[INFO] crate gnuplot 0.0.31 is already in cache
[INFO] extracting crate gnuplot 0.0.31 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/gnuplot/0.0.31
[INFO] extracting crate gnuplot 0.0.31 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/gnuplot/0.0.31
[INFO] validating manifest of gnuplot-0.0.31 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gnuplot-0.0.31 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gnuplot-0.0.31
[INFO] removed 0 missing examples
[INFO] finished frobbing gnuplot-0.0.31
[INFO] frobbed toml for gnuplot-0.0.31 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/gnuplot/0.0.31/Cargo.toml
[INFO] started frobbing gnuplot-0.0.31
[INFO] removed 0 missing examples
[INFO] finished frobbing gnuplot-0.0.31
[INFO] frobbed toml for gnuplot-0.0.31 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/gnuplot/0.0.31/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking gnuplot-0.0.31 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-6/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/gnuplot/0.0.31:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e6e458489d53de7cab745124062c13b3bd54b28ff7df8b27d66c2aa7f0f2c7d0
[INFO] running `"docker" "start" "-a" "e6e458489d53de7cab745124062c13b3bd54b28ff7df8b27d66c2aa7f0f2c7d0"`
[INFO] [stderr]     Checking gnuplot v0.0.31 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/axes2d.rs:30:35
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[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/axes2d.rs:124:46
[INFO] [stderr]     |
[INFO] [stderr] 124 |             let c = &mut self.common.commands as &mut Writer;
[INFO] [stderr]     |                                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes2d.rs:177:46
[INFO] [stderr]     |
[INFO] [stderr] 177 |             let c = &mut self.common.commands as &mut Writer;
[INFO] [stderr]     |                                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes2d.rs:689:35
[INFO] [stderr]     |
[INFO] [stderr] 689 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion);
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes2d.rs:694:35
[INFO] [stderr]     |
[INFO] [stderr] 694 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:349:35
[INFO] [stderr]     |
[INFO] [stderr] 349 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion);
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:354:30
[INFO] [stderr]     |
[INFO] [stderr] 354 |     fn write_out(&self, w: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:406:36
[INFO] [stderr]     |
[INFO] [stderr] 406 |             fn set_cntrparam<F: FnOnce(&mut Writer)>(w: &mut Writer, wr: F)
[INFO] [stderr]     |                                             ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:406:53
[INFO] [stderr]     |
[INFO] [stderr] 406 |             fn set_cntrparam<F: FnOnce(&mut Writer)>(w: &mut Writer, wr: F)
[INFO] [stderr]     |                                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:220:36
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn write_args(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:398:36
[INFO] [stderr]     |
[INFO] [stderr] 398 |     fn write_data(&self, writer: &mut Writer)
[INFO] [stderr]     |                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:431:101
[INFO] [stderr]     |
[INFO] [stderr] 431 | pub fn write_out_label_options(label_type: LabelType, options: &[LabelOption<String>], writer: &mut Writer)
[INFO] [stderr]     |                                                                                                     ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:660:43
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn write_out_commands(&self, w: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1024:43
[INFO] [stderr]      |
[INFO] [stderr] 1024 |     pub fn write_grid_options(&self, c: &mut Writer, axes: &[TickAxis], version: GnuplotVersion)
[INFO] [stderr]      |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1058:36
[INFO] [stderr]      |
[INFO] [stderr] 1058 |     pub fn write_line_options(c: &mut Writer, options: &[PlotOption<String>], version: GnuplotVersion)
[INFO] [stderr]      |                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1094:37
[INFO] [stderr]      |
[INFO] [stderr] 1094 |     pub fn write_color_options(c: &mut Writer, options: &[PlotOption<String>], default: Option<&str>)
[INFO] [stderr]      |                                        ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1113:48
[INFO] [stderr]      |
[INFO] [stderr] 1113 |     pub fn write_out_commands(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]      |                                                   ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1121:59
[INFO] [stderr]      |
[INFO] [stderr] 1121 |     pub fn write_out_elements(&self, cmd: &str, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]      |                                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1229:61
[INFO] [stderr]      |
[INFO] [stderr] 1229 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1612:61
[INFO] [stderr]      |
[INFO] [stderr] 1612 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1634:61
[INFO] [stderr]      |
[INFO] [stderr] 1634 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1675:61
