[INFO] fetching crate slog-html 0.1.3...
[INFO] testing slog-html-0.1.3 against nightly-2024-10-28 for randomize-layout
[INFO] extracting crate slog-html 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate slog-html 0.1.3 on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-html 0.1.3
[INFO] finished tweaking crates.io crate slog-html 0.1.3
[INFO] tweaked toml for crates.io crate slog-html 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding chrono v0.2.25 (available: v0.4.38)
[INFO] [stderr]       Adding slog v1.7.1 (available: v2.7.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog-extra v0.1.2
[INFO] [stderr]   Downloaded slog v1.7.1
[INFO] [stderr]   Downloaded slog-stream v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7251adc3b65c626ff2a8144a23cf357129674171ea551fb634db473e8cac73fd
[INFO] running `Command { std: "docker" "start" "-a" "7251adc3b65c626ff2a8144a23cf357129674171ea551fb634db473e8cac73fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7251adc3b65c626ff2a8144a23cf357129674171ea551fb634db473e8cac73fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7251adc3b65c626ff2a8144a23cf357129674171ea551fb634db473e8cac73fd", kill_on_drop: false }`
[INFO] [stdout] 7251adc3b65c626ff2a8144a23cf357129674171ea551fb634db473e8cac73fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b930501e60600cd08bfa69cdf99bda1541206ee0bd3f2b9b7a76f2b8f5182da1
[INFO] running `Command { std: "docker" "start" "-a" "b930501e60600cd08bfa69cdf99bda1541206ee0bd3f2b9b7a76f2b8f5182da1", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling slog v1.7.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling slog-extra v0.1.2
[INFO] [stderr]    Compiling slog-stream v1.2.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling slog-html v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[macro_use]
[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/decorator.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         try!(write!(io, "<span style=\""));
[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/decorator.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(write!(io, "\">"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         try!(write!(io, "</span>"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             try!(write!(io, "color:#{};", color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             try!(write!(io, "font-style:italic;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try!(write!(io, "{}", custom));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         try!(write!(io, "<span style=\""));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(io, "\">"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         try!(write!(io, "</span>"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(write!(io, "color:#{};", color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             try!(write!(io, "color:#{};", self.level_color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             try!(write!(io, "font-style:italic;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(write!(io, "{}", custom));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:152:13
[INFO] [stdout]     |
[INFO] [stdout] 152 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         try!(self.print_indent(io, indent));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:172:38
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let mut record_value_stack = try!(self.record_value_stack(record, logger_values));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:184:17
[INFO] [stdout]     |
[INFO] [stdout] 184 |                 try!(self.print_indent(io, i));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 try!(io.write_all(&record_value_stack[i]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:186:17
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 try!(io.write_all(b"</pre>\n"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:230:21
[INFO] [stdout]     |
[INFO] [stdout] 230 |                     try!(serializer.print_comma());
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:247:29
[INFO] [stdout]     |
[INFO] [stdout] 247 |             let mut value = try!(self.record_value_stack(record, parent));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |             try!(write!(io, "  "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:276:24
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = dyn Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:276:32
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut dyn io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |                    io: &mut io::Write,
[INFO] [stdout]     |                             ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 135 |                    io: &mut dyn io::Write,
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:166:32
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       io: &mut io::Write,
[INFO] [stdout]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       io: &mut dyn io::Write,
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:254:37
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn print_indent(&self, io: &mut io::Write, indent: usize) -> io::Result<()> {
[INFO] [stdout]     |                                     ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn print_indent(&self, io: &mut dyn io::Write, indent: usize) -> io::Result<()> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:264:24
[INFO] [stdout]     |
[INFO] [stdout] 264 |               io: &mut io::Write,
[INFO] [stdout]     |                        ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 264 |               io: &mut dyn io::Write,
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:283:33
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn timestamp_local(io: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn timestamp_local(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:290:31
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub fn timestamp_utc(io: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                               ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub fn timestamp_utc(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:381:26
[INFO] [stdout]     |
[INFO] [stdout] 381 |         where F: Fn(&mut io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stdout]     |                          ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 381 |         where F: Fn(&mut dyn io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn fmt(io: &mut io::Write,
[INFO] [stdout]    |                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn fmt(io: &mut dyn io::Write,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &dyn Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut dyn io::Write) -> io::Result<()>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:70:27
[INFO] [stdout]    |
[INFO] [stdout] 70 |                  io: &mut io::Write,
[INFO] [stdout]    |                           ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |                  io: &mut dyn io::Write,
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                              ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                io: &mut io::Write,
[INFO] [stdout]    |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |                io: &mut dyn io::Write,
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 102 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:103:20
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:103:28
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:109:25
[INFO] [stdout]     |
[INFO] [stdout] 109 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:110:28
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:116:25
[INFO] [stdout]     |
[INFO] [stdout] 116 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:117:28
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:124:20
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:124:28
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:20:68
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stdout]    |                                                                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut dyn io::Write| write!(io, ", ")));
[INFO] [stdout]    |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[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]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `slog::OwnedKeyValueList::parent`: &Option<...> is a stupid type to return. Use `get_parent` for now.
