[INFO] fetching crate silverknife-pangocairo-sys 0.1.0...
[INFO] checking silverknife-pangocairo-sys-0.1.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate silverknife-pangocairo-sys 0.1.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate silverknife-pangocairo-sys 0.1.0 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate silverknife-pangocairo-sys 0.1.0
[INFO] finished tweaking crates.io crate silverknife-pangocairo-sys 0.1.0
[INFO] tweaked toml for crates.io crate silverknife-pangocairo-sys 0.1.0 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--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-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0d0f2ab8bda06bc8cdd53839c36ed17d5608f831583d049c9c875825c52a612
[INFO] running `Command { std: "docker" "start" "-a" "a0d0f2ab8bda06bc8cdd53839c36ed17d5608f831583d049c9c875825c52a612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0d0f2ab8bda06bc8cdd53839c36ed17d5608f831583d049c9c875825c52a612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0d0f2ab8bda06bc8cdd53839c36ed17d5608f831583d049c9c875825c52a612", kill_on_drop: false }`
[INFO] [stdout] a0d0f2ab8bda06bc8cdd53839c36ed17d5608f831583d049c9c875825c52a612
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e48cd0979ab42e2fa56be6ce3df04b29e0f96dda1489e274da1cc75f32c164cf
[INFO] running `Command { std: "docker" "start" "-a" "e48cd0979ab42e2fa56be6ce3df04b29e0f96dda1489e274da1cc75f32c164cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling silverknife-pangocairo-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the type `Struct__PangoAttrShape` does not permit zero-initialization
[INFO] [stdout]    --> src/pango.rs:421:37
[INFO] [stdout]     |
[INFO] [stdout] 421 |     fn default() -> Self { unsafe { ::std::mem::zeroed() } }
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     this code causes undefined behavior when executed
[INFO] [stdout]     |                                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] note: function pointers must be non-null (in this struct field)
[INFO] [stdout]    --> src/pango.rs:415:5
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub destroy_func: GDestroyNotify,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `Struct__PangoAttrShape` does not permit zero-initialization
[INFO] [stdout]    --> src/pango.rs:421:37
[INFO] [stdout]     |
[INFO] [stdout] 421 |     fn default() -> Self { unsafe { ::std::mem::zeroed() } }
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     this code causes undefined behavior when executed
[INFO] [stdout]     |                                     help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] note: function pointers must be non-null (in this struct field)
[INFO] [stdout]    --> src/pango.rs:415:5
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub destroy_func: GDestroyNotify,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "e48cd0979ab42e2fa56be6ce3df04b29e0f96dda1489e274da1cc75f32c164cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e48cd0979ab42e2fa56be6ce3df04b29e0f96dda1489e274da1cc75f32c164cf", kill_on_drop: false }`
[INFO] [stdout] e48cd0979ab42e2fa56be6ce3df04b29e0f96dda1489e274da1cc75f32c164cf