[INFO] crate rust_erl_ext 0.2.1 is already in cache
[INFO] checking rust_erl_ext-0.2.1 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate rust_erl_ext 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rust_erl_ext 0.2.1 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust_erl_ext 0.2.1
[INFO] finished tweaking crates.io crate rust_erl_ext 0.2.1
[INFO] tweaked toml for crates.io crate rust_erl_ext 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: path `/workspace/builds/worker-0/source/src/erl_ext.rs` was erroneously implicitly accepted for library `erl_ext`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 391c75e188e70fe031718574cbb1ad9f0aec7a354b8b80b2bcfbae69d0d4737f
[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" "391c75e188e70fe031718574cbb1ad9f0aec7a354b8b80b2bcfbae69d0d4737f"`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/erl_ext.rs` was erroneously implicitly accepted for library `erl_ext`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]     Checking rust_erl_ext v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Error` in `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:185:24
[INFO] [stderr]     |
[INFO] [stderr] 185 |             byteorder::Error::Io(ioe) => Error::Io(ioe),
[INFO] [stderr]     |                        ^^^^^ could not find `Error` in `byteorder`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Error` in `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:186:24
[INFO] [stderr]     |
[INFO] [stderr] 186 |             byteorder::Error::UnexpectedEOF => Error::ByteorderUnexpectedEOF
[INFO] [stderr]     |                        ^^^^^ could not find `Error` in `byteorder`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Error` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:182:22
[INFO] [stderr]     |
[INFO] [stderr] 182 | impl From<byteorder::Error> for Error {
[INFO] [stderr]     |                      ^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::error::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Error;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Error` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:183:30
[INFO] [stderr]     |
[INFO] [stderr] 183 |     fn from (err: byteorder::Error) -> Error {
[INFO] [stderr]     |                              ^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::error::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Error;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:324:59
[INFO] [stderr]     |
[INFO] [stderr] 324 |     fn _decode_small_tuple_arity(&mut self) -> byteorder::Result<u8> {
[INFO] [stderr]     |                                                           ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:337:59
[INFO] [stderr]     |
[INFO] [stderr] 337 |     fn _decode_large_tuple_arity(&mut self) -> byteorder::Result<u32> {
[INFO] [stderr]     |                                                           ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:350:51
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn _decode_map_arity(&mut self) -> byteorder::Result<u32> {
[INFO] [stderr]     |                                                   ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:371:50
[INFO] [stderr]     |
[INFO] [stderr] 371 |     fn _decode_list_len(&mut self) -> byteorder::Result<u32> {
[INFO] [stderr]     |                                                  ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:245:19
[INFO] [stderr]     |
[INFO] [stderr] 245 |         Ok(131 == try!(self.rdr.read_u8()))
[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/erl_ext.rs:248:32
[INFO] [stderr]     |
[INFO] [stderr] 248 |         Ok(Eterm::SmallInteger(try!(self.rdr.read_u8())))
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:251:27
[INFO] [stderr]     |
[INFO] [stderr] 251 |         Ok(Eterm::Integer(try!(self.rdr.read_i32::<BigEndian>())))
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:255:9
[INFO] [stderr]     |
[INFO] [stderr] 255 |         try!(io::copy(&mut self.rdr.take(len), &mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         try!(self.rdr.take(len as u64).read_to_string(&mut str_buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:264:25
[INFO] [stderr]     |
[INFO] [stderr] 264 |         let float_str = try!(self._read_str(31));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:265:19
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let num = try!(float_str.parse::<f32>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:269:15
[INFO] [stderr]     |
[INFO] [stderr] 269 |         match try!(self._decode_tag()) {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:277:19
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let len = try!(self.rdr.read_u16::<BigEndian>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:278:24
[INFO] [stderr]     |
[INFO] [stderr] 278 |         let atom_str = try!(self._read_str(len as usize));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:283:26
[INFO] [stderr]     |
[INFO] [stderr] 283 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:287:18
[INFO] [stderr]     |
[INFO] [stderr] 287 |         let id = try!(self._read_exact(4));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:288:24
[INFO] [stderr]     |
[INFO] [stderr] 288 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:296:26
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:300:18
[INFO] [stderr]     |
[INFO] [stderr] 300 |         let id = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:301:24
[INFO] [stderr]     |
[INFO] [stderr] 301 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:309:26
[INFO] [stderr]     |
[INFO] [stderr] 309 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:313:18
[INFO] [stderr]     |
[INFO] [stderr] 313 |         let id = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:314:22
[INFO] [stderr]     |
[INFO] [stderr] 314 |         let serial = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:315:24
[INFO] [stderr]     |
[INFO] [stderr] 315 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:328:21
[INFO] [stderr]     |
[INFO] [stderr] 328 |         let arity = try!(self._decode_small_tuple_arity());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:331:24
[INFO] [stderr]     |
[INFO] [stderr] 331 |             let term = try!(self.decode_term());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:341:21
