[INFO] fetching crate rmp-serialize 0.8.1...
[INFO] testing rmp-serialize-0.8.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate rmp-serialize 0.8.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rmp-serialize 0.8.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmp-serialize 0.8.1
[INFO] finished tweaking crates.io crate rmp-serialize 0.8.1
[INFO] tweaked toml for crates.io crate rmp-serialize 0.8.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 478a2d1caddf8317db4d5d258ba372a53f2cc3655c6ca1e56ff15fcf6326e2c7
[INFO] running `Command { std: "docker" "start" "-a" "478a2d1caddf8317db4d5d258ba372a53f2cc3655c6ca1e56ff15fcf6326e2c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "478a2d1caddf8317db4d5d258ba372a53f2cc3655c6ca1e56ff15fcf6326e2c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "478a2d1caddf8317db4d5d258ba372a53f2cc3655c6ca1e56ff15fcf6326e2c7", kill_on_drop: false }`
[INFO] [stdout] 478a2d1caddf8317db4d5d258ba372a53f2cc3655c6ca1e56ff15fcf6326e2c7
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b060ef77b79e9a088ac7d9c9216f8c85f5bfc5eb1a650c169db7dd6fe3611a5
[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" "4b060ef77b79e9a088ac7d9c9216f8c85f5bfc5eb1a650c169db7dd6fe3611a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rmp v0.8.10
[INFO] [stderr]    Compiling rmp-serialize v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decode.rs:29:32
[INFO] [stdout]    |
[INFO] [stdout] 29 |     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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |         Ok(try!(read_nil(&mut self.rd)))
[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/decode.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 |         Ok(try!(read_bool(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |         Ok(try!(read_f32(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |         Ok(try!(read_f64(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut res = try!(self.read_str());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         try!(self.rd.read_exact(&mut buf).map_err(|err| Error::InvalidDataRead(err)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let len = try!(read_str_len(&mut self.rd));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:199:19
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let len = try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:210:18
[INFO] [stdout]     |
[INFO] [stdout] 210 |         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/decode.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |             try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let actual = try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:296:19
[INFO] [stdout]     |
[INFO] [stdout] 296 |         let len = try!(read_array_len(&mut self.rd)) as usize;
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:310:19
[INFO] [stdout]     |
[INFO] [stdout] 310 |         let len = try!(read_map_len(&mut self.rd)) as usize;
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encode.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     wr: &'a mut Write,
[INFO] [stdout]    |                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encode.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(wr: &'a mut Write) -> Encoder<'a> {
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         try!(write_uint(&mut self.wr, val));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         try!(write_sint(&mut self.wr, val));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         try!(write_array_len(&mut self.wr, 2));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         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/encode.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         try!(write_map_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[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/decode.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout] 44 |         error::Error::description(self).fmt(f)
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
[INFO] running `Command { std: "docker" "inspect" "4b060ef77b79e9a088ac7d9c9216f8c85f5bfc5eb1a650c169db7dd6fe3611a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b060ef77b79e9a088ac7d9c9216f8c85f5bfc5eb1a650c169db7dd6fe3611a5", kill_on_drop: false }`
[INFO] [stdout] 4b060ef77b79e9a088ac7d9c9216f8c85f5bfc5eb1a650c169db7dd6fe3611a5
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 896d2fed994a0ed72dbb45bfa6e4eb2c9fa53424f88ab5d85dfb8eff891fc714
[INFO] running `Command { std: "docker" "start" "-a" "896d2fed994a0ed72dbb45bfa6e4eb2c9fa53424f88ab5d85dfb8eff891fc714", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decode.rs:29:32
[INFO] [stdout]    |
[INFO] [stdout] 29 |     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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rmp-serialize v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |         Ok(try!(read_nil(&mut self.rd)))
[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/decode.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 |         Ok(try!(read_bool(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |         Ok(try!(read_f32(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |         Ok(try!(read_f64(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut res = try!(self.read_str());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         try!(self.rd.read_exact(&mut buf).map_err(|err| Error::InvalidDataRead(err)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let len = try!(read_str_len(&mut self.rd));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:199:19
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let len = try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:210:18
[INFO] [stdout]     |
[INFO] [stdout] 210 |         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/decode.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |             try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let actual = try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:296:19
[INFO] [stdout]     |
[INFO] [stdout] 296 |         let len = try!(read_array_len(&mut self.rd)) as usize;
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:310:19
[INFO] [stdout]     |
[INFO] [stdout] 310 |         let len = try!(read_map_len(&mut self.rd)) as usize;
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encode.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     wr: &'a mut Write,
