[INFO] fetching crate slog 2.7.0...
[INFO] checking slog-2.7.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate slog 2.7.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate slog 2.7.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking crates.io crate slog 2.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate slog 2.7.0
[INFO] tweaked toml for crates.io crate slog 2.7.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate slog 2.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded erased-serde v0.3.3
[INFO] [stderr]   Downloaded serde v1.0.70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3219ba8eb65fd141693655173e747d897ba63f22794424600fd18f1d6c14ef54
[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" "3219ba8eb65fd141693655173e747d897ba63f22794424600fd18f1d6c14ef54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3219ba8eb65fd141693655173e747d897ba63f22794424600fd18f1d6c14ef54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3219ba8eb65fd141693655173e747d897ba63f22794424600fd18f1d6c14ef54", kill_on_drop: false }`
[INFO] [stdout] 3219ba8eb65fd141693655173e747d897ba63f22794424600fd18f1d6c14ef54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 364996fbc61d97f94d01a9e6d23196be03259588a816aaa1b80a1e404da0fab9
[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" "364996fbc61d97f94d01a9e6d23196be03259588a816aaa1b80a1e404da0fab9", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1109:27
[INFO] [stdout]      |
[INFO] [stdout] 1109 | 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:1154:24
[INFO] [stdout]      |
[INFO] [stdout] 1154 |                 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:1252:21
[INFO] [stdout]      |
[INFO] [stdout] 1252 |     ) -> 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:1258:24
[INFO] [stdout]      |
[INFO] [stdout] 1258 |                 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:1268:21
[INFO] [stdout]      |
[INFO] [stdout] 1268 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:1281:9
[INFO] [stdout]      |
[INFO] [stdout] 1281 |         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: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1837:17
[INFO] [stdout]      |
[INFO] [stdout] 1837 |     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:2025:32
[INFO] [stdout]      |
[INFO] [stdout] 2025 |     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:2726:49
[INFO] [stdout]      |
[INFO] [stdout] 2726 |     fn emit_error(&mut self, key: Key, error: &(std::error::Error + 'static)) -> Result {
[INFO] [stdout]      |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2752:32
[INFO] [stdout]      |
[INFO] [stdout] 2752 | struct ErrorAsFmt<'a>(pub &'a (std::error::Error + 'static));
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2839:26
[INFO] [stdout]      |
[INFO] [stdout] 2839 |         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:2851:26
[INFO] [stdout]      |
[INFO] [stdout] 2851 |         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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2871 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2872 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2873 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2874 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2875 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2876 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2877 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2878 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2879 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2880 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2881 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2882 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2883 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2884 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2886 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2888 | 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:2895:26
[INFO] [stdout]      |
[INFO] [stdout] 2895 |         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:2906:26
[INFO] [stdout]      |
[INFO] [stdout] 2906 |         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:2917:26
[INFO] [stdout]      |
[INFO] [stdout] 2917 |         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:2928:26
[INFO] [stdout]      |
[INFO] [stdout] 2928 |         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:2939:26
[INFO] [stdout]      |
[INFO] [stdout] 2939 |         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:2956:26
[INFO] [stdout]      |
[INFO] [stdout] 2956 |         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:2983:26
[INFO] [stdout]      |
[INFO] [stdout] 2983 |         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:2997:26
[INFO] [stdout]      |
[INFO] [stdout] 2997 |         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:3009:26
[INFO] [stdout]      |
[INFO] [stdout] 3009 |         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:3021:26
[INFO] [stdout]      |
[INFO] [stdout] 3021 |         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:3033:26
[INFO] [stdout]      |
[INFO] [stdout] 3033 |         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:3052:26
[INFO] [stdout]      |
[INFO] [stdout] 3052 |         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:3069:25
[INFO] [stdout]      |
[INFO] [stdout] 3069 |     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:3147:26
[INFO] [stdout]      |
[INFO] [stdout] 3147 |         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:3179:26
[INFO] [stdout]      |
[INFO] [stdout] 3179 |         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:3243:59
[INFO] [stdout]      |
[INFO] [stdout] 3243 |     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:3254:26
[INFO] [stdout]      |
[INFO] [stdout] 3254 |         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:3314:26
[INFO] [stdout]      |
[INFO] [stdout] 3314 |         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:3324:27
[INFO] [stdout]      |
[INFO] [stdout] 3324 |         _serializer: &mut Serializer,