[INFO] [stdout]    --> src/lib.rs:246:54
[INFO] [stdout]     |
[INFO] [stdout] 246 |         if let Some(ref parent) = *logger_values_ref.parent() {
[INFO] [stdout]     |                                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:160:14
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let (mut io, _) = serializer.finish();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:209:14
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let (mut io, _) = serializer.finish();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "b930501e60600cd08bfa69cdf99bda1541206ee0bd3f2b9b7a76f2b8f5182da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b930501e60600cd08bfa69cdf99bda1541206ee0bd3f2b9b7a76f2b8f5182da1", kill_on_drop: false }`
[INFO] [stdout] b930501e60600cd08bfa69cdf99bda1541206ee0bd3f2b9b7a76f2b8f5182da1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f39cd9fd6dce60113ac345e3c0e6dc67f7d758931f2df3bd704e96cdd4847d70
[INFO] running `Command { std: "docker" "start" "-a" "f39cd9fd6dce60113ac345e3c0e6dc67f7d758931f2df3bd704e96cdd4847d70", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[macro_use]
[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/decorator.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         try!(write!(io, "<span style=\""));
[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/decorator.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(write!(io, "\">"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         try!(write!(io, "</span>"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             try!(write!(io, "color:#{};", color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             try!(write!(io, "font-style:italic;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try!(write!(io, "{}", custom));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         try!(write!(io, "<span style=\""));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(io, "\">"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         try!(write!(io, "</span>"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(write!(io, "color:#{};", color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             try!(write!(io, "color:#{};", self.level_color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             try!(write!(io, "font-style:italic;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(write!(io, "{}", custom));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:152:13
[INFO] [stdout]     |
[INFO] [stdout] 152 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         try!(self.print_indent(io, indent));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:172:38
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let mut record_value_stack = try!(self.record_value_stack(record, logger_values));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:184:17
[INFO] [stdout]     |
[INFO] [stdout] 184 |                 try!(self.print_indent(io, i));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 try!(io.write_all(&record_value_stack[i]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:186:17
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 try!(io.write_all(b"</pre>\n"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:230:21
[INFO] [stdout]     |
[INFO] [stdout] 230 |                     try!(serializer.print_comma());
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:247:29
[INFO] [stdout]     |
[INFO] [stdout] 247 |             let mut value = try!(self.record_value_stack(record, parent));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |             try!(write!(io, "  "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:276:24
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = dyn Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:276:32
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut dyn io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |                    io: &mut io::Write,
[INFO] [stdout]     |                             ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 135 |                    io: &mut dyn io::Write,
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:166:32
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       io: &mut io::Write,
[INFO] [stdout]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       io: &mut dyn io::Write,
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:254:37
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn print_indent(&self, io: &mut io::Write, indent: usize) -> io::Result<()> {
[INFO] [stdout]     |                                     ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn print_indent(&self, io: &mut dyn io::Write, indent: usize) -> io::Result<()> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:264:24
[INFO] [stdout]     |
[INFO] [stdout] 264 |               io: &mut io::Write,
[INFO] [stdout]     |                        ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 264 |               io: &mut dyn io::Write,
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:283:33
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn timestamp_local(io: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn timestamp_local(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:290:31
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub fn timestamp_utc(io: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                               ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub fn timestamp_utc(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:381:26
[INFO] [stdout]     |
[INFO] [stdout] 381 |         where F: Fn(&mut io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stdout]     |                          ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 381 |         where F: Fn(&mut dyn io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn fmt(io: &mut io::Write,
[INFO] [stdout]    |                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn fmt(io: &mut dyn io::Write,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &dyn Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut dyn io::Write) -> io::Result<()>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:70:27
[INFO] [stdout]    |
[INFO] [stdout] 70 |                  io: &mut io::Write,
[INFO] [stdout]    |                           ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |                  io: &mut dyn io::Write,
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                              ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                io: &mut io::Write,
[INFO] [stdout]    |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |                io: &mut dyn io::Write,
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 102 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:103:20
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:103:28
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:109:25
[INFO] [stdout]     |
[INFO] [stdout] 109 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:110:28
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:116:25
[INFO] [stdout]     |
[INFO] [stdout] 116 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:117:28
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:124:20
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:124:28
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:20:68
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stdout]    |                                                                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut dyn io::Write| write!(io, ", ")));
[INFO] [stdout]    |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slog-html v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[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]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `slog::OwnedKeyValueList::parent`: &Option<...> is a stupid type to return. Use `get_parent` for now.
