Nov 28 18:49:04.816 INFO checking rust_lsp-0.6.1 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 18:49:04.817 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 28 18:49:05.048 INFO [stdout] dc3feeb2d67813b8a7904cec570d0d99c4efb0e509c7068e6c566579184f2c92
Nov 28 18:49:05.050 INFO running `"docker" "start" "-a" "dc3feeb2d67813b8a7904cec570d0d99c4efb0e509c7068e6c566579184f2c92"`
Nov 28 18:49:05.519 INFO [stderr] usermod: no changes
Nov 28 18:49:05.608 INFO [stderr]     Checking url v1.7.2
Nov 28 18:49:05.608 INFO [stderr]     Checking rustdt-json_rpc v0.3.0
Nov 28 18:49:07.890 INFO [stderr]     Checking languageserver-types v0.6.1
Nov 28 18:49:11.806 INFO [stderr]     Checking rust_lsp v0.6.1 (/source)
Nov 28 18:49:15.761 INFO [stderr] warning: variable does not need to be mutable
Nov 28 18:49:15.761 INFO [stderr]   --> src/lsp.rs:75:9
Nov 28 18:49:15.761 INFO [stderr]    |
Nov 28 18:49:15.761 INFO [stderr] 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Nov 28 18:49:15.761 INFO [stderr]    |         ----^^^^^^^^^^
Nov 28 18:49:15.761 INFO [stderr]    |         |
Nov 28 18:49:15.761 INFO [stderr]    |         help: remove this `mut`
Nov 28 18:49:15.761 INFO [stderr]    |
Nov 28 18:49:15.761 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 18:49:15.761 INFO [stderr] 
Nov 28 18:49:15.764 INFO [stderr] warning: variable does not need to be mutable
Nov 28 18:49:15.764 INFO [stderr]   --> src/lsp.rs:95:9
Nov 28 18:49:15.764 INFO [stderr]    |
Nov 28 18:49:15.764 INFO [stderr] 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Nov 28 18:49:15.764 INFO [stderr]    |         ----^^^^^^^^^^
Nov 28 18:49:15.764 INFO [stderr]    |         |
Nov 28 18:49:15.764 INFO [stderr]    |         help: remove this `mut`
Nov 28 18:49:15.764 INFO [stderr] 
Nov 28 18:49:16.005 INFO [stderr] warning: variable does not need to be mutable
Nov 28 18:49:16.005 INFO [stderr]   --> src/lsp.rs:75:9
Nov 28 18:49:16.005 INFO [stderr]    |
Nov 28 18:49:16.005 INFO [stderr] 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Nov 28 18:49:16.006 INFO [stderr]    |         ----^^^^^^^^^^
Nov 28 18:49:16.006 INFO [stderr]    |         |
Nov 28 18:49:16.006 INFO [stderr]    |         help: remove this `mut`
Nov 28 18:49:16.006 INFO [stderr]    |
Nov 28 18:49:16.006 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 18:49:16.007 INFO [stderr] 
Nov 28 18:49:16.010 INFO [stderr] warning: variable does not need to be mutable
Nov 28 18:49:16.010 INFO [stderr]   --> src/lsp.rs:95:9
Nov 28 18:49:16.010 INFO [stderr]    |
Nov 28 18:49:16.011 INFO [stderr] 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Nov 28 18:49:16.011 INFO [stderr]    |         ----^^^^^^^^^^
Nov 28 18:49:16.011 INFO [stderr]    |         |
Nov 28 18:49:16.011 INFO [stderr]    |         help: remove this `mut`
Nov 28 18:49:16.012 INFO [stderr] 
Nov 28 18:49:16.369 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.82s
Nov 28 18:49:16.377 INFO [stderr] su: No module specific data is present
Nov 28 18:49:16.691 INFO running `"docker" "inspect" "dc3feeb2d67813b8a7904cec570d0d99c4efb0e509c7068e6c566579184f2c92"`
Nov 28 18:49:16.809 INFO running `"docker" "rm" "-f" "dc3feeb2d67813b8a7904cec570d0d99c4efb0e509c7068e6c566579184f2c92"`
Nov 28 18:49:16.952 INFO [stdout] dc3feeb2d67813b8a7904cec570d0d99c4efb0e509c7068e6c566579184f2c92