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let arity = try!(self._decode_large_tuple_arity());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:344:24
[INFO] [stderr]     |
[INFO] [stderr] 344 |             let term = try!(self.decode_term());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:354:26
[INFO] [stderr]     |
[INFO] [stderr] 354 |         let arity: u32 = try!(self._decode_map_arity());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:357:23
[INFO] [stderr]     |
[INFO] [stderr] 357 |             let key = try!(self.decode_term());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:358:23
[INFO] [stderr]     |
[INFO] [stderr] 358 |             let val = try!(self.decode_term());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:367:19
[INFO] [stderr]     |
[INFO] [stderr] 367 |         let len = try!(self.rdr.read_u16::<BigEndian>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:368:26
[INFO] [stderr]     |
[INFO] [stderr] 368 |         Ok(Eterm::String(try!(self._read_exact(len as u64))))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:376:19
[INFO] [stderr]     |
[INFO] [stderr] 376 |         let len = try!(self._decode_list_len()) + 1;
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:379:24
[INFO] [stderr]     |
[INFO] [stderr] 379 |             let term = try!(self.decode_term());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:385:19
[INFO] [stderr]     |
[INFO] [stderr] 385 |         let len = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:386:26
[INFO] [stderr]     |
[INFO] [stderr] 386 |         Ok(Eterm::Binary(try!(self._read_exact(len as u64))))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:389:24
[INFO] [stderr]     |
[INFO] [stderr] 389 |         let sign_int = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:395:21
[INFO] [stderr]     |
[INFO] [stderr] 395 |         let bytes = try!(self._read_exact(n as u64));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:399:17
[INFO] [stderr]     |
[INFO] [stderr] 399 |         let n = try!(self.rdr.read_u8());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:403:17
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let n = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:407:19
[INFO] [stderr]     |
[INFO] [stderr] 407 |         let len = try!(self.rdr.read_u16::<BigEndian>()) as u64;
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:408:26
[INFO] [stderr]     |
[INFO] [stderr] 408 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:412:24
[INFO] [stderr]     |
[INFO] [stderr] 412 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:413:18
[INFO] [stderr]     |
[INFO] [stderr] 413 |         let id = try!(self._read_exact(4 * len));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:421:19
[INFO] [stderr]     |
[INFO] [stderr] 421 |         let len = try!(self.rdr.read_u8());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:422:24
[INFO] [stderr]     |
[INFO] [stderr] 422 |         let atom_str = try!(self._read_str(len as usize));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:427:24
[INFO] [stderr]     |
[INFO] [stderr] 427 |         let num_free = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 428 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 428 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:432:28
[INFO] [stderr]     |
[INFO] [stderr] 432 |         let module = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 436 |         let index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                           -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 436 |         let index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                           -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 441 |         let uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                          -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 441 |         let uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                          -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:448:28
[INFO] [stderr]     |
[INFO] [stderr] 448 |             free_vars.push(try!(self.decode_term()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:459:21
[INFO] [stderr]     |
[INFO] [stderr] 459 |         let _size = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:460:21
[INFO] [stderr]     |
[INFO] [stderr] 460 |         let arity = try!(self.rdr.read_u8());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:461:20
[INFO] [stderr]     |
[INFO] [stderr] 461 |         let uniq = try!(self._read_exact(16));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:462:21
[INFO] [stderr]     |
[INFO] [stderr] 462 |         let index = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:463:24
[INFO] [stderr]     |
[INFO] [stderr] 463 |         let num_free = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:465:28
[INFO] [stderr]     |
[INFO] [stderr] 465 |         let module = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 469 |         let old_index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                               -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 469 |         let old_index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                               -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         let old_uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                              -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         let old_uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                              -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 479 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 479 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:485:28
[INFO] [stderr]     |
[INFO] [stderr] 485 |             free_vars.push(try!(self.decode_term()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:499:28
[INFO] [stderr]     |
[INFO] [stderr] 499 |         let module = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:503:30
[INFO] [stderr]     |
[INFO] [stderr] 503 |         let function = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 507 |         let arity = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT) {
[INFO] [stderr]     |                           ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 507 |         let arity = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT) {