[INFO] [stdout]    --> src/lib.rs:246:54
[INFO] [stdout]     |
[INFO] [stdout] 246 |         if let Some(ref parent) = *logger_values_ref.parent() {
[INFO] [stdout]     |                                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:160:14
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let (mut io, _) = serializer.finish();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:209:14
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let (mut io, _) = serializer.finish();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:84:1
[INFO] [stdout]    |
[INFO] [stdout] 84 | #[macro_use]
[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/decorator.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         try!(write!(io, "<span style=\""));
[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/decorator.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         try!(write!(io, "\">"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         try!(write!(io, "</span>"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |             try!(write!(io, "color:#{};", color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             try!(write!(io, "font-style:italic;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             try!(write!(io, "{}", custom));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         try!(write!(io, "<span style=\""));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write!(io, "\">"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         try!(f(io));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         try!(write!(io, "</span>"));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(write!(io, "color:#{};", color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             try!(write!(io, "color:#{};", self.level_color));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |             try!(write!(io, "font-style:italic;"));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/decorator.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |             try!(write!(io, "{}", custom));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/serializer.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:32:9
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/serializer.rs:33:9
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:152:13
[INFO] [stdout]     |
[INFO] [stdout] 152 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:156:13
[INFO] [stdout]     |
[INFO] [stdout] 156 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:157:13
[INFO] [stdout]     |
[INFO] [stdout] 157 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         try!(self.print_indent(io, indent));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:172:38
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let mut record_value_stack = try!(self.record_value_stack(record, logger_values));
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:184:17
[INFO] [stdout]     |
[INFO] [stdout] 184 |                 try!(self.print_indent(io, i));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:185:17
[INFO] [stdout]     |
[INFO] [stdout] 185 |                 try!(io.write_all(&record_value_stack[i]));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:186:17
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 try!(io.write_all(b"</pre>\n"));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:205:13
[INFO] [stdout]     |
[INFO] [stdout] 205 |             try!(serializer.print_comma());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:232:17
[INFO] [stdout]     |
[INFO] [stdout] 232 |                 try!(v.serialize(record, k, &mut serializer));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:230:21
[INFO] [stdout]     |
[INFO] [stdout] 230 |                     try!(serializer.print_comma());
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:247:29
[INFO] [stdout]     |
[INFO] [stdout] 247 |             let mut value = try!(self.record_value_stack(record, parent));
[INFO] [stdout]     |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |             try!(write!(io, "  "));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:276:24
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = dyn Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:276:32
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 276 | pub type TimestampFn = Fn(&mut dyn io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:135:29
[INFO] [stdout]     |
[INFO] [stdout] 135 |                    io: &mut io::Write,
[INFO] [stdout]     |                             ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 135 |                    io: &mut dyn io::Write,
[INFO] [stdout]     |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:166:32
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       io: &mut io::Write,
[INFO] [stdout]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 |                       io: &mut dyn io::Write,
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:254:37
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn print_indent(&self, io: &mut io::Write, indent: usize) -> io::Result<()> {
[INFO] [stdout]     |                                     ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 254 |     fn print_indent(&self, io: &mut dyn io::Write, indent: usize) -> io::Result<()> {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:264:24
[INFO] [stdout]     |
[INFO] [stdout] 264 |               io: &mut io::Write,
[INFO] [stdout]     |                        ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 264 |               io: &mut dyn io::Write,
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:283:33
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn timestamp_local(io: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 283 | pub fn timestamp_local(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:290:31
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub fn timestamp_utc(io: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                               ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 290 | pub fn timestamp_utc(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stdout]     |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:381:26
[INFO] [stdout]     |
[INFO] [stdout] 381 |         where F: Fn(&mut io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stdout]     |                          ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 381 |         where F: Fn(&mut dyn io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn fmt(io: &mut io::Write,
[INFO] [stdout]    |                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn fmt(io: &mut dyn io::Write,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &dyn Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stdout]    |                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 |        f: &Fn(&mut dyn io::Write) -> io::Result<()>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:70:27
[INFO] [stdout]    |
[INFO] [stdout] 70 |                  io: &mut io::Write,
[INFO] [stdout]    |                           ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |                  io: &mut dyn io::Write,
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:71:30
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                              ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 |                  f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 |                io: &mut io::Write,
[INFO] [stdout]    |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |                io: &mut dyn io::Write,
