[INFO] cloning repository https://github.com/svenslaggare/docker-on-kvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenslaggare/docker-on-kvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenslaggare%2Fdocker-on-kvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenslaggare%2Fdocker-on-kvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66a90f7c92f93fc64b982fa0873c9019eb10d525
[INFO] testing svenslaggare/docker-on-kvm against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenslaggare%2Fdocker-on-kvm" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/svenslaggare/docker-on-kvm
[INFO] finished tweaking git repo https://github.com/svenslaggare/docker-on-kvm
[INFO] tweaked toml for git repo https://github.com/svenslaggare/docker-on-kvm written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/svenslaggare/docker-on-kvm on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/svenslaggare/docker-on-kvm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2650654f43cf73a1efe57def5797ba779b7f3b0eec8de7f5db44c6bd58bd178
[INFO] running `Command { std: "docker" "start" "-a" "b2650654f43cf73a1efe57def5797ba779b7f3b0eec8de7f5db44c6bd58bd178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2650654f43cf73a1efe57def5797ba779b7f3b0eec8de7f5db44c6bd58bd178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2650654f43cf73a1efe57def5797ba779b7f3b0eec8de7f5db44c6bd58bd178", kill_on_drop: false }`
[INFO] [stdout] b2650654f43cf73a1efe57def5797ba779b7f3b0eec8de7f5db44c6bd58bd178
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 089f2a54c15b01d21abac443d795bb8cbc25b3ee9e952c62948d2dfa9a66267b
[INFO] running `Command { std: "docker" "start" "-a" "089f2a54c15b01d21abac443d795bb8cbc25b3ee9e952c62948d2dfa9a66267b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling virt v0.2.11
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling docker-on-kvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/docker_image.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     IO(std::io::Error),
[INFO] [stdout]   |     -- ^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DockerImageError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -     IO(std::io::Error),
[INFO] [stdout] 8 +     IO(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/docker_image.rs:11:21
[INFO] [stdout]    |
[INFO] [stdout] 11 |     FailedToExtract(String),
[INFO] [stdout]    |     --------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DockerImageError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     FailedToExtract(String),
[INFO] [stdout] 11 +     FailedToExtract(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcei2YTR/symbols.o" "<5 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/{libuuid-f67450293314e64d,librand-93f0d8829c10b833,librand_chacha-72c020a2e9924ec0,librand_core-260e0aeb2d721a22,libgetrandom-6d7a4ca564534bdf,libcfg_if-33ef6c02a07f9fec,libregex-4679301d5cd4b04b,libthread_local-2f3b94ab5dd251fa,libregex_syntax-5db503e23b30b506,libaho_corasick-cf5e22270982858b,libmemchr-772309e9079a5fe8,librand-f47177c885e75923,librand_chacha-357c29eeedcfb518,libppv_lite86-88ed22677a4c0286,librand_core-f5b2d26dbbcf658a,libgetrandom-4eb0dde4ae481225,libcfg_if-7e9efee4241be1ca,libvirt-27fea23678b5a355,libstructopt-74948a6df8280d91,liblazy_static-2bb390fee0230a38,libclap-968cd81795501057,libvec_map-ecbce826993378bd,libtextwrap-3db3c65cc235fb8e,libunicode_width-8f833626c49fb0ed,libstrsim-1c33ff29e0d45111,libbitflags-0629d6d36c0d1ed3,libatty-ecf8f1c2b4bb80cf,liblibc-dd22a5f031239edb,libansi_term-dc29728339138c52}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lvirt" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcei2YTR/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/docker_on_kvm-887f9d101e6f29d9" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: unable to find library -lvirt
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `docker-on-kvm` (bin "docker-on-kvm") due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "089f2a54c15b01d21abac443d795bb8cbc25b3ee9e952c62948d2dfa9a66267b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "089f2a54c15b01d21abac443d795bb8cbc25b3ee9e952c62948d2dfa9a66267b", kill_on_drop: false }`
[INFO] [stdout] 089f2a54c15b01d21abac443d795bb8cbc25b3ee9e952c62948d2dfa9a66267b
