Sep 04 00:20:51.623 INFO checking KeepCalmAndLearnRust/object-factory-pattern against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 00:20:51.623 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 00:20:51.623 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 00:20:51.834 INFO blam! 9f4f7726e4f052762d65a0ce0a575152bb51fa64620f6247a51dde56afaf125e
Sep 04 00:20:51.836 INFO running `"docker" "start" "-a" "9f4f7726e4f052762d65a0ce0a575152bb51fa64620f6247a51dde56afaf125e"`
Sep 04 00:20:52.464 INFO kablam!     Checking object-factory-pattern v0.1.0 (file:///source)
Sep 04 00:20:52.756 INFO kablam! warning: variable does not need to be mutable
Sep 04 00:20:52.756 INFO kablam!   --> src/main.rs:13:13
Sep 04 00:20:52.756 INFO kablam!    |
Sep 04 00:20:52.756 INFO kablam! 13 |         let mut pool = vec![];
Sep 04 00:20:52.756 INFO kablam!    |             ----^^^^
Sep 04 00:20:52.756 INFO kablam!    |             |
Sep 04 00:20:52.756 INFO kablam!    |             help: remove this `mut`
Sep 04 00:20:52.756 INFO kablam!    |
Sep 04 00:20:52.757 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 00:20:52.757 INFO kablam! 
Sep 04 00:20:52.765 INFO kablam! warning: method is never used: `return_conn`
Sep 04 00:20:52.765 INFO kablam!   --> src/main.rs:24:5
Sep 04 00:20:52.765 INFO kablam!    |
Sep 04 00:20:52.765 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Sep 04 00:20:52.765 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 00:20:52.765 INFO kablam!    |
Sep 04 00:20:52.765 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 04 00:20:52.765 INFO kablam! 
Sep 04 00:20:52.870 INFO kablam! warning: variable does not need to be mutable
Sep 04 00:20:52.870 INFO kablam!   --> src/main.rs:13:13
Sep 04 00:20:52.870 INFO kablam!    |
Sep 04 00:20:52.870 INFO kablam! 13 |         let mut pool = vec![];
Sep 04 00:20:52.870 INFO kablam!    |             ----^^^^
Sep 04 00:20:52.870 INFO kablam!    |             |
Sep 04 00:20:52.870 INFO kablam!    |             help: remove this `mut`
Sep 04 00:20:52.870 INFO kablam!    |
Sep 04 00:20:52.870 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 00:20:52.870 INFO kablam! 
Sep 04 00:20:52.874 INFO kablam! warning: method is never used: `return_conn`
Sep 04 00:20:52.874 INFO kablam!   --> src/main.rs:24:5
Sep 04 00:20:52.875 INFO kablam!    |
Sep 04 00:20:52.875 INFO kablam! 24 |     fn return_conn(&mut self, conn: T) {
Sep 04 00:20:52.875 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 04 00:20:52.875 INFO kablam!    |
Sep 04 00:20:52.875 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 04 00:20:52.875 INFO kablam! 
Sep 04 00:20:52.889 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Sep 04 00:20:52.891 INFO kablam! su: No module specific data is present
Sep 04 00:20:53.302 INFO running `"docker" "rm" "-f" "9f4f7726e4f052762d65a0ce0a575152bb51fa64620f6247a51dde56afaf125e"`
Sep 04 00:20:53.405 INFO blam! 9f4f7726e4f052762d65a0ce0a575152bb51fa64620f6247a51dde56afaf125e