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/decorator.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]    |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 96 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 102 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:103:20
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:103:28
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 103 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:109:25
[INFO] [stdout]     |
[INFO] [stdout] 109 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 109 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:110:28
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 110 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:116:25
[INFO] [stdout]     |
[INFO] [stdout] 116 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 116 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:117:28
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 117 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:123:25
[INFO] [stdout]     |
[INFO] [stdout] 123 |                io: &mut io::Write,
[INFO] [stdout]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |                io: &mut dyn io::Write,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:124:20
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/decorator.rs:124:28
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:20:68
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stdout]    |                                                                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut dyn io::Write| write!(io, ", ")));
[INFO] [stdout]    |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |         s!(self, key, "None");
[INFO] [stdout]    |         --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |         s!(self, key, "()");
[INFO] [stdout]    |         ------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 64 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:31:58
[INFO] [stdout]    |
[INFO] [stdout] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:32:64
[INFO] [stdout]    |
[INFO] [stdout] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/serializer.rs:33:60
[INFO] [stdout]    |
[INFO] [stdout] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]    |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |         s!(self, key, val);
[INFO] [stdout]    |         ------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:31:58
[INFO] [stdout]     |
[INFO] [stdout] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stdout]     |                                                          ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:32:64
[INFO] [stdout]     |
[INFO] [stdout] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stdout]     |                                                                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/serializer.rs:33:60
[INFO] [stdout]     |
[INFO] [stdout] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stdout]     |                                                            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |         s!(self, key, val);
[INFO] [stdout]     |         ------------------ in this macro invocation
[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]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `slog::OwnedKeyValueList::parent`: &Option<...> is a stupid type to return. Use `get_parent` for now.
[INFO] [stdout]    --> src/lib.rs:246:54
[INFO] [stdout]     |
[INFO] [stdout] 246 |         if let Some(ref parent) = *logger_values_ref.parent() {
[INFO] [stdout]     |                                                      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:160:14
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let (mut io, _) = serializer.finish();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:209:14
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let (mut io, _) = serializer.finish();
[INFO] [stdout]     |              ----^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "f39cd9fd6dce60113ac345e3c0e6dc67f7d758931f2df3bd704e96cdd4847d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f39cd9fd6dce60113ac345e3c0e6dc67f7d758931f2df3bd704e96cdd4847d70", kill_on_drop: false }`
[INFO] [stdout] f39cd9fd6dce60113ac345e3c0e6dc67f7d758931f2df3bd704e96cdd4847d70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5e4b7484f3b1cec8db21f9684f8b918ee2cc859f7076bab6fd972a0b4340a5e8
[INFO] running `Command { std: "docker" "start" "-a" "5e4b7484f3b1cec8db21f9684f8b918ee2cc859f7076bab6fd972a0b4340a5e8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:84:1
[INFO] [stderr]    |
[INFO] [stderr] 84 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |         try!(write!(io, "<span style=\""));
[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/decorator.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         try!(write!(io, "\">"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |         try!(f(io));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         try!(write!(io, "</span>"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |             try!(write!(io, "color:#{};", color));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             try!(write!(io, "font-style:italic;"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |             try!(write!(io, "{}", custom));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |         try!(f(io));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         try!(write!(io, "<span style=\""));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         try!(write!(io, "\">"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |         try!(f(io));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |         try!(write!(io, "</span>"));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             try!(write!(io, "color:#{};", color));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             try!(write!(io, "color:#{};", self.level_color));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |             try!(write!(io, "font-weight:bold;"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |             try!(write!(io, "font-style:italic;"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/decorator.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             try!(write!(io, "{}", custom));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |         s!(self, key, "None");
[INFO] [stderr]    |         --------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |         s!(self, key, "None");
[INFO] [stderr]    |         --------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |         s!(self, key, "None");
[INFO] [stderr]    |         --------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |         s!(self, key, "()");
[INFO] [stderr]    |         ------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |         s!(self, key, "()");
[INFO] [stderr]    |         ------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |         s!(self, key, "()");
[INFO] [stderr]    |         ------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 79 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 79 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 79 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 94 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 94 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 94 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/serializer.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:31:9
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:32:9
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:33:9
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:31:9
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:32:9
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:33:9
