[INFO] crate maidsafe_utilities 0.17.0 is already in cache
[INFO] extracting crate maidsafe_utilities 0.17.0 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/maidsafe_utilities/0.17.0
[INFO] extracting crate maidsafe_utilities 0.17.0 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/maidsafe_utilities/0.17.0
[INFO] validating manifest of maidsafe_utilities-0.17.0 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 maidsafe_utilities-0.17.0 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 maidsafe_utilities-0.17.0
[INFO] finished frobbing maidsafe_utilities-0.17.0
[INFO] frobbed toml for maidsafe_utilities-0.17.0 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/maidsafe_utilities/0.17.0/Cargo.toml
[INFO] started frobbing maidsafe_utilities-0.17.0
[INFO] finished frobbing maidsafe_utilities-0.17.0
[INFO] frobbed toml for maidsafe_utilities-0.17.0 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/maidsafe_utilities/0.17.0/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-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" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking maidsafe_utilities-0.17.0 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/maidsafe_utilities/0.17.0:/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] 0f6b2584eaaa4188194fc73a14ed788f2fcc7d3597f3d4d224406dfd0cefea82
[INFO] running `"docker" "start" "-a" "0f6b2584eaaa4188194fc73a14ed788f2fcc7d3597f3d4d224406dfd0cefea82"`
[INFO] [stderr]     Checking url v1.5.1
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking config_file_handler v0.11.0
[INFO] [stderr]     Checking bincode v0.8.0
[INFO] [stderr]     Checking log4rs v0.7.0
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.5.1/src/form_urlencoded.rs:251:40
[INFO] [stderr]     |
[INFO] [stderr] 249 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 250 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 251 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking ws v0.7.3
[INFO] [stderr]     Checking maidsafe_utilities v0.17.0 (/opt/crater/workdir)
[INFO] [stderr] error: lint `private_no_mangle_fns` has been removed: `no longer a warning, #[no_mangle] functions always exported`
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     private_no_mangle_fns,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[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(renamed_and_removed_lints)] implied by #[forbid(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: lint `private_no_mangle_statics` has been removed: `no longer a warning, #[no_mangle] statics always exported`
[INFO] [stderr]   --> src/lib.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     private_no_mangle_statics,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: lint `private_no_mangle_fns` has been removed: `no longer a warning, #[no_mangle] functions always exported`
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     private_no_mangle_fns,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[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(renamed_and_removed_lints)] implied by #[forbid(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: lint `private_no_mangle_statics` has been removed: `no longer a warning, #[no_mangle] statics always exported`
[INFO] [stderr]   --> src/lib.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     private_no_mangle_statics,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 |     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:54:39
[INFO] [stderr]    |
[INFO] [stderr] 54 |     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:78:18
[INFO] [stderr]    |
[INFO] [stderr] 78 |     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:84:39
[INFO] [stderr]    |
[INFO] [stderr] 84 |     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:144:18
[INFO] [stderr]     |
[INFO] [stderr] 144 |     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:149:39
[INFO] [stderr]     |
[INFO] [stderr] 149 |     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:187:18
[INFO] [stderr]     |
[INFO] [stderr] 187 |     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:191:43
[INFO] [stderr]     |
[INFO] [stderr] 191 |     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:210:18
[INFO] [stderr]     |
[INFO] [stderr] 210 |     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:217:21
[INFO] [stderr]     |
[INFO] [stderr] 217 |     ) -> 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:217:34
[INFO] [stderr]     |
[INFO] [stderr] 217 |     ) -> 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:236:18
[INFO] [stderr]     |
[INFO] [stderr] 236 |     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:243:21
[INFO] [stderr]     |
[INFO] [stderr] 243 |     ) -> 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:243:34
[INFO] [stderr]     |
[INFO] [stderr] 243 |     ) -> 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:338:18
[INFO] [stderr]     |
[INFO] [stderr] 338 |     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:345:21
[INFO] [stderr]     |
[INFO] [stderr] 345 |     ) -> 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:345:34
[INFO] [stderr]     |
[INFO] [stderr] 345 |     ) -> 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:387:18