[INFO] [stderr]     |                           ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:518:19
[INFO] [stderr]     |
[INFO] [stderr] 518 |         let len = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:519:20
[INFO] [stderr]     |
[INFO] [stderr] 519 |         let bits = try!(self.rdr.read_u8());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:522:19
[INFO] [stderr]     |
[INFO] [stderr] 522 |             data: try!(self._read_exact(len as u64)),
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:526:25
[INFO] [stderr]     |
[INFO] [stderr] 526 |         Ok(Eterm::Float(try!(self.rdr.read_f64::<BigEndian>())))
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:531:23
[INFO] [stderr]     |
[INFO] [stderr] 531 |         let int_tag = try!(self.rdr.read_u8());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:540:19
[INFO] [stderr]     |
[INFO] [stderr] 540 |         let tag = try!(self._decode_tag());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         try!(self.wrtr.write_u16::<BigEndian>(atom.len() as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:619:9
[INFO] [stderr]     |
[INFO] [stderr] 619 |         try!(self.wrtr.write_u8(atom.len() as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |         try!(self.wrtr.write_u16::<BigEndian>(len as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:625:9
[INFO] [stderr]     |
[INFO] [stderr] 625 |         try!(self.encode_term(Eterm::Atom(node)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:626:9
[INFO] [stderr]     |
[INFO] [stderr] 626 |         try!(self.wrtr.write_u8(creation));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:630:9
[INFO] [stderr]     |
[INFO] [stderr] 630 |         try!(self.encode_term(Eterm::Atom(node)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:631:9
[INFO] [stderr]     |
[INFO] [stderr] 631 |         try!(self.wrtr.write_u32::<BigEndian>(id));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:635:9
[INFO] [stderr]     |
[INFO] [stderr] 635 |         try!(self.encode_term(Eterm::Atom(node)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:636:9
[INFO] [stderr]     |
[INFO] [stderr] 636 |         try!(self.wrtr.write_u32::<BigEndian>(id));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:637:9
[INFO] [stderr]     |
[INFO] [stderr] 637 |         try!(self.wrtr.write_u32::<BigEndian>(serial));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:642:9
[INFO] [stderr]     |
[INFO] [stderr] 642 |         try!(self.wrtr.write_u8(tuple.len() as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:644:13
[INFO] [stderr]     |
[INFO] [stderr] 644 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:649:9
[INFO] [stderr]     |
[INFO] [stderr] 649 |         try!(self.wrtr.write_u32::<BigEndian>(tuple.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:651:13
[INFO] [stderr]     |
[INFO] [stderr] 651 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         try!(self.wrtr.write_u32::<BigEndian>(map.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:658:13
[INFO] [stderr]     |
[INFO] [stderr] 658 |             try!(self.encode_term(key));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:659:13
[INFO] [stderr]     |
[INFO] [stderr] 659 |             try!(self.encode_term(val));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:664:9
[INFO] [stderr]     |
[INFO] [stderr] 664 |         try!(self.wrtr.write_u16::<BigEndian>(s.len() as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:668:9
[INFO] [stderr]     |
[INFO] [stderr] 668 |         try!(self.wrtr.write_u32::<BigEndian>((list.len() - 1) as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:670:13
[INFO] [stderr]     |
[INFO] [stderr] 670 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:676:9
[INFO] [stderr]     |
[INFO] [stderr] 676 |         try!(self.wrtr.write_u32::<BigEndian>(bin.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:681:9
[INFO] [stderr]     |
[INFO] [stderr] 681 |         try!(self.wrtr.write_u8(match sign {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:689:9
[INFO] [stderr]     |
[INFO] [stderr] 689 |         try!(self.wrtr.write_u8(bytes.len() as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:693:9
[INFO] [stderr]     |
[INFO] [stderr] 693 |         try!(self.wrtr.write_u32::<BigEndian>(bytes.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:698:9
[INFO] [stderr]     |
[INFO] [stderr] 698 |         try!(self.wrtr.write_u32::<BigEndian>(free_vars.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:699:9
[INFO] [stderr]     |
[INFO] [stderr] 699 |         try!(self.encode_term(Eterm::Pid(pid)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:700:9
[INFO] [stderr]     |
[INFO] [stderr] 700 |         try!(self.encode_term(Eterm::Atom(module)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:701:9
[INFO] [stderr]     |
[INFO] [stderr] 701 |         try!(self.encode_term(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:704:9
[INFO] [stderr]     |
[INFO] [stderr] 704 |         try!(self.encode_term(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:708:13
[INFO] [stderr]     |
[INFO] [stderr] 708 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:713:9
[INFO] [stderr]     |
[INFO] [stderr] 713 |         try!(self.wrtr.write_u8(arity));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:715:9
[INFO] [stderr]     |
[INFO] [stderr] 715 |         try!(self.wrtr.write_all(uniq.as_ref()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:716:9
[INFO] [stderr]     |
[INFO] [stderr] 716 |         try!(self.wrtr.write_u32::<BigEndian>(index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:717:9
[INFO] [stderr]     |
[INFO] [stderr] 717 |         try!(self.wrtr.write_u32::<BigEndian>(free_vars.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:718:9
[INFO] [stderr]     |
[INFO] [stderr] 718 |         try!(self.encode_term(Eterm::Atom(module)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:725:9
[INFO] [stderr]     |
[INFO] [stderr] 725 |         try!(self.encode_term(old_index_term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:732:9
[INFO] [stderr]     |
[INFO] [stderr] 732 |         try!(self.encode_term(old_uniq_term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:734:9
[INFO] [stderr]     |
