[INFO] cloning repository https://github.com/AnimatedRNG/skype-vpn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnimatedRNG/skype-vpn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnimatedRNG%2Fskype-vpn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnimatedRNG%2Fskype-vpn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae1979288b3ea993399676bc672c86e25715e0b4
[INFO] documenting AnimatedRNG/skype-vpn against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnimatedRNG%2Fskype-vpn" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnimatedRNG/skype-vpn on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] crate git repo https://github.com/AnimatedRNG/skype-vpn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/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[INFO] the lockfile is outdated, regenerating it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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 510c6c4eee5d97f6c2dc2904e9b8b1927fefdf4dab5d21ef7cf7915747655738
[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" "510c6c4eee5d97f6c2dc2904e9b8b1927fefdf4dab5d21ef7cf7915747655738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "510c6c4eee5d97f6c2dc2904e9b8b1927fefdf4dab5d21ef7cf7915747655738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "510c6c4eee5d97f6c2dc2904e9b8b1927fefdf4dab5d21ef7cf7915747655738", kill_on_drop: false }`
[INFO] [stdout] 510c6c4eee5d97f6c2dc2904e9b8b1927fefdf4dab5d21ef7cf7915747655738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "RUSTDOCFLAGS=--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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ab75bd0904901fb7dcb0ab69096d6daf59a90d0872f02cb780b32c5888a64982
[INFO] running `Command { std: "docker" "start" "-a" "ab75bd0904901fb7dcb0ab69096d6daf59a90d0872f02cb780b32c5888a64982", kill_on_drop: false }`
[INFO] [stderr]     Checking reed-solomon v0.2.1
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]  Documenting skype-vpn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stdout]   --> src/image_coder.rs:10:75
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn create_image_buffer(width: u16, height: u16, data: *mut u8) -> *mut ImageBuffer;
[INFO] [stdout]    |                                                                           ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes)]` on by default
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/image_coder.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct ImageBuffer;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stdout]   --> src/image_coder.rs:12:38
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn release_resources(buffer: *mut ImageBuffer);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/image_coder.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct ImageBuffer;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stdout]   --> src/image_coder.rs:14:34
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn delete_handle(buffer: *mut ImageBuffer);
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/image_coder.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct ImageBuffer;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stdout]   --> src/image_coder.rs:16:58
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn encode(input: *const BitString, write_buffer: *mut ImageBuffer);
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/image_coder.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct ImageBuffer;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` block uses type `image_coder::ImageBuffer`, which is not FFI-safe
[INFO] [stdout]   --> src/image_coder.rs:18:56
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn decode(output: *mut BitString, read_buffer: *const ImageBuffer);
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a member to this struct
[INFO] [stdout]    = note: this struct has no fields
[INFO] [stdout] note: the type is defined here
[INFO] [stdout]   --> src/image_coder.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct ImageBuffer;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
[INFO] running `Command { std: "docker" "inspect" "ab75bd0904901fb7dcb0ab69096d6daf59a90d0872f02cb780b32c5888a64982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab75bd0904901fb7dcb0ab69096d6daf59a90d0872f02cb780b32c5888a64982", kill_on_drop: false }`
[INFO] [stdout] ab75bd0904901fb7dcb0ab69096d6daf59a90d0872f02cb780b32c5888a64982