Aug 31 15:24:01.155 INFO checking rust_lsp-0.6.1 against try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b for pr-53578
Aug 31 15:24:01.155 INFO running: cargo +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets
Aug 31 15:24:01.155 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-1/try#a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b:/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 +a5b9f2cc0cdaca8edf23a89c649279de2c91cd3b-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 15:24:01.378 INFO blam! d6102d8865523a6e2e5b2093d2c58db452fc14bba10d5212c75637bbe718f91f
Aug 31 15:24:01.380 INFO running `"docker" "start" "-a" "d6102d8865523a6e2e5b2093d2c58db452fc14bba10d5212c75637bbe718f91f"`
Aug 31 15:24:02.297 INFO kablam!     Checking rustdt_util v0.2.3
Aug 31 15:24:02.298 INFO kablam!     Checking languageserver-types v0.6.1
Aug 31 15:24:03.008 INFO kablam!     Checking rustdt-json_rpc v0.3.0
Aug 31 15:24:08.771 INFO kablam!     Checking rust_lsp v0.6.1 (file:///source)
Aug 31 15:24:10.405 INFO kablam! warning: variable does not need to be mutable
Aug 31 15:24:10.405 INFO kablam!   --> src/lsp.rs:75:9
Aug 31 15:24:10.405 INFO kablam!    |
Aug 31 15:24:10.405 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Aug 31 15:24:10.405 INFO kablam!    |         ----^^^^^^^^^^
Aug 31 15:24:10.405 INFO kablam!    |         |
Aug 31 15:24:10.405 INFO kablam!    |         help: remove this `mut`
Aug 31 15:24:10.406 INFO kablam!    |
Aug 31 15:24:10.406 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 15:24:10.406 INFO kablam! 
Aug 31 15:24:10.415 INFO kablam! warning: variable does not need to be mutable
Aug 31 15:24:10.415 INFO kablam!   --> src/lsp.rs:95:9
Aug 31 15:24:10.415 INFO kablam!    |
Aug 31 15:24:10.415 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Aug 31 15:24:10.415 INFO kablam!    |         ----^^^^^^^^^^
Aug 31 15:24:10.416 INFO kablam!    |         |
Aug 31 15:24:10.416 INFO kablam!    |         help: remove this `mut`
Aug 31 15:24:10.416 INFO kablam! 
Aug 31 15:24:10.566 INFO kablam! warning: variable does not need to be mutable
Aug 31 15:24:10.566 INFO kablam!   --> src/lsp.rs:75:9
Aug 31 15:24:10.566 INFO kablam!    |
Aug 31 15:24:10.566 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Aug 31 15:24:10.566 INFO kablam!    |         ----^^^^^^^^^^
Aug 31 15:24:10.566 INFO kablam!    |         |
Aug 31 15:24:10.567 INFO kablam!    |         help: remove this `mut`
Aug 31 15:24:10.567 INFO kablam!    |
Aug 31 15:24:10.567 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 31 15:24:10.567 INFO kablam! 
Aug 31 15:24:10.576 INFO kablam! warning: variable does not need to be mutable
Aug 31 15:24:10.576 INFO kablam!   --> src/lsp.rs:95:9
Aug 31 15:24:10.576 INFO kablam!    |
Aug 31 15:24:10.576 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Aug 31 15:24:10.576 INFO kablam!    |         ----^^^^^^^^^^
Aug 31 15:24:10.576 INFO kablam!    |         |
Aug 31 15:24:10.576 INFO kablam!    |         help: remove this `mut`
Aug 31 15:24:10.576 INFO kablam! 
Aug 31 15:24:11.288 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.11s
Aug 31 15:24:11.297 INFO kablam! su: No module specific data is present
Aug 31 15:24:11.744 INFO running `"docker" "rm" "-f" "d6102d8865523a6e2e5b2093d2c58db452fc14bba10d5212c75637bbe718f91f"`
Aug 31 15:24:11.860 INFO blam! d6102d8865523a6e2e5b2093d2c58db452fc14bba10d5212c75637bbe718f91f