[INFO] fetching crate bytekey 0.4.2...
[INFO] building bytekey-0.4.2 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate bytekey 0.4.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate bytekey 0.4.2 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bytekey 0.4.2
[INFO] finished tweaking crates.io crate bytekey 0.4.2
[INFO] tweaked toml for crates.io crate bytekey 0.4.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb9a0971e758fca24ed5c9194df90de580c9314b8d3e2517d6efad6598111f41
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fb9a0971e758fca24ed5c9194df90de580c9314b8d3e2517d6efad6598111f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb9a0971e758fca24ed5c9194df90de580c9314b8d3e2517d6efad6598111f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb9a0971e758fca24ed5c9194df90de580c9314b8d3e2517d6efad6598111f41", kill_on_drop: false }`
[INFO] [stdout] fb9a0971e758fca24ed5c9194df90de580c9314b8d3e2517d6efad6598111f41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 785cd7bb12caffaeb6f886a410c6bbb9a602b905b1c884b58074da2dc9a32874
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "785cd7bb12caffaeb6f886a410c6bbb9a602b905b1c884b58074da2dc9a32874", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling bytekey v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:58:18
[INFO] [stdout]    |
[INFO] [stdout] 58 | #![feature(core, custom_attribute, io, plugin, unicode)]
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::iter::range_inclusive`
[INFO] [stdout]  --> src/decoder.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::range_inclusive;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `range_inclusive` in `iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::num::wrapping`
[INFO] [stdout]  --> src/decoder.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::num::wrapping::OverflowingOps;
[INFO] [stdout]   |               ^^^^^^^^ could not find `wrapping` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `CharsError` in `io`
[INFO] [stdout]    --> src/decoder.rs:120:26
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Some(Err(io::CharsError::NotUtf8)) => Err(Error::NotUtf8),
[INFO] [stdout]     |                          ^^^^^^^^^^ could not find `CharsError` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `CharsError` in `io`
[INFO] [stdout]    --> src/decoder.rs:121:26
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Some(Err(io::CharsError::Other(error))) => Err(Error::Io(error)),
[INFO] [stdout]     |                          ^^^^^^^^^^ could not find `CharsError` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `CharsError` in `io`
[INFO] [stdout]    --> src/lib.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |             io::CharsError::NotUtf8 => Error::NotUtf8,
[INFO] [stdout]     |                 ^^^^^^^^^^ could not find `CharsError` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `CharsError` in `io`
[INFO] [stdout]    --> src/lib.rs:141:17
[INFO] [stdout]     |
[INFO] [stdout] 141 |             io::CharsError::Other(error) => Error::Io(error),
[INFO] [stdout]     |                 ^^^^^^^^^^ could not find `CharsError` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Error` in `byteorder`
[INFO] [stdout]    --> src/lib.rs:149:24
[INFO] [stdout]     |
[INFO] [stdout] 149 |             byteorder::Error::UnexpectedEOF => Error::UnexpectedEof,
[INFO] [stdout]     |                        ^^^^^ could not find `Error` in `byteorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Error` in `byteorder`
[INFO] [stdout]    --> src/lib.rs:150:24
[INFO] [stdout]     |
[INFO] [stdout] 150 |             byteorder::Error::Io(error) => Error::Io(error),
[INFO] [stdout]     |                        ^^^^^ could not find `Error` in `byteorder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]    --> src/lib.rs:137:15
[INFO] [stdout]     |
[INFO] [stdout] 137 | impl From<io::CharsError> for Error {
[INFO] [stdout]     |               ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `CharsError` in module `io`
[INFO] [stdout]    --> src/lib.rs:138:24
[INFO] [stdout]     |
[INFO] [stdout] 138 |     fn from(error: io::CharsError) -> Error {
[INFO] [stdout]     |                        ^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Error` in crate `byteorder`
[INFO] [stdout]    --> src/lib.rs:146:22
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl From<byteorder::Error> for Error {
[INFO] [stdout]     |                      ^^^^^ not found in `byteorder`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 68  | use error::Error;
[INFO] [stdout]     |
[INFO] [stdout] 68  | use fmt::Error;
[INFO] [stdout]     |
[INFO] [stdout] 68  | use io::Error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Error` in crate `byteorder`
[INFO] [stdout]    --> src/lib.rs:147:31
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn from(error: byteorder::Error) -> Error {
[INFO] [stdout]     |                               ^^^^^ not found in `byteorder`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 68  | use error::Error;
[INFO] [stdout]     |
[INFO] [stdout] 68  | use fmt::Error;
[INFO] [stdout]     |
[INFO] [stdout] 68  | use io::Error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:168:13
[INFO] [stdout]     |
[INFO] [stdout] 168 |             try!(self.writer.write_u8(((val >> 16) as u8) | 2 << 4));
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:173:13
[INFO] [stdout]     |
[INFO] [stdout] 173 |             try!(self.writer.write_u8(((val >> 32) as u8) | 4 << 4));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |             try!(self.writer.write_u16::<BigEndian>(((val >> 32) as u16) | 5 << 12));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:179:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |             try!(self.writer.write_u8(((val >> 48) as u8) | 6 << 4));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 180 |             try!(self.writer.write_u16::<BigEndian>((val >> 32) as u16));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |             try!(self.writer.write_u8(8 << 4));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/encoder.rs:169:48
[INFO] [stdout]     |
[INFO] [stdout] 169 |             self.writer.write_u16::<BigEndian>((val as u16))
[INFO] [stdout]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/encoder.rs:174:48
[INFO] [stdout]     |
[INFO] [stdout] 174 |             self.writer.write_u32::<BigEndian>((val as u32))
