Jul 11 16:09:35.880 INFO checking KeepCalmAndLearnRust/object-factory-pattern against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 11 16:09:35.880 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 16:09:35.880 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 16:09:35.880 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-4/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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 +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 11 16:09:36.123 INFO blam! b18f0810f5a65c76435239eebe3941e0cfee16d03208402aa3d901bce4e17a47
Jul 11 16:09:36.125 INFO running `"docker" "start" "-a" "b18f0810f5a65c76435239eebe3941e0cfee16d03208402aa3d901bce4e17a47"`
Jul 11 16:09:37.107 INFO kablam!     Checking object-factory-pattern v0.1.0 (file:///source)
Jul 11 16:09:37.645 INFO kablam! warning: variable does not need to be mutable
Jul 11 16:09:37.645 INFO kablam!   --> src/main.rs:13:13
Jul 11 16:09:37.646 INFO kablam!    |
Jul 11 16:09:37.646 INFO kablam! 13 |         let mut pool = vec![];
Jul 11 16:09:37.646 INFO kablam!    |             ----^^^^
Jul 11 16:09:37.646 INFO kablam!    |             |
Jul 11 16:09:37.646 INFO kablam!    |             help: remove this `mut`
Jul 11 16:09:37.654 INFO kablam!    |
Jul 11 16:09:37.654 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 11 16:09:37.655 INFO kablam! 
Jul 11 16:09:37.664 INFO kablam! warning: method is never used: `return_conn`
Jul 11 16:09:37.664 INFO kablam!   --> src/main.rs:24:5
Jul 11 16:09:37.664 INFO kablam!    |
Jul 11 16:09:37.664 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Jul 11 16:09:37.664 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 11 16:09:37.670 INFO kablam!    |
Jul 11 16:09:37.671 INFO kablam!    = note: #[warn(dead_code)] on by default
Jul 11 16:09:37.671 INFO kablam! 
Jul 11 16:09:37.779 INFO kablam! warning: variable does not need to be mutable
Jul 11 16:09:37.779 INFO kablam!   --> src/main.rs:13:13
Jul 11 16:09:37.779 INFO kablam!    |
Jul 11 16:09:37.779 INFO kablam! 13 |         let mut pool = vec![];
Jul 11 16:09:37.779 INFO kablam!    |             ----^^^^
Jul 11 16:09:37.779 INFO kablam!    |             |
Jul 11 16:09:37.779 INFO kablam!    |             help: remove this `mut`
Jul 11 16:09:37.779 INFO kablam!    |
Jul 11 16:09:37.779 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 11 16:09:37.779 INFO kablam! 
Jul 11 16:09:37.799 INFO kablam! warning: method is never used: `return_conn`
Jul 11 16:09:37.799 INFO kablam!   --> src/main.rs:24:5
Jul 11 16:09:37.799 INFO kablam!    |
Jul 11 16:09:37.799 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Jul 11 16:09:37.799 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 11 16:09:37.799 INFO kablam!    |
Jul 11 16:09:37.799 INFO kablam!    = note: #[warn(dead_code)] on by default
Jul 11 16:09:37.799 INFO kablam! 
Jul 11 16:09:37.856 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Jul 11 16:09:37.865 INFO kablam! su: No module specific data is present
Jul 11 16:09:38.367 INFO running `"docker" "rm" "-f" "b18f0810f5a65c76435239eebe3941e0cfee16d03208402aa3d901bce4e17a47"`
Jul 11 16:09:38.537 INFO blam! b18f0810f5a65c76435239eebe3941e0cfee16d03208402aa3d901bce4e17a47