[INFO] [stdout]    |                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encode.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(wr: &'a mut Write) -> Encoder<'a> {
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         try!(write_uint(&mut self.wr, val));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         try!(write_sint(&mut self.wr, val));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         try!(write_array_len(&mut self.wr, 2));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         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/encode.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         try!(write_map_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[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/decode.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout] 44 |         error::Error::description(self).fmt(f)
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> tests/encoder.rs:187:14
[INFO] [stdout]     |
[INFO] [stdout] 187 |     #[derive(RustcEncodable)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> tests/encoder.rs:262:32
[INFO] [stdout]     |
[INFO] [stdout] 262 |     #[derive(Debug, PartialEq, RustcEncodable)]
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> tests/encoder.rs:280:32
[INFO] [stdout]     |
[INFO] [stdout] 280 |     #[derive(Debug, PartialEq, RustcEncodable)]
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]    --> tests/encoder.rs:308:32
[INFO] [stdout]     |
[INFO] [stdout] 308 |     #[derive(Debug, PartialEq, RustcEncodable)]
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decode.rs:29:32
[INFO] [stdout]    |
[INFO] [stdout] 29 |     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 is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:122:12
[INFO] [stdout]     |
[INFO] [stdout] 122 |         Ok(try!(read_nil(&mut self.rd)))
[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/decode.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 |         Ok(try!(read_bool(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:142:12
[INFO] [stdout]     |
[INFO] [stdout] 142 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:146:12
[INFO] [stdout]     |
[INFO] [stdout] 146 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:158:12
[INFO] [stdout]     |
[INFO] [stdout] 158 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 162 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:166:12
[INFO] [stdout]     |
[INFO] [stdout] 166 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:170:12
[INFO] [stdout]     |
[INFO] [stdout] 170 |         Ok(try!(read_f32(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:174:12
[INFO] [stdout]     |
[INFO] [stdout] 174 |         Ok(try!(read_f64(&mut self.rd)))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |         let mut res = try!(self.read_str());
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 |         try!(self.rd.read_exact(&mut buf).map_err(|err| Error::InvalidDataRead(err)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:187:19
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let len = try!(read_str_len(&mut self.rd));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:199:19
[INFO] [stdout]     |
[INFO] [stdout] 199 |         let len = try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:210:18
[INFO] [stdout]     |
[INFO] [stdout] 210 |         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/decode.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |             try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let actual = try!(read_array_len(&mut self.rd));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:296:19
[INFO] [stdout]     |
[INFO] [stdout] 296 |         let len = try!(read_array_len(&mut self.rd)) as usize;
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/decode.rs:310:19
[INFO] [stdout]     |
[INFO] [stdout] 310 |         let len = try!(read_map_len(&mut self.rd)) as usize;
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encode.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |     wr: &'a mut Write,
[INFO] [stdout]    |                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/encode.rs:30:28
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(wr: &'a mut Write) -> Encoder<'a> {
[INFO] [stdout]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         try!(write_uint(&mut self.wr, val));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/encode.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         try!(write_sint(&mut self.wr, val));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         try!(write_array_len(&mut self.wr, 2));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         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/encode.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:170:9
[INFO] [stdout]     |
[INFO] [stdout] 170 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/encode.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         try!(write_map_len(&mut self.wr, len as u32));
[INFO] [stdout]     |         ^^^
[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/decode.rs:44:23
[INFO] [stdout]    |
[INFO] [stdout] 44 |         error::Error::description(self).fmt(f)
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.90s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "896d2fed994a0ed72dbb45bfa6e4eb2c9fa53424f88ab5d85dfb8eff891fc714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "896d2fed994a0ed72dbb45bfa6e4eb2c9fa53424f88ab5d85dfb8eff891fc714", kill_on_drop: false }`
[INFO] [stdout] 896d2fed994a0ed72dbb45bfa6e4eb2c9fa53424f88ab5d85dfb8eff891fc714
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5c32326c06ad5142d7a650909ca92177515142870e0b4a39c9ec115cf2b9c329
[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" "5c32326c06ad5142d7a650909ca92177515142870e0b4a39c9ec115cf2b9c329", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decode.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |     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]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:122:12
[INFO] [stderr]     |
[INFO] [stderr] 122 |         Ok(try!(read_nil(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:126:12
[INFO] [stderr]     |
[INFO] [stderr] 126 |         Ok(try!(read_bool(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:138:12
[INFO] [stderr]     |
[INFO] [stderr] 138 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:142:12
[INFO] [stderr]     |
[INFO] [stderr] 142 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:146:12