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:31:9
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:32:9
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:33:9
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:31:9
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:32:9
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:33:9
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:31:9
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:32:9
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/serializer.rs:33:9
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |             try!(serializer.print_comma());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |             try!(serializer.print_comma());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:157:13
[INFO] [stderr]     |
[INFO] [stderr] 157 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:195:9
[INFO] [stderr]     |
[INFO] [stderr] 195 |         try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         try!(self.print_indent(io, indent));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         try!(r_decorator.fmt_timestamp(io, &*self.fn_timestamp));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:199:9
[INFO] [stderr]     |
[INFO] [stderr] 199 |         try!(r_decorator.fmt_level(io, &|io| write!(io, " {} ", record.level().as_short_str())));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |         try!(r_decorator.fmt_msg(io, &|io| write!(io, "{}", record.msg())));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:172:38
[INFO] [stderr]     |
[INFO] [stderr] 172 |         let mut record_value_stack = try!(self.record_value_stack(record, logger_values));
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:183:17
[INFO] [stderr]     |
[INFO] [stderr] 183 |                 try!(io.write_all(b"<pre style=\"margin-bottom:-0.5em\">"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:184:17
[INFO] [stderr]     |
[INFO] [stderr] 184 |                 try!(self.print_indent(io, i));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:185:17
[INFO] [stderr]     |
[INFO] [stderr] 185 |                 try!(io.write_all(&record_value_stack[i]));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:186:17
[INFO] [stderr]     |
[INFO] [stderr] 186 |                 try!(io.write_all(b"</pre>\n"));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:205:13
[INFO] [stderr]     |
[INFO] [stderr] 205 |             try!(serializer.print_comma());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:206:13
[INFO] [stderr]     |
[INFO] [stderr] 206 |             try!(v.serialize(record, k, &mut serializer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:232:17
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 try!(v.serialize(record, k, &mut serializer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:230:21
[INFO] [stderr]     |
[INFO] [stderr] 230 |                     try!(serializer.print_comma());
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:247:29
[INFO] [stderr]     |
[INFO] [stderr] 247 |             let mut value = try!(self.record_value_stack(record, parent));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |             try!(write!(io, "  "));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:276:24
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub type TimestampFn = dyn Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stderr]     |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:276:32
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub type TimestampFn = Fn(&mut io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stderr]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 276 | pub type TimestampFn = Fn(&mut dyn io::Write) -> io::Result<()> + Send + Sync;
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:135:29
[INFO] [stderr]     |
[INFO] [stderr] 135 |                    io: &mut io::Write,
[INFO] [stderr]     |                             ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 135 |                    io: &mut dyn io::Write,
[INFO] [stderr]     |                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:166:32
[INFO] [stderr]     |
[INFO] [stderr] 166 |                       io: &mut io::Write,
[INFO] [stderr]     |                                ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 166 |                       io: &mut dyn io::Write,
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:254:37
[INFO] [stderr]     |
[INFO] [stderr] 254 |     fn print_indent(&self, io: &mut io::Write, indent: usize) -> io::Result<()> {
[INFO] [stderr]     |                                     ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 254 |     fn print_indent(&self, io: &mut dyn io::Write, indent: usize) -> io::Result<()> {
[INFO] [stderr]     |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:264:24
[INFO] [stderr]     |
[INFO] [stderr] 264 |               io: &mut io::Write,
[INFO] [stderr]     |                        ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 264 |               io: &mut dyn io::Write,
[INFO] [stderr]     |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:283:33
[INFO] [stderr]     |
[INFO] [stderr] 283 | pub fn timestamp_local(io: &mut io::Write) -> io::Result<()> {
[INFO] [stderr]     |                                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 283 | pub fn timestamp_local(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stderr]     |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:290:31
[INFO] [stderr]     |
[INFO] [stderr] 290 | pub fn timestamp_utc(io: &mut io::Write) -> io::Result<()> {
[INFO] [stderr]     |                               ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 290 | pub fn timestamp_utc(io: &mut dyn io::Write) -> io::Result<()> {
[INFO] [stderr]     |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:381:26
[INFO] [stderr]     |
[INFO] [stderr] 381 |         where F: Fn(&mut io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stderr]     |                          ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 381 |         where F: Fn(&mut dyn io::Write) -> io::Result<()> + 'static + Send + Sync
[INFO] [stderr]     |                          +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn fmt(io: &mut io::Write,
[INFO] [stderr]    |                 ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn fmt(io: &mut dyn io::Write,
[INFO] [stderr]    |                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 |        f: &dyn Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stderr]    |            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:42:20
[INFO] [stderr]    |
[INFO] [stderr] 42 |        f: &Fn(&mut io::Write) -> io::Result<()>,
[INFO] [stderr]    |                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 |        f: &Fn(&mut dyn io::Write) -> io::Result<()>,
[INFO] [stderr]    |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:70:27
[INFO] [stderr]    |
[INFO] [stderr] 70 |                  io: &mut io::Write,
[INFO] [stderr]    |                           ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 70 |                  io: &mut dyn io::Write,
[INFO] [stderr]    |                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:71:22
[INFO] [stderr]    |
[INFO] [stderr] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 71 |                  f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]    |                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:71:30
[INFO] [stderr]    |
