[INFO] updating cached repository Yamakaky/rvpn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Yamakaky/rvpn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Yamakaky/rvpn" "work/ex/beta-1.37-6/sources/1.36.0/gh/Yamakaky/rvpn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Yamakaky/rvpn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Yamakaky/rvpn" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Yamakaky/rvpn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Yamakaky/rvpn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5baa44e978b4acfa65280faab552f488221f88cb
[INFO] sha for GitHub repo Yamakaky/rvpn: 5baa44e978b4acfa65280faab552f488221f88cb
[INFO] validating manifest of Yamakaky/rvpn on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Yamakaky/rvpn on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Yamakaky/rvpn
[INFO] finished frobbing Yamakaky/rvpn
[INFO] frobbed toml for Yamakaky/rvpn written to work/ex/beta-1.37-6/sources/1.36.0/gh/Yamakaky/rvpn/Cargo.toml
[INFO] started frobbing Yamakaky/rvpn
[INFO] finished frobbing Yamakaky/rvpn
[INFO] frobbed toml for Yamakaky/rvpn written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Yamakaky/rvpn/Cargo.toml
[INFO] crate Yamakaky/rvpn already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Yamakaky/rvpn against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Yamakaky/rvpn:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] dd54c4d54016df5fb3519273075e8d11c6c016780a497fd7e58f51106ea45ccb
[INFO] running `"docker" "start" "-a" "dd54c4d54016df5fb3519273075e8d11c6c016780a497fd7e58f51106ea45ccb"`
[INFO] [stderr]    Compiling lazycell v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling futures v0.1.6
[INFO] [stderr]    Compiling ioctl v0.3.3
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling error-chain v0.7.1
[INFO] [stderr]    Compiling mio v0.6.1
[INFO] [stderr]    Compiling tokio-core v0.1.1
[INFO] [stderr]    Compiling tun v0.1.0 (git://github.com/Yamakaky/tun-rs.git#44eca9ce)
[INFO] [stderr]    Compiling rvpn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `tokio_core::io::Io`
[INFO] [stderr]  --> src/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use tokio_core::io::Io;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio_core::reactor`
[INFO] [stderr]  --> src/lib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use tokio_core::reactor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/lib.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / error_chain! {
[INFO] [stderr] 13 | |     links {
[INFO] [stderr] 14 | |         Tun(tun::Error, tun::ErrorKind);
[INFO] [stderr] 15 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     }
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::Stream`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use futures::Stream;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[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-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.server.4spg2856-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/server-dbbbc220fce21517" "/opt/crater/target/debug/deps/server-dbbbc220fce21517.1hf46zt1zolihegf.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/librvpn-b033c8039ad419a4.rlib" "/opt/crater/target/debug/deps/libtun-5dd803d5396677ad.rlib" "/opt/crater/target/debug/deps/libioctl-9c0a599fa4b42d6e.rlib" "/opt/crater/target/debug/deps/libbitflags-e424d0a7dda42873.rlib" "/opt/crater/target/debug/deps/libtokio_core-cae4e90ef8cdbe6b.rlib" "/opt/crater/target/debug/deps/libscoped_tls-1d820863bdd09a78.rlib" "/opt/crater/target/debug/deps/libmio-02c29a725f923e85.rlib" "/opt/crater/target/debug/deps/libnix-4626ff03d9e29e23.rlib" "/opt/crater/target/debug/deps/libvoid-7cea1bca190341e8.rlib" "/opt/crater/target/debug/deps/libbitflags-37df1eb7983fc230.rlib" "/opt/crater/target/debug/deps/libslab-9e7ba87ec006f403.rlib" "/opt/crater/target/debug/deps/libnet2-1f16e27532e635ac.rlib" "/opt/crater/target/debug/deps/liblazycell-04a8110958242d4e.rlib" "/opt/crater/target/debug/deps/liberror_chain-5f7a24086cad87fa.rlib" "/opt/crater/target/debug/deps/libbacktrace-7fd5b932768434ea.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-c8477218468fcc42.rlib" "/opt/crater/target/debug/deps/librustc_demangle-7e1e84fc0d2949f5.rlib" "/opt/crater/target/debug/deps/libcfg_if-e3a657be82e73c34.rlib" "/opt/crater/target/debug/deps/libdbghelp-610e6a484d3f70b3.rlib" "/opt/crater/target/debug/deps/libwinapi-387a29eb28388c06.rlib" "/opt/crater/target/debug/deps/libkernel32-f16f9b42bdd87fed.rlib" "/opt/crater/target/debug/deps/liblibc-1466dc2378834e22.rlib" "/opt/crater/target/debug/deps/libfutures-27e0b7e4d16b2200.rlib" "/opt/crater/target/debug/deps/liblog-bc9d51df88434be4.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libbacktrace-7fd5b932768434ea.rlib(backtrace-7fd5b932768434ea.backtrace.4gm44s51-cgu.4.rcgu.o): In function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /opt/crater/target/debug/deps/libbacktrace-7fd5b932768434ea.rlib(backtrace-7fd5b932768434ea.backtrace.4gm44s51-cgu.4.rcgu.o): In function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[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 `rvpn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dd54c4d54016df5fb3519273075e8d11c6c016780a497fd7e58f51106ea45ccb"`
[INFO] running `"docker" "rm" "-f" "dd54c4d54016df5fb3519273075e8d11c6c016780a497fd7e58f51106ea45ccb"`
[INFO] [stdout] dd54c4d54016df5fb3519273075e8d11c6c016780a497fd7e58f51106ea45ccb