[INFO] fetching crate metaflac 0.1.8...
[INFO] checking metaflac-0.1.8 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate metaflac 0.1.8 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate metaflac 0.1.8 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate metaflac 0.1.8
[INFO] finished tweaking crates.io crate metaflac 0.1.8
[INFO] tweaked toml for crates.io crate metaflac 0.1.8 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f846aca847ac05e3317ae884fba54b87b40c74895bcb24cf670801c938c93438
[INFO] running `"docker" "start" "-a" "f846aca847ac05e3317ae884fba54b87b40c74895bcb24cf670801c938c93438"`
[INFO] [stderr]     Checking metaflac v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/block.rs:97:22
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let header = try!(reader.read_u32::<BigEndian>());
[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/block.rs:116:62
[INFO] [stderr]     |
[INFO] [stderr] 116 |             BlockType::VorbisComment => Block::VorbisComment(try!(VorbisComment::from_bytes(&data[..]))),
[INFO] [stderr]     |                                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:117:50
[INFO] [stderr]     |
[INFO] [stderr] 117 |             BlockType::Picture => Block::Picture(try!(Picture::from_bytes(&data[..]))),
[INFO] [stderr]     |                                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:118:52
[INFO] [stderr]     |
[INFO] [stderr] 118 |             BlockType::CueSheet => Block::CueSheet(try!(CueSheet::from_bytes(&data[..]))),
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(writer.write_all(&::util::u64_to_be_bytes(header as u64, 4)[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:172:28
[INFO] [stderr]     |
[INFO] [stderr] 172 |             Some(bytes) => try!(writer.write_all(&bytes[..])),
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:179:25
[INFO] [stderr]     |
[INFO] [stderr] 179 |                         try!(writer.write_all(&zeroes[..remaining]));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:183:25
[INFO] [stderr]     |
[INFO] [stderr] 183 |                         try!(writer.write_all(&zeroes[..]));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:425:32
[INFO] [stderr]     |
[INFO] [stderr] 425 |         cuesheet.catalog_num = try!(String::from_utf8(bytes[i..i + 128].to_vec()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:450:26
[INFO] [stderr]     |
[INFO] [stderr] 450 |             track.isrc = try!(String::from_utf8(bytes[i..i + 12].to_vec()));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:655:29
[INFO] [stderr]     |
[INFO] [stderr] 655 |         picture.mime_type = try!(String::from_utf8(bytes[i..i + mime_length].to_vec()));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:661:31
[INFO] [stderr]     |
[INFO] [stderr] 661 |         picture.description = try!(String::from_utf8(bytes[i..i + description_length].to_vec()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:828:32
[INFO] [stderr]     |
[INFO] [stderr] 828 |         vorbis.vendor_string = try!(String::from_utf8(bytes[i..i + vendor_length].to_vec()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:838:28
[INFO] [stderr]     |
[INFO] [stderr] 838 |             let comments = try!(String::from_utf8(bytes[i..i + comment_length].to_vec()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:376:9
[INFO] [stderr]     |
[INFO] [stderr] 376 |         try!(reader.read(&mut ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:382:44
[INFO] [stderr]     |
[INFO] [stderr] 382 |             let (is_last, length, block) = try!(Block::read_from(reader));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:395:9
[INFO] [stderr]     |
[INFO] [stderr] 395 |         try!(writer.write(b"fLaC"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:401:28
[INFO] [stderr]     |
[INFO] [stderr] 401 |             self.length += try!(block.write_to(i == nblocks - 1, writer));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:419:27
[INFO] [stderr]     |
[INFO] [stderr] 419 |             new_length += try!(block.write_to(false, &mut writer));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:426:28
[INFO] [stderr]     |
[INFO] [stderr] 426 |             let mut file = try!(OpenOptions::new().write(true).open(self.path.as_ref().unwrap()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:427:13
[INFO] [stderr]     |
[INFO] [stderr] 427 |             try!(file.seek(SeekFrom::Start(4)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:430:17
[INFO] [stderr]     |
[INFO] [stderr] 430 |                 try!(file.write(&bytes[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:435:13
[INFO] [stderr]     |
