[INFO] fetching crate slog 2.5.2...
[INFO] testing slog-2.5.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate slog 2.5.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate slog 2.5.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking crates.io crate slog 2.5.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate slog 2.5.2
[INFO] tweaked toml for crates.io crate slog 2.5.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4572e8dc139817b9491b6ea44c47fbc40b72ac1cdf67837e3f98d879510db0e9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4572e8dc139817b9491b6ea44c47fbc40b72ac1cdf67837e3f98d879510db0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4572e8dc139817b9491b6ea44c47fbc40b72ac1cdf67837e3f98d879510db0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4572e8dc139817b9491b6ea44c47fbc40b72ac1cdf67837e3f98d879510db0e9", kill_on_drop: false }`
[INFO] [stdout] 4572e8dc139817b9491b6ea44c47fbc40b72ac1cdf67837e3f98d879510db0e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 749a78441605a7e875676418f98dc2ffa3ebcaa482c89757857057c83ba2b2de
[INFO] running `Command { std: "docker" "start" "-a" "749a78441605a7e875676418f98dc2ffa3ebcaa482c89757857057c83ba2b2de", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:1251:9
[INFO] [stdout]      |
[INFO] [stdout] 1251 |         try!(write!(f, "Logger{:?}", self.list));
[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/lib.rs:3226:9
[INFO] [stdout]      |
[INFO] [stdout] 3226 |         try!(self.0.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3350:9
[INFO] [stdout]      |
[INFO] [stdout] 3350 |         try!(self.kv.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3351:9
[INFO] [stdout]      |
[INFO] [stdout] 3351 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3363:9
[INFO] [stdout]      |
[INFO] [stdout] 3363 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3364:9
[INFO] [stdout]      |
[INFO] [stdout] 3364 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3376:9
[INFO] [stdout]      |
[INFO] [stdout] 3376 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3384:9
[INFO] [stdout]      |
[INFO] [stdout] 3384 |         try!(write!(f, "("));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3390:21
[INFO] [stdout]      |
[INFO] [stdout] 3390 |                     try!(write!(f, ", "));
[INFO] [stdout]      |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3393:17
[INFO] [stdout]      |
[INFO] [stdout] 3393 |                 try!(write!(f, "{}", key));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3399:13
[INFO] [stdout]      |
[INFO] [stdout] 3399 |             try!(
[INFO] [stdout]      |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3413:9
[INFO] [stdout]      |
[INFO] [stdout] 3413 |         try!(write!(f, ")"));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1079:27
[INFO] [stdout]      |
[INFO] [stdout] 1079 | pub struct Logger<D = Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1124:24
[INFO] [stdout]      |
[INFO] [stdout] 1124 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1222:21
[INFO] [stdout]      |
[INFO] [stdout] 1222 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1228:24
[INFO] [stdout]      |
[INFO] [stdout] 1228 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1238:21
[INFO] [stdout]      |
[INFO] [stdout] 1238 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1807:17
[INFO] [stdout]      |
[INFO] [stdout] 1807 |     map_fn: Box<MapErrFn<D::Err, E, Output = E>>,
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MapErrFn<D::Err, E, Output = E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1995:32
[INFO] [stdout]      |
[INFO] [stdout] 1995 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2768:26
[INFO] [stdout]      |
[INFO] [stdout] 2768 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2780:26
[INFO] [stdout]      |
[INFO] [stdout] 2780 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2800 | impl_value_for!(usize, emit_usize);
[INFO] [stdout]      | ----------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2801 | impl_value_for!(isize, emit_isize);
[INFO] [stdout]      | ----------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2802 | impl_value_for!(bool, emit_bool);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2803 | impl_value_for!(char, emit_char);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2804 | impl_value_for!(u8, emit_u8);
[INFO] [stdout]      | ----------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2805 | impl_value_for!(i8, emit_i8);
[INFO] [stdout]      | ----------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2806 | impl_value_for!(u16, emit_u16);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2807 | impl_value_for!(i16, emit_i16);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2808 | impl_value_for!(u32, emit_u32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2809 | impl_value_for!(i32, emit_i32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2810 | impl_value_for!(f32, emit_f32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2811 | impl_value_for!(u64, emit_u64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2812 | impl_value_for!(i64, emit_i64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2813 | impl_value_for!(f64, emit_f64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2815 | impl_value_for!(u128, emit_u128);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2817 | impl_value_for!(i128, emit_i128);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2824:26
[INFO] [stdout]      |
[INFO] [stdout] 2824 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2835:26
[INFO] [stdout]      |
[INFO] [stdout] 2835 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2846:26
[INFO] [stdout]      |
[INFO] [stdout] 2846 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2857:26
[INFO] [stdout]      |
[INFO] [stdout] 2857 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2868:26
[INFO] [stdout]      |
[INFO] [stdout] 2868 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2885:26
[INFO] [stdout]      |
[INFO] [stdout] 2885 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2898:26
[INFO] [stdout]      |
[INFO] [stdout] 2898 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2912:26
[INFO] [stdout]      |
[INFO] [stdout] 2912 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2926:26
[INFO] [stdout]      |
[INFO] [stdout] 2926 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2938:26
