[INFO] crate beam_file 0.2.4 is already in cache
[INFO] checking beam_file-0.2.4 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate beam_file 0.2.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate beam_file 0.2.4 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate beam_file 0.2.4
[INFO] finished tweaking crates.io crate beam_file 0.2.4
[INFO] tweaked toml for crates.io crate beam_file 0.2.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "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] 4ff67c07e1d6b9af0f69c2b0b87e33be5cd960765d082b2c886f99b50dedd30f
[INFO] running `"docker" "start" "-a" "4ff67c07e1d6b9af0f69c2b0b87e33be5cd960765d082b2c886f99b50dedd30f"`
[INFO] [stderr]     Checking beam_file v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let f = try!(File::open(path));
[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/beam_file.rs:29:22
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let header = try!(Header::from_reader(&mut reader));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         try!(reader.read_exact(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:47:25
[INFO] [stderr]    |
[INFO] [stderr] 47 |             chunks.push(try!(C::decode(&mut cursor)));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let f = try!(File::create(path));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |             try!(chunk.encode(&mut buf));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         try!(header.to_writer(&mut writer));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |         try!(writer.write_all(&buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         try!(reader.read_exact(&mut header.magic_number));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:85:31
[INFO] [stderr]    |
[INFO] [stderr] 85 |         header.payload_size = try!(reader.read_u32::<BigEndian>());
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(reader.read_exact(&mut header.type_id));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         try!(writer.write_all(&self.magic_number));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         try!(writer.write_u32::<BigEndian>(self.payload_size));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         try!(writer.write_all(&self.type_id));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:29:22
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let header = try!(aux::Header::decode(&mut reader));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!(reader.read_exact(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |             try!(reader.read_u8());
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         try!(self.encode_data(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         try!(aux::Header::new(self.id(), buf.len() as u32).encode(&mut writer,));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         try!(writer.write_all(&buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             try!(writer.write_u8(0));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         try!(writer.write_all(&self.data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:119:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 try!(aux::check_chunk_id(id, b"AtU8"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:127:23
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let len = try!(reader.read_u8()) as usize;
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             try!(reader.read_exact(&mut buf));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:131:24
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let name = try!(str::from_utf8(&buf).map(|s| s.to_string()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(writer.write_u32::<BigEndian>(self.atoms.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |             try!(writer.write_u8(atom.name.len() as u8));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |             try!(writer.write_all(atom.name.as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:181:9
[INFO] [stderr]     |
[INFO] [stderr] 181 |         try!(aux::check_chunk_id(id, b"Code"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:183:24
[INFO] [stderr]     |
[INFO] [stderr] 183 |             info_size: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:184:22
[INFO] [stderr]     |
[INFO] [stderr] 184 |             version: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:185:25
[INFO] [stderr]     |
[INFO] [stderr] 185 |             opcode_max: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:186:26
[INFO] [stderr]     |
[INFO] [stderr] 186 |             label_count: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:187:29
[INFO] [stderr]     |
[INFO] [stderr] 187 |             function_count: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:190:9
[INFO] [stderr]     |
[INFO] [stderr] 190 |         try!(reader.read_to_end(&mut code.bytecode));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 194 |         try!(writer.write_u32::<BigEndian>(self.info_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:195:9
[INFO] [stderr]     |