[INFO] [stderr] 71 |                  f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]    |                              ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 71 |                  f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stderr]    |                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:95:25
[INFO] [stderr]    |
[INFO] [stderr] 95 |                io: &mut io::Write,
[INFO] [stderr]    |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 95 |                io: &mut dyn io::Write,
[INFO] [stderr]    |                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:96:20
[INFO] [stderr]    |
[INFO] [stderr] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 96 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]    |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decorator.rs:96:28
[INFO] [stderr]    |
[INFO] [stderr] 96 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]    |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 96 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:102:25
[INFO] [stderr]     |
[INFO] [stderr] 102 |                io: &mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 102 |                io: &mut dyn io::Write,
[INFO] [stderr]     |                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:103:20
[INFO] [stderr]     |
[INFO] [stderr] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 103 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:103:28
[INFO] [stderr]     |
[INFO] [stderr] 103 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 103 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:109:25
[INFO] [stderr]     |
[INFO] [stderr] 109 |                io: &mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 109 |                io: &mut dyn io::Write,
[INFO] [stderr]     |                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:110:20
[INFO] [stderr]     |
[INFO] [stderr] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 110 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:110:28
[INFO] [stderr]     |
[INFO] [stderr] 110 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 110 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:116:25
[INFO] [stderr]     |
[INFO] [stderr] 116 |                io: &mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 116 |                io: &mut dyn io::Write,
[INFO] [stderr]     |                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:117:20
[INFO] [stderr]     |
[INFO] [stderr] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 117 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:117:28
[INFO] [stderr]     |
[INFO] [stderr] 117 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 117 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:123:25
[INFO] [stderr]     |
[INFO] [stderr] 123 |                io: &mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 123 |                io: &mut dyn io::Write,
[INFO] [stderr]     |                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:124:20
[INFO] [stderr]     |
[INFO] [stderr] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 124 |                f: &dyn Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decorator.rs:124:28
[INFO] [stderr]     |
[INFO] [stderr] 124 |                f: &Fn(&mut io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 124 |                f: &Fn(&mut dyn io::Write) -> io::Result<()>)
[INFO] [stderr]     |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:20:68
[INFO] [stderr]    |
[INFO] [stderr] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut io::Write| write!(io, ", ")));
[INFO] [stderr]    |                                                                    ^^^^^^^^^
[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] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 20 |         try!(self.decorator.fmt_separator(&mut self.io, &|io: &mut dyn io::Write| write!(io, ", ")));
[INFO] [stderr]    |                                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |         s!(self, key, "None");
[INFO] [stderr]    |         --------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |         s!(self, key, "None");
[INFO] [stderr]    |         --------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |         s!(self, key, "None");
[INFO] [stderr]    |         --------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |         s!(self, key, "()");
[INFO] [stderr]    |         ------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |         s!(self, key, "()");
[INFO] [stderr]    |         ------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 44 |         s!(self, key, "()");
[INFO] [stderr]    |         ------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 64 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 79 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 79 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 79 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 89 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 94 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 94 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 94 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:31:58
[INFO] [stderr]    |
[INFO] [stderr] 31 |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:32:64
[INFO] [stderr]    |
[INFO] [stderr] 32 |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]    |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/serializer.rs:33:60
[INFO] [stderr]    |
[INFO] [stderr] 33 |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]    |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 99 |         s!(self, key, val);
[INFO] [stderr]    |         ------------------ in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:31:58
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:32:64
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:33:60
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:31:58
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:32:64
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:33:60
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 109 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:31:58
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:32:64
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:33:60
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 114 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:31:58
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:32:64
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:33:60
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 119 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:31:58
[INFO] [stderr]     |
[INFO] [stderr] 31  |         try!($s.decorator.fmt_key(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $k)));
[INFO] [stderr]     |                                                          ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:32:64
[INFO] [stderr]     |
[INFO] [stderr] 32  |         try!($s.decorator.fmt_separator(&mut $s.io, &|io: &mut io::Write| write!(io, ": ")));
[INFO] [stderr]     |                                                                ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/serializer.rs:33:60
[INFO] [stderr]     |
[INFO] [stderr] 33  |         try!($s.decorator.fmt_value(&mut $s.io, &|io: &mut io::Write| write!(io, "{}", $v)));
[INFO] [stderr]     |                                                            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |         s!(self, key, val);
[INFO] [stderr]     |         ------------------ in this macro invocation
[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]     = note: this warning originates in the macro `s` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `slog::OwnedKeyValueList::parent`: &Option<...> is a stupid type to return. Use `get_parent` for now.
