[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-1.38-1/sources/1.37.0/gh/Yamakaky/rvpn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Yamakaky/rvpn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Yamakaky/rvpn" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Yamakaky/rvpn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Yamakaky/rvpn on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Yamakaky/rvpn against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3a30ab1ae7cfac065c44b8f968fcd29189c4229a1fb680faf4452893f8ee0ae2
[INFO] running `"docker" "start" "-a" "3a30ab1ae7cfac065c44b8f968fcd29189c4229a1fb680faf4452893f8ee0ae2"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling futures v0.1.6
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling ioctl v0.3.3
[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-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/server-f939b566d6378d39.server.7nyvut5x-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/server-f939b566d6378d39" "/opt/crater/target/debug/deps/server-f939b566d6378d39.100j9n3clzgf8p7i.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/librvpn-e1b9ba806789bf49.rlib" "/opt/crater/target/debug/deps/libtun-ba6752f8f9a986b8.rlib" "/opt/crater/target/debug/deps/libioctl-c0da638e459d0278.rlib" "/opt/crater/target/debug/deps/libbitflags-b03ee8d07369378c.rlib" "/opt/crater/target/debug/deps/libtokio_core-a8acd11780620402.rlib" "/opt/crater/target/debug/deps/libscoped_tls-166f77ce51c4f50d.rlib" "/opt/crater/target/debug/deps/libmio-af16edd731ed2369.rlib" "/opt/crater/target/debug/deps/libnix-d619a15025350d03.rlib" "/opt/crater/target/debug/deps/libvoid-ee701c9bdcbc84a6.rlib" "/opt/crater/target/debug/deps/libbitflags-19846806352ac884.rlib" "/opt/crater/target/debug/deps/libslab-424cb31d1ed16f51.rlib" "/opt/crater/target/debug/deps/libnet2-e63a1d60427a6e3d.rlib" "/opt/crater/target/debug/deps/liblazycell-ed6b71c9ac92a335.rlib" "/opt/crater/target/debug/deps/liberror_chain-05dd08b5559f84eb.rlib" "/opt/crater/target/debug/deps/libbacktrace-70e9758a2ec39e2c.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-2c6808a2201afa04.rlib" "/opt/crater/target/debug/deps/librustc_demangle-a63e03c53d847d30.rlib" "/opt/crater/target/debug/deps/libcfg_if-e594ac7fa20b1aa3.rlib" "/opt/crater/target/debug/deps/libdbghelp-d860676abe2fb31b.rlib" "/opt/crater/target/debug/deps/libwinapi-be47d272a993a950.rlib" "/opt/crater/target/debug/deps/libkernel32-ed10b6f453a27092.rlib" "/opt/crater/target/debug/deps/liblibc-a442291025725117.rlib" "/opt/crater/target/debug/deps/libfutures-f2d90bb4712dfc3e.rlib" "/opt/crater/target/debug/deps/liblog-f86f92691b4ababd.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libbacktrace-70e9758a2ec39e2c.rlib(backtrace-70e9758a2ec39e2c.backtrace.4hppdqhm-cgu.6.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-70e9758a2ec39e2c.rlib(backtrace-70e9758a2ec39e2c.backtrace.4hppdqhm-cgu.6.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] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3a30ab1ae7cfac065c44b8f968fcd29189c4229a1fb680faf4452893f8ee0ae2"`
[INFO] running `"docker" "rm" "-f" "3a30ab1ae7cfac065c44b8f968fcd29189c4229a1fb680faf4452893f8ee0ae2"`
[INFO] [stdout] 3a30ab1ae7cfac065c44b8f968fcd29189c4229a1fb680faf4452893f8ee0ae2