[INFO] [stderr] 195 |         try!(writer.write_u32::<BigEndian>(self.version));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         try!(writer.write_u32::<BigEndian>(self.opcode_max));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         try!(writer.write_u32::<BigEndian>(self.label_count));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         try!(writer.write_u32::<BigEndian>(self.function_count));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 |         try!(writer.write_all(&self.bytecode));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |         try!(aux::check_chunk_id(id, b"StrT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         try!(writer.write_all(&self.strings));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |         try!(aux::check_chunk_id(id, b"ImpT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |                 module: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:249:27
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:250:24
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:256:9
[INFO] [stderr]     |
[INFO] [stderr] 256 |         try!(writer.write_u32::<BigEndian>(self.imports.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:258:13
[INFO] [stderr]     |
[INFO] [stderr] 258 |             try!(writer.write_u32::<BigEndian>(import.module));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |             try!(writer.write_u32::<BigEndian>(import.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |             try!(writer.write_u32::<BigEndian>(import.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:280:9
[INFO] [stderr]     |
[INFO] [stderr] 280 |         try!(aux::check_chunk_id(id, b"ExpT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:281:21
[INFO] [stderr]     |
[INFO] [stderr] 281 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:285:27
[INFO] [stderr]     |
[INFO] [stderr] 285 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:286:24
[INFO] [stderr]     |
[INFO] [stderr] 286 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:287:24
[INFO] [stderr]     |
[INFO] [stderr] 287 |                 label: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 |         try!(writer.write_u32::<BigEndian>(self.exports.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:295:13
[INFO] [stderr]     |
[INFO] [stderr] 295 |             try!(writer.write_u32::<BigEndian>(export.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:296:13
[INFO] [stderr]     |
[INFO] [stderr] 296 |             try!(writer.write_u32::<BigEndian>(export.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:297:13
[INFO] [stderr]     |
[INFO] [stderr] 297 |             try!(writer.write_u32::<BigEndian>(export.label));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         try!(aux::check_chunk_id(id, b"LitT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:321:34
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let _uncompressed_size = try!(reader.read_u32::<BigEndian>());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:322:27
[INFO] [stderr]     |
[INFO] [stderr] 322 |         let mut decoder = try!(zlib::Decoder::new(reader));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:324:21
[INFO] [stderr]     |
[INFO] [stderr] 324 |         let count = try!(decoder.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:327:32
[INFO] [stderr]     |
[INFO] [stderr] 327 |             let literal_size = try!(decoder.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 |             try!(decoder.read_exact(&mut buf));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:339:9
[INFO] [stderr]     |
[INFO] [stderr] 339 |         try!(writer.write_u32::<BigEndian>(uncompressed_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:341:27
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let mut encoder = try!(zlib::Encoder::new(writer));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:342:9
[INFO] [stderr]     |
[INFO] [stderr] 342 |         try!(encoder.write_u32::<BigEndian>(self.literals.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:344:13
[INFO] [stderr]     |
[INFO] [stderr] 344 |             try!(encoder.write_u32::<BigEndian>(literal.len() as u32));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:345:13
[INFO] [stderr]     |
[INFO] [stderr] 345 |             try!(encoder.write_all(literal));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:347:9
[INFO] [stderr]     |
[INFO] [stderr] 347 |         try!(encoder.finish().into_result());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:366:9
[INFO] [stderr]     |
[INFO] [stderr] 366 |         try!(aux::check_chunk_id(id, b"LocT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:367:21
[INFO] [stderr]     |
[INFO] [stderr] 367 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:371:27
[INFO] [stderr]     |
[INFO] [stderr] 371 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:372:24
[INFO] [stderr]     |
[INFO] [stderr] 372 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:373:24
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 label: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:379:9
