Aug 31 22:31:22.271 INFO checking linkbot-0.0.2 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 22:31:22.271 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 22:31:22.271 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-2/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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=500" "-e" "CMD=cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 22:31:22.433 INFO blam! 34212ac4496819430136d9c3efb4f4a752e1604b8a386a97b2fc9f7da47db9ae
Aug 31 22:31:22.436 INFO running `"docker" "start" "-a" "34212ac4496819430136d9c3efb4f4a752e1604b8a386a97b2fc9f7da47db9ae"`
Aug 31 22:31:23.141 INFO kablam!     Checking linkbot v0.0.2 (file:///source)
Aug 31 22:31:23.751 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.751 INFO kablam!    --> src/lib.rs:326:41
Aug 31 22:31:23.751 INFO kablam!     |
Aug 31 22:31:23.751 INFO kablam! 326 |                                     cb: extern fn(i32, i32, i32, *mut Inner),
Aug 31 22:31:23.751 INFO kablam!     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.751 INFO kablam!     |
Aug 31 22:31:23.751 INFO kablam!     = note: #[warn(improper_ctypes)] on by default
Aug 31 22:31:23.751 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.751 INFO kablam! 
Aug 31 22:31:23.751 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.751 INFO kablam!    --> src/lib.rs:327:47
Aug 31 22:31:23.752 INFO kablam!     |
Aug 31 22:31:23.752 INFO kablam! 327 |                                     userdata: *mut Inner) -> i32;
Aug 31 22:31:23.752 INFO kablam!     |                                               ^^^^^^^^^^
Aug 31 22:31:23.752 INFO kablam!     |
Aug 31 22:31:23.752 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.752 INFO kablam! 
Aug 31 22:31:23.752 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.752 INFO kablam!    --> src/lib.rs:329:42
Aug 31 22:31:23.752 INFO kablam!     |
Aug 31 22:31:23.752 INFO kablam! 329 |                                      cb: Option<extern fn(i32, i32, i32, *mut Inner)>,
Aug 31 22:31:23.752 INFO kablam!     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.752 INFO kablam!     |
Aug 31 22:31:23.752 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.752 INFO kablam! 
Aug 31 22:31:23.752 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.753 INFO kablam!    --> src/lib.rs:330:48
Aug 31 22:31:23.753 INFO kablam!     |
Aug 31 22:31:23.753 INFO kablam! 330 |                                      userdata: *mut Inner) -> i32;
Aug 31 22:31:23.753 INFO kablam!     |                                                ^^^^^^^^^^
Aug 31 22:31:23.753 INFO kablam!     |
Aug 31 22:31:23.753 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.753 INFO kablam! 
Aug 31 22:31:23.928 INFO kablam! warning: unused variable: `button`
Aug 31 22:31:23.928 INFO kablam!    --> src/lib.rs:342:32
Aug 31 22:31:23.928 INFO kablam!     |
Aug 31 22:31:23.928 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Aug 31 22:31:23.928 INFO kablam!     |                                ^^^^^^ help: consider using `_button` instead
Aug 31 22:31:23.928 INFO kablam!     |
Aug 31 22:31:23.928 INFO kablam!     = note: #[warn(unused_variables)] on by default
Aug 31 22:31:23.928 INFO kablam! 
Aug 31 22:31:23.928 INFO kablam! warning: unused variable: `state`
Aug 31 22:31:23.928 INFO kablam!    --> src/lib.rs:342:40
Aug 31 22:31:23.928 INFO kablam!     |
Aug 31 22:31:23.929 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Aug 31 22:31:23.929 INFO kablam!     |                                        ^^^^^ help: consider using `_state` instead
Aug 31 22:31:23.929 INFO kablam! 
Aug 31 22:31:23.929 INFO kablam! warning: unused variable: `timestamp`
Aug 31 22:31:23.929 INFO kablam!    --> src/lib.rs:342:47
Aug 31 22:31:23.929 INFO kablam!     |
Aug 31 22:31:23.929 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Aug 31 22:31:23.929 INFO kablam!     |                                               ^^^^^^^^^ help: consider using `_timestamp` instead
Aug 31 22:31:23.929 INFO kablam! 
Aug 31 22:31:23.949 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.949 INFO kablam!    --> src/lib.rs:326:41
Aug 31 22:31:23.949 INFO kablam!     |
Aug 31 22:31:23.949 INFO kablam! 326 |                                     cb: extern fn(i32, i32, i32, *mut Inner),
Aug 31 22:31:23.949 INFO kablam!     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.949 INFO kablam!     |
Aug 31 22:31:23.949 INFO kablam!     = note: #[warn(improper_ctypes)] on by default
Aug 31 22:31:23.949 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.949 INFO kablam! 
Aug 31 22:31:23.949 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.949 INFO kablam!    --> src/lib.rs:327:47
Aug 31 22:31:23.949 INFO kablam!     |
Aug 31 22:31:23.949 INFO kablam! 327 |                                     userdata: *mut Inner) -> i32;
Aug 31 22:31:23.949 INFO kablam!     |                                               ^^^^^^^^^^
Aug 31 22:31:23.949 INFO kablam!     |
Aug 31 22:31:23.949 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.949 INFO kablam! 
