[INFO] crate wamp 0.1.0 is already in cache
[INFO] extracting crate wamp 0.1.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/wamp/0.1.0
[INFO] extracting crate wamp 0.1.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/wamp/0.1.0
[INFO] validating manifest of wamp-0.1.0 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wamp-0.1.0 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wamp-0.1.0
[INFO] removed path dependency rmp from wamp-0.1.0
[INFO] removed path dependency rmp-serde from wamp-0.1.0
[INFO] finished frobbing wamp-0.1.0
[INFO] frobbed toml for wamp-0.1.0 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/wamp/0.1.0/Cargo.toml
[INFO] started frobbing wamp-0.1.0
[INFO] removed path dependency rmp from wamp-0.1.0
[INFO] removed path dependency rmp-serde from wamp-0.1.0
[INFO] finished frobbing wamp-0.1.0
[INFO] frobbed toml for wamp-0.1.0 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/wamp/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking wamp-0.1.0 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-6/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/wamp/0.1.0:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2219bda3f9975eee21df2be47050c94db761042e82986bcd71dfea74ad7ab252
[INFO] running `"docker" "start" "-a" "2219bda3f9975eee21df2be47050c94db761042e82986bcd71dfea74ad7ab252"`
[INFO] [stderr]     Checking rmp v0.7.5
[INFO] [stderr]     Checking ws v0.5.3
[INFO] [stderr]    Compiling wamp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking rmp-serde v0.9.6
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/client.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | / macro_rules! try_websocket {
[INFO] [stderr] 34 | |     ($e: expr) => (
[INFO] [stderr] 35 | |         match $e {
[INFO] [stderr] 36 | |             Ok(result) => result,
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |     );
[INFO] [stderr] 40 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client.rs:62:19
[INFO] [stderr]    |
[INFO] [stderr] 62 |     callback: Box<FnMut(List, Dict)>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client.rs:66:19
[INFO] [stderr]    |
[INFO] [stderr] 66 |     callback: Box<FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:651:80
[INFO] [stderr]     |
[INFO] [stderr] 651 |     pub fn subscribe_with_pattern(&mut self, topic_pattern: URI, callback: Box<FnMut(List, Dict)>, policy: MatchingPolicy) -> WampResult<Future<Subscription, CallError>> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:666:59
[INFO] [stderr]     |
[INFO] [stderr] 666 |     pub fn subscribe(&mut self, topic: URI, callback: Box<FnMut(List, Dict)>) -> WampResult<Future<Subscription, CallError>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:670:83
[INFO] [stderr]     |
[INFO] [stderr] 670 |     pub fn register_with_pattern(&mut self, procedure_pattern: URI, callback: Box<FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)> >, policy: MatchingPolicy) -> WampResult<Future<Registration, CallError>> {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:687:62
[INFO] [stderr]     |
[INFO] [stderr] 687 |     pub fn register(&mut self, procedure: URI, callback: Box<FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)> >) -> WampResult<Future<Registration, CallError>> {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/pubsub/patterns.rs:203:24
[INFO] [stderr]     |
[INFO] [stderr] 203 |                     Ok((self.prefix_id))
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/pubsub/patterns.rs:206:24
[INFO] [stderr]     |
[INFO] [stderr] 206 |                     Ok((self.id))
[INFO] [stderr]     |                        ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/rpc/patterns.rs:224:24
[INFO] [stderr]     |
[INFO] [stderr] 224 |                     Ok((self.prefix_id))
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/rpc/patterns.rs:227:24
[INFO] [stderr]     |
[INFO] [stderr] 227 |                     Ok((self.id))
[INFO] [stderr]     |                        ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/client.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | / macro_rules! try_websocket {
[INFO] [stderr] 34 | |     ($e: expr) => (
[INFO] [stderr] 35 | |         match $e {
[INFO] [stderr] 36 | |             Ok(result) => result,
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |     );
[INFO] [stderr] 40 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client.rs:62:19
[INFO] [stderr]    |
[INFO] [stderr] 62 |     callback: Box<FnMut(List, Dict)>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client.rs:66:19
[INFO] [stderr]    |
[INFO] [stderr] 66 |     callback: Box<FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:651:80
[INFO] [stderr]     |
[INFO] [stderr] 651 |     pub fn subscribe_with_pattern(&mut self, topic_pattern: URI, callback: Box<FnMut(List, Dict)>, policy: MatchingPolicy) -> WampResult<Future<Subscription, CallError>> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:666:59
[INFO] [stderr]     |
[INFO] [stderr] 666 |     pub fn subscribe(&mut self, topic: URI, callback: Box<FnMut(List, Dict)>) -> WampResult<Future<Subscription, CallError>> {
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:670:83
[INFO] [stderr]     |