[INFO] [stderr]     |
[INFO] [stderr] 379 |         try!(writer.write_u32::<BigEndian>(self.locals.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:381:13
[INFO] [stderr]     |
[INFO] [stderr] 381 |             try!(writer.write_u32::<BigEndian>(local.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:382:13
[INFO] [stderr]     |
[INFO] [stderr] 382 |             try!(writer.write_u32::<BigEndian>(local.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:383:13
[INFO] [stderr]     |
[INFO] [stderr] 383 |             try!(writer.write_u32::<BigEndian>(local.label));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |         try!(aux::check_chunk_id(id, b"FunT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:404:21
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:408:27
[INFO] [stderr]     |
[INFO] [stderr] 408 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:409:24
[INFO] [stderr]     |
[INFO] [stderr] 409 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:410:24
[INFO] [stderr]     |
[INFO] [stderr] 410 |                 label: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:411:24
[INFO] [stderr]     |
[INFO] [stderr] 411 |                 index: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:412:27
[INFO] [stderr]     |
[INFO] [stderr] 412 |                 num_free: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:413:27
[INFO] [stderr]     |
[INFO] [stderr] 413 |                 old_uniq: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:419:9
[INFO] [stderr]     |
[INFO] [stderr] 419 |         try!(writer.write_u32::<BigEndian>(self.functions.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:421:13
[INFO] [stderr]     |
[INFO] [stderr] 421 |             try!(writer.write_u32::<BigEndian>(f.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:422:13
[INFO] [stderr]     |
[INFO] [stderr] 422 |             try!(writer.write_u32::<BigEndian>(f.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:423:13
[INFO] [stderr]     |
[INFO] [stderr] 423 |             try!(writer.write_u32::<BigEndian>(f.label));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:424:13
[INFO] [stderr]     |
[INFO] [stderr] 424 |             try!(writer.write_u32::<BigEndian>(f.index));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:425:13
[INFO] [stderr]     |
[INFO] [stderr] 425 |             try!(writer.write_u32::<BigEndian>(f.num_free));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:426:13
[INFO] [stderr]     |
[INFO] [stderr] 426 |             try!(writer.write_u32::<BigEndian>(f.old_uniq));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:451:9
[INFO] [stderr]     |
[INFO] [stderr] 451 |         try!(aux::check_chunk_id(id, b"Attr"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:453:9
[INFO] [stderr]     |
[INFO] [stderr] 453 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:457:9
[INFO] [stderr]     |
[INFO] [stderr] 457 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         try!(aux::check_chunk_id(id, b"CInf"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:487:9
[INFO] [stderr]     |
[INFO] [stderr] 487 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:510:9
[INFO] [stderr]     |
[INFO] [stderr] 510 |         try!(aux::check_chunk_id(id, b"Abst"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:512:9
[INFO] [stderr]     |
[INFO] [stderr] 512 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:516:9
[INFO] [stderr]     |
[INFO] [stderr] 516 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:549:9
[INFO] [stderr]     |
[INFO] [stderr] 549 |         try!(aux::check_chunk_id(id, b"Dbgi"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:551:9
[INFO] [stderr]     |
[INFO] [stderr] 551 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:555:9
[INFO] [stderr]     |
[INFO] [stderr] 555 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:599:9
[INFO] [stderr]     |
[INFO] [stderr] 599 |         try!(aux::check_chunk_id(id, b"Docs"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let f = try!(File::open(path));
[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/beam_file.rs:29:22
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let header = try!(Header::from_reader(&mut reader));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         try!(reader.read_exact(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:47:25
[INFO] [stderr]    |
[INFO] [stderr] 47 |             chunks.push(try!(C::decode(&mut cursor)));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let f = try!(File::create(path));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |             try!(chunk.encode(&mut buf));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         try!(header.to_writer(&mut writer));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |         try!(writer.write_all(&buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:84:9
[INFO] [stderr]    |
[INFO] [stderr] 84 |         try!(reader.read_exact(&mut header.magic_number));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:85:31
[INFO] [stderr]    |
[INFO] [stderr] 85 |         header.payload_size = try!(reader.read_u32::<BigEndian>());
