[INFO] cloning repository https://github.com/Yamakaky/rvpn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yamakaky/rvpn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYamakaky%2Frvpn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYamakaky%2Frvpn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5baa44e978b4acfa65280faab552f488221f88cb
[INFO] testing Yamakaky/rvpn against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYamakaky%2Frvpn" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Yamakaky/rvpn on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yamakaky/rvpn
[INFO] finished tweaking git repo https://github.com/Yamakaky/rvpn
[INFO] tweaked toml for git repo https://github.com/Yamakaky/rvpn written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Yamakaky/rvpn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27887fa5b369d825dfcaedf92656ab6d7d0c9ace70a9049f4e098037a2771f29
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "27887fa5b369d825dfcaedf92656ab6d7d0c9ace70a9049f4e098037a2771f29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27887fa5b369d825dfcaedf92656ab6d7d0c9ace70a9049f4e098037a2771f29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27887fa5b369d825dfcaedf92656ab6d7d0c9ace70a9049f4e098037a2771f29", kill_on_drop: false }`
[INFO] [stdout] 27887fa5b369d825dfcaedf92656ab6d7d0c9ace70a9049f4e098037a2771f29
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6508afecd167bc715969c82a4acdfd2983a507b3e82ab99e182be545e6ed072f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6508afecd167bc715969c82a4acdfd2983a507b3e82ab99e182be545e6ed072f", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling futures v0.1.6
[INFO] [stderr]    Compiling ioctl v0.3.3
[INFO] [stderr]    Compiling mio v0.6.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling tokio-core v0.1.1
[INFO] [stderr]    Compiling error-chain v0.7.1
[INFO] [stderr]    Compiling tun v0.1.0 (git://github.com/Yamakaky/tun-rs.git#44eca9ce)
[INFO] [stderr]    Compiling rvpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `tokio_core::io::Io`
[INFO] [stdout]  --> src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio_core::io::Io;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_core::reactor`
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio_core::reactor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / error_chain! {
[INFO] [stdout] 13 | |     links {
[INFO] [stdout] 14 | |         Tun(tun::Error, tun::ErrorKind);
[INFO] [stdout] 15 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     }
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | / error_chain! {
[INFO] [stdout] 13 | |     links {
[INFO] [stdout] 14 | |         Tun(tun::Error, tun::ErrorKind);
[INFO] [stdout] 15 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     }
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::Stream`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use futures::Stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.server.c13pd6xy-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd" "/opt/rustwide/target/debug/deps/server-020c0913cddb1bbd.123t5fpb4oqdwdir.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librvpn-df70c7d2fbacb8f6.rlib" "/opt/rustwide/target/debug/deps/libtun-276577c4cbdd72ed.rlib" "/opt/rustwide/target/debug/deps/libioctl-e2864c3c8390db9c.rlib" "/opt/rustwide/target/debug/deps/libbitflags-2660c594cf04f3b5.rlib" "/opt/rustwide/target/debug/deps/libtokio_core-5fd353a103492776.rlib" "/opt/rustwide/target/debug/deps/libscoped_tls-d24affb4ce0074c5.rlib" "/opt/rustwide/target/debug/deps/libmio-725644ad29c6d2c0.rlib" "/opt/rustwide/target/debug/deps/libnix-851ab7b1e44bd7db.rlib" "/opt/rustwide/target/debug/deps/libvoid-90ec4b4a2f3d40d2.rlib" "/opt/rustwide/target/debug/deps/libbitflags-07daebe67b2b1ddf.rlib" "/opt/rustwide/target/debug/deps/libslab-e83a44f3e278e1e9.rlib" "/opt/rustwide/target/debug/deps/libnet2-ee243c69fb2205e8.rlib" "/opt/rustwide/target/debug/deps/liblazycell-51027136bde0b7e5.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-90e283741408098f.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-ccb151ba71f714ee.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-3422d2523976e686.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-e71d3c01f8ad1f0e.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-167bc1d41d73014a.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-f8300490526c9a2c.rlib" "/opt/rustwide/target/debug/deps/libwinapi-4302359dfd2c100e.rlib" "/opt/rustwide/target/debug/deps/libkernel32-931d226f257ec229.rlib" "/opt/rustwide/target/debug/deps/liblibc-a76d7346d57fec24.rlib" "/opt/rustwide/target/debug/deps/libfutures-86f6f5c587618ed7.rlib" "/opt/rustwide/target/debug/deps/liblog-b29534f32a76d481.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-ccb151ba71f714ee.rlib(backtrace-ccb151ba71f714ee.backtrace.7n0p36f0-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-ccb151ba71f714ee.rlib(backtrace-ccb151ba71f714ee.backtrace.7n0p36f0-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rvpn`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "6508afecd167bc715969c82a4acdfd2983a507b3e82ab99e182be545e6ed072f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6508afecd167bc715969c82a4acdfd2983a507b3e82ab99e182be545e6ed072f", kill_on_drop: false }`
[INFO] [stdout] 6508afecd167bc715969c82a4acdfd2983a507b3e82ab99e182be545e6ed072f