[INFO] updating cached repository https://github.com/AnimatedRNG/skype-vpn
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae1979288b3ea993399676bc672c86e25715e0b4
[INFO] testing AnimatedRNG/skype-vpn against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnimatedRNG%2Fskype-vpn" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnimatedRNG/skype-vpn on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AnimatedRNG/skype-vpn
[INFO] finished tweaking git repo https://github.com/AnimatedRNG/skype-vpn
[INFO] tweaked toml for git repo https://github.com/AnimatedRNG/skype-vpn written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/AnimatedRNG/skype-vpn already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f6814b80e6c1e5694f329ec482f696d3370195b17c754c8f790f9fb145b8b33f
[INFO] running `"docker" "start" "-a" "f6814b80e6c1e5694f329ec482f696d3370195b17c754c8f790f9fb145b8b33f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling reed-solomon v0.2.1
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling image v0.21.3
[INFO] [stderr]    Compiling skype-vpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `server_tx`
[INFO] [stderr]    --> src/main.rs:314:10
[INFO] [stderr]     |
[INFO] [stderr] 314 |     let (server_tx, server_rx) = handle_1_1_udp(server_sock, Some(socket_addr));
[INFO] [stderr]     |          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_server_tx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `BitString`
[INFO] [stderr]  --> src/image_coder.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub type BitString = [u8; FRAME_LEN];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ImageBuffer`
[INFO] [stderr]  --> src/image_coder.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ImageBuffer;
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_image_buffer`
[INFO] [stderr]   --> src/image_coder.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn create_image_buffer(width: u16, height: u16, data: *mut u8) -> *mut ImageBuffer;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `release_resources`
[INFO] [stderr]   --> src/image_coder.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn release_resources(buffer: *mut ImageBuffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `delete_handle`
[INFO] [stderr]   --> src/image_coder.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn delete_handle(buffer: *mut ImageBuffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encode`
[INFO] [stderr]   --> src/image_coder.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn encode(input: *const BitString, write_buffer: *mut ImageBuffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decode`
[INFO] [stderr]   --> src/image_coder.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn decode(output: *mut BitString, read_buffer: *const ImageBuffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MAX_UDP_PACKET_LEN`
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | const MAX_UDP_PACKET_LEN: usize = 576;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/main.rs:104:40
[INFO] [stderr]     |
[INFO] [stderr] 104 |         raw_frame_data.extend([0u8; 2].into_iter());
[INFO] [stderr]     |                                        ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/main.rs:106:33
[INFO] [stderr]     |
[INFO] [stderr] 106 |         raw_frame_data.extend(v.into_iter());
[INFO] [stderr]     |                                 ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stderr]   --> src/image_coder.rs:10:75
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn create_image_buffer(width: u16, height: u16, data: *mut u8) -> *mut ImageBuffer;
[INFO] [stderr]    |                                                                           ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stderr]    = help: consider adding a member to this struct
[INFO] [stderr]    = note: this struct has no fields
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]   --> src/image_coder.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | pub struct ImageBuffer;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stderr]   --> src/image_coder.rs:12:38
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn release_resources(buffer: *mut ImageBuffer);
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a member to this struct
[INFO] [stderr]    = note: this struct has no fields
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]   --> src/image_coder.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | pub struct ImageBuffer;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stderr]   --> src/image_coder.rs:14:34
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn delete_handle(buffer: *mut ImageBuffer);
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a member to this struct
[INFO] [stderr]    = note: this struct has no fields
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]   --> src/image_coder.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | pub struct ImageBuffer;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stderr]   --> src/image_coder.rs:16:58
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn encode(input: *const BitString, write_buffer: *mut ImageBuffer);
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a member to this struct
[INFO] [stderr]    = note: this struct has no fields
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]   --> src/image_coder.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | pub struct ImageBuffer;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stderr]   --> src/image_coder.rs:18:56
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn decode(output: *mut BitString, read_buffer: *const ImageBuffer);
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding a member to this struct
[INFO] [stderr]    = note: this struct has no fields
[INFO] [stderr] note: the type is defined here
[INFO] [stderr]   --> src/image_coder.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  | pub struct ImageBuffer;
[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/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.skype_vpn.lynqbj8v-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299" "/opt/rustwide/target/debug/deps/skype_vpn-875bcd8de1038299.41ufyy0s0cgh74yk.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lframecoder" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libreed_solomon-e782bd4a7cc1ccf2.rlib" "/opt/rustwide/target/debug/deps/libcrc-28b8d347293ae474.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-78580fbf595daae7.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lframecoder
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `skype-vpn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f6814b80e6c1e5694f329ec482f696d3370195b17c754c8f790f9fb145b8b33f"`
[INFO] running `"docker" "rm" "-f" "f6814b80e6c1e5694f329ec482f696d3370195b17c754c8f790f9fb145b8b33f"`
[INFO] [stdout] f6814b80e6c1e5694f329ec482f696d3370195b17c754c8f790f9fb145b8b33f