[INFO] [stderr]     |
[INFO] [stderr] 146 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:150:12
[INFO] [stderr]     |
[INFO] [stderr] 150 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:154:12
[INFO] [stderr]     |
[INFO] [stderr] 154 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:158:12
[INFO] [stderr]     |
[INFO] [stderr] 158 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:162:12
[INFO] [stderr]     |
[INFO] [stderr] 162 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:166:12
[INFO] [stderr]     |
[INFO] [stderr] 166 |         Ok(try!(read_int(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:170:12
[INFO] [stderr]     |
[INFO] [stderr] 170 |         Ok(try!(read_f32(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:174:12
[INFO] [stderr]     |
[INFO] [stderr] 174 |         Ok(try!(read_f64(&mut self.rd)))
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:178:23
[INFO] [stderr]     |
[INFO] [stderr] 178 |         let mut res = try!(self.read_str());
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:191:9
[INFO] [stderr]     |
[INFO] [stderr] 191 |         try!(self.rd.read_exact(&mut buf).map_err(|err| Error::InvalidDataRead(err)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:187:19
[INFO] [stderr]     |
[INFO] [stderr] 187 |         let len = try!(read_str_len(&mut self.rd));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:199:19
[INFO] [stderr]     |
[INFO] [stderr] 199 |         let len = try!(read_array_len(&mut self.rd));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:210:18
[INFO] [stderr]     |
[INFO] [stderr] 210 |         let id = try!(self.read_usize());
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:213:13
[INFO] [stderr]     |
[INFO] [stderr] 213 |             try!(read_array_len(&mut self.rd));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:254:22
[INFO] [stderr]     |
[INFO] [stderr] 254 |         let actual = try!(read_array_len(&mut self.rd));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:296:19
[INFO] [stderr]     |
[INFO] [stderr] 296 |         let len = try!(read_array_len(&mut self.rd)) as usize;
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/decode.rs:310:19
[INFO] [stderr]     |
[INFO] [stderr] 310 |         let len = try!(read_map_len(&mut self.rd)) as usize;
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/encode.rs:25:17
[INFO] [stderr]    |
[INFO] [stderr] 25 |     wr: &'a mut Write,
[INFO] [stderr]    |                 ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/encode.rs:30:28
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(wr: &'a mut Write) -> Encoder<'a> {
[INFO] [stderr]    |                            ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/encode.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         try!(write_uint(&mut self.wr, val));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/encode.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         try!(write_sint(&mut self.wr, val));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |         try!(write_array_len(&mut self.wr, 2));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         try!(self.emit_usize(id));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:212:9
[INFO] [stderr]     |
[INFO] [stderr] 212 |         try!(write_array_len(&mut self.wr, len as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/encode.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         try!(write_map_len(&mut self.wr, len as u32));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/decode.rs:44:23
[INFO] [stderr]    |
[INFO] [stderr] 44 |         error::Error::description(self).fmt(f)
[INFO] [stderr]    |                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rmp-serialize` (lib) generated 35 warnings
[INFO] [stderr] warning: `rmp-serialize` (lib test) generated 35 warnings (35 duplicates)
[INFO] [stderr] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]    --> tests/encoder.rs:187:14
[INFO] [stderr]     |
[INFO] [stderr] 187 |     #[derive(RustcEncodable)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]    --> tests/encoder.rs:262:32
[INFO] [stderr]     |
[INFO] [stderr] 262 |     #[derive(Debug, PartialEq, RustcEncodable)]
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]    --> tests/encoder.rs:280:32
[INFO] [stderr]     |
[INFO] [stderr] 280 |     #[derive(Debug, PartialEq, RustcEncodable)]
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stderr]    --> tests/encoder.rs:308:32
[INFO] [stderr]     |
[INFO] [stderr] 308 |     #[derive(Debug, PartialEq, RustcEncodable)]
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rmp-serialize` (test "encoder") generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rmp_serialize-ee98987947321c69)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/encoder.rs (/opt/rustwide/target/debug/deps/encoder-24db8ebafd8d718c)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test encode_struct_with_string_using_vec ... ok
[INFO] [stdout] test pass_encoding_struct_into_vec ... ok
[INFO] [stdout] test pass_enum ... ok
[INFO] [stdout] test pass_f32 ... ok
[INFO] [stdout] test pass_f64 ... ok
[INFO] [stdout] test pass_i16 ... ok
[INFO] [stdout] test pass_i32 ... ok
[INFO] [stdout] test pass_i64 ... ok
[INFO] [stdout] test pass_i8 ... ok
[INFO] [stdout] test pass_isize ... ok
[INFO] [stdout] test pass_map ... ok
[INFO] [stdout] test pass_null ... ok
[INFO] [stdout] test pass_option_none ... ok
[INFO] [stdout] test pass_option_some ... ok
[INFO] [stdout] test pass_seq ... ok
[INFO] [stdout] test pass_tuple ... ok
[INFO] [stdout] test pass_struct ... ok
[INFO] [stdout] test pass_u32 ... ok
[INFO] [stdout] test pass_u64 ... ok
[INFO] [stdout] test pass_u8 ... ok
[INFO] [stdout] test pass_usize ... ok
[INFO] [stdout] test pass_bool ... ok
[INFO] [stdout] test pass_enum_variant_with_arg ... ok
[INFO] [stdout] test fail_null ... ok
[INFO] [stdout] test pass_char ... ok
[INFO] [stdout] test pass_u16 ... ok
[INFO] [stdout] test pass_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rmp-serialize
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] test src/lib.rs - (line 48) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.69s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5c32326c06ad5142d7a650909ca92177515142870e0b4a39c9ec115cf2b9c329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c32326c06ad5142d7a650909ca92177515142870e0b4a39c9ec115cf2b9c329", kill_on_drop: false }`
[INFO] [stdout] 5c32326c06ad5142d7a650909ca92177515142870e0b4a39c9ec115cf2b9c329