[INFO] fetching crate hound 3.4.0...
[INFO] testing hound-3.4.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate hound 3.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate hound 3.4.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate hound 3.4.0
[INFO] finished tweaking crates.io crate hound 3.4.0
[INFO] tweaked toml for crates.io crate hound 3.4.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] e05eb89ded05d2d5ecb978d7133a81e03a2273d87abfba383dda76046138c509
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e05eb89ded05d2d5ecb978d7133a81e03a2273d87abfba383dda76046138c509"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hound v3.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let progress = try!(self.read(&mut buf[n..]));
[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/read.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let progress = try!(self.read(&mut buf[0..end]));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(self.read_into(&mut buf[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:271:20
[INFO] [stderr]     |
[INFO] [stderr] 271 |     if b"RIFF" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let file_len = try!(reader.read_le_u32());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:278:20
[INFO] [stderr]     |
[INFO] [stderr] 278 |     if b"WAVE" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:296:22
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let header = try!(WavReader::read_chunk_header(&mut reader));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:299:28
[INFO] [stderr]     |
[INFO] [stderr] 299 |                 let spec = try!(WavReader::read_fmt_chunk(&mut reader, header.len));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:326:17
[INFO] [stderr]     |
[INFO] [stderr] 326 |                 try!(reader.skip_bytes(header.len as usize));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:340:9
[INFO] [stderr]     |
[INFO] [stderr] 340 |         try!(reader.read_into(&mut kind_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:341:19
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let len = try!(reader.read_le_u32());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:400:26
[INFO] [stderr]     |
[INFO] [stderr] 400 |         let format_tag = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:401:26
[INFO] [stderr]     |
[INFO] [stderr] 401 |         let n_channels = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:402:33
[INFO] [stderr]     |
[INFO] [stderr] 402 |         let n_samples_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:403:31
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let n_bytes_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:404:27
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let block_align = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:405:31
[INFO] [stderr]     |
[INFO] [stderr] 405 |         let bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:469:28
[INFO] [stderr]     |
[INFO] [stderr] 469 |             let _cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:487:13
[INFO] [stderr]     |
[INFO] [stderr] 487 |             try!(reader.skip_bytes(22));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:510:27
[INFO] [stderr]     |
[INFO] [stderr] 510 |             let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:546:23
[INFO] [stderr]     |
[INFO] [stderr] 546 |         let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:568:37
[INFO] [stderr]     |
[INFO] [stderr] 568 |         let valid_bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:569:29
[INFO] [stderr]     |
[INFO] [stderr] 569 |         let _channel_mask = try!(reader.read_le_u32()); // Not used for now.
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:571:9
[INFO] [stderr]     |
[INFO] [stderr] 571 |         try!(reader.read_into(&mut subformat));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:599:9
[INFO] [stderr]     |
[INFO] [stderr] 599 |         try!(read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:600:35
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let (spec_ex, data_len) = try!(read_until_data(&mut reader));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:711:9
[INFO] [stderr]     |
[INFO] [stderr] 711 |         try!(self.reader.seek(io::SeekFrom::Current(offset_bytes)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:723:20
[INFO] [stderr]     |
[INFO] [stderr] 723 |         let file = try!(fs::File::open(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         try!(writer.write_headers(fmt_kind));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |             try!(buffer.write_all("RIFF".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             try!(buffer.write_all("WAVE".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(buffer.write_all("fmt ".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |                     try!(self.write_pcmwaveformat(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:252:21
[INFO] [stderr]     |
[INFO] [stderr] 252 |                     try!(self.write_waveformatextensible(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |             try!(buffer.write_all("data".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         try!(buffer.write_le_u16(spec.channels));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:279:9
[INFO] [stderr]     |
[INFO] [stderr] 279 |         try!(buffer.write_le_u32(spec.sample_rate));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:285:9
[INFO] [stderr]     |
[INFO] [stderr] 285 |         try!(buffer.write_le_u32(bytes_per_sec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |         try!(buffer.write_le_u16((bytes_per_sec / spec.sample_rate) as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         try!(buffer.write_le_u32(16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:306:17
[INFO] [stderr]     |
[INFO] [stderr] 306 |                 try!(buffer.write_le_u16(1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |                     try!(buffer.write_le_u16(3));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:323:9
[INFO] [stderr]     |
[INFO] [stderr] 323 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:335:9
[INFO] [stderr]     |
[INFO] [stderr] 335 |         try!(buffer.write_le_u32(40));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:343:9
[INFO] [stderr]     |
[INFO] [stderr] 343 |         try!(buffer.write_le_u16(0xfffe));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:345:9
[INFO] [stderr]     |
[INFO] [stderr] 345 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:349:9
[INFO] [stderr]     |
[INFO] [stderr] 349 |         try!(buffer.write_le_u16(self.bytes_per_sample as u16 * 8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         try!(buffer.write_le_u16(22));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(buffer.write_le_u32(channel_mask(self.spec.channels)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:374:9
[INFO] [stderr]     |
[INFO] [stderr] 374 |         try!(buffer.write_all(&subformat_guid));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:386:9
[INFO] [stderr]     |
[INFO] [stderr] 386 |         try!(sample.write(&mut self.writer, self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:446:9
[INFO] [stderr]     |
[INFO] [stderr] 446 |         try!(self.writer.seek(io::SeekFrom::Start(4)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:447:9
[INFO] [stderr]     |
[INFO] [stderr] 447 |         try!(self.writer.write_le_u32(file_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |         try!(self.writer.seek(io::SeekFrom::Start(self.data_len_offset as u64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |         try!(self.writer.write_le_u32(self.data_bytes_written));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:480:27
[INFO] [stderr]     |
[INFO] [stderr] 480 |         let current_pos = try!(self.writer.seek(io::SeekFrom::Current(0)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:482:9
[INFO] [stderr]     |
[INFO] [stderr] 482 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         try!(self.writer.seek(io::SeekFrom::Start(current_pos)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:494:9
[INFO] [stderr]     |
[INFO] [stderr] 494 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:499:9
[INFO] [stderr]     |
[INFO] [stderr] 499 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:549:9
