[INFO] crate log4rs-routing-appender 0.4.0 is already in cache
[INFO] extracting crate log4rs-routing-appender 0.4.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/log4rs-routing-appender/0.4.0
[INFO] extracting crate log4rs-routing-appender 0.4.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/log4rs-routing-appender/0.4.0
[INFO] validating manifest of log4rs-routing-appender-0.4.0 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of log4rs-routing-appender-0.4.0 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing log4rs-routing-appender-0.4.0
[INFO] finished frobbing log4rs-routing-appender-0.4.0
[INFO] frobbed toml for log4rs-routing-appender-0.4.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/log4rs-routing-appender/0.4.0/Cargo.toml
[INFO] started frobbing log4rs-routing-appender-0.4.0
[INFO] finished frobbing log4rs-routing-appender-0.4.0
[INFO] frobbed toml for log4rs-routing-appender-0.4.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/log4rs-routing-appender/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking log4rs-routing-appender-0.4.0 against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/log4rs-routing-appender/0.4.0:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 31c3eba46e8463dd48eaaa4554781aecb3be07083936a53705448e78c936334e
[INFO] running `"docker" "start" "-a" "31c3eba46e8463dd48eaaa4554781aecb3be07083936a53705448e78c936334e"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking log4rs-routing-appender v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/pattern/template.rs:17:57
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(pattern: &Value) -> Result<Template, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[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/route/pattern/template.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn expand(&self) -> Result<Value, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/template.rs:143:56
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn new(value: &Value) -> Result<ValueTemplate, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/template.rs:262:43
[INFO] [stderr]     |
[INFO] [stderr] 262 |     fn expand(&self) -> Result<Value, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/pattern/mod.rs:72:76
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn route(&self, _: &Record, cache: &mut Cache) -> Result<Appender, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                                                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/pattern/mod.rs:99:18
[INFO] [stderr]    |
[INFO] [stderr] 99 |     type Trait = Route;
[INFO] [stderr]    |                  ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/mod.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |     ) -> Result<Box<Route>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/mod.rs:106:33
[INFO] [stderr]     |
[INFO] [stderr] 106 |     ) -> Result<Box<Route>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/mod.rs:92:28
[INFO] [stderr]    |
[INFO] [stderr] 92 |         F: FnOnce() -> Box<Append>,
[INFO] [stderr]    |                            ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:120:36
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn insert(self, value: Box<Append>) -> Appender {
[INFO] [stderr]     |                                    ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:132:29
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub struct Appender(Arc<Box<Append>>);
[INFO] [stderr]     |                             ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:135:28
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn appender(&self) -> &Append {
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:147:31
[INFO] [stderr]     |
[INFO] [stderr] 147 |     ) -> Result<Appender, Box<Error + Sync + Send>>;
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:151:25
[INFO] [stderr]     |
[INFO] [stderr] 151 | impl Deserializable for Route {
[INFO] [stderr]     |                         ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |     router: Box<Route>,
[INFO] [stderr]     |                 ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:126:57
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:159:36
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn build(self, router: Box<Route>) -> RoutingAppender {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:194:18
[INFO] [stderr]     |
[INFO] [stderr] 194 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:201:21
[INFO] [stderr]     |
[INFO] [stderr] 201 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:201:34
[INFO] [stderr]     |
[INFO] [stderr] 201 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:281:28
[INFO] [stderr]     |
[INFO] [stderr] 281 |     fn appender(&self) -> &Append;
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/pattern/template.rs:17:57
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(pattern: &Value) -> Result<Template, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[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/route/pattern/template.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn expand(&self) -> Result<Value, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/template.rs:143:56
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn new(value: &Value) -> Result<ValueTemplate, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/template.rs:262:43
[INFO] [stderr]     |
[INFO] [stderr] 262 |     fn expand(&self) -> Result<Value, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/pattern/mod.rs:72:76
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn route(&self, _: &Record, cache: &mut Cache) -> Result<Appender, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                                                            ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/pattern/mod.rs:99:18
[INFO] [stderr]    |
[INFO] [stderr] 99 |     type Trait = Route;
[INFO] [stderr]    |                  ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/mod.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |     ) -> Result<Box<Route>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/pattern/mod.rs:106:33
[INFO] [stderr]     |
[INFO] [stderr] 106 |     ) -> Result<Box<Route>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/route/mod.rs:92:28
[INFO] [stderr]    |
[INFO] [stderr] 92 |         F: FnOnce() -> Box<Append>,
[INFO] [stderr]    |                            ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:120:36
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn insert(self, value: Box<Append>) -> Appender {
[INFO] [stderr]     |                                    ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:132:29
[INFO] [stderr]     |
[INFO] [stderr] 132 | pub struct Appender(Arc<Box<Append>>);
[INFO] [stderr]     |                             ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:135:28
[INFO] [stderr]     |
[INFO] [stderr] 135 |     fn appender(&self) -> &Append {
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:147:31
[INFO] [stderr]     |
[INFO] [stderr] 147 |     ) -> Result<Appender, Box<Error + Sync + Send>>;
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/route/mod.rs:151:25
[INFO] [stderr]     |
[INFO] [stderr] 151 | impl Deserializable for Route {
[INFO] [stderr]     |                         ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |     router: Box<Route>,
[INFO] [stderr]     |                 ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:126:57
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:159:36
[INFO] [stderr]     |
[INFO] [stderr] 159 |     pub fn build(self, router: Box<Route>) -> RoutingAppender {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Route`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:194:18
[INFO] [stderr]     |
[INFO] [stderr] 194 |     type Trait = Append;
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:201:21
[INFO] [stderr]     |
[INFO] [stderr] 201 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:201:34
[INFO] [stderr]     |
[INFO] [stderr] 201 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:281:28
[INFO] [stderr]     |
[INFO] [stderr] 281 |     fn appender(&self) -> &Append;
[INFO] [stderr]     |                            ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/pattern.rs:29:52
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn append(&self, _: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[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]   --> tests/pattern.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 |     type Trait = Append;
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/pattern.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                     ^^^^^^ help: use `dyn`: `dyn Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/pattern.rs:47:34
[INFO] [stderr]    |
[INFO] [stderr] 47 |     ) -> Result<Box<Append>, Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `"docker" "inspect" "31c3eba46e8463dd48eaaa4554781aecb3be07083936a53705448e78c936334e"`
[INFO] running `"docker" "rm" "-f" "31c3eba46e8463dd48eaaa4554781aecb3be07083936a53705448e78c936334e"`
[INFO] [stdout] 31c3eba46e8463dd48eaaa4554781aecb3be07083936a53705448e78c936334e