Aug 01 17:51:03.408 INFO checking KeepCalmAndLearnRust/object-factory-pattern against 1.27.2+tmplazy for lazy_static-1
Aug 01 17:51:03.408 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:51:03.408 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 17:51:03.408 INFO running `"docker" "create" "-v" "/tmp/crater.VtKG5W8Ijt5s:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2+tmplazy:/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 17:51:03.647 INFO blam! f36962c24df5ae262295c47a23113bfc03bf2fac2499589e3fd919aca295e91a
Aug 01 17:51:03.649 INFO running `"docker" "start" "-a" "f36962c24df5ae262295c47a23113bfc03bf2fac2499589e3fd919aca295e91a"`
Aug 01 17:51:04.649 INFO kablam!     Checking object-factory-pattern v0.1.0 (file:///source)
Aug 01 17:51:05.431 INFO kablam! warning: variable does not need to be mutable
Aug 01 17:51:05.431 INFO kablam!   --> src/main.rs:13:13
Aug 01 17:51:05.431 INFO kablam!    |
Aug 01 17:51:05.431 INFO kablam! 13 |         let mut pool = vec![];
Aug 01 17:51:05.431 INFO kablam!    |             ----^^^^
Aug 01 17:51:05.431 INFO kablam!    |             |
Aug 01 17:51:05.431 INFO kablam!    |             help: remove this `mut`
Aug 01 17:51:05.431 INFO kablam!    |
Aug 01 17:51:05.431 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 01 17:51:05.431 INFO kablam! 
Aug 01 17:51:05.449 INFO kablam! warning: method is never used: `return_conn`
Aug 01 17:51:05.449 INFO kablam!   --> src/main.rs:24:5
Aug 01 17:51:05.449 INFO kablam!    |
Aug 01 17:51:05.449 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Aug 01 17:51:05.449 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:51:05.449 INFO kablam!    |
Aug 01 17:51:05.453 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 01 17:51:05.457 INFO kablam! 
Aug 01 17:51:05.707 INFO kablam! warning: variable does not need to be mutable
Aug 01 17:51:05.707 INFO kablam!   --> src/main.rs:13:13
Aug 01 17:51:05.707 INFO kablam!    |
Aug 01 17:51:05.707 INFO kablam! 13 |         let mut pool = vec![];
Aug 01 17:51:05.707 INFO kablam!    |             ----^^^^
Aug 01 17:51:05.707 INFO kablam!    |             |
Aug 01 17:51:05.707 INFO kablam!    |             help: remove this `mut`
Aug 01 17:51:05.707 INFO kablam!    |
Aug 01 17:51:05.707 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 01 17:51:05.707 INFO kablam! 
Aug 01 17:51:05.722 INFO kablam! warning: method is never used: `return_conn`
Aug 01 17:51:05.723 INFO kablam!   --> src/main.rs:24:5
Aug 01 17:51:05.723 INFO kablam!    |
Aug 01 17:51:05.723 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Aug 01 17:51:05.723 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 17:51:05.723 INFO kablam!    |
Aug 01 17:51:05.723 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 01 17:51:05.723 INFO kablam! 
Aug 01 17:51:05.755 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Aug 01 17:51:05.762 INFO kablam! su: No module specific data is present
Aug 01 17:51:06.322 INFO running `"docker" "rm" "-f" "f36962c24df5ae262295c47a23113bfc03bf2fac2499589e3fd919aca295e91a"`
Aug 01 17:51:06.490 INFO blam! f36962c24df5ae262295c47a23113bfc03bf2fac2499589e3fd919aca295e91a