[INFO] [stderr]     |
[INFO] [stderr] 549 |         try!(read::read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |         try!(read::read_until_data(&mut reader))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:555:27
[INFO] [stderr]     |
[INFO] [stderr] 555 |     let data_len_offset = try!(reader.seek(io::SeekFrom::Current(0))) as u32 - 4;
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:600:20
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let file = try!(fs::File::create(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:614:24
[INFO] [stderr]     |
[INFO] [stderr] 614 |         let mut file = try!(fs::OpenOptions::new().read(true).write(true).open(filename));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         try!(file.seek(io::SeekFrom::Start(0)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:619:52
[INFO] [stderr]     |
[INFO] [stderr] 619 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut buf_reader));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |         try!(file.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:655:52
[INFO] [stderr]     |
[INFO] [stderr] 655 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut writer));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         try!(writer.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:770:9
[INFO] [stderr]     |
[INFO] [stderr] 770 |         try!(self.writer.write_all(&self.buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:179:21
[INFO] [stderr]     |
[INFO] [stderr] 179 |             8 => Ok(try!(writer.write_u8(u8_from_signed(self)))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:180:22
[INFO] [stderr]     |
[INFO] [stderr] 180 |             16 => Ok(try!(writer.write_le_i16(self as i16))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:181:22
[INFO] [stderr]     |
[INFO] [stderr] 181 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:182:22
[INFO] [stderr]     |
[INFO] [stderr] 182 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:197:26
[INFO] [stderr]     |
[INFO] [stderr] 197 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:21
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:57
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |             16 => Ok(try!(writer.write_le_i16(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:210:22
[INFO] [stderr]     |
[INFO] [stderr] 210 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:211:22
[INFO] [stderr]     |
[INFO] [stderr] 211 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:226:26
[INFO] [stderr]     |
[INFO] [stderr] 226 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i16))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:227:27
[INFO] [stderr]     |
[INFO] [stderr] 227 |             (2, 16) => Ok(try!(reader.read_le_i16())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:21
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:57
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:47
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:22
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:47
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:241:22
[INFO] [stderr]     |
[INFO] [stderr] 241 |             32 => Ok(try!(writer.write_le_i32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:256:26
[INFO] [stderr]     |
[INFO] [stderr] 256 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i32))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:257:27
[INFO] [stderr]     |
[INFO] [stderr] 257 |             (2, 16) => Ok(try!(reader.read_le_i16().map(|x| x as i32))),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:258:27
[INFO] [stderr]     |
[INFO] [stderr] 258 |             (3, 24) => Ok(try!(reader.read_le_i24())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:259:27
[INFO] [stderr]     |
[INFO] [stderr] 259 |             (4, 32) => Ok(try!(reader.read_le_i32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |             32 => Ok(try!(writer.write_le_f32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:284:27
[INFO] [stderr]     |
[INFO] [stderr] 284 |             (4, 32) => Ok(try!(reader.read_le_f32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |                 try!(formatter.write_str("Ill-formed WAVE file: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/write.rs:734:13
[INFO] [stderr]     |
[INFO] [stderr] 15  | use std::mem;
[INFO] [stderr]     |     -------- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 734 |         use std::mem;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:390:32
[INFO] [stderr]     |
[INFO] [stderr] 390 |     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 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:381:44
[INFO] [stderr]     |
[INFO] [stderr] 381 |             Error::IoError(ref err) => err.description(),
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 109 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "e05eb89ded05d2d5ecb978d7133a81e03a2273d87abfba383dda76046138c509"`
[INFO] running `"docker" "rm" "-f" "e05eb89ded05d2d5ecb978d7133a81e03a2273d87abfba383dda76046138c509"`
[INFO] [stdout] e05eb89ded05d2d5ecb978d7133a81e03a2273d87abfba383dda76046138c509
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 66a76a0d5e044722454add88acade8299dbcff4f75997eb5e19a44b7886d7dc0
[INFO] running `"docker" "start" "-a" "66a76a0d5e044722454add88acade8299dbcff4f75997eb5e19a44b7886d7dc0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let progress = try!(self.read(&mut buf[n..]));
[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/read.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let progress = try!(self.read(&mut buf[0..end]));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(self.read_into(&mut buf[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:271:20
[INFO] [stderr]     |
[INFO] [stderr] 271 |     if b"RIFF" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let file_len = try!(reader.read_le_u32());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:278:20
[INFO] [stderr]     |
[INFO] [stderr] 278 |     if b"WAVE" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:296:22
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let header = try!(WavReader::read_chunk_header(&mut reader));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:299:28
[INFO] [stderr]     |
[INFO] [stderr] 299 |                 let spec = try!(WavReader::read_fmt_chunk(&mut reader, header.len));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:326:17
[INFO] [stderr]     |
[INFO] [stderr] 326 |                 try!(reader.skip_bytes(header.len as usize));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:340:9
[INFO] [stderr]     |
[INFO] [stderr] 340 |         try!(reader.read_into(&mut kind_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:341:19
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let len = try!(reader.read_le_u32());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:400:26
[INFO] [stderr]     |
[INFO] [stderr] 400 |         let format_tag = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:401:26
[INFO] [stderr]     |
[INFO] [stderr] 401 |         let n_channels = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:402:33
[INFO] [stderr]     |
[INFO] [stderr] 402 |         let n_samples_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:403:31
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let n_bytes_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:404:27
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let block_align = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:405:31
[INFO] [stderr]     |
[INFO] [stderr] 405 |         let bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:469:28
[INFO] [stderr]     |
[INFO] [stderr] 469 |             let _cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:487:13
[INFO] [stderr]     |
[INFO] [stderr] 487 |             try!(reader.skip_bytes(22));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:510:27
[INFO] [stderr]     |
[INFO] [stderr] 510 |             let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:546:23
[INFO] [stderr]     |
[INFO] [stderr] 546 |         let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:568:37
[INFO] [stderr]     |
[INFO] [stderr] 568 |         let valid_bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:569:29
[INFO] [stderr]     |
[INFO] [stderr] 569 |         let _channel_mask = try!(reader.read_le_u32()); // Not used for now.