[INFO] [stderr]    --> src/lib.rs:246:54
[INFO] [stderr]     |
[INFO] [stderr] 246 |         if let Some(ref parent) = *logger_values_ref.parent() {
[INFO] [stderr]     |                                                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:160:14
[INFO] [stderr]     |
[INFO] [stderr] 160 |         let (mut io, _) = serializer.finish();
[INFO] [stderr]     |              ----^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:209:14
[INFO] [stderr]     |
[INFO] [stderr] 209 |         let (mut io, _) = serializer.finish();
[INFO] [stderr]     |              ----^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `slog-html` (lib) generated 186 warnings (run `cargo fix --lib -p slog-html` to apply 33 suggestions)
[INFO] [stderr] warning: `slog-html` (lib test) generated 186 warnings (186 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slog_html-dfafd09c99242d04)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] [stderr]    Doc-tests slog_html
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 7) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 40) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 7) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:16:34:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x610442769a3a - std::backtrace_rs::backtrace::libunwind::trace::h207520d6e9873551
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x610442769a3a - std::backtrace_rs::backtrace::trace_unsynchronized::h2ed7433f370e3eca
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x610442769a3a - std::sys::backtrace::_print_fmt::h916fac51166b18d7
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x610442769a3a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha0a4c9b8ce3802e6
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x61044278a183 - core::fmt::rt::Argument::fmt::h4cfc8587d52b3eb5
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x61044278a183 - core::fmt::write::h522cc39e5b36ae9f
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/fmt/mod.rs:1190:21
[INFO] [stdout]    6:     0x6104427674a3 - std::io::Write::write_fmt::hf1c1dcc8cc1287f0
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x610442769882 - std::sys::backtrace::BacktraceLock::print::h4b9e00b29e9c0942
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x61044276a84c - std::panicking::default_hook::{{closure}}::hb59b88280d0324d9
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x61044276a692 - std::panicking::default_hook::he1dd496665be4a29
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:295:9
[INFO] [stdout]   10:     0x61044276ae47 - std::panicking::rust_panic_with_hook::h2ff17fe8f26dfcf8
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:801:13
[INFO] [stdout]   11:     0x61044276acda - std::panicking::begin_panic_handler::{{closure}}::h4fad77951c07e101
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:674:13
[INFO] [stdout]   12:     0x610442769f19 - std::sys::backtrace::__rust_end_short_backtrace::hb1a25b3da5d0ea08
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   13:     0x61044276a96c - rust_begin_unwind
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:665:5
[INFO] [stdout]   14:     0x6104427884c0 - core::panicking::panic_fmt::ha9db07b529f9b256
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/panicking.rs:75:14
[INFO] [stdout]   15:     0x610442788906 - core::result::unwrap_failed::h5e8218e4d4338b8a
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/result.rs:1698:5
[INFO] [stdout]   16:     0x61044272efa5 - rust_out::main::ha213a30daa5df4da
[INFO] [stdout]   17:     0x6104427244f3 - core::ops::function::FnOnce::call_once::hf7edf7132571051c
[INFO] [stdout]   18:     0x61044271fe46 - std::sys::backtrace::__rust_begin_short_backtrace::h32fd822fd2ba4079
[INFO] [stdout]   19:     0x61044271fd79 - std::rt::lang_start::{{closure}}::h4039a1c394ed4f7c
[INFO] [stdout]   20:     0x610442765577 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd87d66b906e0ccaf
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   21:     0x610442765577 - std::panicking::try::do_call::hae3703de71fc9e3a
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:557:40
[INFO] [stdout]   22:     0x610442765577 - std::panicking::try::h1178330e9a2b2645
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:520:19
[INFO] [stdout]   23:     0x610442765577 - std::panic::catch_unwind::h0acf49d2305d32ad
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panic.rs:358:14
[INFO] [stdout]   24:     0x610442765577 - std::rt::lang_start_internal::{{closure}}::h2d95182d798177be
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/rt.rs:174:48
[INFO] [stdout]   25:     0x610442765577 - std::panicking::try::do_call::hb506f5bfe11fd30c
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:557:40
[INFO] [stdout]   26:     0x610442765577 - std::panicking::try::h54d825c46bd0fa95
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:520:19
[INFO] [stdout]   27:     0x610442765577 - std::panic::catch_unwind::hffbb0ad20c4e9fac
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panic.rs:358:14
[INFO] [stdout]   28:     0x610442765577 - std::rt::lang_start_internal::h52c291ef1962c925
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/rt.rs:174:20