[INFO] [stdout]      |
[INFO] [stdout] 2938 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2950:26
[INFO] [stdout]      |
[INFO] [stdout] 2950 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2969:26
[INFO] [stdout]      |
[INFO] [stdout] 2969 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2986:25
[INFO] [stdout]      |
[INFO] [stdout] 2986 |     serializer: &'a mut Serializer,
[INFO] [stdout]      |                         ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3064:26
[INFO] [stdout]      |
[INFO] [stdout] 3064 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3133:59
[INFO] [stdout]      |
[INFO] [stdout] 3133 |     fn serialize(&self, record: &Record, serializer: &mut Serializer)
[INFO] [stdout]      |                                                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3144:26
[INFO] [stdout]      |
[INFO] [stdout] 3144 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3204:26
[INFO] [stdout]      |
[INFO] [stdout] 3204 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3214:27
[INFO] [stdout]      |
[INFO] [stdout] 3214 |         _serializer: &mut Serializer,
[INFO] [stdout]      |                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3224:26
[INFO] [stdout]      |
[INFO] [stdout] 3224 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3238:26
[INFO] [stdout]      |
[INFO] [stdout] 3238 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3251:26
[INFO] [stdout]      |
[INFO] [stdout] 3251 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3264:26
[INFO] [stdout]      |
[INFO] [stdout] 3264 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3274:26
[INFO] [stdout]      |
[INFO] [stdout] 3274 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3316:13
[INFO] [stdout]      |
[INFO] [stdout] 3316 |     pub &'a KV,
[INFO] [stdout]      |             ^^ help: use `dyn`: `dyn KV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3326:20
[INFO] [stdout]      |
[INFO] [stdout] 3326 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3331:20
[INFO] [stdout]      |
[INFO] [stdout] 3331 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3332:15
[INFO] [stdout]      |
[INFO] [stdout] 3332 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3338:15
[INFO] [stdout]      |
[INFO] [stdout] 3338 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3348:26
[INFO] [stdout]      |
[INFO] [stdout] 3348 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3361:26
[INFO] [stdout]      |
[INFO] [stdout] 3361 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3374:26
[INFO] [stdout]      |
[INFO] [stdout] 3374 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3435:24
[INFO] [stdout]      |
[INFO] [stdout] 3435 |         next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3524:32
[INFO] [stdout]      |
[INFO] [stdout] 3524 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3613:22
[INFO] [stdout]      |
[INFO] [stdout] 3613 | pub type Serialize = Value;
[INFO] [stdout]      |                      ^^^^^ help: use `dyn`: `dyn Value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:1991:48
[INFO] [stdout]      |
[INFO] [stdout] 1991 |             MutexDrainError::Drain(ref e) => e.description(),
[INFO] [stdout]      |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:3518:35
[INFO] [stdout]      |
[INFO] [stdout] 3518 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]      |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 73 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "749a78441605a7e875676418f98dc2ffa3ebcaa482c89757857057c83ba2b2de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "749a78441605a7e875676418f98dc2ffa3ebcaa482c89757857057c83ba2b2de", kill_on_drop: false }`
[INFO] [stdout] 749a78441605a7e875676418f98dc2ffa3ebcaa482c89757857057c83ba2b2de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f7bc329383663ee0de6cd41c0c570548c746222158fc76bcec98afe48c7e717
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1f7bc329383663ee0de6cd41c0c570548c746222158fc76bcec98afe48c7e717", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:1251:9
[INFO] [stdout]      |
[INFO] [stdout] 1251 |         try!(write!(f, "Logger{:?}", self.list));
[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/lib.rs:3226:9
[INFO] [stdout]      |
[INFO] [stdout] 3226 |         try!(self.0.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3350:9
[INFO] [stdout]      |
[INFO] [stdout] 3350 |         try!(self.kv.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3351:9
[INFO] [stdout]      |
[INFO] [stdout] 3351 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3363:9
[INFO] [stdout]      |
[INFO] [stdout] 3363 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3364:9
[INFO] [stdout]      |
[INFO] [stdout] 3364 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3376:9
[INFO] [stdout]      |
[INFO] [stdout] 3376 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3384:9
[INFO] [stdout]      |
[INFO] [stdout] 3384 |         try!(write!(f, "("));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3390:21
[INFO] [stdout]      |
[INFO] [stdout] 3390 |                     try!(write!(f, ", "));
[INFO] [stdout]      |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3393:17
[INFO] [stdout]      |
[INFO] [stdout] 3393 |                 try!(write!(f, "{}", key));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3399:13
[INFO] [stdout]      |
[INFO] [stdout] 3399 |             try!(
[INFO] [stdout]      |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3413:9
[INFO] [stdout]      |
[INFO] [stdout] 3413 |         try!(write!(f, ")"));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1079:27
[INFO] [stdout]      |
[INFO] [stdout] 1079 | pub struct Logger<D = Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1124:24
[INFO] [stdout]      |
[INFO] [stdout] 1124 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1222:21
[INFO] [stdout]      |
[INFO] [stdout] 1222 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1228:24
[INFO] [stdout]      |
[INFO] [stdout] 1228 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1238:21
[INFO] [stdout]      |
[INFO] [stdout] 1238 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1807:17
[INFO] [stdout]      |
[INFO] [stdout] 1807 |     map_fn: Box<MapErrFn<D::Err, E, Output = E>>,
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MapErrFn<D::Err, E, Output = E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1995:32