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:571:9
[INFO] [stderr]     |
[INFO] [stderr] 571 |         try!(reader.read_into(&mut subformat));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:599:9
[INFO] [stderr]     |
[INFO] [stderr] 599 |         try!(read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:600:35
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let (spec_ex, data_len) = try!(read_until_data(&mut reader));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:711:9
[INFO] [stderr]     |
[INFO] [stderr] 711 |         try!(self.reader.seek(io::SeekFrom::Current(offset_bytes)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:723:20
[INFO] [stderr]     |
[INFO] [stderr] 723 |         let file = try!(fs::File::open(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         try!(writer.write_headers(fmt_kind));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |             try!(buffer.write_all("RIFF".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             try!(buffer.write_all("WAVE".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(buffer.write_all("fmt ".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |                     try!(self.write_pcmwaveformat(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:252:21
[INFO] [stderr]     |
[INFO] [stderr] 252 |                     try!(self.write_waveformatextensible(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |             try!(buffer.write_all("data".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         try!(buffer.write_le_u16(spec.channels));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:279:9
[INFO] [stderr]     |
[INFO] [stderr] 279 |         try!(buffer.write_le_u32(spec.sample_rate));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:285:9
[INFO] [stderr]     |
[INFO] [stderr] 285 |         try!(buffer.write_le_u32(bytes_per_sec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |         try!(buffer.write_le_u16((bytes_per_sec / spec.sample_rate) as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         try!(buffer.write_le_u32(16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:306:17
[INFO] [stderr]     |
[INFO] [stderr] 306 |                 try!(buffer.write_le_u16(1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |                     try!(buffer.write_le_u16(3));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:323:9
[INFO] [stderr]     |
[INFO] [stderr] 323 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:335:9
[INFO] [stderr]     |
[INFO] [stderr] 335 |         try!(buffer.write_le_u32(40));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:343:9
[INFO] [stderr]     |
[INFO] [stderr] 343 |         try!(buffer.write_le_u16(0xfffe));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:345:9
[INFO] [stderr]     |
[INFO] [stderr] 345 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:349:9
[INFO] [stderr]     |
[INFO] [stderr] 349 |         try!(buffer.write_le_u16(self.bytes_per_sample as u16 * 8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         try!(buffer.write_le_u16(22));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(buffer.write_le_u32(channel_mask(self.spec.channels)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:374:9
[INFO] [stderr]     |
[INFO] [stderr] 374 |         try!(buffer.write_all(&subformat_guid));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:386:9
[INFO] [stderr]     |
[INFO] [stderr] 386 |         try!(sample.write(&mut self.writer, self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:446:9
[INFO] [stderr]     |
[INFO] [stderr] 446 |         try!(self.writer.seek(io::SeekFrom::Start(4)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:447:9
[INFO] [stderr]     |
[INFO] [stderr] 447 |         try!(self.writer.write_le_u32(file_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |         try!(self.writer.seek(io::SeekFrom::Start(self.data_len_offset as u64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |         try!(self.writer.write_le_u32(self.data_bytes_written));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:480:27
[INFO] [stderr]     |
[INFO] [stderr] 480 |         let current_pos = try!(self.writer.seek(io::SeekFrom::Current(0)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:482:9
[INFO] [stderr]     |
[INFO] [stderr] 482 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         try!(self.writer.seek(io::SeekFrom::Start(current_pos)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:494:9
[INFO] [stderr]     |
[INFO] [stderr] 494 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:499:9
[INFO] [stderr]     |
[INFO] [stderr] 499 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:549:9
[INFO] [stderr]     |
[INFO] [stderr] 549 |         try!(read::read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |         try!(read::read_until_data(&mut reader))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:555:27
[INFO] [stderr]     |
[INFO] [stderr] 555 |     let data_len_offset = try!(reader.seek(io::SeekFrom::Current(0))) as u32 - 4;
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:600:20
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let file = try!(fs::File::create(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:614:24
[INFO] [stderr]     |
[INFO] [stderr] 614 |         let mut file = try!(fs::OpenOptions::new().read(true).write(true).open(filename));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         try!(file.seek(io::SeekFrom::Start(0)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:619:52
[INFO] [stderr]     |
[INFO] [stderr] 619 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut buf_reader));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |         try!(file.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:655:52
[INFO] [stderr]     |
[INFO] [stderr] 655 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut writer));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         try!(writer.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:770:9
[INFO] [stderr]     |
[INFO] [stderr] 770 |         try!(self.writer.write_all(&self.buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:179:21
[INFO] [stderr]     |
[INFO] [stderr] 179 |             8 => Ok(try!(writer.write_u8(u8_from_signed(self)))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:180:22
[INFO] [stderr]     |
[INFO] [stderr] 180 |             16 => Ok(try!(writer.write_le_i16(self as i16))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:181:22
[INFO] [stderr]     |
[INFO] [stderr] 181 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:182:22
[INFO] [stderr]     |
[INFO] [stderr] 182 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:197:26
[INFO] [stderr]     |
[INFO] [stderr] 197 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:21
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:57
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |             16 => Ok(try!(writer.write_le_i16(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:210:22
[INFO] [stderr]     |
[INFO] [stderr] 210 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:211:22
[INFO] [stderr]     |
[INFO] [stderr] 211 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:226:26
[INFO] [stderr]     |
[INFO] [stderr] 226 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i16))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:227:27
[INFO] [stderr]     |
[INFO] [stderr] 227 |             (2, 16) => Ok(try!(reader.read_le_i16())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:21
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:57
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:47
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:22
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:47
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:241:22
[INFO] [stderr]     |
[INFO] [stderr] 241 |             32 => Ok(try!(writer.write_le_i32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:256:26
[INFO] [stderr]     |
[INFO] [stderr] 256 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i32))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:257:27
[INFO] [stderr]     |
[INFO] [stderr] 257 |             (2, 16) => Ok(try!(reader.read_le_i16().map(|x| x as i32))),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:258:27
[INFO] [stderr]     |
[INFO] [stderr] 258 |             (3, 24) => Ok(try!(reader.read_le_i24())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:259:27
[INFO] [stderr]     |
[INFO] [stderr] 259 |             (4, 32) => Ok(try!(reader.read_le_i32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |             32 => Ok(try!(writer.write_le_f32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:284:27
[INFO] [stderr]     |
[INFO] [stderr] 284 |             (4, 32) => Ok(try!(reader.read_le_f32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |                 try!(formatter.write_str("Ill-formed WAVE file: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/write.rs:734:13
[INFO] [stderr]     |
[INFO] [stderr] 15  | use std::mem;
[INFO] [stderr]     |     -------- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 734 |         use std::mem;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:390:32
[INFO] [stderr]     |
[INFO] [stderr] 390 |     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 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:381:44
[INFO] [stderr]     |
[INFO] [stderr] 381 |             Error::IoError(ref err) => err.description(),
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 109 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]    Compiling ole32-sys v0.2.0
[INFO] [stderr]    Compiling cpal v0.2.12
[INFO] [stderr]    Compiling hound v3.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let progress = try!(self.read(&mut buf[n..]));
[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/read.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let progress = try!(self.read(&mut buf[0..end]));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(self.read_into(&mut buf[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:271:20
[INFO] [stderr]     |
[INFO] [stderr] 271 |     if b"RIFF" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let file_len = try!(reader.read_le_u32());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:278:20
[INFO] [stderr]     |
[INFO] [stderr] 278 |     if b"WAVE" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:296:22
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let header = try!(WavReader::read_chunk_header(&mut reader));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:299:28
[INFO] [stderr]     |
[INFO] [stderr] 299 |                 let spec = try!(WavReader::read_fmt_chunk(&mut reader, header.len));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:326:17
[INFO] [stderr]     |
[INFO] [stderr] 326 |                 try!(reader.skip_bytes(header.len as usize));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:340:9
[INFO] [stderr]     |
[INFO] [stderr] 340 |         try!(reader.read_into(&mut kind_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:341:19
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let len = try!(reader.read_le_u32());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:400:26
[INFO] [stderr]     |
[INFO] [stderr] 400 |         let format_tag = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:401:26
[INFO] [stderr]     |
[INFO] [stderr] 401 |         let n_channels = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:402:33
[INFO] [stderr]     |
[INFO] [stderr] 402 |         let n_samples_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:403:31
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let n_bytes_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:404:27
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let block_align = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:405:31
[INFO] [stderr]     |
[INFO] [stderr] 405 |         let bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:469:28
[INFO] [stderr]     |
[INFO] [stderr] 469 |             let _cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:487:13
[INFO] [stderr]     |
[INFO] [stderr] 487 |             try!(reader.skip_bytes(22));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:510:27
[INFO] [stderr]     |
[INFO] [stderr] 510 |             let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:546:23
[INFO] [stderr]     |
[INFO] [stderr] 546 |         let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:568:37
[INFO] [stderr]     |
[INFO] [stderr] 568 |         let valid_bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:569:29
[INFO] [stderr]     |
[INFO] [stderr] 569 |         let _channel_mask = try!(reader.read_le_u32()); // Not used for now.
