[INFO] fetching crate bincode 1.1.4...
[INFO] checking bincode-1.1.4 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate bincode 1.1.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate bincode 1.1.4 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bincode 1.1.4
[INFO] finished tweaking crates.io crate bincode 1.1.4
[INFO] tweaked toml for crates.io crate bincode 1.1.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] db112e88983f276ef0e2138fba0d2b34c2516b1235ffcfeab72a8a01a54f090f
[INFO] running `"docker" "start" "-a" "db112e88983f276ef0e2138fba0d2b34c2516b1235ffcfeab72a8a01a54f090f"`
[INFO] [stderr]    Compiling bincode v1.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_bytes v0.11.2
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/de/mod.rs:51:26
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/de/mod.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let value: u8 = try!(serde::Deserialize::deserialize(self));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(self.read_type::<u8>());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:143:26
[INFO] [stderr]     |
[INFO] [stderr] 143 |         visitor.visit_u8(try!(self.reader.read_u8()))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         try!(self.read_type::<i8>());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:152:26
[INFO] [stderr]     |
[INFO] [stderr] 152 |         visitor.visit_i8(try!(self.reader.read_i8()))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let _ = try!(self.reader.read_exact(&mut buf[..1]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:186:19
[INFO] [stderr]     |
[INFO] [stderr] 186 |         let res = try!(
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:199:26
[INFO] [stderr]     |
[INFO] [stderr] 199 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         try!(self.read_bytes(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:208:30
[INFO] [stderr]     |
[INFO] [stderr] 208 |         visitor.visit_string(try!(self.read_string()))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:215:26
[INFO] [stderr]     |
[INFO] [stderr] 215 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         try!(self.read_bytes(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:224:32
[INFO] [stderr]     |
[INFO] [stderr] 224 |         visitor.visit_byte_buf(try!(self.read_vec()))
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:248:32
[INFO] [stderr]     |
[INFO] [stderr] 248 |                 let idx: u32 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:250:21
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 Ok((try!(val), self))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:277:33
[INFO] [stderr]     |
[INFO] [stderr] 277 |                     let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:302:25
[INFO] [stderr]     |
[INFO] [stderr] 302 |         let value: u8 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:314:19
[INFO] [stderr]     |
[INFO] [stderr] 314 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:339:31
[INFO] [stderr]     |
[INFO] [stderr] 339 |                     let key = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:353:29
[INFO] [stderr]     |
[INFO] [stderr] 353 |                 let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:365:19
[INFO] [stderr]     |
[INFO] [stderr] 365 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         try!(self.writer.write_u8(1));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:156:19
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |         try!(self.serialize_u32(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:185:19
[INFO] [stderr]     |
[INFO] [stderr] 185 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:186:9
[INFO] [stderr]     |
[INFO] [stderr] 186 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         try!(self.serialize_u32(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:222:9
[INFO] [stderr]     |
[INFO] [stderr] 222 |         try!(self.serialize_u32(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:333:9
[INFO] [stderr]     |
[INFO] [stderr] 333 |         try!(self.add_value(0 as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:342:9
[INFO] [stderr]     |
[INFO] [stderr] 342 |         try!(self.add_value(0 as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:354:9
[INFO] [stderr]     |
[INFO] [stderr] 354 |         try!(self.add_value(1 as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:359:19
[INFO] [stderr]     |
[INFO] [stderr] 359 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:361:9
[INFO] [stderr]     |
[INFO] [stderr] 361 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:384:9
[INFO] [stderr]     |
[INFO] [stderr] 384 |         try!(self.add_value(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:389:19
[INFO] [stderr]     |
[INFO] [stderr] 389 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:391:9
[INFO] [stderr]     |
[INFO] [stderr] 391 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:406:9
[INFO] [stderr]     |
[INFO] [stderr] 406 |         try!(self.add_value(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:434:9
[INFO] [stderr]     |
[INFO] [stderr] 434 |         try!(self.add_value(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/de/mod.rs:51:26
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/de/mod.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let value: u8 = try!(serde::Deserialize::deserialize(self));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 102 |     impl_nums!(u16, deserialize_u16, visit_u16, read_u16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 103 |     impl_nums!(u32, deserialize_u32, visit_u32, read_u32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |     impl_nums!(u64, deserialize_u64, visit_u64, read_u64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 105 |     impl_nums!(i16, deserialize_i16, visit_i16, read_i16);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 106 |     impl_nums!(i32, deserialize_i32, visit_i32, read_i32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     impl_nums!(i64, deserialize_i64, visit_i64, read_i64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 108 |     impl_nums!(f32, deserialize_f32, visit_f32, read_f32);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |     impl_nums!(f64, deserialize_f64, visit_f64, read_f64);
[INFO] [stderr]     |     ------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 112 |     impl_nums!(u128, deserialize_u128, visit_u128, read_u128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:68:13
[INFO] [stderr]     |
[INFO] [stderr] 68  |             try!(self.read_type::<$ty>());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] ...