[INFO] [stderr] 435 |             try!(padding.write_to(true, &mut file));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:447:28
[INFO] [stderr]     |
[INFO] [stderr] 447 |             let mut file = try!(OpenOptions::new().write(true).truncate(true).create(true).open(&path));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:449:13
[INFO] [stderr]     |
[INFO] [stderr] 449 |             try!(file.write(b"fLaC"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:452:17
[INFO] [stderr]     |
[INFO] [stderr] 452 |                 try!(file.write(&bytes[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:458:27
[INFO] [stderr]     |
[INFO] [stderr] 458 |             new_length += try!(padding.write_to(true, &mut file));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:462:31
[INFO] [stderr]     |
[INFO] [stderr] 462 |                 Some(data) => try!(file.write_all(&data[..])),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:474:24
[INFO] [stderr]     |
[INFO] [stderr] 474 |         let mut file = try!(File::open(&path));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:475:23
[INFO] [stderr]     |
[INFO] [stderr] 475 |         let mut tag = try!(Tag::read_from(&mut file));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/block.rs:96:35
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn read_from(reader: &mut Read) -> Result<(bool, u32, Block)> {
[INFO] [stderr]    |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/block.rs:128:56
[INFO] [stderr]     |
[INFO] [stderr] 128 |     pub fn write_to(&self, is_last: bool, writer: &mut Write) -> Result<u32> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tag.rs:372:35
[INFO] [stderr]     |
[INFO] [stderr] 372 |     pub fn read_from(reader: &mut Read) -> Result<Tag> {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tag.rs:394:45
[INFO] [stderr]     |
[INFO] [stderr] 394 |     pub fn write_to(&mut self, writer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:51:32
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/block.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/tag.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/block.rs:97:22
[INFO] [stderr]    |
[INFO] [stderr] 97 |         let header = try!(reader.read_u32::<BigEndian>());
[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/block.rs:116:62
[INFO] [stderr]     |
[INFO] [stderr] 116 |             BlockType::VorbisComment => Block::VorbisComment(try!(VorbisComment::from_bytes(&data[..]))),
[INFO] [stderr]     |                                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:117:50
[INFO] [stderr]     |
[INFO] [stderr] 117 |             BlockType::Picture => Block::Picture(try!(Picture::from_bytes(&data[..]))),
[INFO] [stderr]     |                                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:118:52
[INFO] [stderr]     |
[INFO] [stderr] 118 |             BlockType::CueSheet => Block::CueSheet(try!(CueSheet::from_bytes(&data[..]))),
[INFO] [stderr]     |                                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         try!(writer.write_all(&::util::u64_to_be_bytes(header as u64, 4)[..]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:172:28
[INFO] [stderr]     |
[INFO] [stderr] 172 |             Some(bytes) => try!(writer.write_all(&bytes[..])),
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:179:25
[INFO] [stderr]     |
[INFO] [stderr] 179 |                         try!(writer.write_all(&zeroes[..remaining]));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:183:25
[INFO] [stderr]     |
[INFO] [stderr] 183 |                         try!(writer.write_all(&zeroes[..]));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:425:32
[INFO] [stderr]     |
[INFO] [stderr] 425 |         cuesheet.catalog_num = try!(String::from_utf8(bytes[i..i + 128].to_vec()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:450:26
[INFO] [stderr]     |
[INFO] [stderr] 450 |             track.isrc = try!(String::from_utf8(bytes[i..i + 12].to_vec()));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:655:29
[INFO] [stderr]     |
[INFO] [stderr] 655 |         picture.mime_type = try!(String::from_utf8(bytes[i..i + mime_length].to_vec()));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:661:31
[INFO] [stderr]     |
[INFO] [stderr] 661 |         picture.description = try!(String::from_utf8(bytes[i..i + description_length].to_vec()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:828:32
[INFO] [stderr]     |
[INFO] [stderr] 828 |         vorbis.vendor_string = try!(String::from_utf8(bytes[i..i + vendor_length].to_vec()));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/block.rs:838:28
[INFO] [stderr]     |