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:571:9
[INFO] [stderr]     |
[INFO] [stderr] 571 |         try!(reader.read_into(&mut subformat));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:599:9
[INFO] [stderr]     |
[INFO] [stderr] 599 |         try!(read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:600:35
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let (spec_ex, data_len) = try!(read_until_data(&mut reader));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:711:9
[INFO] [stderr]     |
[INFO] [stderr] 711 |         try!(self.reader.seek(io::SeekFrom::Current(offset_bytes)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:723:20
[INFO] [stderr]     |
[INFO] [stderr] 723 |         let file = try!(fs::File::open(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         try!(writer.write_headers(fmt_kind));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |             try!(buffer.write_all("RIFF".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             try!(buffer.write_all("WAVE".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(buffer.write_all("fmt ".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |                     try!(self.write_pcmwaveformat(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:252:21
[INFO] [stderr]     |
[INFO] [stderr] 252 |                     try!(self.write_waveformatextensible(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |             try!(buffer.write_all("data".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         try!(buffer.write_le_u16(spec.channels));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:279:9
[INFO] [stderr]     |
[INFO] [stderr] 279 |         try!(buffer.write_le_u32(spec.sample_rate));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:285:9
[INFO] [stderr]     |
[INFO] [stderr] 285 |         try!(buffer.write_le_u32(bytes_per_sec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |         try!(buffer.write_le_u16((bytes_per_sec / spec.sample_rate) as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         try!(buffer.write_le_u32(16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:306:17
[INFO] [stderr]     |
[INFO] [stderr] 306 |                 try!(buffer.write_le_u16(1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |                     try!(buffer.write_le_u16(3));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:323:9
[INFO] [stderr]     |
[INFO] [stderr] 323 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:335:9
[INFO] [stderr]     |
[INFO] [stderr] 335 |         try!(buffer.write_le_u32(40));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:343:9
[INFO] [stderr]     |
[INFO] [stderr] 343 |         try!(buffer.write_le_u16(0xfffe));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:345:9
[INFO] [stderr]     |
[INFO] [stderr] 345 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:349:9
[INFO] [stderr]     |
[INFO] [stderr] 349 |         try!(buffer.write_le_u16(self.bytes_per_sample as u16 * 8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         try!(buffer.write_le_u16(22));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(buffer.write_le_u32(channel_mask(self.spec.channels)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:374:9
[INFO] [stderr]     |
[INFO] [stderr] 374 |         try!(buffer.write_all(&subformat_guid));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:386:9
[INFO] [stderr]     |
[INFO] [stderr] 386 |         try!(sample.write(&mut self.writer, self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:446:9
[INFO] [stderr]     |
[INFO] [stderr] 446 |         try!(self.writer.seek(io::SeekFrom::Start(4)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:447:9
[INFO] [stderr]     |
[INFO] [stderr] 447 |         try!(self.writer.write_le_u32(file_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |         try!(self.writer.seek(io::SeekFrom::Start(self.data_len_offset as u64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |         try!(self.writer.write_le_u32(self.data_bytes_written));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:480:27
[INFO] [stderr]     |
[INFO] [stderr] 480 |         let current_pos = try!(self.writer.seek(io::SeekFrom::Current(0)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:482:9
[INFO] [stderr]     |
[INFO] [stderr] 482 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         try!(self.writer.seek(io::SeekFrom::Start(current_pos)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:494:9
[INFO] [stderr]     |
[INFO] [stderr] 494 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:499:9
[INFO] [stderr]     |
[INFO] [stderr] 499 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:549:9
[INFO] [stderr]     |
[INFO] [stderr] 549 |         try!(read::read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |         try!(read::read_until_data(&mut reader))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:555:27
[INFO] [stderr]     |
[INFO] [stderr] 555 |     let data_len_offset = try!(reader.seek(io::SeekFrom::Current(0))) as u32 - 4;
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:600:20
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let file = try!(fs::File::create(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:614:24
[INFO] [stderr]     |
[INFO] [stderr] 614 |         let mut file = try!(fs::OpenOptions::new().read(true).write(true).open(filename));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         try!(file.seek(io::SeekFrom::Start(0)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:619:52
[INFO] [stderr]     |
[INFO] [stderr] 619 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut buf_reader));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |         try!(file.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:655:52
[INFO] [stderr]     |
[INFO] [stderr] 655 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut writer));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         try!(writer.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:770:9
[INFO] [stderr]     |
[INFO] [stderr] 770 |         try!(self.writer.write_all(&self.buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:179:21
[INFO] [stderr]     |
[INFO] [stderr] 179 |             8 => Ok(try!(writer.write_u8(u8_from_signed(self)))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:180:22
[INFO] [stderr]     |
[INFO] [stderr] 180 |             16 => Ok(try!(writer.write_le_i16(self as i16))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:181:22
[INFO] [stderr]     |
[INFO] [stderr] 181 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:182:22
[INFO] [stderr]     |
[INFO] [stderr] 182 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:197:26
[INFO] [stderr]     |
[INFO] [stderr] 197 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:21
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:57
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |             16 => Ok(try!(writer.write_le_i16(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:210:22
[INFO] [stderr]     |
[INFO] [stderr] 210 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:211:22
[INFO] [stderr]     |
[INFO] [stderr] 211 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:226:26
[INFO] [stderr]     |
[INFO] [stderr] 226 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i16))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:227:27
[INFO] [stderr]     |
[INFO] [stderr] 227 |             (2, 16) => Ok(try!(reader.read_le_i16())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:21
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:57
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:47
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:22
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:47
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:241:22
[INFO] [stderr]     |
[INFO] [stderr] 241 |             32 => Ok(try!(writer.write_le_i32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:256:26
[INFO] [stderr]     |
[INFO] [stderr] 256 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i32))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:257:27
[INFO] [stderr]     |
[INFO] [stderr] 257 |             (2, 16) => Ok(try!(reader.read_le_i16().map(|x| x as i32))),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:258:27
[INFO] [stderr]     |
[INFO] [stderr] 258 |             (3, 24) => Ok(try!(reader.read_le_i24())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:259:27
[INFO] [stderr]     |
[INFO] [stderr] 259 |             (4, 32) => Ok(try!(reader.read_le_i32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |             32 => Ok(try!(writer.write_le_f32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:284:27
[INFO] [stderr]     |
[INFO] [stderr] 284 |             (4, 32) => Ok(try!(reader.read_le_f32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |                 try!(formatter.write_str("Ill-formed WAVE file: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/write.rs:734:13
[INFO] [stderr]     |
[INFO] [stderr] 15  | use std::mem;
[INFO] [stderr]     |     -------- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 734 |         use std::mem;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:390:32
