[INFO] crate verne 0.1.0 is already in cache
[INFO] testing verne-0.1.0 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate verne 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate verne 0.1.0 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "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-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] afad7680ac258d2ae2af9390e3434df61bcecf0e404ad3ef40ed85e929c99118
[INFO] running `"docker" "start" "-a" "afad7680ac258d2ae2af9390e3434df61bcecf0e404ad3ef40ed85e929c99118"`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling virt v0.2.11
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[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/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.verne.2uzuedvl-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5" "/opt/rustwide/target/debug/deps/verne-5050fd05e81bf0d5.4m5ddlva4jgtjujf.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libverne-9b297a1ebb076470.rlib" "/opt/rustwide/target/debug/deps/libvirt-26fd938b2bb0ac20.rlib" "/opt/rustwide/target/debug/deps/liblibc-7f3b8e4c2db2a8d8.rlib" "/opt/rustwide/target/debug/deps/libyaml_rust-c4607921dd46e787.rlib" "/opt/rustwide/target/debug/deps/libgetopts-1c99b49126bc2014.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-f4037b7b6be902d1.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-3ac2260cfb2df1ed.rlib" "/opt/rustwide/target/debug/deps/libregex-83ebe9261621294f.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-73b9a414549369b7.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-4a3485cc8b2de090.rlib" "/opt/rustwide/target/debug/deps/libucd_util-2cad64ef0548d015.rlib" "/opt/rustwide/target/debug/deps/libthread_local-54c5a590687748e9.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-81e71b56f2a8a8f3.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-224182489e205cbe.rlib" "/opt/rustwide/target/debug/deps/libmemchr-9a22b10b899620a4.rlib" "/opt/rustwide/target/debug/deps/liblog-bd3d795ce9bbd9ff.rlib" "/opt/rustwide/target/debug/deps/liblog-e05329b9ca199b2b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-7bfa6ddb9b2ff1d3.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-62f93208e14fa8f0.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-b2c4dbe979cef5e2.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-8b9b66cb3e9f891d.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-5998b08bf29f56ac.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-efd1670396ccb585.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6435b9209e888961.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-866e5dfb603b34d2.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-75eac3089695b3b4.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-35744537b4825584.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-f7ee5081d96fb2cd.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-5b28479cb639d76c.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-f827473dd3b319fa.rlib" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-53f9c299c549c6a9.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/41997647ba6a77908f6ef64401414feb00bccf16/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-44132fbb3fcc18d3.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" "afad7680ac258d2ae2af9390e3434df61bcecf0e404ad3ef40ed85e929c99118"`
[INFO] running `"docker" "rm" "-f" "afad7680ac258d2ae2af9390e3434df61bcecf0e404ad3ef40ed85e929c99118"`
[INFO] [stdout] afad7680ac258d2ae2af9390e3434df61bcecf0e404ad3ef40ed85e929c99118