[INFO] [stdout]      |
[INFO] [stdout] 1995 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2768:26
[INFO] [stdout]      |
[INFO] [stdout] 2768 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2780:26
[INFO] [stdout]      |
[INFO] [stdout] 2780 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2800 | impl_value_for!(usize, emit_usize);
[INFO] [stdout]      | ----------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2801 | impl_value_for!(isize, emit_isize);
[INFO] [stdout]      | ----------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2802 | impl_value_for!(bool, emit_bool);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2803 | impl_value_for!(char, emit_char);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2804 | impl_value_for!(u8, emit_u8);
[INFO] [stdout]      | ----------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2805 | impl_value_for!(i8, emit_i8);
[INFO] [stdout]      | ----------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2806 | impl_value_for!(u16, emit_u16);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2807 | impl_value_for!(i16, emit_i16);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2808 | impl_value_for!(u32, emit_u32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2809 | impl_value_for!(i32, emit_i32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2810 | impl_value_for!(f32, emit_f32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2811 | impl_value_for!(u64, emit_u64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2812 | impl_value_for!(i64, emit_i64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2813 | impl_value_for!(f64, emit_f64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2815 | impl_value_for!(u128, emit_u128);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2817 | impl_value_for!(i128, emit_i128);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2824:26
[INFO] [stdout]      |
[INFO] [stdout] 2824 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2835:26
[INFO] [stdout]      |
[INFO] [stdout] 2835 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2846:26
[INFO] [stdout]      |
[INFO] [stdout] 2846 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2857:26
[INFO] [stdout]      |
[INFO] [stdout] 2857 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2868:26
[INFO] [stdout]      |
[INFO] [stdout] 2868 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2885:26
[INFO] [stdout]      |
[INFO] [stdout] 2885 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2898:26
[INFO] [stdout]      |
[INFO] [stdout] 2898 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2912:26
[INFO] [stdout]      |
[INFO] [stdout] 2912 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2926:26
[INFO] [stdout]      |
[INFO] [stdout] 2926 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2938:26
[INFO] [stdout]      |
[INFO] [stdout] 2938 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2950:26
[INFO] [stdout]      |
[INFO] [stdout] 2950 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2969:26
[INFO] [stdout]      |
[INFO] [stdout] 2969 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2986:25
[INFO] [stdout]      |
[INFO] [stdout] 2986 |     serializer: &'a mut Serializer,
[INFO] [stdout]      |                         ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3064:26
[INFO] [stdout]      |
[INFO] [stdout] 3064 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3133:59
[INFO] [stdout]      |
[INFO] [stdout] 3133 |     fn serialize(&self, record: &Record, serializer: &mut Serializer)
[INFO] [stdout]      |                                                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3144:26
[INFO] [stdout]      |
[INFO] [stdout] 3144 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3204:26
[INFO] [stdout]      |
[INFO] [stdout] 3204 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3214:27
[INFO] [stdout]      |
[INFO] [stdout] 3214 |         _serializer: &mut Serializer,
[INFO] [stdout]      |                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3224:26
[INFO] [stdout]      |
[INFO] [stdout] 3224 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3238:26
[INFO] [stdout]      |
[INFO] [stdout] 3238 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3251:26
[INFO] [stdout]      |
[INFO] [stdout] 3251 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3264:26
[INFO] [stdout]      |
[INFO] [stdout] 3264 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3274:26
[INFO] [stdout]      |
[INFO] [stdout] 3274 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3316:13
[INFO] [stdout]      |
[INFO] [stdout] 3316 |     pub &'a KV,
[INFO] [stdout]      |             ^^ help: use `dyn`: `dyn KV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3326:20
[INFO] [stdout]      |
[INFO] [stdout] 3326 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3331:20
[INFO] [stdout]      |
[INFO] [stdout] 3331 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3332:15
[INFO] [stdout]      |
[INFO] [stdout] 3332 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3338:15
[INFO] [stdout]      |
[INFO] [stdout] 3338 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3348:26
[INFO] [stdout]      |
[INFO] [stdout] 3348 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3361:26
[INFO] [stdout]      |
[INFO] [stdout] 3361 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3374:26
[INFO] [stdout]      |
[INFO] [stdout] 3374 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3435:24
[INFO] [stdout]      |
[INFO] [stdout] 3435 |         next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3524:32
[INFO] [stdout]      |
[INFO] [stdout] 3524 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3613:22
[INFO] [stdout]      |
[INFO] [stdout] 3613 | pub type Serialize = Value;
[INFO] [stdout]      |                      ^^^^^ help: use `dyn`: `dyn Value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:1991:48
[INFO] [stdout]      |
[INFO] [stdout] 1991 |             MutexDrainError::Drain(ref e) => e.description(),
[INFO] [stdout]      |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:3518:35
[INFO] [stdout]      |
[INFO] [stdout] 3518 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]      |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 73 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/struct-log-self.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/struct-log-self.rs:25:60
