[INFO] crate erased_serde_json 0.1.1 is already in cache
[INFO] extracting crate erased_serde_json 0.1.1 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/erased_serde_json/0.1.1
[INFO] extracting crate erased_serde_json 0.1.1 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/erased_serde_json/0.1.1
[INFO] validating manifest of erased_serde_json-0.1.1 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 erased_serde_json-0.1.1 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 erased_serde_json-0.1.1
[INFO] finished frobbing erased_serde_json-0.1.1
[INFO] frobbed toml for erased_serde_json-0.1.1 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/erased_serde_json/0.1.1/Cargo.toml
[INFO] started frobbing erased_serde_json-0.1.1
[INFO] finished frobbing erased_serde_json-0.1.1
[INFO] frobbed toml for erased_serde_json-0.1.1 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/erased_serde_json/0.1.1/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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking erased_serde_json-0.1.1 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-7/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/erased_serde_json/0.1.1:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef4d43c4ddb2f1f01942720e9509aeedadd00d9e0a652d9a2c8df271c1c34166
[INFO] running `"docker" "start" "-a" "ef4d43c4ddb2f1f01942720e9509aeedadd00d9e0a652d9a2c8df271c1c34166"`
[INFO] [stderr]     Checking erased_serde_json v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ser.rs:7:50
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn erased_write_null(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]   |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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/ser.rs:8:50
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn erased_write_bool(&mut self, writer: &mut io::Write, value: bool) -> Result<(), io::Error>;
[INFO] [stderr]   |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ser.rs:9:48
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn erased_write_i8(&mut self, writer: &mut io::Write, value: i8) -> Result<(), io::Error>;
[INFO] [stderr]   |                                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:10:49
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn erased_write_i16(&mut self, writer: &mut io::Write, value: i16) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:11:49
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn erased_write_i32(&mut self, writer: &mut io::Write, value: i32) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:12:49
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn erased_write_i64(&mut self, writer: &mut io::Write, value: i64) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:13:48
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn erased_write_u8(&mut self, writer: &mut io::Write, value: u8) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:14:49
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn erased_write_u16(&mut self, writer: &mut io::Write, value: u16) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:15:49
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn erased_write_u32(&mut self, writer: &mut io::Write, value: u32) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:16:49
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn erased_write_u64(&mut self, writer: &mut io::Write, value: u64) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:17:49
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn erased_write_f32(&mut self, writer: &mut io::Write, value: f32) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:18:49
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn erased_write_f64(&mut self, writer: &mut io::Write, value: f64) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:19:52
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn erased_begin_string(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:20:50
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn erased_end_string(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:23:22
[INFO] [stderr]    |
[INFO] [stderr] 23 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:28:22
[INFO] [stderr]    |
[INFO] [stderr] 28 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:31:51
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn erased_begin_array(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:32:49
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn erased_end_array(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:35:22
[INFO] [stderr]    |
[INFO] [stderr] 35 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:38:55
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn erased_end_array_value(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:39:52
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn erased_begin_object(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:40:50
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn erased_end_object(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:46:54
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn erased_end_object_key(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:47:58
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn erased_begin_object_value(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:48:56
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn erased_end_object_value(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:55:45
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn erased_write_null(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:58:45
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn erased_write_bool(&mut self, w: &mut io::Write, v: bool) -> Result<(), io::Error> {
[INFO] [stderr]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:61:43
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn erased_write_i8(&mut self, w: &mut io::Write, v: i8) -> Result<(), io::Error> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:64:44
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn erased_write_i16(&mut self, w: &mut io::Write, v: i16) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:67:44
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn erased_write_i32(&mut self, w: &mut io::Write, v: i32) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:70:44
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn erased_write_i64(&mut self, w: &mut io::Write, v: i64) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:73:43
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn erased_write_u8(&mut self, w: &mut io::Write, v: u8) -> Result<(), io::Error> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn erased_write_u16(&mut self, w: &mut io::Write, v: u16) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:79:44
