Sep 06 00:49:15.641 INFO checking rust_lsp-0.6.1 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 00:49:15.641 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 00:49:15.641 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 00:49:15.936 INFO blam! d552d710128c7eb3159ed0a29437e7f8f03d1ceb6402ff8e2db6177fcbdb5968
Sep 06 00:49:15.940 INFO running `"docker" "start" "-a" "d552d710128c7eb3159ed0a29437e7f8f03d1ceb6402ff8e2db6177fcbdb5968"`
Sep 06 00:49:16.538 INFO kablam! usermod: no changes
Sep 06 00:49:16.613 INFO kablam!     Checking rustdt_util v0.2.3
Sep 06 00:49:16.613 INFO kablam!    Compiling syn v0.10.8
Sep 06 00:49:16.622 INFO kablam!     Checking url v1.7.1
Sep 06 00:49:16.943 INFO kablam!     Checking rustdt-json_rpc v0.3.0
Sep 06 00:49:20.135 INFO kablam!    Compiling serde_codegen_internals v0.11.3
Sep 06 00:49:21.114 INFO kablam!    Compiling serde_codegen v0.8.23
Sep 06 00:49:23.969 INFO kablam!    Compiling serde_derive v0.8.23
Sep 06 00:49:25.071 INFO kablam!     Checking languageserver-types v0.6.1
Sep 06 00:49:27.037 INFO kablam!     Checking rust_lsp v0.6.1 (file:///source)
Sep 06 00:49:27.528 INFO kablam! warning: variable does not need to be mutable
Sep 06 00:49:27.528 INFO kablam!   --> src/lsp.rs:75:9
Sep 06 00:49:27.528 INFO kablam!    |
Sep 06 00:49:27.528 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Sep 06 00:49:27.528 INFO kablam!    |         ----^^^^^^^^^^
Sep 06 00:49:27.528 INFO kablam!    |         |
Sep 06 00:49:27.528 INFO kablam!    |         help: remove this `mut`
Sep 06 00:49:27.528 INFO kablam!    |
Sep 06 00:49:27.528 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 06 00:49:27.528 INFO kablam! 
Sep 06 00:49:27.531 INFO kablam! warning: variable does not need to be mutable
Sep 06 00:49:27.531 INFO kablam!   --> src/lsp.rs:95:9
Sep 06 00:49:27.531 INFO kablam!    |
Sep 06 00:49:27.531 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Sep 06 00:49:27.531 INFO kablam!    |         ----^^^^^^^^^^
Sep 06 00:49:27.531 INFO kablam!    |         |
Sep 06 00:49:27.531 INFO kablam!    |         help: remove this `mut`
Sep 06 00:49:27.531 INFO kablam! 
Sep 06 00:49:27.662 INFO kablam! warning: variable does not need to be mutable
Sep 06 00:49:27.662 INFO kablam!   --> src/lsp.rs:75:9
Sep 06 00:49:27.662 INFO kablam!    |
Sep 06 00:49:27.662 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Sep 06 00:49:27.662 INFO kablam!    |         ----^^^^^^^^^^
Sep 06 00:49:27.662 INFO kablam!    |         |
Sep 06 00:49:27.662 INFO kablam!    |         help: remove this `mut`
Sep 06 00:49:27.662 INFO kablam!    |
Sep 06 00:49:27.662 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 06 00:49:27.662 INFO kablam! 
Sep 06 00:49:27.666 INFO kablam! warning: variable does not need to be mutable
Sep 06 00:49:27.666 INFO kablam!   --> src/lsp.rs:95:9
Sep 06 00:49:27.666 INFO kablam!    |
Sep 06 00:49:27.666 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Sep 06 00:49:27.666 INFO kablam!    |         ----^^^^^^^^^^
Sep 06 00:49:27.666 INFO kablam!    |         |
Sep 06 00:49:27.666 INFO kablam!    |         help: remove this `mut`
Sep 06 00:49:27.666 INFO kablam! 
Sep 06 00:49:27.787 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.23s
Sep 06 00:49:27.793 INFO kablam! su: No module specific data is present
Sep 06 00:49:29.901 INFO running `"docker" "rm" "-f" "d552d710128c7eb3159ed0a29437e7f8f03d1ceb6402ff8e2db6177fcbdb5968"`
Sep 06 00:49:29.996 INFO blam! d552d710128c7eb3159ed0a29437e7f8f03d1ceb6402ff8e2db6177fcbdb5968