[INFO] [stderr]     |
[INFO] [stderr] 390 |     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 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:381:44
[INFO] [stderr]     |
[INFO] [stderr] 381 |             Error::IoError(ref err) => err.description(),
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 109 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.99s
[INFO] running `"docker" "inspect" "66a76a0d5e044722454add88acade8299dbcff4f75997eb5e19a44b7886d7dc0"`
[INFO] running `"docker" "rm" "-f" "66a76a0d5e044722454add88acade8299dbcff4f75997eb5e19a44b7886d7dc0"`
[INFO] [stdout] 66a76a0d5e044722454add88acade8299dbcff4f75997eb5e19a44b7886d7dc0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa8091ee3f374ae9250b46c48e1a165e2804688ba708d7b125a0ac9c4632311a
[INFO] running `"docker" "start" "-a" "aa8091ee3f374ae9250b46c48e1a165e2804688ba708d7b125a0ac9c4632311a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let progress = try!(self.read(&mut buf[n..]));
[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/read.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let progress = try!(self.read(&mut buf[0..end]));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(self.read_into(&mut buf[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:271:20
[INFO] [stderr]     |
[INFO] [stderr] 271 |     if b"RIFF" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let file_len = try!(reader.read_le_u32());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:278:20
[INFO] [stderr]     |
[INFO] [stderr] 278 |     if b"WAVE" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:296:22
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let header = try!(WavReader::read_chunk_header(&mut reader));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:299:28
[INFO] [stderr]     |
[INFO] [stderr] 299 |                 let spec = try!(WavReader::read_fmt_chunk(&mut reader, header.len));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:326:17
[INFO] [stderr]     |
[INFO] [stderr] 326 |                 try!(reader.skip_bytes(header.len as usize));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:340:9
[INFO] [stderr]     |
[INFO] [stderr] 340 |         try!(reader.read_into(&mut kind_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:341:19
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let len = try!(reader.read_le_u32());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:400:26
[INFO] [stderr]     |
[INFO] [stderr] 400 |         let format_tag = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:401:26
[INFO] [stderr]     |
[INFO] [stderr] 401 |         let n_channels = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:402:33
[INFO] [stderr]     |
[INFO] [stderr] 402 |         let n_samples_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:403:31
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let n_bytes_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:404:27
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let block_align = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:405:31
[INFO] [stderr]     |
[INFO] [stderr] 405 |         let bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:469:28
[INFO] [stderr]     |
[INFO] [stderr] 469 |             let _cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:487:13
[INFO] [stderr]     |
[INFO] [stderr] 487 |             try!(reader.skip_bytes(22));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:510:27
[INFO] [stderr]     |
[INFO] [stderr] 510 |             let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:546:23
[INFO] [stderr]     |
[INFO] [stderr] 546 |         let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:568:37
[INFO] [stderr]     |
[INFO] [stderr] 568 |         let valid_bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:569:29
[INFO] [stderr]     |
[INFO] [stderr] 569 |         let _channel_mask = try!(reader.read_le_u32()); // Not used for now.
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:571:9
[INFO] [stderr]     |
[INFO] [stderr] 571 |         try!(reader.read_into(&mut subformat));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:599:9
[INFO] [stderr]     |
[INFO] [stderr] 599 |         try!(read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:600:35
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let (spec_ex, data_len) = try!(read_until_data(&mut reader));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:711:9
[INFO] [stderr]     |
[INFO] [stderr] 711 |         try!(self.reader.seek(io::SeekFrom::Current(offset_bytes)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:723:20
[INFO] [stderr]     |
[INFO] [stderr] 723 |         let file = try!(fs::File::open(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         try!(writer.write_headers(fmt_kind));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |             try!(buffer.write_all("RIFF".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             try!(buffer.write_all("WAVE".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(buffer.write_all("fmt ".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |                     try!(self.write_pcmwaveformat(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:252:21
[INFO] [stderr]     |
[INFO] [stderr] 252 |                     try!(self.write_waveformatextensible(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |             try!(buffer.write_all("data".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         try!(buffer.write_le_u16(spec.channels));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:279:9
[INFO] [stderr]     |
[INFO] [stderr] 279 |         try!(buffer.write_le_u32(spec.sample_rate));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:285:9
[INFO] [stderr]     |
[INFO] [stderr] 285 |         try!(buffer.write_le_u32(bytes_per_sec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |         try!(buffer.write_le_u16((bytes_per_sec / spec.sample_rate) as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         try!(buffer.write_le_u32(16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:306:17
[INFO] [stderr]     |
[INFO] [stderr] 306 |                 try!(buffer.write_le_u16(1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |                     try!(buffer.write_le_u16(3));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:323:9
[INFO] [stderr]     |
[INFO] [stderr] 323 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:335:9
[INFO] [stderr]     |
[INFO] [stderr] 335 |         try!(buffer.write_le_u32(40));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:343:9
[INFO] [stderr]     |
[INFO] [stderr] 343 |         try!(buffer.write_le_u16(0xfffe));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:345:9
[INFO] [stderr]     |
[INFO] [stderr] 345 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:349:9
[INFO] [stderr]     |
[INFO] [stderr] 349 |         try!(buffer.write_le_u16(self.bytes_per_sample as u16 * 8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         try!(buffer.write_le_u16(22));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(buffer.write_le_u32(channel_mask(self.spec.channels)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:374:9
[INFO] [stderr]     |
[INFO] [stderr] 374 |         try!(buffer.write_all(&subformat_guid));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:386:9
[INFO] [stderr]     |
[INFO] [stderr] 386 |         try!(sample.write(&mut self.writer, self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:446:9
[INFO] [stderr]     |
[INFO] [stderr] 446 |         try!(self.writer.seek(io::SeekFrom::Start(4)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:447:9
[INFO] [stderr]     |
[INFO] [stderr] 447 |         try!(self.writer.write_le_u32(file_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |         try!(self.writer.seek(io::SeekFrom::Start(self.data_len_offset as u64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |         try!(self.writer.write_le_u32(self.data_bytes_written));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:480:27
[INFO] [stderr]     |
[INFO] [stderr] 480 |         let current_pos = try!(self.writer.seek(io::SeekFrom::Current(0)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:482:9
[INFO] [stderr]     |
[INFO] [stderr] 482 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         try!(self.writer.seek(io::SeekFrom::Start(current_pos)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:494:9
[INFO] [stderr]     |
[INFO] [stderr] 494 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:499:9
[INFO] [stderr]     |
[INFO] [stderr] 499 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:549:9
[INFO] [stderr]     |
[INFO] [stderr] 549 |         try!(read::read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |         try!(read::read_until_data(&mut reader))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:555:27
[INFO] [stderr]     |
[INFO] [stderr] 555 |     let data_len_offset = try!(reader.seek(io::SeekFrom::Current(0))) as u32 - 4;
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:600:20