[INFO] [stderr] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:69:25
[INFO] [stderr]     |
[INFO] [stderr] 69  |             let value = try!(self.reader.$reader_method::<O::Endian>());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 115 |     impl_nums!(i128, deserialize_i128, visit_i128, read_i128);
[INFO] [stderr]     |     ---------------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(self.read_type::<u8>());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:143:26
[INFO] [stderr]     |
[INFO] [stderr] 143 |         visitor.visit_u8(try!(self.reader.read_u8()))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         try!(self.read_type::<i8>());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:152:26
[INFO] [stderr]     |
[INFO] [stderr] 152 |         visitor.visit_i8(try!(self.reader.read_i8()))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let _ = try!(self.reader.read_exact(&mut buf[..1]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:186:19
[INFO] [stderr]     |
[INFO] [stderr] 186 |         let res = try!(
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:199:26
[INFO] [stderr]     |
[INFO] [stderr] 199 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         try!(self.read_bytes(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:208:30
[INFO] [stderr]     |
[INFO] [stderr] 208 |         visitor.visit_string(try!(self.read_string()))
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:215:26
[INFO] [stderr]     |
[INFO] [stderr] 215 |         let len: usize = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:216:9
[INFO] [stderr]     |
[INFO] [stderr] 216 |         try!(self.read_bytes(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:224:32
[INFO] [stderr]     |
[INFO] [stderr] 224 |         visitor.visit_byte_buf(try!(self.read_vec()))
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:248:32
[INFO] [stderr]     |
[INFO] [stderr] 248 |                 let idx: u32 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:250:21
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 Ok((try!(val), self))
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:277:33
[INFO] [stderr]     |
[INFO] [stderr] 277 |                     let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:302:25
[INFO] [stderr]     |
[INFO] [stderr] 302 |         let value: u8 = try!(serde::de::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:314:19
[INFO] [stderr]     |
[INFO] [stderr] 314 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:339:31
[INFO] [stderr]     |
[INFO] [stderr] 339 |                     let key = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:353:29
[INFO] [stderr]     |
[INFO] [stderr] 353 |                 let value = try!(serde::de::DeserializeSeed::deserialize(
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/de/mod.rs:365:19
[INFO] [stderr]     |
[INFO] [stderr] 365 |         let len = try!(serde::Deserialize::deserialize(&mut *self));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:128:9
[INFO] [stderr]     |
[INFO] [stderr] 128 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         try!(self.serialize_u64(v.len() as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         try!(self.writer.write_u8(1));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:156:19
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:180:9
[INFO] [stderr]     |
[INFO] [stderr] 180 |         try!(self.serialize_u32(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:185:19
[INFO] [stderr]     |
[INFO] [stderr] 185 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:186:9
[INFO] [stderr]     |
[INFO] [stderr] 186 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         try!(self.serialize_u32(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:222:9
[INFO] [stderr]     |
[INFO] [stderr] 222 |         try!(self.serialize_u32(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:333:9
[INFO] [stderr]     |
[INFO] [stderr] 333 |         try!(self.add_value(0 as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:342:9
[INFO] [stderr]     |
[INFO] [stderr] 342 |         try!(self.add_value(0 as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:354:9
[INFO] [stderr]     |
[INFO] [stderr] 354 |         try!(self.add_value(1 as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:359:19
[INFO] [stderr]     |
[INFO] [stderr] 359 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:361:9
[INFO] [stderr]     |
[INFO] [stderr] 361 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:384:9
[INFO] [stderr]     |
[INFO] [stderr] 384 |         try!(self.add_value(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:389:19
[INFO] [stderr]     |
[INFO] [stderr] 389 |         let len = try!(len.ok_or(ErrorKind::SequenceMustHaveLength));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:391:9
[INFO] [stderr]     |
[INFO] [stderr] 391 |         try!(self.serialize_u64(len as u64));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:406:9
[INFO] [stderr]     |
[INFO] [stderr] 406 |         try!(self.add_value(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ser/mod.rs:434:9
[INFO] [stderr]     |
[INFO] [stderr] 434 |         try!(self.add_value(variant_index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/ser/mod.rs:245:5
[INFO] [stderr]     |
[INFO] [stderr] 245 |     pub fn new(options: O) -> SizeChecker<O> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/ser/mod.rs:245:5
[INFO] [stderr]     |
[INFO] [stderr] 245 |     pub fn new(options: O) -> SizeChecker<O> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
[INFO] running `"docker" "inspect" "db112e88983f276ef0e2138fba0d2b34c2516b1235ffcfeab72a8a01a54f090f"`
[INFO] running `"docker" "rm" "-f" "db112e88983f276ef0e2138fba0d2b34c2516b1235ffcfeab72a8a01a54f090f"`
[INFO] [stdout] db112e88983f276ef0e2138fba0d2b34c2516b1235ffcfeab72a8a01a54f090f