[INFO] crate verne 0.1.0 is already in cache
[INFO] testing verne-0.1.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate verne 0.1.0 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate verne 0.1.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "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 work/builds/worker-4/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 5bc2a042d4d91bd3e1c4a544892b618c4949ec0e6ad289645f2b1e8668cfd5f6
[INFO] running `"docker" "start" "-a" "5bc2a042d4d91bd3e1c4a544892b618c4949ec0e6ad289645f2b1e8668cfd5f6"`
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling virt v0.2.11
[INFO] [stderr]    Compiling verne v0.1.0 (/opt/rustwide/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/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.verne.8buo59u4-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266" "/opt/rustwide/target/debug/deps/verne-daf3ccd43c1fa266.3zvkpdi1m0iomqkn.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libverne-d319d4b4f14d97bf.rlib" "/opt/rustwide/target/debug/deps/libvirt-f9bfca7221f42dd0.rlib" "/opt/rustwide/target/debug/deps/liblibc-a3b13f6b27abcc70.rlib" "/opt/rustwide/target/debug/deps/libyaml_rust-fc9761916af43bee.rlib" "/opt/rustwide/target/debug/deps/libgetopts-fe5c6cf10c55d647.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-019a22cacfcfb093.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-1e147b2abeb6bf44.rlib" "/opt/rustwide/target/debug/deps/libregex-a6dad98604613b54.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-26bd95c72379fd1e.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-74b2c8a45128fffb.rlib" "/opt/rustwide/target/debug/deps/libucd_util-d37481ea0df54155.rlib" "/opt/rustwide/target/debug/deps/libthread_local-708705e5460096e3.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-83cafc2ae303332c.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-ce9e59850306ca8d.rlib" "/opt/rustwide/target/debug/deps/libmemchr-07c655ccb8662d4a.rlib" "/opt/rustwide/target/debug/deps/liblog-1818c57ccc56e23e.rlib" "/opt/rustwide/target/debug/deps/liblog-e50aa4e61ffd3b64.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-da99d89e98e4f9e7.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-12ce12f1efc08aa3.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5d3cd1b3ddab72e4.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-f8222943dfd167e2.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-0cd00b2d3108cd48.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-485c05ba6ce1b438.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-63e6b1072426ba59.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-a421aff1d43911ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3deef8ef4fe80dff.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f65a176f0586269e.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ad46d4080f4d7e57.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-da6c590582bf0885.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-837ca740df32db0a.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-db27c965e824589f.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-68a4f8466685ed76.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" "5bc2a042d4d91bd3e1c4a544892b618c4949ec0e6ad289645f2b1e8668cfd5f6"`
[INFO] running `"docker" "rm" "-f" "5bc2a042d4d91bd3e1c4a544892b618c4949ec0e6ad289645f2b1e8668cfd5f6"`
[INFO] [stdout] 5bc2a042d4d91bd3e1c4a544892b618c4949ec0e6ad289645f2b1e8668cfd5f6