[INFO] [stderr]      |
[INFO] [stderr] 1675 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/figure.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/figure.rs:265:26
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let w = writer as &mut Writer;
[INFO] [stderr]     |                                ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/axes2d.rs:30:35
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[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/axes2d.rs:124:46
[INFO] [stderr]     |
[INFO] [stderr] 124 |             let c = &mut self.common.commands as &mut Writer;
[INFO] [stderr]     |                                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes2d.rs:177:46
[INFO] [stderr]     |
[INFO] [stderr] 177 |             let c = &mut self.common.commands as &mut Writer;
[INFO] [stderr]     |                                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes2d.rs:689:35
[INFO] [stderr]     |
[INFO] [stderr] 689 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion);
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes2d.rs:694:35
[INFO] [stderr]     |
[INFO] [stderr] 694 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:349:35
[INFO] [stderr]     |
[INFO] [stderr] 349 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion);
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:354:30
[INFO] [stderr]     |
[INFO] [stderr] 354 |     fn write_out(&self, w: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:406:36
[INFO] [stderr]     |
[INFO] [stderr] 406 |             fn set_cntrparam<F: FnOnce(&mut Writer)>(w: &mut Writer, wr: F)
[INFO] [stderr]     |                                             ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes3d.rs:406:53
[INFO] [stderr]     |
[INFO] [stderr] 406 |             fn set_cntrparam<F: FnOnce(&mut Writer)>(w: &mut Writer, wr: F)
[INFO] [stderr]     |                                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:220:36
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn write_args(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:398:36
[INFO] [stderr]     |
[INFO] [stderr] 398 |     fn write_data(&self, writer: &mut Writer)
[INFO] [stderr]     |                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:431:101
[INFO] [stderr]     |
[INFO] [stderr] 431 | pub fn write_out_label_options(label_type: LabelType, options: &[LabelOption<String>], writer: &mut Writer)
[INFO] [stderr]     |                                                                                                     ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/axes_common.rs:660:43
[INFO] [stderr]     |
[INFO] [stderr] 660 |     pub fn write_out_commands(&self, w: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]     |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1024:43
[INFO] [stderr]      |
[INFO] [stderr] 1024 |     pub fn write_grid_options(&self, c: &mut Writer, axes: &[TickAxis], version: GnuplotVersion)
[INFO] [stderr]      |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1058:36
[INFO] [stderr]      |
[INFO] [stderr] 1058 |     pub fn write_line_options(c: &mut Writer, options: &[PlotOption<String>], version: GnuplotVersion)
[INFO] [stderr]      |                                       ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1094:37
[INFO] [stderr]      |
[INFO] [stderr] 1094 |     pub fn write_color_options(c: &mut Writer, options: &[PlotOption<String>], default: Option<&str>)
[INFO] [stderr]      |                                        ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1113:48
[INFO] [stderr]      |
[INFO] [stderr] 1113 |     pub fn write_out_commands(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]      |                                                   ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1121:59
[INFO] [stderr]      |
[INFO] [stderr] 1121 |     pub fn write_out_elements(&self, cmd: &str, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]      |                                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1229:61
[INFO] [stderr]      |
[INFO] [stderr] 1229 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1612:61
[INFO] [stderr]      |
[INFO] [stderr] 1612 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1634:61
[INFO] [stderr]      |
[INFO] [stderr] 1634 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/axes_common.rs:1675:61
[INFO] [stderr]      |
[INFO] [stderr] 1675 |             let c = &mut self.get_common_data_mut().commands as &mut Writer;
[INFO] [stderr]      |                                                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/figure.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn write_out(&self, writer: &mut Writer, version: GnuplotVersion)
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/figure.rs:265:26
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let w = writer as &mut Writer;
[INFO] [stderr]     |                                ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `"docker" "inspect" "e6e458489d53de7cab745124062c13b3bd54b28ff7df8b27d66c2aa7f0f2c7d0"`
[INFO] running `"docker" "rm" "-f" "e6e458489d53de7cab745124062c13b3bd54b28ff7df8b27d66c2aa7f0f2c7d0"`
[INFO] [stdout] e6e458489d53de7cab745124062c13b3bd54b28ff7df8b27d66c2aa7f0f2c7d0