Oct 22 00:02:38.863 INFO checking rust_lsp-0.6.1 against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 22 00:02:38.865 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-7/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +155510e377ae2a8d8ee0dad1a5f809c9062a5526-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 22 00:02:39.280 INFO blam! 30c50f58d14ebf34c82e5b22ce51b450d609a6795c906ae091623829f8ba076e
Oct 22 00:02:39.285 INFO running `"docker" "start" "-a" "30c50f58d14ebf34c82e5b22ce51b450d609a6795c906ae091623829f8ba076e"`
Oct 22 00:02:40.694 INFO kablam! usermod: no changes
Oct 22 00:02:40.828 INFO kablam!     Checking rustdt_util v0.2.3
Oct 22 00:02:40.836 INFO kablam!     Checking url v1.7.1
Oct 22 00:02:41.936 INFO kablam!     Checking rustdt-json_rpc v0.3.0
Oct 22 00:02:43.692 INFO kablam!     Checking languageserver-types v0.6.1
Oct 22 00:02:48.166 INFO kablam!     Checking rust_lsp v0.6.1 (/source)
Oct 22 00:02:51.060 INFO kablam! warning: variable does not need to be mutable
Oct 22 00:02:51.060 INFO kablam!   --> src/lsp.rs:75:9
Oct 22 00:02:51.060 INFO kablam!    |
Oct 22 00:02:51.060 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Oct 22 00:02:51.060 INFO kablam!    |         ----^^^^^^^^^^
Oct 22 00:02:51.060 INFO kablam!    |         |
Oct 22 00:02:51.060 INFO kablam!    |         help: remove this `mut`
Oct 22 00:02:51.060 INFO kablam!    |
Oct 22 00:02:51.060 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 22 00:02:51.060 INFO kablam! 
Oct 22 00:02:51.060 INFO kablam! warning: variable does not need to be mutable
Oct 22 00:02:51.060 INFO kablam!   --> src/lsp.rs:95:9
Oct 22 00:02:51.060 INFO kablam!    |
Oct 22 00:02:51.060 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Oct 22 00:02:51.060 INFO kablam!    |         ----^^^^^^^^^^
Oct 22 00:02:51.061 INFO kablam!    |         |
Oct 22 00:02:51.061 INFO kablam!    |         help: remove this `mut`
Oct 22 00:02:51.061 INFO kablam! 
Oct 22 00:02:51.347 INFO kablam! warning: variable does not need to be mutable
Oct 22 00:02:51.347 INFO kablam!   --> src/lsp.rs:75:9
Oct 22 00:02:51.348 INFO kablam!    |
Oct 22 00:02:51.348 INFO kablam! 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Oct 22 00:02:51.348 INFO kablam!    |         ----^^^^^^^^^^
Oct 22 00:02:51.348 INFO kablam!    |         |
Oct 22 00:02:51.349 INFO kablam!    |         help: remove this `mut`
Oct 22 00:02:51.349 INFO kablam!    |
Oct 22 00:02:51.349 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 22 00:02:51.349 INFO kablam! 
Oct 22 00:02:51.350 INFO kablam! warning: variable does not need to be mutable
Oct 22 00:02:51.350 INFO kablam!   --> src/lsp.rs:95:9
Oct 22 00:02:51.350 INFO kablam!    |
Oct 22 00:02:51.350 INFO kablam! 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Oct 22 00:02:51.351 INFO kablam!    |         ----^^^^^^^^^^
Oct 22 00:02:51.351 INFO kablam!    |         |
Oct 22 00:02:51.351 INFO kablam!    |         help: remove this `mut`
Oct 22 00:02:51.351 INFO kablam! 
Oct 22 00:02:52.016 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 11.30s
Oct 22 00:02:52.032 INFO kablam! su: No module specific data is present
Oct 22 00:02:52.748 INFO running `"docker" "rm" "-f" "30c50f58d14ebf34c82e5b22ce51b450d609a6795c906ae091623829f8ba076e"`
Oct 22 00:02:53.012 INFO blam! 30c50f58d14ebf34c82e5b22ce51b450d609a6795c906ae091623829f8ba076e