[INFO] [stderr] 838 |             let comments = try!(String::from_utf8(bytes[i..i + comment_length].to_vec()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:376:9
[INFO] [stderr]     |
[INFO] [stderr] 376 |         try!(reader.read(&mut ident));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:382:44
[INFO] [stderr]     |
[INFO] [stderr] 382 |             let (is_last, length, block) = try!(Block::read_from(reader));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:395:9
[INFO] [stderr]     |
[INFO] [stderr] 395 |         try!(writer.write(b"fLaC"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:401:28
[INFO] [stderr]     |
[INFO] [stderr] 401 |             self.length += try!(block.write_to(i == nblocks - 1, writer));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:419:27
[INFO] [stderr]     |
[INFO] [stderr] 419 |             new_length += try!(block.write_to(false, &mut writer));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:426:28
[INFO] [stderr]     |
[INFO] [stderr] 426 |             let mut file = try!(OpenOptions::new().write(true).open(self.path.as_ref().unwrap()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:427:13
[INFO] [stderr]     |
[INFO] [stderr] 427 |             try!(file.seek(SeekFrom::Start(4)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:430:17
[INFO] [stderr]     |
[INFO] [stderr] 430 |                 try!(file.write(&bytes[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:435:13
[INFO] [stderr]     |
[INFO] [stderr] 435 |             try!(padding.write_to(true, &mut file));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:447:28
[INFO] [stderr]     |
[INFO] [stderr] 447 |             let mut file = try!(OpenOptions::new().write(true).truncate(true).create(true).open(&path));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:449:13
[INFO] [stderr]     |
[INFO] [stderr] 449 |             try!(file.write(b"fLaC"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:452:17
[INFO] [stderr]     |
[INFO] [stderr] 452 |                 try!(file.write(&bytes[..]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:458:27
[INFO] [stderr]     |
[INFO] [stderr] 458 |             new_length += try!(padding.write_to(true, &mut file));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:462:31
[INFO] [stderr]     |
[INFO] [stderr] 462 |                 Some(data) => try!(file.write_all(&data[..])),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:474:24
[INFO] [stderr]     |
[INFO] [stderr] 474 |         let mut file = try!(File::open(&path));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/tag.rs:475:23
[INFO] [stderr]     |
[INFO] [stderr] 475 |         let mut tag = try!(Tag::read_from(&mut file));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/block.rs:96:35
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn read_from(reader: &mut Read) -> Result<(bool, u32, Block)> {
[INFO] [stderr]    |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/block.rs:128:56
[INFO] [stderr]     |
[INFO] [stderr] 128 |     pub fn write_to(&self, is_last: bool, writer: &mut Write) -> Result<u32> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tag.rs:372:35
[INFO] [stderr]     |
[INFO] [stderr] 372 |     pub fn read_from(reader: &mut Read) -> Result<Tag> {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tag.rs:394:45
[INFO] [stderr]     |
[INFO] [stderr] 394 |     pub fn write_to(&mut self, writer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:51:32
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]   --> src/block.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/tag.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |         if self.cause().is_some() {
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 |             self.cause().unwrap().description()
[INFO] [stderr]    |                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> src/block.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/tag.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |         if self.cause().is_some() {
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:41:18
[INFO] [stderr]    |
[INFO] [stderr] 41 |             self.cause().unwrap().description()
[INFO] [stderr]    |                  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> src/block.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/tag.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `"docker" "inspect" "f846aca847ac05e3317ae884fba54b87b40c74895bcb24cf670801c938c93438"`
[INFO] running `"docker" "rm" "-f" "f846aca847ac05e3317ae884fba54b87b40c74895bcb24cf670801c938c93438"`
[INFO] [stdout] f846aca847ac05e3317ae884fba54b87b40c74895bcb24cf670801c938c93438