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn erased_write_u32(&mut self, w: &mut io::Write, v: u32) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:82:44
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn erased_write_u64(&mut self, w: &mut io::Write, v: u64) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:85:44
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn erased_write_f32(&mut self, w: &mut io::Write, v: f32) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:88:44
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn erased_write_f64(&mut self, w: &mut io::Write, v: f64) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:91:47
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn erased_begin_string(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]    |                                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:94:45
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn erased_end_string(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         w: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |         w: &mut io::Write,
[INFO] [stderr]     |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:111:46
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn erased_begin_array(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:114:44
[INFO] [stderr]     |
[INFO] [stderr] 114 |     fn erased_end_array(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:119:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |         w: &mut io::Write,
[INFO] [stderr]     |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:124:50
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn erased_end_array_value(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:127:47
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn erased_begin_object(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:130:45
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn erased_end_object(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:133:51
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn erased_begin_object_key(&mut self, w: &mut io::Write, first: bool) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:136:49
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn erased_end_object_key(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:139:53
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn erased_begin_object_value(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:142:51
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn erased_end_object_value(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:322:34
[INFO] [stderr]     |
[INFO] [stderr] 322 | impl_formatter_for_trait_object!(Formatter);
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:323:42
[INFO] [stderr]     |
[INFO] [stderr] 323 | impl_formatter_for_trait_object!(&'a mut Formatter);
[INFO] [stderr]     |                                          ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:324:43
[INFO] [stderr]     |
[INFO] [stderr] 324 | impl_formatter_for_trait_object!(&'a mut (Formatter + Send));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Formatter + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:325:43
[INFO] [stderr]     |
[INFO] [stderr] 325 | impl_formatter_for_trait_object!(&'a mut (Formatter + Sync));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Formatter + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:326:43
[INFO] [stderr]     |
[INFO] [stderr] 326 | impl_formatter_for_trait_object!(&'a mut (Formatter + Send + Sync));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Formatter + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ser.rs:7:50
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn erased_write_null(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]   |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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/ser.rs:8:50
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn erased_write_bool(&mut self, writer: &mut io::Write, value: bool) -> Result<(), io::Error>;
[INFO] [stderr]   |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/ser.rs:9:48
[INFO] [stderr]   |
[INFO] [stderr] 9 |     fn erased_write_i8(&mut self, writer: &mut io::Write, value: i8) -> Result<(), io::Error>;
[INFO] [stderr]   |                                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:10:49
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn erased_write_i16(&mut self, writer: &mut io::Write, value: i16) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:11:49
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn erased_write_i32(&mut self, writer: &mut io::Write, value: i32) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:12:49
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn erased_write_i64(&mut self, writer: &mut io::Write, value: i64) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:13:48
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn erased_write_u8(&mut self, writer: &mut io::Write, value: u8) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:14:49
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn erased_write_u16(&mut self, writer: &mut io::Write, value: u16) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:15:49
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn erased_write_u32(&mut self, writer: &mut io::Write, value: u32) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:16:49
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn erased_write_u64(&mut self, writer: &mut io::Write, value: u64) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:17:49
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn erased_write_f32(&mut self, writer: &mut io::Write, value: f32) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:18:49
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn erased_write_f64(&mut self, writer: &mut io::Write, value: f64) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:19:52
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn erased_begin_string(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:20:50
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn erased_end_string(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:23:22
[INFO] [stderr]    |
[INFO] [stderr] 23 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:28:22
[INFO] [stderr]    |
[INFO] [stderr] 28 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:31:51
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn erased_begin_array(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:32:49
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn erased_end_array(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:35:22
