[INFO] crate nakadion 0.11.3 is already in cache
[INFO] extracting crate nakadion 0.11.3 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/nakadion/0.11.3
[INFO] extracting crate nakadion 0.11.3 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/nakadion/0.11.3
[INFO] validating manifest of nakadion-0.11.3 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nakadion-0.11.3 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nakadion-0.11.3
[INFO] finished frobbing nakadion-0.11.3
[INFO] frobbed toml for nakadion-0.11.3 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/nakadion/0.11.3/Cargo.toml
[INFO] started frobbing nakadion-0.11.3
[INFO] finished frobbing nakadion-0.11.3
[INFO] frobbed toml for nakadion-0.11.3 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/nakadion/0.11.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nakadion-0.11.3 against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-4/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/nakadion/0.11.3:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f11eb1896f84a949dfbfff85c32c540209dd2cfbe64f06770991a9348fe2d15b
[INFO] running `"docker" "start" "-a" "f11eb1896f84a949dfbfff85c32c540209dd2cfbe64f06770991a9348fe2d15b"`
[INFO] [stderr]     Checking backoff v0.1.5
[INFO] [stderr]     Checking nakadion v0.11.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:243:29
[INFO] [stderr]     |
[INFO] [stderr] 243 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[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/nakadi/api.rs:259:25
[INFO] [stderr]     |
[INFO] [stderr] 259 |     token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:282:29
[INFO] [stderr]     |
[INFO] [stderr] 282 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:632:22
[INFO] [stderr]     |
[INFO] [stderr] 632 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:674:22
[INFO] [stderr]     |
[INFO] [stderr] 674 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:707:22
[INFO] [stderr]     |
[INFO] [stderr] 707 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:752:22
[INFO] [stderr]     |
[INFO] [stderr] 752 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/committer.rs:34:28
[INFO] [stderr]    |
[INFO] [stderr] 34 |     metrics_collector: Arc<MetricsCollector + Send + Sync + 'static>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/dispatcher.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 |     metrics_collector: Box<MetricsCollector>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/dispatcher.rs:269:25
[INFO] [stderr]     |
[INFO] [stderr] 269 |     metrics_collector: &MetricsCollector,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/publisher.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |     token_provider: Arc<ProvidesAccessToken + Sync + Send + 'static>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/publisher.rs:45:29
[INFO] [stderr]    |
[INFO] [stderr] 45 |         token_provider: Arc<ProvidesAccessToken + Sync + Send + 'static>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/publisher.rs:130:22
[INFO] [stderr]     |
[INFO] [stderr] 130 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/streaming_client.rs:387:29
[INFO] [stderr]     |
[INFO] [stderr] 387 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/streaming_client.rs:408:25
[INFO] [stderr]     |
[INFO] [stderr] 408 |     token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/streaming_client.rs:446:29
[INFO] [stderr]     |
[INFO] [stderr] 446 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/worker.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 |     metrics_collector: Box<MetricsCollector>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/cancellation_token.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 |     metrics_collector: Arc<MetricsCollector + Sync + Send + 'static>,
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cancellation_token.rs:73:28
[INFO] [stderr]    |
[INFO] [stderr] 73 |     metrics_collector: Arc<MetricsCollector + Send + Sync + 'static>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:243:29
[INFO] [stderr]     |
[INFO] [stderr] 243 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[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/nakadi/api.rs:259:25
[INFO] [stderr]     |
[INFO] [stderr] 259 |     token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:282:29
[INFO] [stderr]     |
[INFO] [stderr] 282 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:632:22
[INFO] [stderr]     |
[INFO] [stderr] 632 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:674:22
[INFO] [stderr]     |
[INFO] [stderr] 674 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:707:22
[INFO] [stderr]     |
[INFO] [stderr] 707 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/api.rs:752:22
[INFO] [stderr]     |
[INFO] [stderr] 752 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/committer.rs:34:28
[INFO] [stderr]    |
[INFO] [stderr] 34 |     metrics_collector: Arc<MetricsCollector + Send + Sync + 'static>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/dispatcher.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 |     metrics_collector: Box<MetricsCollector>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/dispatcher.rs:269:25
[INFO] [stderr]     |
[INFO] [stderr] 269 |     metrics_collector: &MetricsCollector,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/publisher.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |     token_provider: Arc<ProvidesAccessToken + Sync + Send + 'static>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/publisher.rs:45:29
[INFO] [stderr]    |
[INFO] [stderr] 45 |         token_provider: Arc<ProvidesAccessToken + Sync + Send + 'static>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/publisher.rs:130:22
[INFO] [stderr]     |
[INFO] [stderr] 130 |     token_provider: &ProvidesAccessToken,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/streaming_client.rs:387:29
[INFO] [stderr]     |
[INFO] [stderr] 387 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/streaming_client.rs:408:25
[INFO] [stderr]     |
[INFO] [stderr] 408 |     token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nakadi/streaming_client.rs:446:29
[INFO] [stderr]     |
[INFO] [stderr] 446 |         token_provider: Arc<ProvidesAccessToken + Send + Sync + 'static>,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ProvidesAccessToken + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nakadi/worker.rs:25:28
[INFO] [stderr]    |
[INFO] [stderr] 25 |     metrics_collector: Box<MetricsCollector>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/cancellation_token.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 |     metrics_collector: Arc<MetricsCollector + Sync + Send + 'static>,
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector + Sync + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cancellation_token.rs:73:28
[INFO] [stderr]    |
[INFO] [stderr] 73 |     metrics_collector: Arc<MetricsCollector + Send + Sync + 'static>,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MetricsCollector + Send + Sync + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/nakadi/committer.rs:245:21
[INFO] [stderr]     |
[INFO] [stderr] 245 |                 let mut key = (
[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/nakadi/committer.rs:251:35
[INFO] [stderr]     |
[INFO] [stderr] 251 |                     Entry::Vacant(mut entry) => {
[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/nakadi/committer.rs:245:21
[INFO] [stderr]     |
[INFO] [stderr] 245 |                 let mut key = (
[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/nakadi/committer.rs:251:35
[INFO] [stderr]     |
[INFO] [stderr] 251 |                     Entry::Vacant(mut entry) => {
[INFO] [stderr]     |                                   ----^^^^^
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.27s
[INFO] running `"docker" "inspect" "f11eb1896f84a949dfbfff85c32c540209dd2cfbe64f06770991a9348fe2d15b"`
[INFO] running `"docker" "rm" "-f" "f11eb1896f84a949dfbfff85c32c540209dd2cfbe64f06770991a9348fe2d15b"`
[INFO] [stdout] f11eb1896f84a949dfbfff85c32c540209dd2cfbe64f06770991a9348fe2d15b