Sep 21 07:31:37.654 INFO checking linkbot-0.0.2 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 07:31:37.654 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 07:31:37.654 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-2/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 07:31:37.791 INFO blam! 1e01228b93d8d130ee8b75a9020d5802752d71721daa23f882538053f7187290
Sep 21 07:31:37.793 INFO running `"docker" "start" "-a" "1e01228b93d8d130ee8b75a9020d5802752d71721daa23f882538053f7187290"`
Sep 21 07:31:38.531 INFO kablam! usermod: no changes
Sep 21 07:31:38.558 INFO kablam!     Checking linkbot v0.0.2 (/source)
Sep 21 07:31:38.962 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.962 INFO kablam!    --> src/lib.rs:326:41
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam! 326 |                                     cb: extern fn(i32, i32, i32, *mut Inner),
Sep 21 07:31:38.962 INFO kablam!     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam!     = note: #[warn(improper_ctypes)] on by default
Sep 21 07:31:38.962 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.962 INFO kablam! 
Sep 21 07:31:38.962 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.962 INFO kablam!    --> src/lib.rs:327:47
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam! 327 |                                     userdata: *mut Inner) -> i32;
Sep 21 07:31:38.962 INFO kablam!     |                                               ^^^^^^^^^^
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.962 INFO kablam! 
Sep 21 07:31:38.962 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.962 INFO kablam!    --> src/lib.rs:329:42
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam! 329 |                                      cb: Option<extern fn(i32, i32, i32, *mut Inner)>,
Sep 21 07:31:38.962 INFO kablam!     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.962 INFO kablam! 
Sep 21 07:31:38.962 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.962 INFO kablam!    --> src/lib.rs:330:48
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam! 330 |                                      userdata: *mut Inner) -> i32;
Sep 21 07:31:38.962 INFO kablam!     |                                                ^^^^^^^^^^
Sep 21 07:31:38.962 INFO kablam!     |
Sep 21 07:31:38.962 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.962 INFO kablam! 
Sep 21 07:31:38.963 INFO kablam! warning: unused variable: `button`
Sep 21 07:31:38.963 INFO kablam!    --> src/lib.rs:342:32
Sep 21 07:31:38.963 INFO kablam!     |
Sep 21 07:31:38.963 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Sep 21 07:31:38.964 INFO kablam!     |                                ^^^^^^ help: consider using `_button` instead
Sep 21 07:31:38.964 INFO kablam!     |
Sep 21 07:31:38.964 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 21 07:31:38.964 INFO kablam! 
Sep 21 07:31:38.964 INFO kablam! warning: unused variable: `state`
Sep 21 07:31:38.964 INFO kablam!    --> src/lib.rs:342:40
Sep 21 07:31:38.964 INFO kablam!     |
Sep 21 07:31:38.964 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Sep 21 07:31:38.964 INFO kablam!     |                                        ^^^^^ help: consider using `_state` instead
Sep 21 07:31:38.964 INFO kablam! 
Sep 21 07:31:38.965 INFO kablam! warning: unused variable: `timestamp`
Sep 21 07:31:38.965 INFO kablam!    --> src/lib.rs:342:47
Sep 21 07:31:38.965 INFO kablam!     |
Sep 21 07:31:38.965 INFO kablam! 342 |         l.set_button_handler( |button, state, timestamp| {
Sep 21 07:31:38.965 INFO kablam!     |                                               ^^^^^^^^^ help: consider using `_timestamp` instead
Sep 21 07:31:38.965 INFO kablam! 
Sep 21 07:31:38.976 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.976 INFO kablam!    --> src/lib.rs:326:41
Sep 21 07:31:38.976 INFO kablam!     |
Sep 21 07:31:38.976 INFO kablam! 326 |                                     cb: extern fn(i32, i32, i32, *mut Inner),
Sep 21 07:31:38.976 INFO kablam!     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.976 INFO kablam!     |
Sep 21 07:31:38.976 INFO kablam!     = note: #[warn(improper_ctypes)] on by default
Sep 21 07:31:38.976 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.976 INFO kablam! 
