Aug 01 17:51:04.723 INFO checking KeepCalmAndLearnRust/object-factory-pattern against 1.27.2 for lazy_static-1
Aug 01 17:51:04.723 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:51:04.723 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:51:04.723 INFO running `"docker" "create" "-v" "/tmp/crater.V51QSgrUJyvl:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 17:51:04.939 INFO blam! 0f7cb80fc02e2efe687d3637ca86c5246db482c0d2d7a1f956f9fca26b65921f
Aug 01 17:51:04.942 INFO running `"docker" "start" "-a" "0f7cb80fc02e2efe687d3637ca86c5246db482c0d2d7a1f956f9fca26b65921f"`
Aug 01 17:51:05.922 INFO kablam!     Checking object-factory-pattern v0.1.0 (file:///source)
Aug 01 17:51:06.501 INFO kablam! warning: variable does not need to be mutable
Aug 01 17:51:06.501 INFO kablam!   --> src/main.rs:13:13
Aug 01 17:51:06.501 INFO kablam!    |
Aug 01 17:51:06.501 INFO kablam! 13 |         let mut pool = vec![];
Aug 01 17:51:06.501 INFO kablam!    |             ----^^^^
Aug 01 17:51:06.501 INFO kablam!    |             |
Aug 01 17:51:06.501 INFO kablam!    |             help: remove this `mut`
Aug 01 17:51:06.501 INFO kablam!    |
Aug 01 17:51:06.501 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 01 17:51:06.501 INFO kablam! 
Aug 01 17:51:06.511 INFO kablam! warning: method is never used: `return_conn`
Aug 01 17:51:06.511 INFO kablam!   --> src/main.rs:24:5
Aug 01 17:51:06.511 INFO kablam!    |
Aug 01 17:51:06.511 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Aug 01 17:51:06.511 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:51:06.511 INFO kablam!    |
Aug 01 17:51:06.511 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 01 17:51:06.511 INFO kablam! 
Aug 01 17:51:06.525 INFO kablam! warning: variable does not need to be mutable
Aug 01 17:51:06.525 INFO kablam!   --> src/main.rs:13:13
Aug 01 17:51:06.525 INFO kablam!    |
Aug 01 17:51:06.525 INFO kablam! 13 |         let mut pool = vec![];
Aug 01 17:51:06.525 INFO kablam!    |             ----^^^^
Aug 01 17:51:06.525 INFO kablam!    |             |
Aug 01 17:51:06.525 INFO kablam!    |             help: remove this `mut`
Aug 01 17:51:06.525 INFO kablam!    |
Aug 01 17:51:06.525 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 01 17:51:06.525 INFO kablam! 
Aug 01 17:51:06.543 INFO kablam! warning: method is never used: `return_conn`
Aug 01 17:51:06.543 INFO kablam!   --> src/main.rs:24:5
Aug 01 17:51:06.543 INFO kablam!    |
Aug 01 17:51:06.543 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Aug 01 17:51:06.543 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:51:06.543 INFO kablam!    |
Aug 01 17:51:06.543 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 01 17:51:06.543 INFO kablam! 
Aug 01 17:51:06.585 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
Aug 01 17:51:06.591 INFO kablam! su: No module specific data is present
Aug 01 17:51:07.178 INFO running `"docker" "rm" "-f" "0f7cb80fc02e2efe687d3637ca86c5246db482c0d2d7a1f956f9fca26b65921f"`
Aug 01 17:51:07.360 INFO blam! 0f7cb80fc02e2efe687d3637ca86c5246db482c0d2d7a1f956f9fca26b65921f