[INFO] [stdout]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/encoder.rs:177:48
[INFO] [stdout]     |
[INFO] [stdout] 177 |             self.writer.write_u32::<BigEndian>((val as u32))
[INFO] [stdout]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/encoder.rs:181:48
[INFO] [stdout]     |
[INFO] [stdout] 181 |             self.writer.write_u32::<BigEndian>((val as u32))
[INFO] [stdout]     |                                                ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:270:13
[INFO] [stdout]     |
[INFO] [stdout] 270 |             try!(self.writer.write_u8((masked >> 16) as u8));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:277:13
[INFO] [stdout]     |
[INFO] [stdout] 277 |             try!(self.writer.write_u8((masked >> 32) as u8));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:281:13
[INFO] [stdout]     |
[INFO] [stdout] 281 |             try!(self.writer.write_u16::<BigEndian>((masked >> 32) as u16));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:285:13
[INFO] [stdout]     |
[INFO] [stdout] 285 |             try!(self.writer.write_u8((masked >> 48) as u8));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |             try!(self.writer.write_u16::<BigEndian>((masked >> 32) as u16));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:292:13
[INFO] [stdout]     |
[INFO] [stdout] 292 |             try!(self.writer.write_u8((0x18 << 3) ^ mask as u8));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:369:9
[INFO] [stdout]     |
[INFO] [stdout] 369 |         try!(self.writer.write_all(v.as_bytes()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:383:9
[INFO] [stdout]     |
[INFO] [stdout] 383 |         try!(self.emit_usize(id));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:398:9
[INFO] [stdout]     |
[INFO] [stdout] 398 |         try!(self.emit_usize(id));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encoder.rs:451:9
[INFO] [stdout]     |
[INFO] [stdout] 451 |         try!(self.emit_bool(true));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/decoder.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let header = try!(self.reader.read_u8());
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:31:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |             let byte = try!(self.reader.read_u8());
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let header = try!(self.reader.read_u8());
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:43:24
[INFO] [stdout]    |
[INFO] [stdout] 43 |             let byte = try!(self.reader.read_u8());
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:72:19
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let val = try!(self.read_var_u64());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:77:19
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let val = try!(self.reader.read_i8());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:81:19
[INFO] [stdout]    |
[INFO] [stdout] 81 |         let val = try!(self.reader.read_i16::<BigEndian>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:85:19
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let val = try!(self.reader.read_i32::<BigEndian>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let val = try!(self.reader.read_i64::<BigEndian>());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let val = try!(self.read_var_i64());
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decoder.rs:98:15
[INFO] [stdout]    |
[INFO] [stdout] 98 |         match try!(self.reader.read_u8()) {
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decoder.rs:105:19
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let val = try!(self.reader.read_i32::<BigEndian>());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decoder.rs:111:19
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let val = try!(self.reader.read_i64::<BigEndian>());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decoder.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |             let c = try!(self.read_char());
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decoder.rs:144:18
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let id = try!(self.read_usize());
[INFO] [stdout]     |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decoder.rs:193:23
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let is_some = try!(self.read_bool());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         try!(value.encode(&mut encoder));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:174:32
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:170:39
[INFO] [stdout]     |
[INFO] [stdout] 170 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]     |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]    --> src/lib.rs:178:39
[INFO] [stdout]     |
[INFO] [stdout] 178 |             Error::Io(ref err) => err.cause(),
[INFO] [stdout]     |                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap_or` found for mutable reference `&mut str` in the current scope
[INFO] [stdout]    --> src/encoder.rs:364:41
[INFO] [stdout]     |
[INFO] [stdout] 364 |         let n = v.encode_utf8(&mut buf).unwrap_or(0);
[INFO] [stdout]     |                                         ^^^^^^^^^ method not found in `&mut str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `chars` found for mutable reference `&mut BufReader<R>` in the current scope
[INFO] [stdout]    --> src/decoder.rs:118:34
[INFO] [stdout]     |
[INFO] [stdout] 118 |         match (&mut self.reader).chars().next() {
[INFO] [stdout]     |                                  ^^^^^ method not found in `&mut BufReader<R>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]   --> src/lib.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 | use std::error::Error as StdError;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 15 previous errors; 42 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0433, E0557, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bytekey`
[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] error: build failed
[INFO] running `Command { std: "docker" "inspect" "785cd7bb12caffaeb6f886a410c6bbb9a602b905b1c884b58074da2dc9a32874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785cd7bb12caffaeb6f886a410c6bbb9a602b905b1c884b58074da2dc9a32874", kill_on_drop: false }`
[INFO] [stdout] 785cd7bb12caffaeb6f886a410c6bbb9a602b905b1c884b58074da2dc9a32874