[INFO] [stderr] 734 |         try!(self.encode_term(Eterm::Pid(pid)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:737:13
[INFO] [stderr]     |
[INFO] [stderr] 737 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:752:17
[INFO] [stderr]     |
[INFO] [stderr] 752 |                 try!(encoder._encode_new_fun(arity, uniq, index, module, old_index, old_uniq, pid, free_vars));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:756:13
[INFO] [stderr]     |
[INFO] [stderr] 756 |             try!(self.wrtr.write_u32::<BigEndian>(4 + size as u32));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:760:13
[INFO] [stderr]     |
[INFO] [stderr] 760 |             try!(self.wrtr.write_u32::<BigEndian>(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:765:9
[INFO] [stderr]     |
[INFO] [stderr] 765 |         try!(self.encode_term(Eterm::Atom(module)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:766:9
[INFO] [stderr]     |
[INFO] [stderr] 766 |         try!(self.encode_term(Eterm::Atom(function)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:770:9
[INFO] [stderr]     |
[INFO] [stderr] 770 |         try!(self.wrtr.write_u32::<BigEndian>(data.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:771:9
[INFO] [stderr]     |
[INFO] [stderr] 771 |         try!(self.wrtr.write_u8(bits));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:783:17
[INFO] [stderr]     |
[INFO] [stderr] 783 |                 try!(self._encode_tag(ErlTermTag::SMALL_INTEGER_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:787:17
[INFO] [stderr]     |
[INFO] [stderr] 787 |                 try!(self._encode_tag(ErlTermTag::INTEGER_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:791:17
[INFO] [stderr]     |
[INFO] [stderr] 791 |                 try!(self._encode_tag(ErlTermTag::NEW_FLOAT_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:798:21
[INFO] [stderr]     |
[INFO] [stderr] 798 |                     try!(self._encode_tag(if use_utf8 {ErlTermTag::SMALL_ATOM_UTF8_EXT} else {ErlTermTag::SMALL_ATOM_EXT}));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:801:21
[INFO] [stderr]     |
[INFO] [stderr] 801 |                     try!(self._encode_tag(if use_utf8 {ErlTermTag::ATOM_UTF8_EXT} else {ErlTermTag::ATOM_EXT}));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:806:17
[INFO] [stderr]     |
[INFO] [stderr] 806 |                 try!(self._encode_tag(ErlTermTag::NEW_REFERENCE_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:810:17
[INFO] [stderr]     |
[INFO] [stderr] 810 |                 try!(self._encode_tag(ErlTermTag::PORT_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:814:17
[INFO] [stderr]     |
[INFO] [stderr] 814 |                 try!(self._encode_tag(ErlTermTag::PID_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:819:21
[INFO] [stderr]     |
[INFO] [stderr] 819 |                     try!(self._encode_tag(ErlTermTag::SMALL_TUPLE_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:822:21
[INFO] [stderr]     |
[INFO] [stderr] 822 |                     try!(self._encode_tag(ErlTermTag::LARGE_TUPLE_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:827:17
[INFO] [stderr]     |
[INFO] [stderr] 827 |                 try!(self._encode_tag(ErlTermTag::MAP_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:833:17
[INFO] [stderr]     |
[INFO] [stderr] 833 |                 try!(self._encode_tag(ErlTermTag::STRING_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:837:17
[INFO] [stderr]     |
[INFO] [stderr] 837 |                 try!(self._encode_tag(ErlTermTag::LIST_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:841:17
[INFO] [stderr]     |
[INFO] [stderr] 841 |                 try!(self._encode_tag(ErlTermTag::BINARY_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:847:21
[INFO] [stderr]     |
[INFO] [stderr] 847 |                     try!(self._encode_tag(ErlTermTag::SMALL_BIG_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:850:21
[INFO] [stderr]     |
[INFO] [stderr] 850 |                     try!(self._encode_tag(ErlTermTag::LARGE_BIG_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:855:17
[INFO] [stderr]     |
[INFO] [stderr] 855 |                 try!(self._encode_tag(ErlTermTag::FUN_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:859:17
[INFO] [stderr]     |
[INFO] [stderr] 859 |                 try!(self._encode_tag(ErlTermTag::NEW_FUN_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:863:17
[INFO] [stderr]     |
[INFO] [stderr] 863 |                 try!(self._encode_tag(ErlTermTag::EXPORT_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:867:17
[INFO] [stderr]     |
[INFO] [stderr] 867 |                 try!(self._encode_tag(ErlTermTag::BIT_BINARY_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/erl_ext.rs:200:32
[INFO] [stderr]     |
[INFO] [stderr] 200 |     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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/erl_ext.rs:575:20
[INFO] [stderr]     |
[INFO] [stderr] 575 |     wrtr: &'a mut (io::Write + 'a),
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/erl_ext.rs:586:32
[INFO] [stderr]     |
[INFO] [stderr] 586 |     pub fn new(writer: &'a mut io::Write, utf8_atoms: bool, small_atoms: bool, fair_new_fun: bool) -> Encoder<'a> {
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/erl_ext.rs:197:35
[INFO] [stderr]     |
[INFO] [stderr] 197 |             Error::Io(ref err) => error::Error::description(err),
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Error` in `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:185:24
[INFO] [stderr]     |
[INFO] [stderr] 185 |             byteorder::Error::Io(ioe) => Error::Io(ioe),
[INFO] [stderr]     |                        ^^^^^ could not find `Error` in `byteorder`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Error` in `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:186:24
[INFO] [stderr]     |
[INFO] [stderr] 186 |             byteorder::Error::UnexpectedEOF => Error::ByteorderUnexpectedEOF
[INFO] [stderr]     |                        ^^^^^ could not find `Error` in `byteorder`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Error` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:182:22
[INFO] [stderr]     |
[INFO] [stderr] 182 | impl From<byteorder::Error> for Error {
