[INFO] fetching crate maidsafe_utilities 0.18.0...
[INFO] extracting crate maidsafe_utilities 0.18.0 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/maidsafe_utilities/0.18.0
[INFO] extracting crate maidsafe_utilities 0.18.0 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/maidsafe_utilities/0.18.0
[INFO] validating manifest of maidsafe_utilities-0.18.0 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of maidsafe_utilities-0.18.0 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing maidsafe_utilities-0.18.0
[INFO] finished frobbing maidsafe_utilities-0.18.0
[INFO] frobbed toml for maidsafe_utilities-0.18.0 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/maidsafe_utilities/0.18.0/Cargo.toml
[INFO] started frobbing maidsafe_utilities-0.18.0
[INFO] finished frobbing maidsafe_utilities-0.18.0
[INFO] frobbed toml for maidsafe_utilities-0.18.0 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/maidsafe_utilities/0.18.0/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking maidsafe_utilities-0.18.0 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/maidsafe_utilities/0.18.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e857be8e4efba3a5aa3d0d1a946a2733b614e5952089ff2538a0b268db3c0553
[INFO] running `"docker" "start" "-a" "e857be8e4efba3a5aa3d0d1a946a2733b614e5952089ff2538a0b268db3c0553"`
[INFO] [stderr]     Checking config_file_handler v0.11.0
[INFO] [stderr]     Checking ws v0.7.9
[INFO] [stderr]     Checking maidsafe_utilities v0.18.0 (/opt/crater/workdir)
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:51:18
[INFO] [stderr]    |
[INFO] [stderr] 51 |     encoder: Box<Encode>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     warnings
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    = note: #[forbid(bare_trait_objects)] implied by #[forbid(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:55:39
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn encoder(self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]    |                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |     encoder: Box<Encode>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:85:39
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn encoder(self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]    |                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:145:18
[INFO] [stderr]     |
[INFO] [stderr] 145 |     encoder: Box<Encode>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:150:39
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn encoder(self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]     |                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:188:18
[INFO] [stderr]     |
[INFO] [stderr] 188 |     encoder: Box<Encode>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:192:43
[INFO] [stderr]     |
[INFO] [stderr] 192 |     pub fn encoder(mut self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]     |                                           ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:211:18
[INFO] [stderr]     |
[INFO] [stderr] 211 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:218:21
[INFO] [stderr]     |
[INFO] [stderr] 218 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:218:34
[INFO] [stderr]     |
[INFO] [stderr] 218 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:235:18
[INFO] [stderr]     |
[INFO] [stderr] 235 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:242:21
[INFO] [stderr]     |
[INFO] [stderr] 242 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:242:34
[INFO] [stderr]     |
[INFO] [stderr] 242 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:339:18
[INFO] [stderr]     |
[INFO] [stderr] 339 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:346:21
[INFO] [stderr]     |
[INFO] [stderr] 346 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:346:34
[INFO] [stderr]     |
[INFO] [stderr] 346 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:388:18
[INFO] [stderr]     |
[INFO] [stderr] 388 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:395:21
[INFO] [stderr]     |
[INFO] [stderr] 395 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:395:34
[INFO] [stderr]     |
[INFO] [stderr] 395 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:434:17
[INFO] [stderr]     |
[INFO] [stderr] 434 | ) -> Result<Box<Encode>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                 ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:434:30
[INFO] [stderr]     |
[INFO] [stderr] 434 | ) -> Result<Box<Encode>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:472:18
[INFO] [stderr]     |
[INFO] [stderr] 472 |     encoder: Box<Encode>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:478:71
[INFO] [stderr]     |
[INFO] [stderr] 478 |     fn new<W: 'static + SyncWrite + Send>(mut writer: W, encoder: Box<Encode>) -> Self {
[INFO] [stderr]     |                                                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:513:60
[INFO] [stderr]     |
[INFO] [stderr] 513 |     fn append(&self, record: &LogRecord) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:51:18
[INFO] [stderr]    |
[INFO] [stderr] 51 |     encoder: Box<Encode>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     warnings
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    = note: #[forbid(bare_trait_objects)] implied by #[forbid(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:55:39
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn encoder(self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]    |                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:79:18
[INFO] [stderr]    |
[INFO] [stderr] 79 |     encoder: Box<Encode>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:85:39
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn encoder(self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]    |                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:145:18
[INFO] [stderr]     |
[INFO] [stderr] 145 |     encoder: Box<Encode>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:150:39
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn encoder(self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]     |                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:188:18
[INFO] [stderr]     |
[INFO] [stderr] 188 |     encoder: Box<Encode>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:192:43
[INFO] [stderr]     |
[INFO] [stderr] 192 |     pub fn encoder(mut self, encoder: Box<Encode>) -> Self {
[INFO] [stderr]     |                                           ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:211:18
[INFO] [stderr]     |
[INFO] [stderr] 211 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:218:21
[INFO] [stderr]     |
[INFO] [stderr] 218 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:218:34
[INFO] [stderr]     |
[INFO] [stderr] 218 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:235:18
[INFO] [stderr]     |
[INFO] [stderr] 235 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:242:21
[INFO] [stderr]     |
[INFO] [stderr] 242 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:242:34
[INFO] [stderr]     |
[INFO] [stderr] 242 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:339:18
[INFO] [stderr]     |
[INFO] [stderr] 339 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:346:21
[INFO] [stderr]     |
[INFO] [stderr] 346 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:346:34
[INFO] [stderr]     |
[INFO] [stderr] 346 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:388:18
[INFO] [stderr]     |
[INFO] [stderr] 388 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:395:21
[INFO] [stderr]     |
[INFO] [stderr] 395 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:395:34
[INFO] [stderr]     |
[INFO] [stderr] 395 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:434:17
[INFO] [stderr]     |
[INFO] [stderr] 434 | ) -> Result<Box<Encode>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                 ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:434:30
[INFO] [stderr]     |
[INFO] [stderr] 434 | ) -> Result<Box<Encode>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:472:18
[INFO] [stderr]     |
[INFO] [stderr] 472 |     encoder: Box<Encode>,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:478:71
[INFO] [stderr]     |
[INFO] [stderr] 478 |     fn new<W: 'static + SyncWrite + Send>(mut writer: W, encoder: Box<Encode>) -> Self {
[INFO] [stderr]     |                                                                       ^^^^^^ help: use `dyn`: `dyn Encode`
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:513:60
[INFO] [stderr]     |
[INFO] [stderr] 513 |     fn append(&self, record: &LogRecord) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 25 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `maidsafe_utilities`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 25 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `maidsafe_utilities`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e857be8e4efba3a5aa3d0d1a946a2733b614e5952089ff2538a0b268db3c0553"`
[INFO] running `"docker" "rm" "-f" "e857be8e4efba3a5aa3d0d1a946a2733b614e5952089ff2538a0b268db3c0553"`
[INFO] [stdout] e857be8e4efba3a5aa3d0d1a946a2733b614e5952089ff2538a0b268db3c0553