Sep 14 12:21:19.996 INFO checking octasonic-0.1.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 12:21:19.996 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 12:21:19.996 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-3/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 12:21:20.219 INFO blam! 148be1c4ecb1fd76c28b8f9f816fe58d3504fd6c133934f5f40ddc6b862658e7
Sep 14 12:21:20.221 INFO running `"docker" "start" "-a" "148be1c4ecb1fd76c28b8f9f816fe58d3504fd6c133934f5f40ddc6b862658e7"`
Sep 14 12:21:21.030 INFO kablam! usermod: no changes
Sep 14 12:21:21.081 INFO kablam!    Compiling nix v0.6.0
Sep 14 12:21:21.081 INFO kablam!     Checking spidev v0.2.1
Sep 14 12:21:24.567 INFO kablam!     Checking sysfs_gpio v0.4.4
Sep 14 12:21:25.183 INFO kablam!     Checking octasonic v0.1.0 (file:///source)
Sep 14 12:21:27.216 INFO kablam! warning: unused import: `std::thread::sleep`
Sep 14 12:21:27.216 INFO kablam!  --> examples/piano.rs:4:5
Sep 14 12:21:27.216 INFO kablam!   |
Sep 14 12:21:27.216 INFO kablam! 4 | use std::thread::sleep;
Sep 14 12:21:27.216 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 14 12:21:27.216 INFO kablam!   |
Sep 14 12:21:27.216 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 12:21:27.216 INFO kablam! 
Sep 14 12:21:27.217 INFO kablam! warning: unused import: `std::time::Duration`
Sep 14 12:21:27.217 INFO kablam!  --> examples/piano.rs:5:5
Sep 14 12:21:27.217 INFO kablam!   |
Sep 14 12:21:27.217 INFO kablam! 5 | use std::time::Duration;
Sep 14 12:21:27.217 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^
Sep 14 12:21:27.217 INFO kablam! 
Sep 14 12:21:27.290 INFO kablam! warning: unused import: `std::thread::sleep`
Sep 14 12:21:27.290 INFO kablam!  --> examples/theramin.rs:4:5
Sep 14 12:21:27.290 INFO kablam!   |
Sep 14 12:21:27.290 INFO kablam! 4 | use std::thread::sleep;
Sep 14 12:21:27.290 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^
Sep 14 12:21:27.290 INFO kablam!   |
Sep 14 12:21:27.290 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 12:21:27.290 INFO kablam! 
Sep 14 12:21:27.290 INFO kablam! warning: unused import: `std::time::Duration`
Sep 14 12:21:27.290 INFO kablam!  --> examples/theramin.rs:5:5
Sep 14 12:21:27.290 INFO kablam!   |
Sep 14 12:21:27.290 INFO kablam! 5 | use std::time::Duration;
Sep 14 12:21:27.290 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^
Sep 14 12:21:27.290 INFO kablam! 
Sep 14 12:21:27.509 INFO kablam! warning: field is never used: `playing`
Sep 14 12:21:27.509 INFO kablam!  --> examples/theramin.rs:8:3
Sep 14 12:21:27.509 INFO kablam!   |
Sep 14 12:21:27.509 INFO kablam! 8 |   playing: bool,
Sep 14 12:21:27.509 INFO kablam!   |   ^^^^^^^^^^^^^
Sep 14 12:21:27.516 INFO kablam!   |
Sep 14 12:21:27.516 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 14 12:21:27.517 INFO kablam! 
Sep 14 12:21:27.517 INFO kablam! warning: field is never used: `counter`
Sep 14 12:21:27.517 INFO kablam!  --> examples/theramin.rs:9:3
Sep 14 12:21:27.517 INFO kablam!   |
Sep 14 12:21:27.517 INFO kablam! 9 |   counter: u8
Sep 14 12:21:27.517 INFO kablam!   |   ^^^^^^^^^^^
Sep 14 12:21:27.517 INFO kablam! 
Sep 14 12:21:27.615 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.56s
Sep 14 12:21:27.631 INFO kablam! su: No module specific data is present
Sep 14 12:21:29.142 INFO running `"docker" "rm" "-f" "148be1c4ecb1fd76c28b8f9f816fe58d3504fd6c133934f5f40ddc6b862658e7"`
Sep 14 12:21:29.427 INFO blam! 148be1c4ecb1fd76c28b8f9f816fe58d3504fd6c133934f5f40ddc6b862658e7