[INFO] [stderr]    |
[INFO] [stderr] 35 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:38:55
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn erased_end_array_value(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:39:52
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn erased_begin_object(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:40:50
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn erased_end_object(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 |         writer: &mut io::Write,
[INFO] [stderr]    |                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:46:54
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn erased_end_object_key(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                      ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:47:58
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn erased_begin_object_value(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:48:56
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn erased_end_object_value(&mut self, writer: &mut io::Write) -> Result<(), io::Error>;
[INFO] [stderr]    |                                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:55:45
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn erased_write_null(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:58:45
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn erased_write_bool(&mut self, w: &mut io::Write, v: bool) -> Result<(), io::Error> {
[INFO] [stderr]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:61:43
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn erased_write_i8(&mut self, w: &mut io::Write, v: i8) -> Result<(), io::Error> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:64:44
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn erased_write_i16(&mut self, w: &mut io::Write, v: i16) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:67:44
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn erased_write_i32(&mut self, w: &mut io::Write, v: i32) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:70:44
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn erased_write_i64(&mut self, w: &mut io::Write, v: i64) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:73:43
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn erased_write_u8(&mut self, w: &mut io::Write, v: u8) -> Result<(), io::Error> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:76:44
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn erased_write_u16(&mut self, w: &mut io::Write, v: u16) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:79:44
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn erased_write_u32(&mut self, w: &mut io::Write, v: u32) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:82:44
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn erased_write_u64(&mut self, w: &mut io::Write, v: u64) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:85:44
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn erased_write_f32(&mut self, w: &mut io::Write, v: f32) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:88:44
[INFO] [stderr]    |
[INFO] [stderr] 88 |     fn erased_write_f64(&mut self, w: &mut io::Write, v: f64) -> Result<(), io::Error> {
[INFO] [stderr]    |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:91:47
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn erased_begin_string(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]    |                                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:94:45
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn erased_end_string(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ser.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         w: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |         w: &mut io::Write,
[INFO] [stderr]     |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:111:46
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn erased_begin_array(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:114:44
[INFO] [stderr]     |
[INFO] [stderr] 114 |     fn erased_end_array(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:119:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |         w: &mut io::Write,
[INFO] [stderr]     |                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:124:50
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn erased_end_array_value(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:127:47
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn erased_begin_object(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:130:45
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn erased_end_object(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:133:51
[INFO] [stderr]     |
[INFO] [stderr] 133 |     fn erased_begin_object_key(&mut self, w: &mut io::Write, first: bool) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:136:49
[INFO] [stderr]     |
[INFO] [stderr] 136 |     fn erased_end_object_key(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:139:53
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn erased_begin_object_value(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:142:51
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn erased_end_object_value(&mut self, w: &mut io::Write) -> Result<(), io::Error> {
[INFO] [stderr]     |                                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:322:34
[INFO] [stderr]     |
[INFO] [stderr] 322 | impl_formatter_for_trait_object!(Formatter);
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:323:42
[INFO] [stderr]     |
[INFO] [stderr] 323 | impl_formatter_for_trait_object!(&'a mut Formatter);
[INFO] [stderr]     |                                          ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:324:43
[INFO] [stderr]     |
[INFO] [stderr] 324 | impl_formatter_for_trait_object!(&'a mut (Formatter + Send));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Formatter + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:325:43
[INFO] [stderr]     |
[INFO] [stderr] 325 | impl_formatter_for_trait_object!(&'a mut (Formatter + Sync));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Formatter + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:326:43
[INFO] [stderr]     |
[INFO] [stderr] 326 | impl_formatter_for_trait_object!(&'a mut (Formatter + Send + Sync));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Formatter + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "ef4d43c4ddb2f1f01942720e9509aeedadd00d9e0a652d9a2c8df271c1c34166"`
[INFO] running `"docker" "rm" "-f" "ef4d43c4ddb2f1f01942720e9509aeedadd00d9e0a652d9a2c8df271c1c34166"`
[INFO] [stdout] ef4d43c4ddb2f1f01942720e9509aeedadd00d9e0a652d9a2c8df271c1c34166