Oct 12 15:39:16.691 INFO checking piotr-m-jurek/rust-invaders against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 15:39:16.691 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 15:39:17.090 INFO blam! b0803c4e24db4166bea82d633e41ecec34d69f1347c4ca10c7e1b22657e56bbf
Oct 12 15:39:17.092 INFO running `"docker" "start" "-a" "b0803c4e24db4166bea82d633e41ecec34d69f1347c4ca10c7e1b22657e56bbf"`
Oct 12 15:39:18.312 INFO kablam! usermod: no changes
Oct 12 15:39:18.396 INFO kablam!     Checking rust-invaders v0.1.0 (/source)
Oct 12 15:39:18.864 INFO kablam! warning: struct is never constructed: `Cpu`
Oct 12 15:39:18.865 INFO kablam!   --> src/main.rs:23:1
Oct 12 15:39:18.865 INFO kablam!    |
Oct 12 15:39:18.866 INFO kablam! 23 | struct Cpu {
Oct 12 15:39:18.866 INFO kablam!    | ^^^^^^^^^^
Oct 12 15:39:18.866 INFO kablam!    |
Oct 12 15:39:18.866 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 15:39:18.867 INFO kablam! 
Oct 12 15:39:18.867 INFO kablam! warning: method is never used: `new`
Oct 12 15:39:18.867 INFO kablam!   --> src/main.rs:29:5
Oct 12 15:39:18.868 INFO kablam!    |
Oct 12 15:39:18.868 INFO kablam! 29 |     pub fn new () -> Cpu {
Oct 12 15:39:18.868 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 15:39:18.869 INFO kablam! 
Oct 12 15:39:18.869 INFO kablam! warning: structure field `PC` should have a snake case name such as `pc`
Oct 12 15:39:18.869 INFO kablam!   --> src/main.rs:24:5
Oct 12 15:39:18.870 INFO kablam!    |
Oct 12 15:39:18.870 INFO kablam! 24 |     PC: u16,
Oct 12 15:39:18.870 INFO kablam!    |     ^^^^^^^
Oct 12 15:39:18.870 INFO kablam!    |
Oct 12 15:39:18.871 INFO kablam!    = note: #[warn(non_snake_case)] on by default
Oct 12 15:39:18.871 INFO kablam! 
Oct 12 15:39:19.000 INFO kablam! warning: struct is never constructed: `Cpu`
Oct 12 15:39:19.001 INFO kablam!   --> src/main.rs:23:1
Oct 12 15:39:19.001 INFO kablam!    |
Oct 12 15:39:19.001 INFO kablam! 23 | struct Cpu {
Oct 12 15:39:19.002 INFO kablam!    | ^^^^^^^^^^
Oct 12 15:39:19.002 INFO kablam!    |
Oct 12 15:39:19.002 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 15:39:19.003 INFO kablam! 
Oct 12 15:39:19.003 INFO kablam! warning: method is never used: `new`
Oct 12 15:39:19.003 INFO kablam!   --> src/main.rs:29:5
Oct 12 15:39:19.004 INFO kablam!    |
Oct 12 15:39:19.004 INFO kablam! 29 |     pub fn new () -> Cpu {
Oct 12 15:39:19.004 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Oct 12 15:39:19.004 INFO kablam! 
Oct 12 15:39:19.005 INFO kablam! warning: structure field `PC` should have a snake case name such as `pc`
Oct 12 15:39:19.005 INFO kablam!   --> src/main.rs:24:5
Oct 12 15:39:19.005 INFO kablam!    |
Oct 12 15:39:19.006 INFO kablam! 24 |     PC: u16,
Oct 12 15:39:19.006 INFO kablam!    |     ^^^^^^^
Oct 12 15:39:19.006 INFO kablam!    |
Oct 12 15:39:19.007 INFO kablam!    = note: #[warn(non_snake_case)] on by default
Oct 12 15:39:19.007 INFO kablam! 
Oct 12 15:39:19.028 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Oct 12 15:39:19.037 INFO kablam! su: No module specific data is present
Oct 12 15:39:19.760 INFO running `"docker" "rm" "-f" "b0803c4e24db4166bea82d633e41ecec34d69f1347c4ca10c7e1b22657e56bbf"`
Oct 12 15:39:20.068 INFO blam! b0803c4e24db4166bea82d633e41ecec34d69f1347c4ca10c7e1b22657e56bbf