[INFO] [stdout]      |                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3336:9
[INFO] [stdout]      |
[INFO] [stdout] 3336 |         try!(self.0.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3334:26
[INFO] [stdout]      |
[INFO] [stdout] 3334 |         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: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:3384:26
[INFO] [stdout]      |
[INFO] [stdout] 3384 |         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:3426:13
[INFO] [stdout]      |
[INFO] [stdout] 3426 |     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:3436:20
[INFO] [stdout]      |
[INFO] [stdout] 3436 |     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:3441:20
[INFO] [stdout]      |
[INFO] [stdout] 3441 |     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:3442:15
[INFO] [stdout]      |
[INFO] [stdout] 3442 |     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:3448:15
[INFO] [stdout]      |
[INFO] [stdout] 3448 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3460:9
[INFO] [stdout]      |
[INFO] [stdout] 3460 |         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:3461:9
[INFO] [stdout]      |
[INFO] [stdout] 3461 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3458:26
[INFO] [stdout]      |
[INFO] [stdout] 3458 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3473:9
[INFO] [stdout]      |
[INFO] [stdout] 3473 |         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:3474:9
[INFO] [stdout]      |
[INFO] [stdout] 3474 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3471:26
[INFO] [stdout]      |
[INFO] [stdout] 3471 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3486:9
[INFO] [stdout]      |
[INFO] [stdout] 3486 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3484:26
[INFO] [stdout]      |
[INFO] [stdout] 3484 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3494:9
[INFO] [stdout]      |
[INFO] [stdout] 3494 |         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:3509:13
[INFO] [stdout]      |
[INFO] [stdout] 3509 |             try!(
[INFO] [stdout]      |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3523:9
[INFO] [stdout]      |
[INFO] [stdout] 3523 |         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:3500:21
[INFO] [stdout]      |
[INFO] [stdout] 3500 |                     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:3503:17
[INFO] [stdout]      |
[INFO] [stdout] 3503 |                 try!(write!(f, "{}", key));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3545:24
[INFO] [stdout]      |
[INFO] [stdout] 3545 |         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:3634:32
[INFO] [stdout]      |
[INFO] [stdout] 3634 |     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:3723:22
[INFO] [stdout]      |
[INFO] [stdout] 3723 | 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:2021:48
[INFO] [stdout]      |
[INFO] [stdout] 2021 |             MutexDrainError::Drain(ref e) => e.description(),
[INFO] [stdout]      |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1109:27
[INFO] [stdout]      |
[INFO] [stdout] 1109 | 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: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]     --> src/lib.rs:3628:35
[INFO] [stdout]      |
[INFO] [stdout] 3628 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]      |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1154:24
[INFO] [stdout]      |
[INFO] [stdout] 1154 |                 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:1252:21
[INFO] [stdout]      |
[INFO] [stdout] 1252 |     ) -> 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:1258:24
[INFO] [stdout]      |
[INFO] [stdout] 1258 |                 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:1268:21
[INFO] [stdout]      |
[INFO] [stdout] 1268 |     ) -> Logger<Arc<SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>>>
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeDrain<Ok = (), Err = Never>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:1281:9
[INFO] [stdout]      |
[INFO] [stdout] 1281 |         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: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:1837:17
[INFO] [stdout]      |
[INFO] [stdout] 1837 |     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:2025:32
[INFO] [stdout]      |
[INFO] [stdout] 2025 |     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:2726:49
[INFO] [stdout]      |
[INFO] [stdout] 2726 |     fn emit_error(&mut self, key: Key, error: &(std::error::Error + 'static)) -> Result {
[INFO] [stdout]      |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2752:32
[INFO] [stdout]      |
[INFO] [stdout] 2752 | struct ErrorAsFmt<'a>(pub &'a (std::error::Error + 'static));
[INFO] [stdout]      |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:2839:26
[INFO] [stdout]      |
[INFO] [stdout] 2839 |         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:2851:26
[INFO] [stdout]      |
[INFO] [stdout] 2851 |         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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2871 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2872 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2873 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2874 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2875 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2876 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2877 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2878 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2879 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2880 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2881 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2882 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2883 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2884 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2886 | 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:2863:44
[INFO] [stdout]      |
[INFO] [stdout] 2863 |                          serializer : &mut Serializer
[INFO] [stdout]      |                                            ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] ...