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn serialize(&self, _record: &Record, serializer: &mut Serializer) -> Result {
[INFO] [stdout]    |                                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:1251:9
[INFO] [stdout]      |
[INFO] [stdout] 1251 |         try!(write!(f, "Logger{:?}", self.list));
[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/lib.rs:3226:9
[INFO] [stdout]      |
[INFO] [stdout] 3226 |         try!(self.0.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3350:9
[INFO] [stdout]      |
[INFO] [stdout] 3350 |         try!(self.kv.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3351:9
[INFO] [stdout]      |
[INFO] [stdout] 3351 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3363:9
[INFO] [stdout]      |
[INFO] [stdout] 3363 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3364:9
[INFO] [stdout]      |
[INFO] [stdout] 3364 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3376:9
[INFO] [stdout]      |
[INFO] [stdout] 3376 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3384:9
[INFO] [stdout]      |
[INFO] [stdout] 3384 |         try!(write!(f, "("));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3390:21
[INFO] [stdout]      |
[INFO] [stdout] 3390 |                     try!(write!(f, ", "));
[INFO] [stdout]      |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3393:17
[INFO] [stdout]      |
[INFO] [stdout] 3393 |                 try!(write!(f, "{}", key));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3399:13
[INFO] [stdout]      |
[INFO] [stdout] 3399 |             try!(
[INFO] [stdout]      |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3413:9
[INFO] [stdout]      |
[INFO] [stdout] 3413 |         try!(write!(f, ")"));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1079:27
[INFO] [stdout]      |
[INFO] [stdout] 1079 | pub struct Logger<D = Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1124:24
[INFO] [stdout]      |
[INFO] [stdout] 1124 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1222:21
[INFO] [stdout]      |
[INFO] [stdout] 1222 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1228:24
[INFO] [stdout]      |
[INFO] [stdout] 1228 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1238:21
[INFO] [stdout]      |
[INFO] [stdout] 1238 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1807:17
[INFO] [stdout]      |
[INFO] [stdout] 1807 |     map_fn: Box<MapErrFn<D::Err, E, Output = E>>,
[INFO] [stdout]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MapErrFn<D::Err, E, Output = E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1995:32
[INFO] [stdout]      |
[INFO] [stdout] 1995 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2768:26
[INFO] [stdout]      |
[INFO] [stdout] 2768 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2780:26
[INFO] [stdout]      |
[INFO] [stdout] 2780 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2800 | impl_value_for!(usize, emit_usize);
[INFO] [stdout]      | ----------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2801 | impl_value_for!(isize, emit_isize);
[INFO] [stdout]      | ----------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2802 | impl_value_for!(bool, emit_bool);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2803 | impl_value_for!(char, emit_char);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2804 | impl_value_for!(u8, emit_u8);
[INFO] [stdout]      | ----------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2805 | impl_value_for!(i8, emit_i8);
[INFO] [stdout]      | ----------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2806 | impl_value_for!(u16, emit_u16);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2807 | impl_value_for!(i16, emit_i16);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2808 | impl_value_for!(u32, emit_u32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2809 | impl_value_for!(i32, emit_i32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2810 | impl_value_for!(f32, emit_f32);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2811 | impl_value_for!(u64, emit_u64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2812 | impl_value_for!(i64, emit_i64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2813 | impl_value_for!(f64, emit_f64);
[INFO] [stdout]      | ------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2815 | impl_value_for!(u128, emit_u128);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2792:44
[INFO] [stdout]      |
[INFO] [stdout] 2792 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2817 | impl_value_for!(i128, emit_i128);
[INFO] [stdout]      | --------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in a macro (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/lib.rs:2824:26
[INFO] [stdout]      |
[INFO] [stdout] 2824 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2835:26
[INFO] [stdout]      |
[INFO] [stdout] 2835 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2846:26
[INFO] [stdout]      |
[INFO] [stdout] 2846 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2857:26
[INFO] [stdout]      |
[INFO] [stdout] 2857 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2868:26
[INFO] [stdout]      |
[INFO] [stdout] 2868 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2885:26
[INFO] [stdout]      |
[INFO] [stdout] 2885 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2898:26
[INFO] [stdout]      |
[INFO] [stdout] 2898 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2912:26
[INFO] [stdout]      |
[INFO] [stdout] 2912 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2926:26
[INFO] [stdout]      |
[INFO] [stdout] 2926 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2938:26
[INFO] [stdout]      |
[INFO] [stdout] 2938 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2950:26
[INFO] [stdout]      |
[INFO] [stdout] 2950 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2969:26
[INFO] [stdout]      |
[INFO] [stdout] 2969 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2986:25
[INFO] [stdout]      |
[INFO] [stdout] 2986 |     serializer: &'a mut Serializer,
[INFO] [stdout]      |                         ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3064:26
[INFO] [stdout]      |
[INFO] [stdout] 3064 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3133:59
[INFO] [stdout]      |
[INFO] [stdout] 3133 |     fn serialize(&self, record: &Record, serializer: &mut Serializer)