[INFO] [stderr]     |                      ^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::error::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Error;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Error` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:183:30
[INFO] [stderr]     |
[INFO] [stderr] 183 |     fn from (err: byteorder::Error) -> Error {
[INFO] [stderr]     |                              ^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::error::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Error;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Error;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:324:59
[INFO] [stderr]     |
[INFO] [stderr] 324 |     fn _decode_small_tuple_arity(&mut self) -> byteorder::Result<u8> {
[INFO] [stderr]     |                                                           ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:337:59
[INFO] [stderr]     |
[INFO] [stderr] 337 |     fn _decode_large_tuple_arity(&mut self) -> byteorder::Result<u32> {
[INFO] [stderr]     |                                                           ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:350:51
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn _decode_map_arity(&mut self) -> byteorder::Result<u32> {
[INFO] [stderr]     |                                                   ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Result` in crate `byteorder`
[INFO] [stderr]    --> src/erl_ext.rs:371:50
[INFO] [stderr]     |
[INFO] [stderr] 371 |     fn _decode_list_len(&mut self) -> byteorder::Result<u32> {
[INFO] [stderr]     |                                                  ^^^^^^ not found in `byteorder`
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::fmt::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::io::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::prelude::v1::Result;
[INFO] [stderr]     |
[INFO] [stderr] 10  | use std::result::Result;
[INFO] [stderr]     |
[INFO] [stderr]       and 1 other candidate
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:245:19
[INFO] [stderr]     |
[INFO] [stderr] 245 |         Ok(131 == try!(self.rdr.read_u8()))
[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/erl_ext.rs:248:32
[INFO] [stderr]     |
[INFO] [stderr] 248 |         Ok(Eterm::SmallInteger(try!(self.rdr.read_u8())))
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:251:27
[INFO] [stderr]     |
[INFO] [stderr] 251 |         Ok(Eterm::Integer(try!(self.rdr.read_i32::<BigEndian>())))
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:255:9
[INFO] [stderr]     |
[INFO] [stderr] 255 |         try!(io::copy(&mut self.rdr.take(len), &mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         try!(self.rdr.take(len as u64).read_to_string(&mut str_buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:264:25
[INFO] [stderr]     |
[INFO] [stderr] 264 |         let float_str = try!(self._read_str(31));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:265:19
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let num = try!(float_str.parse::<f32>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:269:15
[INFO] [stderr]     |
[INFO] [stderr] 269 |         match try!(self._decode_tag()) {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:277:19
[INFO] [stderr]     |
[INFO] [stderr] 277 |         let len = try!(self.rdr.read_u16::<BigEndian>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:278:24
[INFO] [stderr]     |
[INFO] [stderr] 278 |         let atom_str = try!(self._read_str(len as usize));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:283:26
[INFO] [stderr]     |
[INFO] [stderr] 283 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:287:18
[INFO] [stderr]     |
[INFO] [stderr] 287 |         let id = try!(self._read_exact(4));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:288:24
[INFO] [stderr]     |
[INFO] [stderr] 288 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:296:26
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:300:18
[INFO] [stderr]     |
[INFO] [stderr] 300 |         let id = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:301:24
[INFO] [stderr]     |
[INFO] [stderr] 301 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:309:26
[INFO] [stderr]     |
[INFO] [stderr] 309 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:313:18
[INFO] [stderr]     |
[INFO] [stderr] 313 |         let id = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:314:22
[INFO] [stderr]     |
[INFO] [stderr] 314 |         let serial = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:315:24
[INFO] [stderr]     |
[INFO] [stderr] 315 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:328:21
[INFO] [stderr]     |
[INFO] [stderr] 328 |         let arity = try!(self._decode_small_tuple_arity());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:331:24
[INFO] [stderr]     |
[INFO] [stderr] 331 |             let term = try!(self.decode_term());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:341:21
[INFO] [stderr]     |
[INFO] [stderr] 341 |         let arity = try!(self._decode_large_tuple_arity());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:344:24
[INFO] [stderr]     |
[INFO] [stderr] 344 |             let term = try!(self.decode_term());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:354:26
[INFO] [stderr]     |
[INFO] [stderr] 354 |         let arity: u32 = try!(self._decode_map_arity());
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:357:23
[INFO] [stderr]     |
[INFO] [stderr] 357 |             let key = try!(self.decode_term());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:358:23
[INFO] [stderr]     |
[INFO] [stderr] 358 |             let val = try!(self.decode_term());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:367:19
[INFO] [stderr]     |
[INFO] [stderr] 367 |         let len = try!(self.rdr.read_u16::<BigEndian>());
[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/erl_ext.rs:202:39
[INFO] [stderr]     |
[INFO] [stderr] 202 |             Error::Io(ref err) => err.cause(),
[INFO] [stderr]     |                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:368:26
[INFO] [stderr]     |
[INFO] [stderr] 368 |         Ok(Eterm::String(try!(self._read_exact(len as u64))))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:376:19
[INFO] [stderr]     |
[INFO] [stderr] 376 |         let len = try!(self._decode_list_len()) + 1;
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:379:24
[INFO] [stderr]     |