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let file = try!(fs::File::create(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:614:24
[INFO] [stderr]     |
[INFO] [stderr] 614 |         let mut file = try!(fs::OpenOptions::new().read(true).write(true).open(filename));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         try!(file.seek(io::SeekFrom::Start(0)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:619:52
[INFO] [stderr]     |
[INFO] [stderr] 619 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut buf_reader));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |         try!(file.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:655:52
[INFO] [stderr]     |
[INFO] [stderr] 655 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut writer));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         try!(writer.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:770:9
[INFO] [stderr]     |
[INFO] [stderr] 770 |         try!(self.writer.write_all(&self.buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:179:21
[INFO] [stderr]     |
[INFO] [stderr] 179 |             8 => Ok(try!(writer.write_u8(u8_from_signed(self)))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:180:22
[INFO] [stderr]     |
[INFO] [stderr] 180 |             16 => Ok(try!(writer.write_le_i16(self as i16))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:181:22
[INFO] [stderr]     |
[INFO] [stderr] 181 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:182:22
[INFO] [stderr]     |
[INFO] [stderr] 182 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:197:26
[INFO] [stderr]     |
[INFO] [stderr] 197 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:21
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:57
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |             16 => Ok(try!(writer.write_le_i16(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:210:22
[INFO] [stderr]     |
[INFO] [stderr] 210 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:211:22
[INFO] [stderr]     |
[INFO] [stderr] 211 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:226:26
[INFO] [stderr]     |
[INFO] [stderr] 226 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i16))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:227:27
[INFO] [stderr]     |
[INFO] [stderr] 227 |             (2, 16) => Ok(try!(reader.read_le_i16())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:21
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:57
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:47
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:22
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:47
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:241:22
[INFO] [stderr]     |
[INFO] [stderr] 241 |             32 => Ok(try!(writer.write_le_i32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:256:26
[INFO] [stderr]     |
[INFO] [stderr] 256 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i32))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:257:27
[INFO] [stderr]     |
[INFO] [stderr] 257 |             (2, 16) => Ok(try!(reader.read_le_i16().map(|x| x as i32))),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:258:27
[INFO] [stderr]     |
[INFO] [stderr] 258 |             (3, 24) => Ok(try!(reader.read_le_i24())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:259:27
[INFO] [stderr]     |
[INFO] [stderr] 259 |             (4, 32) => Ok(try!(reader.read_le_i32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |             32 => Ok(try!(writer.write_le_f32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:284:27
[INFO] [stderr]     |
[INFO] [stderr] 284 |             (4, 32) => Ok(try!(reader.read_le_f32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |                 try!(formatter.write_str("Ill-formed WAVE file: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/write.rs:734:13
[INFO] [stderr]     |
[INFO] [stderr] 15  | use std::mem;
[INFO] [stderr]     |     -------- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 734 |         use std::mem;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:390:32
[INFO] [stderr]     |
[INFO] [stderr] 390 |     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 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:381:44
[INFO] [stderr]     |
[INFO] [stderr] 381 |             Error::IoError(ref err) => err.description(),
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 109 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/read.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let progress = try!(self.read(&mut buf[n..]));
[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/read.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let progress = try!(self.read(&mut buf[0..end]));
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(self.read_into(&mut buf[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:139:9
[INFO] [stderr]     |
[INFO] [stderr] 139 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:159:9
[INFO] [stderr]     |
[INFO] [stderr] 159 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:171:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         try!(self.read_into(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:271:20
[INFO] [stderr]     |
[INFO] [stderr] 271 |     if b"RIFF" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:275:20
[INFO] [stderr]     |
[INFO] [stderr] 275 |     let file_len = try!(reader.read_le_u32());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:278:20
[INFO] [stderr]     |
[INFO] [stderr] 278 |     if b"WAVE" != &try!(reader.read_bytes(4))[..] {
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:296:22
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let header = try!(WavReader::read_chunk_header(&mut reader));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:299:28
[INFO] [stderr]     |
[INFO] [stderr] 299 |                 let spec = try!(WavReader::read_fmt_chunk(&mut reader, header.len));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:326:17
[INFO] [stderr]     |
[INFO] [stderr] 326 |                 try!(reader.skip_bytes(header.len as usize));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:340:9
[INFO] [stderr]     |
[INFO] [stderr] 340 |         try!(reader.read_into(&mut kind_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:341:19
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let len = try!(reader.read_le_u32());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:400:26
[INFO] [stderr]     |
[INFO] [stderr] 400 |         let format_tag = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:401:26
[INFO] [stderr]     |
[INFO] [stderr] 401 |         let n_channels = try!(reader.read_le_u16());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:402:33
[INFO] [stderr]     |
[INFO] [stderr] 402 |         let n_samples_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:403:31
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let n_bytes_per_sec = try!(reader.read_le_u32());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:404:27
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let block_align = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:405:31
[INFO] [stderr]     |
[INFO] [stderr] 405 |         let bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:469:28
[INFO] [stderr]     |
[INFO] [stderr] 469 |             let _cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:487:13
[INFO] [stderr]     |
[INFO] [stderr] 487 |             try!(reader.skip_bytes(22));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:510:27
[INFO] [stderr]     |
[INFO] [stderr] 510 |             let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:546:23
[INFO] [stderr]     |
[INFO] [stderr] 546 |         let cb_size = try!(reader.read_le_u16());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:568:37
[INFO] [stderr]     |
[INFO] [stderr] 568 |         let valid_bits_per_sample = try!(reader.read_le_u16());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:569:29
[INFO] [stderr]     |
[INFO] [stderr] 569 |         let _channel_mask = try!(reader.read_le_u32()); // Not used for now.
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:571:9
[INFO] [stderr]     |
[INFO] [stderr] 571 |         try!(reader.read_into(&mut subformat));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:599:9
[INFO] [stderr]     |
[INFO] [stderr] 599 |         try!(read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:600:35
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let (spec_ex, data_len) = try!(read_until_data(&mut reader));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:711:9
[INFO] [stderr]     |
[INFO] [stderr] 711 |         try!(self.reader.seek(io::SeekFrom::Current(offset_bytes)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/read.rs:723:20
[INFO] [stderr]     |
[INFO] [stderr] 723 |         let file = try!(fs::File::open(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         try!(writer.write_headers(fmt_kind));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:239:13
[INFO] [stderr]     |