[INFO] [stdout]      |                                                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3144:26
[INFO] [stdout]      |
[INFO] [stdout] 3144 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3204:26
[INFO] [stdout]      |
[INFO] [stdout] 3204 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3214:27
[INFO] [stdout]      |
[INFO] [stdout] 3214 |         _serializer: &mut Serializer,
[INFO] [stdout]      |                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3224:26
[INFO] [stdout]      |
[INFO] [stdout] 3224 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3238:26
[INFO] [stdout]      |
[INFO] [stdout] 3238 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3251:26
[INFO] [stdout]      |
[INFO] [stdout] 3251 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3264:26
[INFO] [stdout]      |
[INFO] [stdout] 3264 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3274:26
[INFO] [stdout]      |
[INFO] [stdout] 3274 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3316:13
[INFO] [stdout]      |
[INFO] [stdout] 3316 |     pub &'a KV,
[INFO] [stdout]      |             ^^ help: use `dyn`: `dyn KV`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3326:20
[INFO] [stdout]      |
[INFO] [stdout] 3326 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3331:20
[INFO] [stdout]      |
[INFO] [stdout] 3331 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3332:15
[INFO] [stdout]      |
[INFO] [stdout] 3332 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3338:15
[INFO] [stdout]      |
[INFO] [stdout] 3338 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3348:26
[INFO] [stdout]      |
[INFO] [stdout] 3348 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3361:26
[INFO] [stdout]      |
[INFO] [stdout] 3361 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3374:26
[INFO] [stdout]      |
[INFO] [stdout] 3374 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3435:24
[INFO] [stdout]      |
[INFO] [stdout] 3435 |         next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3524:32
[INFO] [stdout]      |
[INFO] [stdout] 3524 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3613:22
[INFO] [stdout]      |
[INFO] [stdout] 3613 | pub type Serialize = Value;
[INFO] [stdout]      |                      ^^^^^ help: use `dyn`: `dyn Value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/tests.rs:162:35
[INFO] [stdout]     |
[INFO] [stdout] 162 |                 _serializer: &mut Serializer,
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:1991:48
[INFO] [stdout]      |
[INFO] [stdout] 1991 |             MutexDrainError::Drain(ref e) => e.description(),
[INFO] [stdout]      |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:3518:35
[INFO] [stdout]      |
[INFO] [stdout] 3518 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]      |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/tests.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |           { 3 + 3; 2};
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/tests.rs:185:22
[INFO] [stdout]     |
[INFO] [stdout] 185 |           "foo" => { 3 + 3; 2},
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 76 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "1f7bc329383663ee0de6cd41c0c570548c746222158fc76bcec98afe48c7e717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f7bc329383663ee0de6cd41c0c570548c746222158fc76bcec98afe48c7e717", kill_on_drop: false }`
[INFO] [stdout] 1f7bc329383663ee0de6cd41c0c570548c746222158fc76bcec98afe48c7e717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 437fd8b044fe45a727b09e2749b83028b957ad089d2b1d6561ba1acd321be6b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "437fd8b044fe45a727b09e2749b83028b957ad089d2b1d6561ba1acd321be6b5", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1251:9
[INFO] [stderr]      |
[INFO] [stderr] 1251 |         try!(write!(f, "Logger{:?}", self.list));
[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/lib.rs:3226:9
[INFO] [stderr]      |
[INFO] [stderr] 3226 |         try!(self.0.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3350:9
[INFO] [stderr]      |
[INFO] [stderr] 3350 |         try!(self.kv.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3351:9
[INFO] [stderr]      |
[INFO] [stderr] 3351 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3363:9
[INFO] [stderr]      |
[INFO] [stderr] 3363 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3364:9
[INFO] [stderr]      |
[INFO] [stderr] 3364 |         try!(self.node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3376:9
[INFO] [stderr]      |
[INFO] [stderr] 3376 |         try!(self.node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3384:9
[INFO] [stderr]      |
[INFO] [stderr] 3384 |         try!(write!(f, "("));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3390:21
[INFO] [stderr]      |
[INFO] [stderr] 3390 |                     try!(write!(f, ", "));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3393:17
[INFO] [stderr]      |
[INFO] [stderr] 3393 |                 try!(write!(f, "{}", key));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3399:13
[INFO] [stderr]      |
[INFO] [stderr] 3399 |             try!(
[INFO] [stderr]      |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3413:9
[INFO] [stderr]      |
[INFO] [stderr] 3413 |         try!(write!(f, ")"));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1079:27
[INFO] [stderr]      |
[INFO] [stderr] 1079 | pub struct Logger<D = Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1124:24
[INFO] [stderr]      |
[INFO] [stderr] 1124 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1222:21
[INFO] [stderr]      |
[INFO] [stderr] 1222 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1228:24
[INFO] [stderr]      |
[INFO] [stderr] 1228 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1238:21
[INFO] [stderr]      |
[INFO] [stderr] 1238 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1807:17
[INFO] [stderr]      |
[INFO] [stderr] 1807 |     map_fn: Box<MapErrFn<D::Err, E, Output = E>>,
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MapErrFn<D::Err, E, Output = E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1995:32
[INFO] [stderr]      |
[INFO] [stderr] 1995 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2768:26
[INFO] [stderr]      |
[INFO] [stderr] 2768 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2780:26
[INFO] [stderr]      |
