[INFO] fetching crate verne 0.1.0...
[INFO] testing verne-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate verne 0.1.0 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate verne 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-46/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24e9a9da8548b04b12e2c035ef54c72927a69780150cf2585caf657504ff36a9
[INFO] running `Command { std: "docker" "start" "-a" "24e9a9da8548b04b12e2c035ef54c72927a69780150cf2585caf657504ff36a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24e9a9da8548b04b12e2c035ef54c72927a69780150cf2585caf657504ff36a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e9a9da8548b04b12e2c035ef54c72927a69780150cf2585caf657504ff36a9", kill_on_drop: false }`
[INFO] [stdout] 24e9a9da8548b04b12e2c035ef54c72927a69780150cf2585caf657504ff36a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ecf48188d2e5f0fff20396e58552e7a25ab25a4024e24bf39549cd3de3921fc
[INFO] running `Command { std: "docker" "start" "-a" "6ecf48188d2e5f0fff20396e58552e7a25ab25a4024e24bf39549cd3de3921fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling getopts v0.2.21
[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] [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 `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 `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 `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] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Err(f) => panic!(f.to_string()),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Err(f) => panic!("{}", f.to_string()),
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Err(f) => std::panic::panic_any(f.to_string()),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.verne.3b472cfa-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825.1oigsfnrloakzet2.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libverne-c206d7973ab497e6.rlib" "/opt/rustwide/target/debug/deps/libvirt-4e5c3c5c3de98b9d.rlib" "/opt/rustwide/target/debug/deps/liblibc-bd0a7f2f55865ae0.rlib" "/opt/rustwide/target/debug/deps/libyaml_rust-2b9442fbdf5f9489.rlib" "/opt/rustwide/target/debug/deps/libgetopts-0b55d45656573274.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-31fed32a2fe36ec3.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-446943ee1821f53d.rlib" "/opt/rustwide/target/debug/deps/libregex-31bb272e7528fb17.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-529094c12f4c6718.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-da6dc9877a61e022.rlib" "/opt/rustwide/target/debug/deps/libucd_util-d66b5e68c34691a2.rlib" "/opt/rustwide/target/debug/deps/libthread_local-b4ea3733d5b8609e.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-e92083d5a39a8b50.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-8fc055f0648ce257.rlib" "/opt/rustwide/target/debug/deps/libmemchr-fdb14ed691dc70dd.rlib" "/opt/rustwide/target/debug/deps/liblog-1bfa4e4f3f840233.rlib" "/opt/rustwide/target/debug/deps/liblog-18e19f5b5787b169.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-0d27f345b2a6a3cd.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-46a006cddfd334f0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-5b9870310e470b38.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-260022ba8f1ab4ee.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-71377435a799394f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-658ee5924fde57cd.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-9e8627da6bd1b94a.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-19fdaac49f59be84.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-cb00e2691ea45905.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-50f6726defae5ae1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-2afc16311deea26e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bb5cb0fe086ee8cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-896053247b5dfd0b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-735e1f2ac3cf23be.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-9dfb6622644c732c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-a9a3b2ad67977f47.rlib" "-Wl,-Bdynamic" "-lvirt" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/verne-251bb750a9c13825" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /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; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `verne` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6ecf48188d2e5f0fff20396e58552e7a25ab25a4024e24bf39549cd3de3921fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecf48188d2e5f0fff20396e58552e7a25ab25a4024e24bf39549cd3de3921fc", kill_on_drop: false }`
[INFO] [stdout] 6ecf48188d2e5f0fff20396e58552e7a25ab25a4024e24bf39549cd3de3921fc