[INFO] [stderr] 239 |             try!(buffer.write_all("RIFF".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             try!(buffer.write_all("WAVE".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(buffer.write_all("fmt ".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:249:21
[INFO] [stderr]     |
[INFO] [stderr] 249 |                     try!(self.write_pcmwaveformat(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:252:21
[INFO] [stderr]     |
[INFO] [stderr] 252 |                     try!(self.write_waveformatextensible(&mut buffer));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |             try!(buffer.write_all("data".as_bytes()));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |             try!(buffer.write_le_u32(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:276:9
[INFO] [stderr]     |
[INFO] [stderr] 276 |         try!(buffer.write_le_u16(spec.channels));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:279:9
[INFO] [stderr]     |
[INFO] [stderr] 279 |         try!(buffer.write_le_u32(spec.sample_rate));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:285:9
[INFO] [stderr]     |
[INFO] [stderr] 285 |         try!(buffer.write_le_u32(bytes_per_sec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 |         try!(buffer.write_le_u16((bytes_per_sec / spec.sample_rate) as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:296:9
[INFO] [stderr]     |
[INFO] [stderr] 296 |         try!(buffer.write_le_u32(16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:306:17
[INFO] [stderr]     |
[INFO] [stderr] 306 |                 try!(buffer.write_le_u16(1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:311:21
[INFO] [stderr]     |
[INFO] [stderr] 311 |                     try!(buffer.write_le_u16(3));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:320:9
[INFO] [stderr]     |
[INFO] [stderr] 320 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:323:9
[INFO] [stderr]     |
[INFO] [stderr] 323 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:335:9
[INFO] [stderr]     |
[INFO] [stderr] 335 |         try!(buffer.write_le_u32(40));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:343:9
[INFO] [stderr]     |
[INFO] [stderr] 343 |         try!(buffer.write_le_u16(0xfffe));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:345:9
[INFO] [stderr]     |
[INFO] [stderr] 345 |         try!(self.write_waveformat(buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:349:9
[INFO] [stderr]     |
[INFO] [stderr] 349 |         try!(buffer.write_le_u16(self.bytes_per_sample as u16 * 8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         try!(buffer.write_le_u16(22));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:353:9
[INFO] [stderr]     |
[INFO] [stderr] 353 |         try!(buffer.write_le_u16(self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(buffer.write_le_u32(channel_mask(self.spec.channels)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:374:9
[INFO] [stderr]     |
[INFO] [stderr] 374 |         try!(buffer.write_all(&subformat_guid));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:386:9
[INFO] [stderr]     |
[INFO] [stderr] 386 |         try!(sample.write(&mut self.writer, self.spec.bits_per_sample));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:446:9
[INFO] [stderr]     |
[INFO] [stderr] 446 |         try!(self.writer.seek(io::SeekFrom::Start(4)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:447:9
[INFO] [stderr]     |
[INFO] [stderr] 447 |         try!(self.writer.write_le_u32(file_size));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:448:9
[INFO] [stderr]     |
[INFO] [stderr] 448 |         try!(self.writer.seek(io::SeekFrom::Start(self.data_len_offset as u64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |         try!(self.writer.write_le_u32(self.data_bytes_written));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:480:27
[INFO] [stderr]     |
[INFO] [stderr] 480 |         let current_pos = try!(self.writer.seek(io::SeekFrom::Current(0)));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:481:9
[INFO] [stderr]     |
[INFO] [stderr] 481 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:482:9
[INFO] [stderr]     |
[INFO] [stderr] 482 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:483:9
[INFO] [stderr]     |
[INFO] [stderr] 483 |         try!(self.writer.seek(io::SeekFrom::Start(current_pos)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:494:9
[INFO] [stderr]     |
[INFO] [stderr] 494 |         try!(self.update_header());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:499:9
[INFO] [stderr]     |
[INFO] [stderr] 499 |         try!(self.writer.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:549:9
[INFO] [stderr]     |
[INFO] [stderr] 549 |         try!(read::read_wave_header(&mut reader));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:550:9
[INFO] [stderr]     |
[INFO] [stderr] 550 |         try!(read::read_until_data(&mut reader))
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:555:27
[INFO] [stderr]     |
[INFO] [stderr] 555 |     let data_len_offset = try!(reader.seek(io::SeekFrom::Current(0))) as u32 - 4;
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:600:20
[INFO] [stderr]     |
[INFO] [stderr] 600 |         let file = try!(fs::File::create(filename));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:614:24
[INFO] [stderr]     |
[INFO] [stderr] 614 |         let mut file = try!(fs::OpenOptions::new().read(true).write(true).open(filename));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         try!(file.seek(io::SeekFrom::Start(0)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:619:52
[INFO] [stderr]     |
[INFO] [stderr] 619 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut buf_reader));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |         try!(file.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:655:52
[INFO] [stderr]     |
[INFO] [stderr] 655 |         let (spec_ex, data_len, data_len_offset) = try!(read_append(&mut writer));
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         try!(writer.seek(io::SeekFrom::Current(data_len as i64)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/write.rs:770:9
[INFO] [stderr]     |
[INFO] [stderr] 770 |         try!(self.writer.write_all(&self.buffer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:179:21
[INFO] [stderr]     |
[INFO] [stderr] 179 |             8 => Ok(try!(writer.write_u8(u8_from_signed(self)))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:180:22
[INFO] [stderr]     |
[INFO] [stderr] 180 |             16 => Ok(try!(writer.write_le_i16(self as i16))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:181:22
[INFO] [stderr]     |
[INFO] [stderr] 181 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:182:22
[INFO] [stderr]     |
[INFO] [stderr] 182 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:197:26
[INFO] [stderr]     |
[INFO] [stderr] 197 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:21
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:208:57
[INFO] [stderr]     |
[INFO] [stderr] 208 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self as i32)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |             16 => Ok(try!(writer.write_le_i16(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:210:22
[INFO] [stderr]     |
[INFO] [stderr] 210 |             24 => Ok(try!(writer.write_le_i24(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:211:22
[INFO] [stderr]     |
[INFO] [stderr] 211 |             32 => Ok(try!(writer.write_le_i32(self as i32))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:226:26
[INFO] [stderr]     |
[INFO] [stderr] 226 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i16))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:227:27
[INFO] [stderr]     |
[INFO] [stderr] 227 |             (2, 16) => Ok(try!(reader.read_le_i16())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:21
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:238:57
[INFO] [stderr]     |
[INFO] [stderr] 238 |             8 => Ok(try!(writer.write_u8(u8_from_signed(try!(narrow_to_i8(self)))))),
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:22
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:239:47
[INFO] [stderr]     |
[INFO] [stderr] 239 |             16 => Ok(try!(writer.write_le_i16(try!(narrow_to_i16(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:22
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:240:47
[INFO] [stderr]     |
[INFO] [stderr] 240 |             24 => Ok(try!(writer.write_le_i24(try!(narrow_to_i24(self))))),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:241:22
[INFO] [stderr]     |
[INFO] [stderr] 241 |             32 => Ok(try!(writer.write_le_i32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:256:26
[INFO] [stderr]     |
[INFO] [stderr] 256 |             (1, 8) => Ok(try!(reader.read_u8().map(signed_from_u8).map(|x| x as i32))),
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:257:27
[INFO] [stderr]     |
[INFO] [stderr] 257 |             (2, 16) => Ok(try!(reader.read_le_i16().map(|x| x as i32))),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:258:27
[INFO] [stderr]     |
[INFO] [stderr] 258 |             (3, 24) => Ok(try!(reader.read_le_i24())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:259:27