Aug 31 22:31:23.949 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.949 INFO kablam!    --> src/lib.rs:329:42
Aug 31 22:31:23.949 INFO kablam!     |
Aug 31 22:31:23.949 INFO kablam! 329 |                                      cb: Option<extern fn(i32, i32, i32, *mut Inner)>,
Aug 31 22:31:23.949 INFO kablam!     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.949 INFO kablam!     |
Aug 31 22:31:23.949 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.949 INFO kablam! 
Aug 31 22:31:23.950 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Aug 31 22:31:23.950 INFO kablam!    --> src/lib.rs:330:48
Aug 31 22:31:23.950 INFO kablam!     |
Aug 31 22:31:23.950 INFO kablam! 330 |                                      userdata: *mut Inner) -> i32;
Aug 31 22:31:23.950 INFO kablam!     |                                                ^^^^^^^^^^
Aug 31 22:31:23.950 INFO kablam!     |
Aug 31 22:31:23.950 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Aug 31 22:31:23.950 INFO kablam! 
Aug 31 22:31:23.950 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.950 INFO kablam!    --> src/lib.rs:342:9
Aug 31 22:31:23.950 INFO kablam!     |
Aug 31 22:31:23.950 INFO kablam! 342 | /         l.set_button_handler( |button, state, timestamp| {
Aug 31 22:31:23.950 INFO kablam! 343 | |             println!("Button press!");
Aug 31 22:31:23.950 INFO kablam! 344 | |         });
Aug 31 22:31:23.950 INFO kablam!     | |___________^
Aug 31 22:31:23.950 INFO kablam!     |
Aug 31 22:31:23.950 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 31 22:31:23.950 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.950 INFO kablam! 
Aug 31 22:31:23.950 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.950 INFO kablam!    --> src/lib.rs:347:9
Aug 31 22:31:23.950 INFO kablam!     |
Aug 31 22:31:23.950 INFO kablam! 347 |         l.move_motors(7, 90.0, 90.0, 90.0);
Aug 31 22:31:23.950 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.950 INFO kablam!     |
Aug 31 22:31:23.951 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.951 INFO kablam! 
Aug 31 22:31:23.951 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.951 INFO kablam!    --> src/lib.rs:348:9
Aug 31 22:31:23.951 INFO kablam!     |
Aug 31 22:31:23.951 INFO kablam! 348 |         l.move_wait(7);
Aug 31 22:31:23.951 INFO kablam!     |         ^^^^^^^^^^^^^^^
Aug 31 22:31:23.951 INFO kablam!     |
Aug 31 22:31:23.951 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.951 INFO kablam! 
Aug 31 22:31:23.951 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.951 INFO kablam!    --> src/lib.rs:349:9
Aug 31 22:31:23.951 INFO kablam!     |
Aug 31 22:31:23.951 INFO kablam! 349 |         l.move_motors(7, -90.0, -90.0, -90.0);
Aug 31 22:31:23.951 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.951 INFO kablam!     |
Aug 31 22:31:23.951 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.951 INFO kablam! 
Aug 31 22:31:23.951 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.951 INFO kablam!    --> src/lib.rs:350:9
Aug 31 22:31:23.952 INFO kablam!     |
Aug 31 22:31:23.952 INFO kablam! 350 |         l.move_wait(7);
Aug 31 22:31:23.952 INFO kablam!     |         ^^^^^^^^^^^^^^^
Aug 31 22:31:23.952 INFO kablam!     |
Aug 31 22:31:23.952 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.952 INFO kablam! 
Aug 31 22:31:23.952 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.952 INFO kablam!    --> src/lib.rs:351:9
Aug 31 22:31:23.952 INFO kablam!     |
Aug 31 22:31:23.952 INFO kablam! 351 |         l.unset_button_handler();
Aug 31 22:31:23.952 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.952 INFO kablam!     |
Aug 31 22:31:23.952 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.952 INFO kablam! 
Aug 31 22:31:23.952 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.952 INFO kablam!    --> src/lib.rs:352:9
Aug 31 22:31:23.952 INFO kablam!     |
Aug 31 22:31:23.952 INFO kablam! 352 |         l.set_buzzer_frequency(440.0);
Aug 31 22:31:23.952 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.953 INFO kablam!     |
Aug 31 22:31:23.953 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.953 INFO kablam! 
Aug 31 22:31:23.953 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 31 22:31:23.953 INFO kablam!    --> src/lib.rs:354:9
Aug 31 22:31:23.953 INFO kablam!     |
Aug 31 22:31:23.953 INFO kablam! 354 |         l.set_buzzer_frequency(0.0);
Aug 31 22:31:23.953 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 31 22:31:23.953 INFO kablam!     |
Aug 31 22:31:23.953 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 31 22:31:23.953 INFO kablam! 
Aug 31 22:31:23.965 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
Aug 31 22:31:23.967 INFO kablam! su: No module specific data is present
Aug 31 22:31:24.614 INFO running `"docker" "rm" "-f" "34212ac4496819430136d9c3efb4f4a752e1604b8a386a97b2fc9f7da47db9ae"`
Aug 31 22:31:24.718 INFO blam! 34212ac4496819430136d9c3efb4f4a752e1604b8a386a97b2fc9f7da47db9ae