[INFO] [stderr] 2780 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2800 | impl_value_for!(usize, emit_usize);
[INFO] [stderr]      | ----------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2801 | impl_value_for!(isize, emit_isize);
[INFO] [stderr]      | ----------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2802 | impl_value_for!(bool, emit_bool);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2803 | impl_value_for!(char, emit_char);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2804 | impl_value_for!(u8, emit_u8);
[INFO] [stderr]      | ----------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2805 | impl_value_for!(i8, emit_i8);
[INFO] [stderr]      | ----------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2806 | impl_value_for!(u16, emit_u16);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2807 | impl_value_for!(i16, emit_i16);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2808 | impl_value_for!(u32, emit_u32);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2809 | impl_value_for!(i32, emit_i32);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2810 | impl_value_for!(f32, emit_f32);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2811 | impl_value_for!(u64, emit_u64);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2812 | impl_value_for!(i64, emit_i64);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2813 | impl_value_for!(f64, emit_f64);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2815 | impl_value_for!(u128, emit_u128);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2817 | impl_value_for!(i128, emit_i128);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2824:26
[INFO] [stderr]      |
[INFO] [stderr] 2824 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2835:26
[INFO] [stderr]      |
[INFO] [stderr] 2835 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2846:26
[INFO] [stderr]      |
[INFO] [stderr] 2846 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2857:26
[INFO] [stderr]      |
[INFO] [stderr] 2857 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2868:26
[INFO] [stderr]      |
[INFO] [stderr] 2868 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2885:26
[INFO] [stderr]      |
[INFO] [stderr] 2885 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2898:26
[INFO] [stderr]      |
[INFO] [stderr] 2898 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2912:26
[INFO] [stderr]      |
[INFO] [stderr] 2912 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2926:26
[INFO] [stderr]      |
[INFO] [stderr] 2926 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2938:26
[INFO] [stderr]      |
[INFO] [stderr] 2938 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2950:26
[INFO] [stderr]      |
[INFO] [stderr] 2950 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2969:26
[INFO] [stderr]      |
[INFO] [stderr] 2969 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2986:25
[INFO] [stderr]      |
[INFO] [stderr] 2986 |     serializer: &'a mut Serializer,
[INFO] [stderr]      |                         ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3064:26
[INFO] [stderr]      |
[INFO] [stderr] 3064 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3133:59
[INFO] [stderr]      |
[INFO] [stderr] 3133 |     fn serialize(&self, record: &Record, serializer: &mut Serializer)
[INFO] [stderr]      |                                                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3144:26
[INFO] [stderr]      |
[INFO] [stderr] 3144 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3204:26
[INFO] [stderr]      |
[INFO] [stderr] 3204 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3214:27
[INFO] [stderr]      |
[INFO] [stderr] 3214 |         _serializer: &mut Serializer,
[INFO] [stderr]      |                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3224:26
[INFO] [stderr]      |
[INFO] [stderr] 3224 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3238:26
[INFO] [stderr]      |
[INFO] [stderr] 3238 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3251:26
[INFO] [stderr]      |
[INFO] [stderr] 3251 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3264:26
[INFO] [stderr]      |
[INFO] [stderr] 3264 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3274:26
[INFO] [stderr]      |
[INFO] [stderr] 3274 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3316:13
[INFO] [stderr]      |
[INFO] [stderr] 3316 |     pub &'a KV,
[INFO] [stderr]      |             ^^ help: use `dyn`: `dyn KV`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3326:20
[INFO] [stderr]      |
[INFO] [stderr] 3326 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3331:20
[INFO] [stderr]      |
[INFO] [stderr] 3331 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3332:15
[INFO] [stderr]      |
[INFO] [stderr] 3332 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3338:15
[INFO] [stderr]      |
[INFO] [stderr] 3338 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3348:26
[INFO] [stderr]      |
[INFO] [stderr] 3348 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3361:26
[INFO] [stderr]      |
[INFO] [stderr] 3361 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3374:26
[INFO] [stderr]      |
[INFO] [stderr] 3374 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3435:24
[INFO] [stderr]      |
[INFO] [stderr] 3435 |         next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3524:32
[INFO] [stderr]      |
[INFO] [stderr] 3524 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3613:22
[INFO] [stderr]      |
[INFO] [stderr] 3613 | pub type Serialize = Value;
[INFO] [stderr]      |                      ^^^^^ help: use `dyn`: `dyn Value`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1251:9
[INFO] [stderr]      |
[INFO] [stderr] 1251 |         try!(write!(f, "Logger{:?}", self.list));
[INFO] [stderr]      |         ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]     --> src/lib.rs:1991:48
[INFO] [stderr]      |
[INFO] [stderr] 1991 |             MutexDrainError::Drain(ref e) => e.description(),
[INFO] [stderr]      |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]     --> src/lib.rs:3518:35
[INFO] [stderr]      |
[INFO] [stderr] 3518 |             Error::Io(ref e) => e.description(),
[INFO] [stderr]      |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 73 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3226:9
[INFO] [stderr]      |
[INFO] [stderr] 3226 |         try!(self.0.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3350:9