[INFO] [stdout]   29:     0x61044271fd57 - std::rt::lang_start::h8c6075cd6f225ba1
[INFO] [stdout]   30:     0x61044272f305 - main
[INFO] [stdout]   31:     0x7929af212d90 - <unknown>
[INFO] [stdout]   32:     0x7929af212e40 - __libc_start_main
[INFO] [stdout]   33:     0x61044271ec95 - _start
[INFO] [stdout]   34:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 40) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:16:34:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x638540710e6a - std::backtrace_rs::backtrace::libunwind::trace::h207520d6e9873551
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x638540710e6a - std::backtrace_rs::backtrace::trace_unsynchronized::h2ed7433f370e3eca
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x638540710e6a - std::sys::backtrace::_print_fmt::h916fac51166b18d7
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x638540710e6a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha0a4c9b8ce3802e6
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6385407315b3 - core::fmt::rt::Argument::fmt::h4cfc8587d52b3eb5
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x6385407315b3 - core::fmt::write::h522cc39e5b36ae9f
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/fmt/mod.rs:1190:21
[INFO] [stdout]    6:     0x63854070e8d3 - std::io::Write::write_fmt::hf1c1dcc8cc1287f0
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x638540710cb2 - std::sys::backtrace::BacktraceLock::print::h4b9e00b29e9c0942
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x638540711c7c - std::panicking::default_hook::{{closure}}::hb59b88280d0324d9
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x638540711ac2 - std::panicking::default_hook::he1dd496665be4a29
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:295:9
[INFO] [stdout]   10:     0x638540712277 - std::panicking::rust_panic_with_hook::h2ff17fe8f26dfcf8
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:801:13
[INFO] [stdout]   11:     0x63854071210a - std::panicking::begin_panic_handler::{{closure}}::h4fad77951c07e101
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:674:13
[INFO] [stdout]   12:     0x638540711349 - std::sys::backtrace::__rust_end_short_backtrace::hb1a25b3da5d0ea08
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   13:     0x638540711d9c - rust_begin_unwind
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:665:5
[INFO] [stdout]   14:     0x63854072f8f0 - core::panicking::panic_fmt::ha9db07b529f9b256
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/panicking.rs:75:14
[INFO] [stdout]   15:     0x63854072fd36 - core::result::unwrap_failed::h5e8218e4d4338b8a
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/result.rs:1698:5
[INFO] [stdout]   16:     0x6385406d60cd - rust_out::main::ha213a30daa5df4da
[INFO] [stdout]   17:     0x6385406cb613 - core::ops::function::FnOnce::call_once::hf7edf7132571051c
[INFO] [stdout]   18:     0x6385406c6f66 - std::sys::backtrace::__rust_begin_short_backtrace::h32fd822fd2ba4079
[INFO] [stdout]   19:     0x6385406c6e99 - std::rt::lang_start::{{closure}}::h4039a1c394ed4f7c
[INFO] [stdout]   20:     0x63854070c9a7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd87d66b906e0ccaf
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   21:     0x63854070c9a7 - std::panicking::try::do_call::hae3703de71fc9e3a
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:557:40
[INFO] [stdout]   22:     0x63854070c9a7 - std::panicking::try::h1178330e9a2b2645
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:520:19
[INFO] [stdout]   23:     0x63854070c9a7 - std::panic::catch_unwind::h0acf49d2305d32ad
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panic.rs:358:14
[INFO] [stdout]   24:     0x63854070c9a7 - std::rt::lang_start_internal::{{closure}}::h2d95182d798177be
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/rt.rs:174:48
[INFO] [stdout]   25:     0x63854070c9a7 - std::panicking::try::do_call::hb506f5bfe11fd30c
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:557:40
[INFO] [stdout]   26:     0x63854070c9a7 - std::panicking::try::h54d825c46bd0fa95
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panicking.rs:520:19
[INFO] [stdout]   27:     0x63854070c9a7 - std::panic::catch_unwind::hffbb0ad20c4e9fac
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/panic.rs:358:14
[INFO] [stdout]   28:     0x63854070c9a7 - std::rt::lang_start_internal::h52c291ef1962c925
[INFO] [stdout]                                at /rustc/df4ca44d3fbc9301ee17f30f4d474e6ae4b05252/library/std/src/rt.rs:174:20
[INFO] [stdout]   29:     0x6385406c6e77 - std::rt::lang_start::h8c6075cd6f225ba1
[INFO] [stdout]   30:     0x6385406d6615 - main
[INFO] [stdout]   31:     0x7ae01e509d90 - <unknown>
[INFO] [stdout]   32:     0x7ae01e509e40 - __libc_start_main
[INFO] [stdout]   33:     0x6385406c5db5 - _start
[INFO] [stdout]   34:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 40)
[INFO] [stdout]     src/lib.rs - (line 7)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "5e4b7484f3b1cec8db21f9684f8b918ee2cc859f7076bab6fd972a0b4340a5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e4b7484f3b1cec8db21f9684f8b918ee2cc859f7076bab6fd972a0b4340a5e8", kill_on_drop: false }`
[INFO] [stdout] 5e4b7484f3b1cec8db21f9684f8b918ee2cc859f7076bab6fd972a0b4340a5e8