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(reader.read_exact(&mut header.type_id));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         try!(writer.write_all(&self.magic_number));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |         try!(writer.write_u32::<BigEndian>(self.payload_size));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/beam_file.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         try!(writer.write_all(&self.type_id));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:29:22
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let header = try!(aux::Header::decode(&mut reader));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!(reader.read_exact(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |             try!(reader.read_u8());
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         try!(self.encode_data(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         try!(aux::Header::new(self.id(), buf.len() as u32).encode(&mut writer,));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         try!(writer.write_all(&buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |             try!(writer.write_u8(0));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/chunk.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         try!(writer.write_all(&self.data));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:119:17
[INFO] [stderr]     |
[INFO] [stderr] 119 |                 try!(aux::check_chunk_id(id, b"AtU8"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:127:23
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let len = try!(reader.read_u8()) as usize;
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             try!(reader.read_exact(&mut buf));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:131:24
[INFO] [stderr]     |
[INFO] [stderr] 131 |             let name = try!(str::from_utf8(&buf).map(|s| s.to_string()));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(writer.write_u32::<BigEndian>(self.atoms.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |             try!(writer.write_u8(atom.name.len() as u8));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |             try!(writer.write_all(atom.name.as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:181:9
[INFO] [stderr]     |
[INFO] [stderr] 181 |         try!(aux::check_chunk_id(id, b"Code"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:183:24
[INFO] [stderr]     |
[INFO] [stderr] 183 |             info_size: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:184:22
[INFO] [stderr]     |
[INFO] [stderr] 184 |             version: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:185:25
[INFO] [stderr]     |
[INFO] [stderr] 185 |             opcode_max: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:186:26
[INFO] [stderr]     |
[INFO] [stderr] 186 |             label_count: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:187:29
[INFO] [stderr]     |
[INFO] [stderr] 187 |             function_count: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:190:9
[INFO] [stderr]     |
[INFO] [stderr] 190 |         try!(reader.read_to_end(&mut code.bytecode));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 194 |         try!(writer.write_u32::<BigEndian>(self.info_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:195:9
[INFO] [stderr]     |
[INFO] [stderr] 195 |         try!(writer.write_u32::<BigEndian>(self.version));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         try!(writer.write_u32::<BigEndian>(self.opcode_max));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         try!(writer.write_u32::<BigEndian>(self.label_count));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         try!(writer.write_u32::<BigEndian>(self.function_count));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 |         try!(writer.write_all(&self.bytecode));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |         try!(aux::check_chunk_id(id, b"StrT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         try!(writer.write_all(&self.strings));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |         try!(aux::check_chunk_id(id, b"ImpT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |                 module: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:249:27
[INFO] [stderr]     |
[INFO] [stderr] 249 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:250:24
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:256:9
[INFO] [stderr]     |
[INFO] [stderr] 256 |         try!(writer.write_u32::<BigEndian>(self.imports.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:258:13
[INFO] [stderr]     |
[INFO] [stderr] 258 |             try!(writer.write_u32::<BigEndian>(import.module));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |             try!(writer.write_u32::<BigEndian>(import.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |             try!(writer.write_u32::<BigEndian>(import.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:280:9
[INFO] [stderr]     |