[INFO] [stderr]      |
[INFO] [stderr] 3350 |         try!(self.kv.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3351:9
[INFO] [stderr]      |
[INFO] [stderr] 3351 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3363:9
[INFO] [stderr]      |
[INFO] [stderr] 3363 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3364:9
[INFO] [stderr]      |
[INFO] [stderr] 3364 |         try!(self.node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3376:9
[INFO] [stderr]      |
[INFO] [stderr] 3376 |         try!(self.node.serialize(record, serializer));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3384:9
[INFO] [stderr]      |
[INFO] [stderr] 3384 |         try!(write!(f, "("));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3390:21
[INFO] [stderr]      |
[INFO] [stderr] 3390 |                     try!(write!(f, ", "));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3393:17
[INFO] [stderr]      |
[INFO] [stderr] 3393 |                 try!(write!(f, "{}", key));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3399:13
[INFO] [stderr]      |
[INFO] [stderr] 3399 |             try!(
[INFO] [stderr]      |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/struct-log-self.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/struct-log-self.rs:25:60
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn serialize(&self, _record: &Record, serializer: &mut Serializer) -> Result {
[INFO] [stderr]    |                                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:3413:9
[INFO] [stderr]      |
[INFO] [stderr] 3413 |         try!(write!(f, ")"));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1079:27
[INFO] [stderr]      |
[INFO] [stderr] 1079 | pub struct Logger<D = Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stderr]      |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1124:24
[INFO] [stderr]      |
[INFO] [stderr] 1124 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1222:21
[INFO] [stderr]      |
[INFO] [stderr] 1222 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1228:24
[INFO] [stderr]      |
[INFO] [stderr] 1228 |                 as Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>,
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1238:21
[INFO] [stderr]      |
[INFO] [stderr] 1238 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1807:17
[INFO] [stderr]      |
[INFO] [stderr] 1807 |     map_fn: Box<MapErrFn<D::Err, E, Output = E>>,
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MapErrFn<D::Err, E, Output = E>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1995:32
[INFO] [stderr]      |
[INFO] [stderr] 1995 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2768:26
[INFO] [stderr]      |
[INFO] [stderr] 2768 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2780:26
[INFO] [stderr]      |
[INFO] [stderr] 2780 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2800 | impl_value_for!(usize, emit_usize);
[INFO] [stderr]      | ----------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2801 | impl_value_for!(isize, emit_isize);
[INFO] [stderr]      | ----------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2802 | impl_value_for!(bool, emit_bool);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2803 | impl_value_for!(char, emit_char);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2804 | impl_value_for!(u8, emit_u8);
[INFO] [stderr]      | ----------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2805 | impl_value_for!(i8, emit_i8);
[INFO] [stderr]      | ----------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2806 | impl_value_for!(u16, emit_u16);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2807 | impl_value_for!(i16, emit_i16);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2808 | impl_value_for!(u32, emit_u32);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2809 | impl_value_for!(i32, emit_i32);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2810 | impl_value_for!(f32, emit_f32);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2811 | impl_value_for!(u64, emit_u64);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2812 | impl_value_for!(i64, emit_i64);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2813 | impl_value_for!(f64, emit_f64);
[INFO] [stderr]      | ------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2815 | impl_value_for!(u128, emit_u128);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2792:44
[INFO] [stderr]      |
[INFO] [stderr] 2792 |                          serializer : &mut Serializer
[INFO] [stderr]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] ...
[INFO] [stderr] 2817 | impl_value_for!(i128, emit_i128);
[INFO] [stderr]      | --------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2824:26
[INFO] [stderr]      |
[INFO] [stderr] 2824 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2835:26
[INFO] [stderr]      |
[INFO] [stderr] 2835 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2846:26
[INFO] [stderr]      |
[INFO] [stderr] 2846 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2857:26
[INFO] [stderr]      |
[INFO] [stderr] 2857 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2868:26
[INFO] [stderr]      |
[INFO] [stderr] 2868 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2885:26
[INFO] [stderr]      |
[INFO] [stderr] 2885 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2898:26
[INFO] [stderr]      |
[INFO] [stderr] 2898 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2912:26
[INFO] [stderr]      |
[INFO] [stderr] 2912 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2926:26
[INFO] [stderr]      |
[INFO] [stderr] 2926 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2938:26
[INFO] [stderr]      |
[INFO] [stderr] 2938 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2950:26
[INFO] [stderr]      |
[INFO] [stderr] 2950 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2969:26
[INFO] [stderr]      |
[INFO] [stderr] 2969 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:2986:25
[INFO] [stderr]      |
[INFO] [stderr] 2986 |     serializer: &'a mut Serializer,
[INFO] [stderr]      |                         ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3064:26
[INFO] [stderr]      |
[INFO] [stderr] 3064 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3133:59
[INFO] [stderr]      |
[INFO] [stderr] 3133 |     fn serialize(&self, record: &Record, serializer: &mut Serializer)