[INFO] [stderr] 379 |             let term = try!(self.decode_term());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:385:19
[INFO] [stderr]     |
[INFO] [stderr] 385 |         let len = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:386:26
[INFO] [stderr]     |
[INFO] [stderr] 386 |         Ok(Eterm::Binary(try!(self._read_exact(len as u64))))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:389:24
[INFO] [stderr]     |
[INFO] [stderr] 389 |         let sign_int = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:395:21
[INFO] [stderr]     |
[INFO] [stderr] 395 |         let bytes = try!(self._read_exact(n as u64));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:399:17
[INFO] [stderr]     |
[INFO] [stderr] 399 |         let n = try!(self.rdr.read_u8());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:403:17
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let n = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:407:19
[INFO] [stderr]     |
[INFO] [stderr] 407 |         let len = try!(self.rdr.read_u16::<BigEndian>()) as u64;
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:408:26
[INFO] [stderr]     |
[INFO] [stderr] 408 |         let node = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:412:24
[INFO] [stderr]     |
[INFO] [stderr] 412 |         let creation = try!(self.rdr.read_u8());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:413:18
[INFO] [stderr]     |
[INFO] [stderr] 413 |         let id = try!(self._read_exact(4 * len));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:421:19
[INFO] [stderr]     |
[INFO] [stderr] 421 |         let len = try!(self.rdr.read_u8());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:422:24
[INFO] [stderr]     |
[INFO] [stderr] 422 |         let atom_str = try!(self._read_str(len as usize));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:427:24
[INFO] [stderr]     |
[INFO] [stderr] 427 |         let num_free = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 428 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 428 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:432:28
[INFO] [stderr]     |
[INFO] [stderr] 432 |         let module = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 436 |         let index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                           -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 436 |         let index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                           -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 441 |         let uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                          -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 441 |         let uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                          -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:448:28
[INFO] [stderr]     |
[INFO] [stderr] 448 |             free_vars.push(try!(self.decode_term()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:459:21
[INFO] [stderr]     |
[INFO] [stderr] 459 |         let _size = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:460:21
[INFO] [stderr]     |
[INFO] [stderr] 460 |         let arity = try!(self.rdr.read_u8());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:461:20
[INFO] [stderr]     |
[INFO] [stderr] 461 |         let uniq = try!(self._read_exact(16));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:462:21
[INFO] [stderr]     |
[INFO] [stderr] 462 |         let index = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:463:24
[INFO] [stderr]     |
[INFO] [stderr] 463 |         let num_free = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:465:28
[INFO] [stderr]     |
[INFO] [stderr] 465 |         let module = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 469 |         let old_index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                               -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 469 |         let old_index = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                               -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         let old_uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                              -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 474 |         let old_uniq = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT, ErlTermTag::INTEGER_EXT) {
[INFO] [stderr]     |                              -------------------------------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 479 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 479 |         let pid = match decode_some!(self, ErlTermTag::PID_EXT) {
[INFO] [stderr]     |                         --------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:485:28
[INFO] [stderr]     |
[INFO] [stderr] 485 |             free_vars.push(try!(self.decode_term()));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:499:28
[INFO] [stderr]     |
[INFO] [stderr] 499 |         let module = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:503:30
[INFO] [stderr]     |
[INFO] [stderr] 503 |         let function = match try!(self._decode_any_atom()) {
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:228:19
[INFO] [stderr]     |
[INFO] [stderr] 228 |             match try!($e._decode_tag()) {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 507 |         let arity = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT) {
[INFO] [stderr]     |                           ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                         try!($e.decode_concrete_term($t)),
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 507 |         let arity = match decode_some!(self, ErlTermTag::SMALL_INTEGER_EXT) {
[INFO] [stderr]     |                           ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:518:19
[INFO] [stderr]     |
[INFO] [stderr] 518 |         let len = try!(self.rdr.read_u32::<BigEndian>());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:519:20
[INFO] [stderr]     |
[INFO] [stderr] 519 |         let bits = try!(self.rdr.read_u8());
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:522:19
[INFO] [stderr]     |
[INFO] [stderr] 522 |             data: try!(self._read_exact(len as u64)),
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:526:25
[INFO] [stderr]     |
[INFO] [stderr] 526 |         Ok(Eterm::Float(try!(self.rdr.read_f64::<BigEndian>())))
