Sep 14 06:13:50.509 INFO checking xi-rpc-0.2.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 06:13:50.509 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 06:13:50.509 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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=1000" "-e" "CMD=cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 06:13:50.653 INFO blam! 74324fdab8576226424fffddbd567df4f50c76cb09d1105d7bf24bd5a700bbf5
Sep 14 06:13:50.654 INFO running `"docker" "start" "-a" "74324fdab8576226424fffddbd567df4f50c76cb09d1105d7bf24bd5a700bbf5"`
Sep 14 06:13:51.295 INFO kablam! usermod: no changes
Sep 14 06:13:51.363 INFO kablam!     Checking num-traits v0.1.43
Sep 14 06:13:51.538 INFO kablam!     Checking serde_json v0.9.10
Sep 14 06:13:53.373 INFO kablam!     Checking xi-rpc v0.2.0 (file:///source)
Sep 14 06:13:53.879 INFO kablam! warning: variable does not need to be mutable
Sep 14 06:13:53.879 INFO kablam!    --> src/lib.rs:326:13
Sep 14 06:13:53.879 INFO kablam!     |
Sep 14 06:13:53.879 INFO kablam! 326 |         let mut dict = response.as_object_mut().unwrap();
Sep 14 06:13:53.879 INFO kablam!     |             ----^^^^
Sep 14 06:13:53.879 INFO kablam!     |             |
Sep 14 06:13:53.879 INFO kablam!     |             help: remove this `mut`
Sep 14 06:13:53.883 INFO kablam!     |
Sep 14 06:13:53.883 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 14 06:13:53.883 INFO kablam! 
Sep 14 06:13:53.887 INFO kablam! warning: variable does not need to be mutable
Sep 14 06:13:53.887 INFO kablam!    --> src/lib.rs:393:9
Sep 14 06:13:53.887 INFO kablam!     |
Sep 14 06:13:53.887 INFO kablam! 393 |     let mut dict_ref = dict.as_object_mut().expect("dict_add_value passed non-object.");
Sep 14 06:13:53.887 INFO kablam!     |         ----^^^^^^^^
Sep 14 06:13:53.887 INFO kablam!     |         |
Sep 14 06:13:53.887 INFO kablam!     |         help: remove this `mut`
Sep 14 06:13:53.887 INFO kablam! 
Sep 14 06:13:54.007 INFO kablam! warning: variable does not need to be mutable
Sep 14 06:13:54.007 INFO kablam!    --> src/lib.rs:326:13
Sep 14 06:13:54.007 INFO kablam!     |
Sep 14 06:13:54.007 INFO kablam! 326 |         let mut dict = response.as_object_mut().unwrap();
Sep 14 06:13:54.007 INFO kablam!     |             ----^^^^
Sep 14 06:13:54.007 INFO kablam!     |             |
Sep 14 06:13:54.007 INFO kablam!     |             help: remove this `mut`
Sep 14 06:13:54.007 INFO kablam!     |
Sep 14 06:13:54.007 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 14 06:13:54.007 INFO kablam! 
Sep 14 06:13:54.009 INFO kablam! warning: variable does not need to be mutable
Sep 14 06:13:54.010 INFO kablam!    --> src/lib.rs:393:9
Sep 14 06:13:54.010 INFO kablam!     |
Sep 14 06:13:54.010 INFO kablam! 393 |     let mut dict_ref = dict.as_object_mut().expect("dict_add_value passed non-object.");
Sep 14 06:13:54.010 INFO kablam!     |         ----^^^^^^^^
Sep 14 06:13:54.010 INFO kablam!     |         |
Sep 14 06:13:54.010 INFO kablam!     |         help: remove this `mut`
Sep 14 06:13:54.010 INFO kablam! 
Sep 14 06:13:54.321 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.99s
Sep 14 06:13:54.322 INFO kablam! su: No module specific data is present
Sep 14 06:13:54.911 INFO running `"docker" "rm" "-f" "74324fdab8576226424fffddbd567df4f50c76cb09d1105d7bf24bd5a700bbf5"`
Sep 14 06:13:55.004 INFO blam! 74324fdab8576226424fffddbd567df4f50c76cb09d1105d7bf24bd5a700bbf5