[INFO] [stderr]     |
[INFO] [stderr] 259 |             (4, 32) => Ok(try!(reader.read_le_i32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:270:22
[INFO] [stderr]     |
[INFO] [stderr] 270 |             32 => Ok(try!(writer.write_le_f32(self))),
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:284:27
[INFO] [stderr]     |
[INFO] [stderr] 284 |             (4, 32) => Ok(try!(reader.read_le_f32())),
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:358:17
[INFO] [stderr]     |
[INFO] [stderr] 358 |                 try!(formatter.write_str("Ill-formed WAVE file: "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/write.rs:734:13
[INFO] [stderr]     |
[INFO] [stderr] 15  | use std::mem;
[INFO] [stderr]     |     -------- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 734 |         use std::mem;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:390:32
[INFO] [stderr]     |
[INFO] [stderr] 390 |     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 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:381:44
[INFO] [stderr]     |
[INFO] [stderr] 381 |             Error::IoError(ref err) => err.description(),
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 109 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hound-0579d3df65caf4fb
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test flush_should_produce_valid_file ... ok
[INFO] [stdout] test read::read_wav_pcm_wave_format_8bit ... ok
[INFO] [stdout] test read::read_wav_pcm_wave_format_pcm ... ok
[INFO] [stdout] test read::len_and_size_hint_are_correct ... ok
[INFO] [stdout] test read::read_wav_skips_unknown_chunks ... ok
[INFO] [stdout] test read::read_wav_wave_format_ex_pcm ... ok
[INFO] [stdout] test read::read_wav_wave_format_ex_ieee_float ... ok
[INFO] [stdout] test read::read_wav_wave_format_extensible_ieee_float ... ok
[INFO] [stdout] test read::read_wav_wave_format_extensible_pcm_24bit ... ok
[INFO] [stdout] test read::fuzz_crashes_should_be_fixed ... ok
[INFO] [stdout] test read::sample_format_mismatch_should_signal_error ... ok
[INFO] [stdout] test read::read_wav_32bit ... ok
[INFO] [stdout] test read::samples_equals_into_samples ... ok
[INFO] [stdout] test new_append_does_not_corrupt_files ... ok
[INFO] [stdout] test new_append_should_append ... ok
[INFO] [stdout] test read::duration_and_len_agree ... ok
[INFO] [stdout] test write::short_write_should_signal_error ... ok
[INFO] [stdout] test read::wide_read_should_signal_error ... ok
[INFO] [stdout] test verify_narrow_to_i16 ... ok
[INFO] [stdout] test verify_narrow_to_i24 ... ok
[INFO] [stdout] test write::wide_write_should_signal_error ... ok
[INFO] [stdout] test verify_narrow_to_i8 ... ok
[INFO] [stdout] test read::read_wav_wave_format_ex_8bit ... ok
[INFO] [stdout] test read::seek_is_consistent ... ok
[INFO] [stdout] test write::verify_channel_mask ... ok
[INFO] [stdout] test read::read_wav_nonstandard_01 ... ok
[INFO] [stdout] test write_read_f32_is_lossless ... ok
[INFO] [stdout] test u8_sign_conversion_is_bijective ... ok
[INFO] [stdout] test read::size_hint_is_exact ... ok
[INFO] [stdout] test write_read_i16_via_sample_writer_is_lossless ... ok
[INFO] [stdout] test write_read_i8_is_lossless ... ok
[INFO] [stdout] test write_read_i16_is_lossless ... ok
[INFO] [stdout] test read::read_wav_stereo ... ok
[INFO] [stdout] test write_read_i24_is_lossless ... ok
[INFO] [stdout] test no_32_bps_for_float_sample_format_panics ... ok
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stdout] test append_works_on_files ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- append_works_on_files stdout ----
[INFO] [stdout] thread 'append_works_on_files' panicked at 'called `Result::unwrap()` on an `Err` value: IoError(Os { code: 30, kind: Other, message: "Read-only file system" })', src/lib.rs:771:22
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55fb2cfadc94 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x55fb2cfadc94 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55fb2cfadc94 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x55fb2cfadc94 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x55fb2cfd76bc - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x55fb2cf61155 - std::io::Write::write_fmt::h42f0550b6bd39c6e
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x55fb2cfa7ed1 - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h223d7b7033cad46d
[INFO] [stdout]                                at src/libstd/io/impls.rs:156
[INFO] [stdout]    7:     0x55fb2cfb0565 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    8:     0x55fb2cfb0565 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    9:     0x55fb2cfb0565 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]   10:     0x55fb2cfb024b - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:215
[INFO] [stdout]   11:     0x55fb2cfb0bc2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   12:     0x55fb2cfb07ab - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   13:     0x55fb2cfd5761 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   14:     0x55fb2cfd5583 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   15:     0x55fb2cf538fc - core::result::Result<T,E>::unwrap::h1795195ac1c299a8
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/result.rs:1005
[INFO] [stdout]   16:     0x55fb2cf30176 - hound::append_works_on_files::h2a433fe7d693fb91
[INFO] [stdout]                                at src/lib.rs:771
[INFO] [stdout]   17:     0x55fb2cf300ba - hound::append_works_on_files::{{closure}}::h3d14a93df8cea3fc
[INFO] [stdout]                                at src/lib.rs:761
[INFO] [stdout]   18:     0x55fb2cf57fae - core::ops::function::FnOnce::call_once::hbe346aeaf0d02758
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232
[INFO] [stdout]   19:     0x55fb2cf885e6 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hc165f65f4331a55c
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   20:     0x55fb2cf885e6 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb89f1f769cad07ce
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318
[INFO] [stdout]   21:     0x55fb2cf885e6 - std::panicking::try::do_call::h104f7f3dae5a1b29
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331
[INFO] [stdout]   22:     0x55fb2cf885e6 - std::panicking::try::h0e20f01361cba753
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274
[INFO] [stdout]   23:     0x55fb2cf885e6 - std::panic::catch_unwind::h0bd0c84b5f4cd121
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394
[INFO] [stdout]   24:     0x55fb2cf885e6 - test::run_test_in_process::hf34c22adfeb6853d
[INFO] [stdout]                                at src/libtest/lib.rs:541
[INFO] [stdout]   25:     0x55fb2cf885e6 - test::run_test::run_test_inner::{{closure}}::h40d568b4c10a12f1
[INFO] [stdout]                                at src/libtest/lib.rs:450
[INFO] [stdout]   26:     0x55fb2cf60606 - std::sys_common::backtrace::__rust_begin_short_backtrace::hffd9774ad3f2d778
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/sys_common/backtrace.rs:130
[INFO] [stdout]   27:     0x55fb2cf65995 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h4594020476cf52d4
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:475
[INFO] [stdout]   28:     0x55fb2cf65995 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9d0a6d45b73e29e4
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318
[INFO] [stdout]   29:     0x55fb2cf65995 - std::panicking::try::do_call::h902fd77b30bb3bb7
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331
[INFO] [stdout]   30:     0x55fb2cf65995 - std::panicking::try::hc17d3a628e65d49d
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274
[INFO] [stdout]   31:     0x55fb2cf65995 - std::panic::catch_unwind::h9c9d49cbb6b18017
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394
[INFO] [stdout]   32:     0x55fb2cf65995 - std::thread::Builder::spawn_unchecked::{{closure}}::h6a6f5a333fd631a2
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:474
[INFO] [stdout]   33:     0x55fb2cf65995 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha6fb197e0ce57f73
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232
[INFO] [stdout]   34:     0x55fb2cfb778a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h1f1fac7de7dd9691
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   35:     0x55fb2cfb778a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::ha031f48633a6af54
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   36:     0x55fb2cfb778a - std::sys::unix::thread::Thread::new::thread_start::h241864caf436e182
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:87
[INFO] [stdout]   37:     0x7f9aba0e6609 - start_thread
[INFO] [stdout]   38:     0x7f9ab9ff2103 - __clone
[INFO] [stdout]   39:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     append_works_on_files
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 35 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "aa8091ee3f374ae9250b46c48e1a165e2804688ba708d7b125a0ac9c4632311a"`
[INFO] running `"docker" "rm" "-f" "aa8091ee3f374ae9250b46c48e1a165e2804688ba708d7b125a0ac9c4632311a"`
[INFO] [stdout] aa8091ee3f374ae9250b46c48e1a165e2804688ba708d7b125a0ac9c4632311a