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:531:23
[INFO] [stderr]     |
[INFO] [stderr] 531 |         let int_tag = try!(self.rdr.read_u8());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:540:19
[INFO] [stderr]     |
[INFO] [stderr] 540 |         let tag = try!(self._decode_tag());
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:615:9
[INFO] [stderr]     |
[INFO] [stderr] 615 |         try!(self.wrtr.write_u16::<BigEndian>(atom.len() as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:619:9
[INFO] [stderr]     |
[INFO] [stderr] 619 |         try!(self.wrtr.write_u8(atom.len() as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:624:9
[INFO] [stderr]     |
[INFO] [stderr] 624 |         try!(self.wrtr.write_u16::<BigEndian>(len as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:625:9
[INFO] [stderr]     |
[INFO] [stderr] 625 |         try!(self.encode_term(Eterm::Atom(node)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:626:9
[INFO] [stderr]     |
[INFO] [stderr] 626 |         try!(self.wrtr.write_u8(creation));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:630:9
[INFO] [stderr]     |
[INFO] [stderr] 630 |         try!(self.encode_term(Eterm::Atom(node)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:631:9
[INFO] [stderr]     |
[INFO] [stderr] 631 |         try!(self.wrtr.write_u32::<BigEndian>(id));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:635:9
[INFO] [stderr]     |
[INFO] [stderr] 635 |         try!(self.encode_term(Eterm::Atom(node)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:636:9
[INFO] [stderr]     |
[INFO] [stderr] 636 |         try!(self.wrtr.write_u32::<BigEndian>(id));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:637:9
[INFO] [stderr]     |
[INFO] [stderr] 637 |         try!(self.wrtr.write_u32::<BigEndian>(serial));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:642:9
[INFO] [stderr]     |
[INFO] [stderr] 642 |         try!(self.wrtr.write_u8(tuple.len() as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:644:13
[INFO] [stderr]     |
[INFO] [stderr] 644 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:649:9
[INFO] [stderr]     |
[INFO] [stderr] 649 |         try!(self.wrtr.write_u32::<BigEndian>(tuple.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:651:13
[INFO] [stderr]     |
[INFO] [stderr] 651 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:656:9
[INFO] [stderr]     |
[INFO] [stderr] 656 |         try!(self.wrtr.write_u32::<BigEndian>(map.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:658:13
[INFO] [stderr]     |
[INFO] [stderr] 658 |             try!(self.encode_term(key));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:659:13
[INFO] [stderr]     |
[INFO] [stderr] 659 |             try!(self.encode_term(val));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:664:9
[INFO] [stderr]     |
[INFO] [stderr] 664 |         try!(self.wrtr.write_u16::<BigEndian>(s.len() as u16));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:668:9
[INFO] [stderr]     |
[INFO] [stderr] 668 |         try!(self.wrtr.write_u32::<BigEndian>((list.len() - 1) as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:670:13
[INFO] [stderr]     |
[INFO] [stderr] 670 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:676:9
[INFO] [stderr]     |
[INFO] [stderr] 676 |         try!(self.wrtr.write_u32::<BigEndian>(bin.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:681:9
[INFO] [stderr]     |
[INFO] [stderr] 681 |         try!(self.wrtr.write_u8(match sign {
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:689:9
[INFO] [stderr]     |
[INFO] [stderr] 689 |         try!(self.wrtr.write_u8(bytes.len() as u8));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:693:9
[INFO] [stderr]     |
[INFO] [stderr] 693 |         try!(self.wrtr.write_u32::<BigEndian>(bytes.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:698:9
[INFO] [stderr]     |
[INFO] [stderr] 698 |         try!(self.wrtr.write_u32::<BigEndian>(free_vars.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:699:9
[INFO] [stderr]     |
[INFO] [stderr] 699 |         try!(self.encode_term(Eterm::Pid(pid)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:700:9
[INFO] [stderr]     |
[INFO] [stderr] 700 |         try!(self.encode_term(Eterm::Atom(module)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:701:9
[INFO] [stderr]     |
[INFO] [stderr] 701 |         try!(self.encode_term(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:704:9
[INFO] [stderr]     |
[INFO] [stderr] 704 |         try!(self.encode_term(
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:708:13
[INFO] [stderr]     |
[INFO] [stderr] 708 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:713:9
[INFO] [stderr]     |
[INFO] [stderr] 713 |         try!(self.wrtr.write_u8(arity));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:715:9
[INFO] [stderr]     |
[INFO] [stderr] 715 |         try!(self.wrtr.write_all(uniq.as_ref()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:716:9
[INFO] [stderr]     |
[INFO] [stderr] 716 |         try!(self.wrtr.write_u32::<BigEndian>(index));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:717:9
[INFO] [stderr]     |
[INFO] [stderr] 717 |         try!(self.wrtr.write_u32::<BigEndian>(free_vars.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:718:9
[INFO] [stderr]     |
[INFO] [stderr] 718 |         try!(self.encode_term(Eterm::Atom(module)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:725:9
[INFO] [stderr]     |
[INFO] [stderr] 725 |         try!(self.encode_term(old_index_term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:732:9
[INFO] [stderr]     |
[INFO] [stderr] 732 |         try!(self.encode_term(old_uniq_term));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:734:9
[INFO] [stderr]     |
[INFO] [stderr] 734 |         try!(self.encode_term(Eterm::Pid(pid)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:737:13
[INFO] [stderr]     |
[INFO] [stderr] 737 |             try!(self.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:752:17
[INFO] [stderr]     |
[INFO] [stderr] 752 |                 try!(encoder._encode_new_fun(arity, uniq, index, module, old_index, old_uniq, pid, free_vars));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:756:13
[INFO] [stderr]     |
