Dec 18 11:45:56.594 INFO checking rust_lsp-0.6.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 11:45:56.595 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/rust_lsp/0.6.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 11:45:56.799 INFO [stdout] a4db194ad0f254e30202be0a5081932f0cf8a472a1145f8b4fa1898279908010
Dec 18 11:45:56.801 INFO running `"docker" "start" "-a" "a4db194ad0f254e30202be0a5081932f0cf8a472a1145f8b4fa1898279908010"`
Dec 18 11:45:57.630 INFO [stderr]     Checking rustdt_util v0.2.3
Dec 18 11:45:57.630 INFO [stderr]     Checking url v1.7.2
Dec 18 11:45:57.943 INFO [stderr]     Checking rustdt-json_rpc v0.3.0
Dec 18 11:45:58.977 INFO [stderr]     Checking languageserver-types v0.6.1
Dec 18 11:46:02.069 INFO [stderr]     Checking rust_lsp v0.6.1 (/opt/crater/workdir)
Dec 18 11:46:03.096 INFO [stderr] warning: variable does not need to be mutable
Dec 18 11:46:03.096 INFO [stderr]   --> src/lsp.rs:75:9
Dec 18 11:46:03.096 INFO [stderr]    |
Dec 18 11:46:03.096 INFO [stderr] 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Dec 18 11:46:03.096 INFO [stderr]    |         ----^^^^^^^^^^
Dec 18 11:46:03.096 INFO [stderr]    |         |
Dec 18 11:46:03.096 INFO [stderr]    |         help: remove this `mut`
Dec 18 11:46:03.096 INFO [stderr]    |
Dec 18 11:46:03.096 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 11:46:03.096 INFO [stderr] 
Dec 18 11:46:03.101 INFO [stderr] warning: variable does not need to be mutable
Dec 18 11:46:03.101 INFO [stderr]   --> src/lsp.rs:95:9
Dec 18 11:46:03.101 INFO [stderr]    |
Dec 18 11:46:03.101 INFO [stderr] 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Dec 18 11:46:03.101 INFO [stderr]    |         ----^^^^^^^^^^
Dec 18 11:46:03.101 INFO [stderr]    |         |
Dec 18 11:46:03.101 INFO [stderr]    |         help: remove this `mut`
Dec 18 11:46:03.101 INFO [stderr] 
Dec 18 11:46:03.336 INFO [stderr] warning: variable does not need to be mutable
Dec 18 11:46:03.336 INFO [stderr]   --> src/lsp.rs:75:9
Dec 18 11:46:03.336 INFO [stderr]    |
Dec 18 11:46:03.336 INFO [stderr] 75 |         mut msg_reader: &mut MR, endpoint: Endpoint, lsp_server_handler: SERVER
Dec 18 11:46:03.336 INFO [stderr]    |         ----^^^^^^^^^^
Dec 18 11:46:03.336 INFO [stderr]    |         |
Dec 18 11:46:03.336 INFO [stderr]    |         help: remove this `mut`
Dec 18 11:46:03.336 INFO [stderr]    |
Dec 18 11:46:03.336 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 11:46:03.336 INFO [stderr] 
Dec 18 11:46:03.349 INFO [stderr] warning: variable does not need to be mutable
Dec 18 11:46:03.349 INFO [stderr]   --> src/lsp.rs:95:9
Dec 18 11:46:03.349 INFO [stderr]    |
Dec 18 11:46:03.349 INFO [stderr] 95 |         mut msg_reader: &mut MR, endpoint: Endpoint, request_handler: Box<RequestHandler>
Dec 18 11:46:03.349 INFO [stderr]    |         ----^^^^^^^^^^
Dec 18 11:46:03.349 INFO [stderr]    |         |
Dec 18 11:46:03.349 INFO [stderr]    |         help: remove this `mut`
Dec 18 11:46:03.349 INFO [stderr] 
Dec 18 11:46:03.749 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
Dec 18 11:46:04.302 INFO running `"docker" "inspect" "a4db194ad0f254e30202be0a5081932f0cf8a472a1145f8b4fa1898279908010"`
Dec 18 11:46:04.422 INFO running `"docker" "rm" "-f" "a4db194ad0f254e30202be0a5081932f0cf8a472a1145f8b4fa1898279908010"`
Dec 18 11:46:04.731 INFO [stdout] a4db194ad0f254e30202be0a5081932f0cf8a472a1145f8b4fa1898279908010