Sep 01 17:28:11.948 INFO checking KeepCalmAndLearnRust/object-factory-pattern against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 01 17:28:11.948 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 17:28:11.948 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 17:28:12.106 INFO blam! eae816c5d037b16521d8995b52d1990c043461555a64a3eea167c1961f79cf55
Sep 01 17:28:12.112 INFO running `"docker" "start" "-a" "eae816c5d037b16521d8995b52d1990c043461555a64a3eea167c1961f79cf55"`
Sep 01 17:28:12.682 INFO kablam!     Checking object-factory-pattern v0.1.0 (file:///source)
Sep 01 17:28:12.979 INFO kablam! warning: variable does not need to be mutable
Sep 01 17:28:12.980 INFO kablam!   --> src/main.rs:13:13
Sep 01 17:28:12.980 INFO kablam!    |
Sep 01 17:28:12.980 INFO kablam! 13 |         let mut pool = vec![];
Sep 01 17:28:12.980 INFO kablam!    |             ----^^^^
Sep 01 17:28:12.980 INFO kablam!    |             |
Sep 01 17:28:12.980 INFO kablam!    |             help: remove this `mut`
Sep 01 17:28:12.980 INFO kablam!    |
Sep 01 17:28:12.980 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 17:28:12.980 INFO kablam! 
Sep 01 17:28:12.986 INFO kablam! warning: method is never used: `return_conn`
Sep 01 17:28:12.986 INFO kablam!   --> src/main.rs:24:5
Sep 01 17:28:12.986 INFO kablam!    |
Sep 01 17:28:12.986 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Sep 01 17:28:12.986 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 17:28:12.986 INFO kablam!    |
Sep 01 17:28:12.986 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 01 17:28:12.986 INFO kablam! 
Sep 01 17:28:13.028 INFO kablam! warning: variable does not need to be mutable
Sep 01 17:28:13.028 INFO kablam!   --> src/main.rs:13:13
Sep 01 17:28:13.028 INFO kablam!    |
Sep 01 17:28:13.029 INFO kablam! 13 |         let mut pool = vec![];
Sep 01 17:28:13.029 INFO kablam!    |             ----^^^^
Sep 01 17:28:13.029 INFO kablam!    |             |
Sep 01 17:28:13.029 INFO kablam!    |             help: remove this `mut`
Sep 01 17:28:13.029 INFO kablam!    |
Sep 01 17:28:13.029 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 17:28:13.029 INFO kablam! 
Sep 01 17:28:13.037 INFO kablam! warning: method is never used: `return_conn`
Sep 01 17:28:13.037 INFO kablam!   --> src/main.rs:24:5
Sep 01 17:28:13.037 INFO kablam!    |
Sep 01 17:28:13.037 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Sep 01 17:28:13.037 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 17:28:13.037 INFO kablam!    |
Sep 01 17:28:13.037 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 01 17:28:13.037 INFO kablam! 
Sep 01 17:28:13.052 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Sep 01 17:28:13.055 INFO kablam! su: No module specific data is present
Sep 01 17:28:13.393 INFO running `"docker" "rm" "-f" "eae816c5d037b16521d8995b52d1990c043461555a64a3eea167c1961f79cf55"`
Sep 01 17:28:13.488 INFO blam! eae816c5d037b16521d8995b52d1990c043461555a64a3eea167c1961f79cf55