[INFO] [stderr] 756 |             try!(self.wrtr.write_u32::<BigEndian>(4 + size as u32));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:760:13
[INFO] [stderr]     |
[INFO] [stderr] 760 |             try!(self.wrtr.write_u32::<BigEndian>(0));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:765:9
[INFO] [stderr]     |
[INFO] [stderr] 765 |         try!(self.encode_term(Eterm::Atom(module)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:766:9
[INFO] [stderr]     |
[INFO] [stderr] 766 |         try!(self.encode_term(Eterm::Atom(function)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:770:9
[INFO] [stderr]     |
[INFO] [stderr] 770 |         try!(self.wrtr.write_u32::<BigEndian>(data.len() as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:771:9
[INFO] [stderr]     |
[INFO] [stderr] 771 |         try!(self.wrtr.write_u8(bits));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:783:17
[INFO] [stderr]     |
[INFO] [stderr] 783 |                 try!(self._encode_tag(ErlTermTag::SMALL_INTEGER_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:787:17
[INFO] [stderr]     |
[INFO] [stderr] 787 |                 try!(self._encode_tag(ErlTermTag::INTEGER_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:791:17
[INFO] [stderr]     |
[INFO] [stderr] 791 |                 try!(self._encode_tag(ErlTermTag::NEW_FLOAT_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:798:21
[INFO] [stderr]     |
[INFO] [stderr] 798 |                     try!(self._encode_tag(if use_utf8 {ErlTermTag::SMALL_ATOM_UTF8_EXT} else {ErlTermTag::SMALL_ATOM_EXT}));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:801:21
[INFO] [stderr]     |
[INFO] [stderr] 801 |                     try!(self._encode_tag(if use_utf8 {ErlTermTag::ATOM_UTF8_EXT} else {ErlTermTag::ATOM_EXT}));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:806:17
[INFO] [stderr]     |
[INFO] [stderr] 806 |                 try!(self._encode_tag(ErlTermTag::NEW_REFERENCE_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:810:17
[INFO] [stderr]     |
[INFO] [stderr] 810 |                 try!(self._encode_tag(ErlTermTag::PORT_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:814:17
[INFO] [stderr]     |
[INFO] [stderr] 814 |                 try!(self._encode_tag(ErlTermTag::PID_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:819:21
[INFO] [stderr]     |
[INFO] [stderr] 819 |                     try!(self._encode_tag(ErlTermTag::SMALL_TUPLE_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:822:21
[INFO] [stderr]     |
[INFO] [stderr] 822 |                     try!(self._encode_tag(ErlTermTag::LARGE_TUPLE_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:827:17
[INFO] [stderr]     |
[INFO] [stderr] 827 |                 try!(self._encode_tag(ErlTermTag::MAP_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:833:17
[INFO] [stderr]     |
[INFO] [stderr] 833 |                 try!(self._encode_tag(ErlTermTag::STRING_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:837:17
[INFO] [stderr]     |
[INFO] [stderr] 837 |                 try!(self._encode_tag(ErlTermTag::LIST_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:841:17
[INFO] [stderr]     |
[INFO] [stderr] 841 |                 try!(self._encode_tag(ErlTermTag::BINARY_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:847:21
[INFO] [stderr]     |
[INFO] [stderr] 847 |                     try!(self._encode_tag(ErlTermTag::SMALL_BIG_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:850:21
[INFO] [stderr]     |
[INFO] [stderr] 850 |                     try!(self._encode_tag(ErlTermTag::LARGE_BIG_EXT));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:855:17
[INFO] [stderr]     |
[INFO] [stderr] 855 |                 try!(self._encode_tag(ErlTermTag::FUN_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:859:17
[INFO] [stderr]     |
[INFO] [stderr] 859 |                 try!(self._encode_tag(ErlTermTag::NEW_FUN_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:863:17
[INFO] [stderr]     |
[INFO] [stderr] 863 |                 try!(self._encode_tag(ErlTermTag::EXPORT_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:867:17
[INFO] [stderr]     |
[INFO] [stderr] 867 |                 try!(self._encode_tag(ErlTermTag::BIT_BINARY_EXT));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:886:13
[INFO] [stderr]     |
[INFO] [stderr] 886 |             try!(encoder.write_prelude());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:887:13
[INFO] [stderr]     |
[INFO] [stderr] 887 |             try!(encoder.encode_term(term));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/erl_ext.rs:894:25
[INFO] [stderr]     |
[INFO] [stderr] 894 |         assert!(true == try!(decoder.read_prelude()));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/erl_ext.rs:200:32
[INFO] [stderr]     |
[INFO] [stderr] 200 |     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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/erl_ext.rs:575:20
[INFO] [stderr]     |
[INFO] [stderr] 575 |     wrtr: &'a mut (io::Write + 'a),
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/erl_ext.rs:586:32
[INFO] [stderr]     |
[INFO] [stderr] 586 |     pub fn new(writer: &'a mut io::Write, utf8_atoms: bool, small_atoms: bool, fair_new_fun: bool) -> Encoder<'a> {
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/erl_ext.rs:197:35
[INFO] [stderr]     |
[INFO] [stderr] 197 |             Error::Io(ref err) => error::Error::description(err),
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::FromPrimitive`
[INFO] [stderr]   --> src/erl_ext.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use num::FromPrimitive;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `rust_erl_ext`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/erl_ext.rs:202:39
[INFO] [stderr]     |
[INFO] [stderr] 202 |             Error::Io(ref err) => err.cause(),
[INFO] [stderr]     |                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::FromPrimitive`
[INFO] [stderr]   --> src/erl_ext.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use num::FromPrimitive;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `rust_erl_ext`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "391c75e188e70fe031718574cbb1ad9f0aec7a354b8b80b2bcfbae69d0d4737f"`
[INFO] running `"docker" "rm" "-f" "391c75e188e70fe031718574cbb1ad9f0aec7a354b8b80b2bcfbae69d0d4737f"`
[INFO] [stdout] 391c75e188e70fe031718574cbb1ad9f0aec7a354b8b80b2bcfbae69d0d4737f