[INFO] [stderr]     |
[INFO] [stderr] 387 |     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:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |     ) -> 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:394:34
[INFO] [stderr]     |
[INFO] [stderr] 394 |     ) -> 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:433:33
[INFO] [stderr]     |
[INFO] [stderr] 433 | ) -> Result<PatternEncoder, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: the item `rand` is imported redundantly
[INFO] [stderr]    --> src/log/async_log.rs:434:9
[INFO] [stderr]     |
[INFO] [stderr] 434 |     use rand;
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:74:1
[INFO] [stderr]     |
[INFO] [stderr] 74  | extern crate rand;
[INFO] [stderr]     | ------------------ the item `rand` is already imported here
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:42:5
[INFO] [stderr]     |
[INFO] [stderr] 42  |     unused,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     = note: #[deny(unused_imports)] implied by #[deny(unused)]
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:484:18
[INFO] [stderr]     |
[INFO] [stderr] 484 |     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:490:71
[INFO] [stderr]     |
[INFO] [stderr] 490 |     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:525:60
[INFO] [stderr]     |
[INFO] [stderr] 525 |     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 27 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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/log/async_log.rs:50:18
[INFO] [stderr]    |
[INFO] [stderr] 50 |     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:54:39
[INFO] [stderr]    |
[INFO] [stderr] 54 |     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:78:18
[INFO] [stderr]    |
[INFO] [stderr] 78 |     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:84:39
[INFO] [stderr]    |
[INFO] [stderr] 84 |     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:144:18
[INFO] [stderr]     |
[INFO] [stderr] 144 |     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:149:39
[INFO] [stderr]     |
[INFO] [stderr] 149 |     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:187:18
[INFO] [stderr]     |
[INFO] [stderr] 187 |     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:191:43
[INFO] [stderr]     |
[INFO] [stderr] 191 |     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:210:18
[INFO] [stderr]     |
[INFO] [stderr] 210 |     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:217:21
[INFO] [stderr]     |
[INFO] [stderr] 217 |     ) -> 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:217:34
[INFO] [stderr]     |
[INFO] [stderr] 217 |     ) -> 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:236:18
[INFO] [stderr]     |
[INFO] [stderr] 236 |     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:243:21
[INFO] [stderr]     |
[INFO] [stderr] 243 |     ) -> 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:243:34
[INFO] [stderr]     |
[INFO] [stderr] 243 |     ) -> 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:338:18
[INFO] [stderr]     |
[INFO] [stderr] 338 |     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:345:21
[INFO] [stderr]     |
[INFO] [stderr] 345 |     ) -> 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:345:34
[INFO] [stderr]     |
[INFO] [stderr] 345 |     ) -> 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:387:18
[INFO] [stderr]     |
[INFO] [stderr] 387 |     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:394:21
[INFO] [stderr]     |
[INFO] [stderr] 394 |     ) -> 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:394:34
[INFO] [stderr]     |
[INFO] [stderr] 394 |     ) -> 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:433:33
[INFO] [stderr]     |
[INFO] [stderr] 433 | ) -> Result<PatternEncoder, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] error: the item `rand` is imported redundantly
[INFO] [stderr]    --> src/log/async_log.rs:434:9
[INFO] [stderr]     |
[INFO] [stderr] 434 |     use rand;
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:74:1
[INFO] [stderr]     |
[INFO] [stderr] 74  | extern crate rand;
[INFO] [stderr]     | ------------------ the item `rand` is already imported here
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:42:5
[INFO] [stderr]     |
[INFO] [stderr] 42  |     unused,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     = note: #[deny(unused_imports)] implied by #[deny(unused)]
[INFO] [stderr] 
[INFO] [stderr] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/log/async_log.rs:484:18
[INFO] [stderr]     |
[INFO] [stderr] 484 |     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:490:71
[INFO] [stderr]     |
[INFO] [stderr] 490 |     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:525:60
[INFO] [stderr]     |
[INFO] [stderr] 525 |     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 27 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" "0f6b2584eaaa4188194fc73a14ed788f2fcc7d3597f3d4d224406dfd0cefea82"`
[INFO] running `"docker" "rm" "-f" "0f6b2584eaaa4188194fc73a14ed788f2fcc7d3597f3d4d224406dfd0cefea82"`
[INFO] [stdout] 0f6b2584eaaa4188194fc73a14ed788f2fcc7d3597f3d4d224406dfd0cefea82