[INFO] [stderr] 670 |     pub fn register_with_pattern(&mut self, procedure_pattern: URI, callback: Box<FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)> >, policy: MatchingPolicy) -> WampResult<Future<Registration, CallError>> {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client.rs:687:62
[INFO] [stderr]     |
[INFO] [stderr] 687 |     pub fn register(&mut self, procedure: URI, callback: Box<FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)> >) -> WampResult<Future<Registration, CallError>> {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(List, Dict) -> CallResult<(Option<List>, Option<Dict>)>`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/pubsub/patterns.rs:203:24
[INFO] [stderr]     |
[INFO] [stderr] 203 |                     Ok((self.prefix_id))
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/pubsub/patterns.rs:206:24
[INFO] [stderr]     |
[INFO] [stderr] 206 |                     Ok((self.id))
[INFO] [stderr]     |                        ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/rpc/patterns.rs:224:24
[INFO] [stderr]     |
[INFO] [stderr] 224 |                     Ok((self.prefix_id))
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/router/rpc/patterns.rs:227:24
[INFO] [stderr]     |
[INFO] [stderr] 227 |                     Ok((self.id))
[INFO] [stderr]     |                        ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/mod.rs:165:25
[INFO] [stderr]     |
[INFO] [stderr] 165 |                     let mut manager = &mut realm.subscription_manager;
[INFO] [stderr]     |                         ----^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/mod.rs:179:25
[INFO] [stderr]     |
[INFO] [stderr] 179 |                     let mut manager = &mut realm.registration_manager;
[INFO] [stderr]     |                         ----^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/messaging.rs:93:25
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                         ----^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/pubsub/mod.rs:15:21
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 let mut manager = &mut realm.subscription_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/pubsub/mod.rs:37:21
[INFO] [stderr]    |
[INFO] [stderr] 37 |                 let mut manager = &mut realm.subscription_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/pubsub/patterns.rs:194:29
[INFO] [stderr]     |
[INFO] [stderr] 194 |                 if let Some(mut edge) = self.edges.get_mut(uri_bit) {
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 |                 let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:65:22
[INFO] [stderr]    |
[INFO] [stderr] 65 |                  let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                      ----^^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:96:21
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/rpc/patterns.rs:215:29
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 if let Some(mut edge) = self.edges.get_mut(uri_bit) {
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/mod.rs:165:25
[INFO] [stderr]     |
[INFO] [stderr] 165 |                     let mut manager = &mut realm.subscription_manager;
[INFO] [stderr]     |                         ----^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/mod.rs:179:25
[INFO] [stderr]     |
[INFO] [stderr] 179 |                     let mut manager = &mut realm.registration_manager;
[INFO] [stderr]     |                         ----^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/messaging.rs:93:25
[INFO] [stderr]    |
[INFO] [stderr] 93 |                     let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                         ----^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/pubsub/mod.rs:15:21
[INFO] [stderr]    |
[INFO] [stderr] 15 |                 let mut manager = &mut realm.subscription_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/pubsub/mod.rs:37:21
[INFO] [stderr]    |
[INFO] [stderr] 37 |                 let mut manager = &mut realm.subscription_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/pubsub/patterns.rs:194:29
[INFO] [stderr]     |
[INFO] [stderr] 194 |                 if let Some(mut edge) = self.edges.get_mut(uri_bit) {
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:16:21
[INFO] [stderr]    |
[INFO] [stderr] 16 |                 let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:65:22
[INFO] [stderr]    |
[INFO] [stderr] 65 |                  let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                      ----^^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/router/rpc/mod.rs:96:21
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 let mut manager = &mut realm.registration_manager;
[INFO] [stderr]    |                     ----^^^^^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/router/rpc/patterns.rs:215:29
[INFO] [stderr]     |
[INFO] [stderr] 215 |                 if let Some(mut edge) = self.edges.get_mut(uri_bit) {
[INFO] [stderr]     |                             ----^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.60s
[INFO] running `"docker" "inspect" "2219bda3f9975eee21df2be47050c94db761042e82986bcd71dfea74ad7ab252"`
[INFO] running `"docker" "rm" "-f" "2219bda3f9975eee21df2be47050c94db761042e82986bcd71dfea74ad7ab252"`
[INFO] [stdout] 2219bda3f9975eee21df2be47050c94db761042e82986bcd71dfea74ad7ab252