Update RLS

This bumps racer to 2.1.48, which bumps rustc-ap-* crates to v722 in
order to unbreak the toolstate.

Author: Xanewok

Cargo.lock

@@ -2862,9 +2862,9 @@ dependencies = [
 
 [[package]]
 name = "racer"
-version = "2.1.47"
+version = "2.1.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "513c70e67444a0d62fdc581dffa521c6820942a5f08300d0864863f8d0e750e3"
+checksum = "7fec2e85e7a30f8fd31b7cf288ad363b5e51fd2cb6f53b416b0cfaabd84e1ccb"
 dependencies = [
  "bitflags",
  "clap",
@@ -3088,7 +3088,7 @@ dependencies = [
  "anyhow",
  "cargo",
  "cargo-util",
- "cargo_metadata 0.8.2",
+ "cargo_metadata 0.12.0",
  "clippy_lints",
  "crossbeam-channel",
  "difference",
@@ -3221,19 +3221,19 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_arena"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "526610f47139efa440178239553b59ea805ff57a532b4e295c71d2a9b18fd676"
+checksum = "550ca1a0925d31a0af089b18c89f5adf3b286e319e3e1f1a5204c21bd2f17371"
 dependencies = [
  "rustc-ap-rustc_data_structures",
  "smallvec",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_ast"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf6a9dda0804a7243b0282e3b75a8cf4654c7a61f033e587751941e1fe39391b"
+checksum = "4aa53b68080df17994a54747f7c37b0686288a670efb9ba3b382ce62e744aed2"
 dependencies = [
  "bitflags",
  "rustc-ap-rustc_data_structures",
@@ -3248,9 +3248,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_ast_pretty"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82f5019be8b41a58664169fd2f4b1a37fe82705681db394b76419e4e87d40ab1"
+checksum = "0ae71e68fada466a4b2c39c79ca6aee3226587abe6787170d2f6c92237569565"
 dependencies = [
  "rustc-ap-rustc_ast",
  "rustc-ap-rustc_span",
@@ -3259,9 +3259,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_data_structures"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a701717fb14549331085756b9741ae3b4bf35808489f1887d72c1d0e0fe52b77"
+checksum = "faa484d6e0ca32d1d82303647275c696f745599b3d97e686f396ceef5b99d7ae"
 dependencies = [
  "arrayvec",
  "bitflags",
@@ -3291,9 +3291,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_errors"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3182ce85e8bfc96443475547f2f5aa2b5e67655d9b88721795f36f0ba9e265a"
+checksum = "5f85ba19cca320ad797e3a29c35cab9bddfff0e7adbde336a436249e54cee7b1"
 dependencies = [
  "annotate-snippets",
  "atty",
@@ -3311,31 +3311,31 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_feature"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eed033b93270126ef60963c3ebbd0e026bf53b985172b6366c7b0e7881c9d507"
+checksum = "97d538adab96b8b2b1ca9fcd4c8c47d4e23e862a23d1a38b6c15cd8fd52b34b1"
 dependencies = [
  "rustc-ap-rustc_data_structures",
  "rustc-ap-rustc_span",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_fs_util"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28ee6531986a205101e09fd143d7bf31897388f33b1814d4bcc45fd62211dca6"
+checksum = "8ad6f13d240944fa8f360d2f3b849a7cadaec75e477829e7dde61e838deda83d"
 
 [[package]]
 name = "rustc-ap-rustc_graphviz"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3398fddc0e23d2db89c036f8952ddf78cadc597f7059752116e69483e164a5b6"
+checksum = "08b3451153cc5828c02cc4f1a0df146d25ac4b3382a112e25fd9d3f5bff15cdc"
 
 [[package]]
 name = "rustc-ap-rustc_index"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dca4e27eb5b701f6bbd47d8fc9d242378fca3e4107a519a28415c2989c4a3bd3"
+checksum = "cd39a9f01b442c629bdff5778cb3dd29b7c2ea4afe62d5ab61d216bd1b556692"
 dependencies = [
  "arrayvec",
  "rustc-ap-rustc_macros",
@@ -3344,18 +3344,18 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_lexer"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "786bbfe9d4d5264294c1819dbf1497a2480b583d5eda1ca9ae22e12d6661f5df"
+checksum = "a5de290c44a90e671d2cd730062b9ef73d11155da7e44e7741d633e1e51e616e"
 dependencies = [
  "unicode-xid",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_lint_defs"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be2f045e2b999c154ec505d5fea69c994b742f3ebd2f552d11a6c81723921e47"
+checksum = "69570b4beb61088926b131579865bbe70d124d30778c46307a62ec8b310ae462"
 dependencies = [
  "rustc-ap-rustc_ast",
  "rustc-ap-rustc_data_structures",
@@ -3368,9 +3368,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_macros"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27789cd26d6b9e2fdfa68a262a20664d79ca67d31a3886d40fb88ebf6935869c"
+checksum = "86bd877df37f15c5a44d9679d1b5207ebc95f3943fbc336eeac670195ac58610"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3380,9 +3380,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_parse"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1dc331f4958350679679e619d63a891e8d5d34ef99087068c89aa9e657d52caa"
+checksum = "02502d8522ba31d0bcad28a78822b68c1b6ba947a2b4aa6a2341b30594379b80"
 dependencies = [
  "bitflags",
  "rustc-ap-rustc_ast",
@@ -3400,19 +3400,19 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_serialize"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9a6824a462c4c1a379e911b0faf86d303a54bcf8673d4cc445195085966a4a4"
+checksum = "5f741f8e9aee6323fbe127329490608a5a250cc0072ac91e684ef62518cdb1ff"
 dependencies = [
  "indexmap",
  "smallvec",
 ]
 
 [[package]]
 name = "rustc-ap-rustc_session"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a782a5f6ada0dbe089c6416ad0104f0b8a8bdb4bd26ea95e5fefaec67aed5e8a"
+checksum = "dba61eca749f4fced4427ad1cc7f23342cfc6527c3bcc624e3aa56abc1f81298"
 dependencies = [
  "bitflags",
  "getopts",
@@ -3432,9 +3432,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_span"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a257546cb264b250c7abdb81239bb02f18a274a966211755a3ea89411b122214"
+checksum = "a642e8d6fc883f34e0778e079f8242ac40c6614a6b7a0ef61681333e847f5e62"
 dependencies = [
  "cfg-if 0.1.10",
  "md-5",
@@ -3452,9 +3452,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-ap-rustc_target"
-version = "718.0.0"
+version = "722.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5a72dd689421bcb5750f3ed0dedf367076e714ef0ba56c02ed391b9a8582862"
+checksum = "80feebd8c323b80dd73a395fa7fabba9e2098b6277670ff89c473f618ffa07de"
 dependencies = [
  "bitflags",
  "rustc-ap-rustc_data_structures",