[INFO] [stderr] 280 |         try!(aux::check_chunk_id(id, b"ExpT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:281:21
[INFO] [stderr]     |
[INFO] [stderr] 281 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:285:27
[INFO] [stderr]     |
[INFO] [stderr] 285 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:286:24
[INFO] [stderr]     |
[INFO] [stderr] 286 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:287:24
[INFO] [stderr]     |
[INFO] [stderr] 287 |                 label: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 |         try!(writer.write_u32::<BigEndian>(self.exports.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:295:13
[INFO] [stderr]     |
[INFO] [stderr] 295 |             try!(writer.write_u32::<BigEndian>(export.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:296:13
[INFO] [stderr]     |
[INFO] [stderr] 296 |             try!(writer.write_u32::<BigEndian>(export.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:297:13
[INFO] [stderr]     |
[INFO] [stderr] 297 |             try!(writer.write_u32::<BigEndian>(export.label));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         try!(aux::check_chunk_id(id, b"LitT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:321:34
[INFO] [stderr]     |
[INFO] [stderr] 321 |         let _uncompressed_size = try!(reader.read_u32::<BigEndian>());
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:322:27
[INFO] [stderr]     |
[INFO] [stderr] 322 |         let mut decoder = try!(zlib::Decoder::new(reader));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:324:21
[INFO] [stderr]     |
[INFO] [stderr] 324 |         let count = try!(decoder.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:327:32
[INFO] [stderr]     |
[INFO] [stderr] 327 |             let literal_size = try!(decoder.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 |             try!(decoder.read_exact(&mut buf));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:339:9
[INFO] [stderr]     |
[INFO] [stderr] 339 |         try!(writer.write_u32::<BigEndian>(uncompressed_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:341:27
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let mut encoder = try!(zlib::Encoder::new(writer));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:342:9
[INFO] [stderr]     |
[INFO] [stderr] 342 |         try!(encoder.write_u32::<BigEndian>(self.literals.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:344:13
[INFO] [stderr]     |
[INFO] [stderr] 344 |             try!(encoder.write_u32::<BigEndian>(literal.len() as u32));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:345:13
[INFO] [stderr]     |
[INFO] [stderr] 345 |             try!(encoder.write_all(literal));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:347:9
[INFO] [stderr]     |
[INFO] [stderr] 347 |         try!(encoder.finish().into_result());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:366:9
[INFO] [stderr]     |
[INFO] [stderr] 366 |         try!(aux::check_chunk_id(id, b"LocT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:367:21
[INFO] [stderr]     |
[INFO] [stderr] 367 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:371:27
[INFO] [stderr]     |
[INFO] [stderr] 371 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:372:24
[INFO] [stderr]     |
[INFO] [stderr] 372 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:373:24
[INFO] [stderr]     |
[INFO] [stderr] 373 |                 label: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:379:9
[INFO] [stderr]     |
[INFO] [stderr] 379 |         try!(writer.write_u32::<BigEndian>(self.locals.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:381:13
[INFO] [stderr]     |
[INFO] [stderr] 381 |             try!(writer.write_u32::<BigEndian>(local.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:382:13
[INFO] [stderr]     |
[INFO] [stderr] 382 |             try!(writer.write_u32::<BigEndian>(local.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:383:13
[INFO] [stderr]     |
[INFO] [stderr] 383 |             try!(writer.write_u32::<BigEndian>(local.label));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |         try!(aux::check_chunk_id(id, b"FunT"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:404:21
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let count = try!(reader.read_u32::<BigEndian>()) as usize;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:408:27
[INFO] [stderr]     |
[INFO] [stderr] 408 |                 function: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:409:24
[INFO] [stderr]     |
[INFO] [stderr] 409 |                 arity: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:410:24
[INFO] [stderr]     |
[INFO] [stderr] 410 |                 label: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:411:24
[INFO] [stderr]     |
[INFO] [stderr] 411 |                 index: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:412:27
[INFO] [stderr]     |
[INFO] [stderr] 412 |                 num_free: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:413:27
[INFO] [stderr]     |
[INFO] [stderr] 413 |                 old_uniq: try!(reader.read_u32::<BigEndian>()),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:419:9