[INFO] [stderr]      |                                                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3144:26
[INFO] [stderr]      |
[INFO] [stderr] 3144 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3204:26
[INFO] [stderr]      |
[INFO] [stderr] 3204 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3214:27
[INFO] [stderr]      |
[INFO] [stderr] 3214 |         _serializer: &mut Serializer,
[INFO] [stderr]      |                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3224:26
[INFO] [stderr]      |
[INFO] [stderr] 3224 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3238:26
[INFO] [stderr]      |
[INFO] [stderr] 3238 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3251:26
[INFO] [stderr]      |
[INFO] [stderr] 3251 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3264:26
[INFO] [stderr]      |
[INFO] [stderr] 3264 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3274:26
[INFO] [stderr]      |
[INFO] [stderr] 3274 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3316:13
[INFO] [stderr]      |
[INFO] [stderr] 3316 |     pub &'a KV,
[INFO] [stderr]      |             ^^ help: use `dyn`: `dyn KV`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3326:20
[INFO] [stderr]      |
[INFO] [stderr] 3326 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3331:20
[INFO] [stderr]      |
[INFO] [stderr] 3331 |     next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3332:15
[INFO] [stderr]      |
[INFO] [stderr] 3332 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3338:15
[INFO] [stderr]      |
[INFO] [stderr] 3338 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3348:26
[INFO] [stderr]      |
[INFO] [stderr] 3348 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3361:26
[INFO] [stderr]      |
[INFO] [stderr] 3361 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3374:26
[INFO] [stderr]      |
[INFO] [stderr] 3374 |         serializer: &mut Serializer,
[INFO] [stderr]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3435:24
[INFO] [stderr]      |
[INFO] [stderr] 3435 |         next_node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3524:32
[INFO] [stderr]      |
[INFO] [stderr] 3524 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]      |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:3613:22
[INFO] [stderr]      |
[INFO] [stderr] 3613 | pub type Serialize = Value;
[INFO] [stderr]      |                      ^^^^^ help: use `dyn`: `dyn Value`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/tests.rs:162:35
[INFO] [stderr]     |
[INFO] [stderr] 162 |                 _serializer: &mut Serializer,
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]     --> src/lib.rs:1991:48
[INFO] [stderr]      |
[INFO] [stderr] 1991 |             MutexDrainError::Drain(ref e) => e.description(),
[INFO] [stderr]      |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]     --> src/lib.rs:3518:35
[INFO] [stderr]      |
[INFO] [stderr] 3518 |             Error::Io(ref e) => e.description(),
[INFO] [stderr]      |                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/tests.rs:183:13
[INFO] [stderr]     |
[INFO] [stderr] 183 |           { 3 + 3; 2};
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused arithmetic operation that must be used
[INFO] [stderr]    --> src/tests.rs:185:22
[INFO] [stderr]     |
[INFO] [stderr] 185 |           "foo" => { 3 + 3; 2},
[INFO] [stderr]     |                      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 76 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slog-9aaa91d0e3899695
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test filter_level_from_str ... ok
[INFO] [stdout] test filter_level_accepts_tests ... ok
[INFO] [stdout] test filter_level_sanity ... ok
[INFO] [stdout] test filter_level_to_string_and_from_str_are_compatible ... ok
[INFO] [stdout] test tests::makers ... ok
[INFO] [stdout] test tests::std_only::multichain ... ok
[INFO] [stdout] test tests::expressions_fmt ... ok
[INFO] [stdout] test tests::logger_to_erased ... ok
[INFO] [stdout] test tests::expressions ... ok
[INFO] [stdout] test level_at_least ... ok
[INFO] [stdout] test level_from_str ... ok
[INFO] [stdout] test tests::logger_by_ref ... ok
[INFO] [stdout] test tests::no_imports::test_slog_o_macro_expansion ... ok
[INFO] [stdout] test tests::no_imports::test_o_macro_expansion ... ok
[INFO] [stdout] test tests::simple_logger_erased ... ok
[INFO] [stdout] test tests::integer_128_types ... ok
[INFO] [stdout] test level_to_string_and_from_str_are_compatible ... ok
[INFO] [stdout] test tests::std_only::logger_fmt_debug_sanity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slog
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/lib.rs - (line 115) ... ignored
[INFO] [stdout] test src/lib.rs - (line 134) ... ignored
[INFO] [stdout] test src/lib.rs - (line 167) ... ignored
[INFO] [stdout] test src/lib.rs - (line 278) ... ignored
[INFO] [stdout] test src/lib.rs - KV (line 3089) ... ignored
[INFO] [stdout] test src/lib.rs - KV (line 3095) ... ignored
[INFO] [stdout] test src/lib.rs - Value (line 2747) ... ok
[INFO] [stdout] test src/lib.rs - (line 261) ... ok
[INFO] [stdout] test src/lib.rs - KV (line 3112) ... ok
[INFO] [stdout] test src/lib.rs - PushFnValue (line 3028) ... ok
[INFO] [stdout] test src/lib.rs - log (line 572) ... ok
[INFO] [stdout] test src/lib.rs - o (line 344) ... ok
[INFO] [stdout] test src/lib.rs - log (line 657) ... ok
[INFO] [stdout] test src/lib.rs - Drain::map (line 1401) ... ok
[INFO] [stdout] test src/lib.rs - Logger<D>::new (line 1176) ... ok
[INFO] [stdout] test src/lib.rs - log (line 556) ... ok
[INFO] [stdout] test src/lib.rs - log (line 587) ... ok
[INFO] [stdout] test src/lib.rs - log (line 629) ... ok
[INFO] [stdout] test src/lib.rs - Drain::is_enabled (line 1344) ... ok
[INFO] [stdout] test src/lib.rs - Logger<D>::root (line 1106) ... ok
[INFO] [stdout] test src/lib.rs - log (line 706) ... ok
[INFO] [stdout] test src/lib.rs - slog_log (line 785) ... ok
[INFO] [stdout] test src/lib.rs - log (line 608) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 6 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "437fd8b044fe45a727b09e2749b83028b957ad089d2b1d6561ba1acd321be6b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "437fd8b044fe45a727b09e2749b83028b957ad089d2b1d6561ba1acd321be6b5", kill_on_drop: false }`
[INFO] [stdout] 437fd8b044fe45a727b09e2749b83028b957ad089d2b1d6561ba1acd321be6b5
