Sep 10 10:42:27.622 INFO checking rust_lsp-0.6.1 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 10:42:27.622 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 10:42:27.622 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-7/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 10:42:27.840 INFO blam! 92d324b29385c796b06aebbaf60f19b72f5329c00193804c453effae6f50d5d8
Sep 10 10:42:27.842 INFO running `"docker" "start" "-a" "92d324b29385c796b06aebbaf60f19b72f5329c00193804c453effae6f50d5d8"`
Sep 10 10:42:28.520 INFO kablam! usermod: no changes
Sep 10 10:42:28.655 INFO kablam!     Checking rustdt_util v0.2.3
Sep 10 10:42:28.666 INFO kablam!     Checking url v1.7.1
Sep 10 10:42:29.082 INFO kablam!     Checking rustdt-json_rpc v0.3.0
Sep 10 10:42:31.049 INFO kablam!     Checking languageserver-types v0.6.1
Sep 10 10:42:35.735 INFO kablam!     Checking rust_lsp v0.6.1 (file:///source)
Sep 10 10:42:36.806 INFO kablam! warning: variable does not need to be mutable
Sep 10 10:42:36.806 INFO kablam!   --> src/lsp.rs:75:9
Sep 10 10:42:36.806 INFO kablam!    |
Sep 10 10:42:36.806 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Sep 10 10:42:36.806 INFO kablam!    |         ----^^^^^^^^^^
Sep 10 10:42:36.806 INFO kablam!    |         |
Sep 10 10:42:36.806 INFO kablam!    |         help: remove this `mut`
Sep 10 10:42:36.806 INFO kablam!    |
Sep 10 10:42:36.806 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 10:42:36.806 INFO kablam! 
Sep 10 10:42:36.809 INFO kablam! warning: variable does not need to be mutable
Sep 10 10:42:36.809 INFO kablam!   --> src/lsp.rs:95:9
Sep 10 10:42:36.809 INFO kablam!    |
Sep 10 10:42:36.809 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Sep 10 10:42:36.809 INFO kablam!    |         ----^^^^^^^^^^
Sep 10 10:42:36.810 INFO kablam!    |         |
Sep 10 10:42:36.810 INFO kablam!    |         help: remove this `mut`
Sep 10 10:42:36.810 INFO kablam! 
Sep 10 10:42:36.911 INFO kablam! warning: variable does not need to be mutable
Sep 10 10:42:36.912 INFO kablam!   --> src/lsp.rs:75:9
Sep 10 10:42:36.912 INFO kablam!    |
Sep 10 10:42:36.912 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Sep 10 10:42:36.912 INFO kablam!    |         ----^^^^^^^^^^
Sep 10 10:42:36.912 INFO kablam!    |         |
Sep 10 10:42:36.912 INFO kablam!    |         help: remove this `mut`
Sep 10 10:42:36.912 INFO kablam!    |
Sep 10 10:42:36.912 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 10:42:36.912 INFO kablam! 
Sep 10 10:42:36.916 INFO kablam! warning: variable does not need to be mutable
Sep 10 10:42:36.916 INFO kablam!   --> src/lsp.rs:95:9
Sep 10 10:42:36.916 INFO kablam!    |
Sep 10 10:42:36.916 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Sep 10 10:42:36.916 INFO kablam!    |         ----^^^^^^^^^^
Sep 10 10:42:36.916 INFO kablam!    |         |
Sep 10 10:42:36.916 INFO kablam!    |         help: remove this `mut`
Sep 10 10:42:36.916 INFO kablam! 
Sep 10 10:42:37.275 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.72s
Sep 10 10:42:37.283 INFO kablam! su: No module specific data is present
Sep 10 10:42:38.297 INFO running `"docker" "rm" "-f" "92d324b29385c796b06aebbaf60f19b72f5329c00193804c453effae6f50d5d8"`
Sep 10 10:42:38.408 INFO blam! 92d324b29385c796b06aebbaf60f19b72f5329c00193804c453effae6f50d5d8