Sep 06 04:19:18.779 INFO checking linkbot-0.0.2 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 04:19:18.779 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 04:19:18.779 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-3/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 04:19:18.939 INFO blam! cfdf88f9d98f6d5bd161608fcc7ad3ca5e74c8792974b26f856e56151e4f5645
Sep 06 04:19:18.941 INFO running `"docker" "start" "-a" "cfdf88f9d98f6d5bd161608fcc7ad3ca5e74c8792974b26f856e56151e4f5645"`
Sep 06 04:19:20.032 INFO kablam! usermod: no changes
Sep 06 04:19:20.055 INFO kablam!     Checking linkbot v0.0.2 (file:///source)
Sep 06 04:19:20.277 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.277 INFO kablam!    --> src/lib.rs:326:41
Sep 06 04:19:20.277 INFO kablam!     |
Sep 06 04:19:20.277 INFO kablam! 326 |                                     cb: extern fn(i32, i32, i32, *mut Inner),
Sep 06 04:19:20.277 INFO kablam!     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.277 INFO kablam!     |
Sep 06 04:19:20.277 INFO kablam!     = note: #[warn(improper_ctypes)] on by default
Sep 06 04:19:20.277 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.277 INFO kablam! 
Sep 06 04:19:20.277 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.277 INFO kablam!    --> src/lib.rs:327:47
Sep 06 04:19:20.277 INFO kablam!     |
Sep 06 04:19:20.277 INFO kablam! 327 |                                     userdata: *mut Inner) -> i32;
Sep 06 04:19:20.277 INFO kablam!     |                                               ^^^^^^^^^^
Sep 06 04:19:20.277 INFO kablam!     |
Sep 06 04:19:20.277 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.277 INFO kablam! 
Sep 06 04:19:20.277 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.277 INFO kablam!    --> src/lib.rs:329:42
Sep 06 04:19:20.277 INFO kablam!     |
Sep 06 04:19:20.277 INFO kablam! 329 |                                      cb: Option<extern fn(i32, i32, i32, *mut Inner)>,
Sep 06 04:19:20.277 INFO kablam!     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.277 INFO kablam!     |
Sep 06 04:19:20.277 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.278 INFO kablam! 
Sep 06 04:19:20.278 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.278 INFO kablam!    --> src/lib.rs:330:48
Sep 06 04:19:20.278 INFO kablam!     |
Sep 06 04:19:20.278 INFO kablam! 330 |                                      userdata: *mut Inner) -> i32;
Sep 06 04:19:20.278 INFO kablam!     |                                                ^^^^^^^^^^
Sep 06 04:19:20.278 INFO kablam!     |
Sep 06 04:19:20.278 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.278 INFO kablam! 
Sep 06 04:19:20.296 INFO kablam! warning: unused variable: `button`
Sep 06 04:19:20.296 INFO kablam!    --> src/lib.rs:342:32
Sep 06 04:19:20.296 INFO kablam!     |
Sep 06 04:19:20.296 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Sep 06 04:19:20.296 INFO kablam!     |                                ^^^^^^ help: consider using `_button` instead
Sep 06 04:19:20.296 INFO kablam!     |
Sep 06 04:19:20.296 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 06 04:19:20.296 INFO kablam! 
Sep 06 04:19:20.296 INFO kablam! warning: unused variable: `state`
Sep 06 04:19:20.296 INFO kablam!    --> src/lib.rs:342:40
Sep 06 04:19:20.296 INFO kablam!     |
Sep 06 04:19:20.296 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Sep 06 04:19:20.296 INFO kablam!     |                                        ^^^^^ help: consider using `_state` instead
Sep 06 04:19:20.296 INFO kablam! 
Sep 06 04:19:20.296 INFO kablam! warning: unused variable: `timestamp`
Sep 06 04:19:20.296 INFO kablam!    --> src/lib.rs:342:47
Sep 06 04:19:20.296 INFO kablam!     |
Sep 06 04:19:20.296 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Sep 06 04:19:20.296 INFO kablam!     |                                               ^^^^^^^^^ help: consider using `_timestamp` instead
Sep 06 04:19:20.296 INFO kablam! 
Sep 06 04:19:20.304 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.304 INFO kablam!    --> src/lib.rs:326:41
Sep 06 04:19:20.304 INFO kablam!     |
Sep 06 04:19:20.304 INFO kablam! 326 |                                     cb: extern fn(i32, i32, i32, *mut Inner),
Sep 06 04:19:20.304 INFO kablam!     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.304 INFO kablam!     |
Sep 06 04:19:20.304 INFO kablam!     = note: #[warn(improper_ctypes)] on by default
Sep 06 04:19:20.304 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.304 INFO kablam! 
Sep 06 04:19:20.304 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.304 INFO kablam!    --> src/lib.rs:327:47
Sep 06 04:19:20.304 INFO kablam!     |
Sep 06 04:19:20.304 INFO kablam! 327 |                                     userdata: *mut Inner) -> i32;
Sep 06 04:19:20.304 INFO kablam!     |                                               ^^^^^^^^^^
Sep 06 04:19:20.304 INFO kablam!     |
Sep 06 04:19:20.304 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.304 INFO kablam! 
Sep 06 04:19:20.304 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.304 INFO kablam!    --> src/lib.rs:329:42
Sep 06 04:19:20.304 INFO kablam!     |
Sep 06 04:19:20.304 INFO kablam! 329 |                                      cb: Option<extern fn(i32, i32, i32, *mut Inner)>,
Sep 06 04:19:20.304 INFO kablam!     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.304 INFO kablam!     |
Sep 06 04:19:20.304 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.304 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:330:48
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 330 |                                      userdata: *mut Inner) -> i32;
Sep 06 04:19:20.305 INFO kablam!     |                                                ^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:342:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 342 | /         l.set_button_handler( |button, state, timestamp| {
Sep 06 04:19:20.305 INFO kablam! 343 | |             println!("Button press!");
Sep 06 04:19:20.305 INFO kablam! 344 | |         });
Sep 06 04:19:20.305 INFO kablam!     | |___________^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:347:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 347 |         l.move_motors(7, 90.0, 90.0, 90.0);
Sep 06 04:19:20.305 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:348:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 348 |         l.move_wait(7);
Sep 06 04:19:20.305 INFO kablam!     |         ^^^^^^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:349:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 349 |         l.move_motors(7, -90.0, -90.0, -90.0);
Sep 06 04:19:20.305 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:350:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 350 |         l.move_wait(7);
Sep 06 04:19:20.305 INFO kablam!     |         ^^^^^^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:351:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 351 |         l.unset_button_handler();
Sep 06 04:19:20.305 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:352:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 352 |         l.set_buzzer_frequency(440.0);
Sep 06 04:19:20.305 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.305 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 06 04:19:20.305 INFO kablam!    --> src/lib.rs:354:9
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam! 354 |         l.set_buzzer_frequency(0.0);
Sep 06 04:19:20.305 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 04:19:20.305 INFO kablam!     |
Sep 06 04:19:20.305 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 06 04:19:20.305 INFO kablam! 
Sep 06 04:19:20.314 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
Sep 06 04:19:20.316 INFO kablam! su: No module specific data is present
Sep 06 04:19:21.049 INFO running `"docker" "rm" "-f" "cfdf88f9d98f6d5bd161608fcc7ad3ca5e74c8792974b26f856e56151e4f5645"`
Sep 06 04:19:21.169 INFO blam! cfdf88f9d98f6d5bd161608fcc7ad3ca5e74c8792974b26f856e56151e4f5645