiling verne v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]   --> src/libvirt.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |                  ref memory,
[INFO] [stderr]    |                  ----^^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: try ignoring the field: `memory: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vcpus`
[INFO] [stderr]   --> src/libvirt.rs:54:22
[INFO] [stderr]    |
[INFO] [stderr] 54 |                  ref vcpus,
[INFO] [stderr]    |                  ----^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: try ignoring the field: `vcpus: _`
[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] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/verne-461027c101985f1d.verne.l9sfk7m5-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/verne-461027c101985f1d" "/opt/crater/target/debug/deps/verne-461027c101985f1d.47l9akrqjctuo45l.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libverne-a446d2dca9b9c323.rlib" "/opt/crater/target/debug/deps/libvirt-2ae78eb18775c3de.rlib" "/opt/crater/target/debug/deps/liblibc-e3ba75b536aabfa5.rlib" "/opt/crater/target/debug/deps/libyaml_rust-cb7f0d7d431800b7.rlib" "/opt/crater/target/debug/deps/libgetopts-65cdc9b816a721d2.rlib" "/opt/crater/target/debug/deps/libunicode_width-26f3734d51bc29d0.rlib" "/opt/crater/target/debug/deps/libenv_logger-dbb31332eec9c360.rlib" "/opt/crater/target/debug/deps/libregex-26fb8674d142841d.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-c6a873325be34359.rlib" "/opt/crater/target/debug/deps/libregex_syntax-9f366e6fcd5f9b6c.rlib" "/opt/crater/target/debug/deps/libucd_util-4ceb5a30356a8267.rlib" "/opt/crater/target/debug/deps/libthread_local-0d1f504ec86ae5ec.rlib" "/opt/crater/target/debug/deps/liblazy_static-35422c5bca3b6d90.rlib" "/opt/crater/target/debug/deps/libaho_corasick-8662fb1d0f3bd23a.rlib" "/opt/crater/target/debug/deps/libmemchr-603e105d3530919e.rlib" "/opt/crater/target/debug/deps/liblog-a60233c9189805c1.rlib" "/opt/crater/target/debug/deps/liblog-481c00b0f76d55f6.rlib" "/opt/crater/target/debug/deps/libcfg_if-29b6f8db75d699b1.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.rlib" "-Wl,-Bdynamic" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lvirt" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-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" "191f7296901fa45946acde4d08e791b918614e8899afdf1338eaae464d94a9ce"`
[INFO] running `"docker" "rm" "-f" "191f7296901fa45946acde4d08e791b918614e8899afdf1338eaae464d94a9ce"`
[INFO] [stdout] 191f7296901fa45946acde4d08e791b918614e8899afdf1338eaae464d94a9ce