[INFO] [stderr]     |
[INFO] [stderr] 419 |         try!(writer.write_u32::<BigEndian>(self.functions.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:421:13
[INFO] [stderr]     |
[INFO] [stderr] 421 |             try!(writer.write_u32::<BigEndian>(f.function));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:422:13
[INFO] [stderr]     |
[INFO] [stderr] 422 |             try!(writer.write_u32::<BigEndian>(f.arity));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:423:13
[INFO] [stderr]     |
[INFO] [stderr] 423 |             try!(writer.write_u32::<BigEndian>(f.label));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:424:13
[INFO] [stderr]     |
[INFO] [stderr] 424 |             try!(writer.write_u32::<BigEndian>(f.index));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:425:13
[INFO] [stderr]     |
[INFO] [stderr] 425 |             try!(writer.write_u32::<BigEndian>(f.num_free));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:426:13
[INFO] [stderr]     |
[INFO] [stderr] 426 |             try!(writer.write_u32::<BigEndian>(f.old_uniq));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:451:9
[INFO] [stderr]     |
[INFO] [stderr] 451 |         try!(aux::check_chunk_id(id, b"Attr"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:453:9
[INFO] [stderr]     |
[INFO] [stderr] 453 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:457:9
[INFO] [stderr]     |
[INFO] [stderr] 457 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         try!(aux::check_chunk_id(id, b"CInf"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:487:9
[INFO] [stderr]     |
[INFO] [stderr] 487 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:510:9
[INFO] [stderr]     |
[INFO] [stderr] 510 |         try!(aux::check_chunk_id(id, b"Abst"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:512:9
[INFO] [stderr]     |
[INFO] [stderr] 512 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:516:9
[INFO] [stderr]     |
[INFO] [stderr] 516 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:549:9
[INFO] [stderr]     |
[INFO] [stderr] 549 |         try!(aux::check_chunk_id(id, b"Dbgi"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:551:9
[INFO] [stderr]     |
[INFO] [stderr] 551 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:601:9
[INFO] [stderr]     |
[INFO] [stderr] 601 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:605:9
[INFO] [stderr]     |
[INFO] [stderr] 605 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:662:32
[INFO] [stderr]     |
[INFO] [stderr] 662 |             b"Atom" => Ok(Atom(try!(AtomChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:663:32
[INFO] [stderr]     |
[INFO] [stderr] 663 |             b"AtU8" => Ok(Atom(try!(AtomChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:664:32
[INFO] [stderr]     |
[INFO] [stderr] 664 |             b"Code" => Ok(Code(try!(CodeChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:665:32
[INFO] [stderr]     |
[INFO] [stderr] 665 |             b"StrT" => Ok(StrT(try!(StrTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:666:32
[INFO] [stderr]     |
[INFO] [stderr] 666 |             b"ImpT" => Ok(ImpT(try!(ImpTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:667:32
[INFO] [stderr]     |
[INFO] [stderr] 667 |             b"ExpT" => Ok(ExpT(try!(ExpTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:668:32
[INFO] [stderr]     |
[INFO] [stderr] 668 |             b"LitT" => Ok(LitT(try!(LitTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:669:32
[INFO] [stderr]     |
[INFO] [stderr] 669 |             b"LocT" => Ok(LocT(try!(LocTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:670:32
[INFO] [stderr]     |
[INFO] [stderr] 670 |             b"FunT" => Ok(FunT(try!(FunTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:671:32
[INFO] [stderr]     |
[INFO] [stderr] 671 |             b"Attr" => Ok(Attr(try!(AttrChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:672:32
[INFO] [stderr]     |
[INFO] [stderr] 672 |             b"CInf" => Ok(CInf(try!(CInfChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:673:32
[INFO] [stderr]     |
[INFO] [stderr] 673 |             b"Abst" => Ok(Abst(try!(AbstChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:674:32
[INFO] [stderr]     |
[INFO] [stderr] 674 |             b"Dbgi" => Ok(Dbgi(try!(DbgiChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:675:32
[INFO] [stderr]     |
[INFO] [stderr] 675 |             b"Docs" => Ok(Docs(try!(DocsChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:676:29
[INFO] [stderr]     |
[INFO] [stderr] 676 |             _ => Ok(Unknown(try!(RawChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:720:13
[INFO] [stderr]     |
[INFO] [stderr] 720 |             try!(reader.read_exact(&mut id));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:721:24
[INFO] [stderr]     |
[INFO] [stderr] 721 |             let size = try!(reader.read_u32::<BigEndian>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:725:13
[INFO] [stderr]     |
[INFO] [stderr] 725 |             try!(writer.write_all(&self.chunk_id));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:726:13
