[INFO] crate libffi 0.8.0 is already in cache
[INFO] checking libffi-0.8.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate libffi 0.8.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate libffi 0.8.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libffi 0.8.0
[INFO] finished tweaking crates.io crate libffi 0.8.0
[INFO] tweaked toml for crates.io crate libffi 0.8.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e740fddfee6b24a212b938d9ac9327e1e9332a673c0833f996718baace2027ce
[INFO] running `"docker" "start" "-a" "e740fddfee6b24a212b938d9ac9327e1e9332a673c0833f996718baace2027ce"`
[INFO] [stderr]     Checking abort_on_panic v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling libffi-sys v0.8.0
[INFO] [stderr]     Checking libffi v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/high/types.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | /// This item is enabled by `#[cfg(feature = "complex")]`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 113 | #[cfg(feature = "complex")]
[INFO] [stderr] 114 | impl_ffi_type!(c_c32, c32);
[INFO] [stderr]     | --------------------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/high/types.rs:115:1
[INFO] [stderr]     |
[INFO] [stderr] 115 | /// This item is enabled by `#[cfg(feature = "complex")]`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 116 | #[cfg(feature = "complex")]
[INFO] [stderr] 117 | impl_ffi_type!(c_c64, c64);
[INFO] [stderr]     | --------------------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/high/types.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | /// This item is enabled by `#[cfg(feature = "complex")]`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 113 | #[cfg(feature = "complex")]
[INFO] [stderr] 114 | impl_ffi_type!(c_c32, c32);
[INFO] [stderr]     | --------------------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/high/types.rs:115:1
[INFO] [stderr]     |
[INFO] [stderr] 115 | /// This item is enabled by `#[cfg(feature = "complex")]`.
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 116 | #[cfg(feature = "complex")]
[INFO] [stderr] 117 | impl_ffi_type!(c_c64, c64);
[INFO] [stderr]     | --------------------------- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]     |
[INFO] [stderr]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middle/mod.rs:347:20
[INFO] [stderr]     |
[INFO] [stderr] 347 |     _userdata: Box<Any>,
[INFO] [stderr]     |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middle/mod.rs:378:56
[INFO] [stderr]     |
[INFO] [stderr] 378 |         let userdata = Box::new(Some(userdata)) as Box<Any>;
[INFO] [stderr]     |                                                        ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middle/mod.rs:347:20
[INFO] [stderr]     |
[INFO] [stderr] 347 |     _userdata: Box<Any>,
[INFO] [stderr]     |                    ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middle/mod.rs:378:56
[INFO] [stderr]     |
[INFO] [stderr] 378 |         let userdata = Box::new(Some(userdata)) as Box<Any>;
[INFO] [stderr]     |                                                        ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/low.rs:336:25
[INFO] [stderr]     |
[INFO] [stderr] 336 |     let mut result: R = mem::uninitialized();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/low.rs:364:45
[INFO] [stderr]     |
[INFO] [stderr] 364 |         let mut code_pointer: *mut c_void = mem::uninitialized();
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/low.rs:336:25
[INFO] [stderr]     |
[INFO] [stderr] 336 |     let mut result: R = mem::uninitialized();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/low.rs:364:45
[INFO] [stderr]     |
[INFO] [stderr] 364 |         let mut code_pointer: *mut c_void = mem::uninitialized();
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
[INFO] [stderr]    --> src/middle/types.rs:457:9
[INFO] [stderr]     |
[INFO] [stderr] 457 |         Type::u64().clone().clone();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::clone::Clone::clone` that must be used
[INFO] [stderr]    --> src/middle/types.rs:469:9
[INFO] [stderr]     |
[INFO] [stderr] 469 | /         Type::structure(vec![Type::i64(),
[INFO] [stderr] 470 | |                              Type::i64(),
[INFO] [stderr] 471 | |                              Type::u64()]).clone().clone();
[INFO] [stderr]     | |___________________________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: cloning is often expensive and is not expected to have side effects
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `"docker" "inspect" "e740fddfee6b24a212b938d9ac9327e1e9332a673c0833f996718baace2027ce"`
[INFO] running `"docker" "rm" "-f" "e740fddfee6b24a212b938d9ac9327e1e9332a673c0833f996718baace2027ce"`
[INFO] [stdout] e740fddfee6b24a212b938d9ac9327e1e9332a673c0833f996718baace2027ce