Sep 21 07:31:38.976 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.976 INFO kablam!    --> src/lib.rs:327:47
Sep 21 07:31:38.976 INFO kablam!     |
Sep 21 07:31:38.976 INFO kablam! 327 |                                     userdata: *mut Inner) -> i32;
Sep 21 07:31:38.976 INFO kablam!     |                                               ^^^^^^^^^^
Sep 21 07:31:38.976 INFO kablam!     |
Sep 21 07:31:38.976 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.976 INFO kablam! 
Sep 21 07:31:38.981 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.981 INFO kablam!    --> src/lib.rs:329:42
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam! 329 |                                      cb: Option<extern fn(i32, i32, i32, *mut Inner)>,
Sep 21 07:31:38.981 INFO kablam!     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.981 INFO kablam! 
Sep 21 07:31:38.981 INFO kablam! warning: `extern` block uses type `std::sync::Mutex<u8>` which is not FFI-safe: this struct has unspecified layout
Sep 21 07:31:38.981 INFO kablam!    --> src/lib.rs:330:48
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam! 330 |                                      userdata: *mut Inner) -> i32;
Sep 21 07:31:38.981 INFO kablam!     |                                                ^^^^^^^^^^
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam!     = help: consider adding a #[repr(C)] or #[repr(transparent)] attribute to this struct
Sep 21 07:31:38.981 INFO kablam! 
Sep 21 07:31:38.981 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.981 INFO kablam!    --> src/lib.rs:342:9
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam! 342 | /         l.set_button_handler( |button, state, timestamp| {
Sep 21 07:31:38.981 INFO kablam! 343 | |             println!("Button press!");
Sep 21 07:31:38.981 INFO kablam! 344 | |         });
Sep 21 07:31:38.981 INFO kablam!     | |___________^
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 21 07:31:38.981 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.981 INFO kablam! 
Sep 21 07:31:38.981 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.981 INFO kablam!    --> src/lib.rs:347:9
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam! 347 |         l.move_motors(7, 90.0, 90.0, 90.0);
Sep 21 07:31:38.981 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.981 INFO kablam! 
Sep 21 07:31:38.981 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.981 INFO kablam!    --> src/lib.rs:348:9
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam! 348 |         l.move_wait(7);
Sep 21 07:31:38.981 INFO kablam!     |         ^^^^^^^^^^^^^^^
Sep 21 07:31:38.981 INFO kablam!     |
Sep 21 07:31:38.981 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.981 INFO kablam! 
Sep 21 07:31:38.982 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.982 INFO kablam!    --> src/lib.rs:349:9
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam! 349 |         l.move_motors(7, -90.0, -90.0, -90.0);
Sep 21 07:31:38.982 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.982 INFO kablam! 
Sep 21 07:31:38.982 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.982 INFO kablam!    --> src/lib.rs:350:9
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam! 350 |         l.move_wait(7);
Sep 21 07:31:38.982 INFO kablam!     |         ^^^^^^^^^^^^^^^
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.982 INFO kablam! 
Sep 21 07:31:38.982 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.982 INFO kablam!    --> src/lib.rs:351:9
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam! 351 |         l.unset_button_handler();
Sep 21 07:31:38.982 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.982 INFO kablam! 
Sep 21 07:31:38.982 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.982 INFO kablam!    --> src/lib.rs:352:9
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam! 352 |         l.set_buzzer_frequency(440.0);
Sep 21 07:31:38.982 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.982 INFO kablam! 
Sep 21 07:31:38.982 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 21 07:31:38.982 INFO kablam!    --> src/lib.rs:354:9
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam! 354 |         l.set_buzzer_frequency(0.0);
Sep 21 07:31:38.982 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 07:31:38.982 INFO kablam!     |
Sep 21 07:31:38.982 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 21 07:31:38.982 INFO kablam! 
Sep 21 07:31:38.992 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Sep 21 07:31:38.994 INFO kablam! su: No module specific data is present
Sep 21 07:31:39.765 INFO running `"docker" "rm" "-f" "1e01228b93d8d130ee8b75a9020d5802752d71721daa23f882538053f7187290"`
Sep 21 07:31:39.818 INFO blam! 1e01228b93d8d130ee8b75a9020d5802752d71721daa23f882538053f7187290