[INFO] crate verne 0.1.0 is already in cache
[INFO] extracting crate verne 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/verne/0.1.0
[INFO] extracting crate verne 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/verne/0.1.0
[INFO] validating manifest of verne-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of verne-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/verne/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing verne-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4e12a784e99fea7874c7c22c8b9e158ecdc677954441e3d30415c12b98705b22
[INFO] running `"docker" "start" "-a" "4e12a784e99fea7874c7c22c8b9e158ecdc677954441e3d30415c12b98705b22"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.verne.aj588cis-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/verne-2100d43e989bc854" "/opt/crater/target/debug/deps/verne-2100d43e989bc854.11z3ux2v44t5j63.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libverne-d5590dbbc106d1dd.rlib" "/opt/crater/target/debug/deps/libvirt-a0dcbd919c3f24e2.rlib" "/opt/crater/target/debug/deps/liblibc-37f3d1c853b3b7bd.rlib" "/opt/crater/target/debug/deps/libyaml_rust-7f90bfa09845735f.rlib" "/opt/crater/target/debug/deps/libgetopts-e791cf19518e4faa.rlib" "/opt/crater/target/debug/deps/libunicode_width-c482f247a0e67224.rlib" "/opt/crater/target/debug/deps/libenv_logger-cb7e789ea3e5bcd5.rlib" "/opt/crater/target/debug/deps/libregex-c12a07ba2cef7200.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-cc1cabb2cf7145bf.rlib" "/opt/crater/target/debug/deps/libregex_syntax-f02878b30c9311c4.rlib" "/opt/crater/target/debug/deps/libucd_util-c0b3d8114e0f53f5.rlib" "/opt/crater/target/debug/deps/libthread_local-2ae771cec36f83c2.rlib" "/opt/crater/target/debug/deps/liblazy_static-1f7a4359e40a6da9.rlib" "/opt/crater/target/debug/deps/libaho_corasick-a97f7bbd6313e20c.rlib" "/opt/crater/target/debug/deps/libmemchr-23e7689be8a12a36.rlib" "/opt/crater/target/debug/deps/liblog-c97b73a8bcee9985.rlib" "/opt/crater/target/debug/deps/liblog-6796845c78a3960b.rlib" "/opt/crater/target/debug/deps/libcfg_if-c978b2f886ff1de7.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.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" "4e12a784e99fea7874c7c22c8b9e158ecdc677954441e3d30415c12b98705b22"`
[INFO] running `"docker" "rm" "-f" "4e12a784e99fea7874c7c22c8b9e158ecdc677954441e3d30415c12b98705b22"`
[INFO] [stdout] 4e12a784e99fea7874c7c22c8b9e158ecdc677954441e3d30415c12b98705b22