[INFO] [stderr]     |
[INFO] [stderr] 726 |             try!(writer.write_u32::<BigEndian>(self.data_size));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:86:32
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::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/chunk.rs:555:9
[INFO] [stderr]     |
[INFO] [stderr] 555 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:599:9
[INFO] [stderr]     |
[INFO] [stderr] 599 |         try!(aux::check_chunk_id(id, b"Docs"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:601:9
[INFO] [stderr]     |
[INFO] [stderr] 601 |         try!(reader.read_to_end(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:605:9
[INFO] [stderr]     |
[INFO] [stderr] 605 |         try!(writer.write_all(&self.term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:662:32
[INFO] [stderr]     |
[INFO] [stderr] 662 |             b"Atom" => Ok(Atom(try!(AtomChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:663:32
[INFO] [stderr]     |
[INFO] [stderr] 663 |             b"AtU8" => Ok(Atom(try!(AtomChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:664:32
[INFO] [stderr]     |
[INFO] [stderr] 664 |             b"Code" => Ok(Code(try!(CodeChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:665:32
[INFO] [stderr]     |
[INFO] [stderr] 665 |             b"StrT" => Ok(StrT(try!(StrTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:666:32
[INFO] [stderr]     |
[INFO] [stderr] 666 |             b"ImpT" => Ok(ImpT(try!(ImpTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:667:32
[INFO] [stderr]     |
[INFO] [stderr] 667 |             b"ExpT" => Ok(ExpT(try!(ExpTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:668:32
[INFO] [stderr]     |
[INFO] [stderr] 668 |             b"LitT" => Ok(LitT(try!(LitTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:669:32
[INFO] [stderr]     |
[INFO] [stderr] 669 |             b"LocT" => Ok(LocT(try!(LocTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:670:32
[INFO] [stderr]     |
[INFO] [stderr] 670 |             b"FunT" => Ok(FunT(try!(FunTChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:671:32
[INFO] [stderr]     |
[INFO] [stderr] 671 |             b"Attr" => Ok(Attr(try!(AttrChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:672:32
[INFO] [stderr]     |
[INFO] [stderr] 672 |             b"CInf" => Ok(CInf(try!(CInfChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:673:32
[INFO] [stderr]     |
[INFO] [stderr] 673 |             b"Abst" => Ok(Abst(try!(AbstChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:674:32
[INFO] [stderr]     |
[INFO] [stderr] 674 |             b"Dbgi" => Ok(Dbgi(try!(DbgiChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:675:32
[INFO] [stderr]     |
[INFO] [stderr] 675 |             b"Docs" => Ok(Docs(try!(DocsChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:676:29
[INFO] [stderr]     |
[INFO] [stderr] 676 |             _ => Ok(Unknown(try!(RawChunk::decode_data(id, reader)))),
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:720:13
[INFO] [stderr]     |
[INFO] [stderr] 720 |             try!(reader.read_exact(&mut id));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:721:24
[INFO] [stderr]     |
[INFO] [stderr] 721 |             let size = try!(reader.read_u32::<BigEndian>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:725:13
[INFO] [stderr]     |
[INFO] [stderr] 725 |             try!(writer.write_all(&self.chunk_id));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/chunk.rs:726:13
[INFO] [stderr]     |
[INFO] [stderr] 726 |             try!(writer.write_u32::<BigEndian>(self.data_size));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:86:32
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:79:35
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Error::Io(ref x) => x.description(),
[INFO] [stderr]    |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:80:46
[INFO] [stderr]    |
[INFO] [stderr] 80 |             Error::InvalidString(ref x) => x.description(),
[INFO] [stderr]    |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:79:35
[INFO] [stderr]    |
[INFO] [stderr] 79 |             Error::Io(ref x) => x.description(),
[INFO] [stderr]    |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:80:46
[INFO] [stderr]    |
[INFO] [stderr] 80 |             Error::InvalidString(ref x) => x.description(),
[INFO] [stderr]    |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> tests/lib.rs:201:33
[INFO] [stderr]     |
[INFO] [stderr] 201 |             b"LitT" => Ok(Other(try!(chunk::RawChunk::decode_data(id, reader)))),
[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]    --> tests/lib.rs:202:32
[INFO] [stderr]     |
[INFO] [stderr] 202 |             _ => Ok(Idempotent(try!(chunk::StandardChunk::decode_data(
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "4ff67c07e1d6b9af0f69c2b0b87e33be5cd960765d082b2c886f99b50dedd30f"`
[INFO] running `"docker" "rm" "-f" "4ff67c07e1d6b9af0f69c2b0b87e33be5cd960765d082b2c886f99b50dedd30f"`
[INFO] [stdout] 4ff67c07e1d6b9af0f69c2b0b87e33be5cd960765d082b2c886f99b50dedd30f