[INFO] [stdout] 2888 | 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:2895:26
[INFO] [stdout]      |
[INFO] [stdout] 2895 |         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:2906:26
[INFO] [stdout]      |
[INFO] [stdout] 2906 |         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:2917:26
[INFO] [stdout]      |
[INFO] [stdout] 2917 |         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:2928:26
[INFO] [stdout]      |
[INFO] [stdout] 2928 |         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:2939:26
[INFO] [stdout]      |
[INFO] [stdout] 2939 |         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:2956:26
[INFO] [stdout]      |
[INFO] [stdout] 2956 |         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:2983:26
[INFO] [stdout]      |
[INFO] [stdout] 2983 |         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:2997:26
[INFO] [stdout]      |
[INFO] [stdout] 2997 |         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:3009:26
[INFO] [stdout]      |
[INFO] [stdout] 3009 |         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:3021:26
[INFO] [stdout]      |
[INFO] [stdout] 3021 |         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:3033:26
[INFO] [stdout]      |
[INFO] [stdout] 3033 |         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:3052:26
[INFO] [stdout]      |
[INFO] [stdout] 3052 |         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:3069:25
[INFO] [stdout]      |
[INFO] [stdout] 3069 |     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:3147:26
[INFO] [stdout]      |
[INFO] [stdout] 3147 |         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:3179:26
[INFO] [stdout]      |
[INFO] [stdout] 3179 |         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:3243:59
[INFO] [stdout]      |
[INFO] [stdout] 3243 |     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:3254:26
[INFO] [stdout]      |
[INFO] [stdout] 3254 |         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:3314:26
[INFO] [stdout]      |
[INFO] [stdout] 3314 |         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:3324:27
[INFO] [stdout]      |
[INFO] [stdout] 3324 |         _serializer: &mut Serializer,
[INFO] [stdout]      |                           ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3336:9
[INFO] [stdout]      |
[INFO] [stdout] 3336 |         try!(self.0.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3334:26
[INFO] [stdout]      |
[INFO] [stdout] 3334 |         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: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:3384:26
[INFO] [stdout]      |
[INFO] [stdout] 3384 |         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:3426:13
[INFO] [stdout]      |
[INFO] [stdout] 3426 |     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:3436:20
[INFO] [stdout]      |
[INFO] [stdout] 3436 |     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:3441:20
[INFO] [stdout]      |
[INFO] [stdout] 3441 |     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:3442:15
[INFO] [stdout]      |
[INFO] [stdout] 3442 |     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:3448:15
[INFO] [stdout]      |
[INFO] [stdout] 3448 |     node: Arc<SendSyncRefUnwindSafeKV + 'static>,
[INFO] [stdout]      |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn SendSyncRefUnwindSafeKV + 'static`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3460:9
[INFO] [stdout]      |
[INFO] [stdout] 3460 |         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:3461:9
[INFO] [stdout]      |
[INFO] [stdout] 3461 |         try!(self.next_node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3458:26
[INFO] [stdout]      |
[INFO] [stdout] 3458 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3473:9
[INFO] [stdout]      |
[INFO] [stdout] 3473 |         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:3474:9
[INFO] [stdout]      |
[INFO] [stdout] 3474 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3471:26
[INFO] [stdout]      |
[INFO] [stdout] 3471 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3486:9
[INFO] [stdout]      |
[INFO] [stdout] 3486 |         try!(self.node.serialize(record, serializer));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3484:26
[INFO] [stdout]      |
[INFO] [stdout] 3484 |         serializer: &mut Serializer,
[INFO] [stdout]      |                          ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3494:9
[INFO] [stdout]      |
[INFO] [stdout] 3494 |         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:3509:13
[INFO] [stdout]      |
[INFO] [stdout] 3509 |             try!(
[INFO] [stdout]      |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/lib.rs:3523:9
[INFO] [stdout]      |
[INFO] [stdout] 3523 |         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:3500:21
[INFO] [stdout]      |
[INFO] [stdout] 3500 |                     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:3503:17
[INFO] [stdout]      |
[INFO] [stdout] 3503 |                 try!(write!(f, "{}", key));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/lib.rs:3545:24
[INFO] [stdout]      |
[INFO] [stdout] 3545 |         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:3634:32
[INFO] [stdout]      |
[INFO] [stdout] 3634 |     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:3723:22
[INFO] [stdout]      |
[INFO] [stdout] 3723 | 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:73:36
[INFO] [stdout]    |
[INFO] [stdout] 73 |         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/tests.rs:248:35
[INFO] [stdout]     |
[INFO] [stdout] 248 |                 _serializer: &mut Serializer,
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::cell::Cell`
[INFO] [stdout]    --> src/tests.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |     use core::cell::Cell;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 77 warnings emitted
[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:2021:48
[INFO] [stdout]      |
[INFO] [stdout] 2021 |             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:3628:35
[INFO] [stdout]      |
[INFO] [stdout] 3628 |             Error::Io(ref e) => e.description(),
[INFO] [stdout]      |                                   ^^^^^^^^^^^
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/tests.rs:408:9
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let x: Never = panic!("Can't actually construct a Never type here!");
[INFO] [stdout]     |                        ----------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 408 |         let y = x.clone();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/tests.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let x: Never = panic!("Can't actually construct a Never type here!");
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/tests.rs:408:13
[INFO] [stdout]     |
[INFO] [stdout] 408 |         let y = x.clone();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tab`
[INFO] [stdout]    --> src/tests.rs:418:9
[INFO] [stdout]     |
[INFO] [stdout] 418 |     let tab: HashSet<Key> = ["foo"].iter().map(|&k| k.into()).collect();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_tab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]    --> src/tests.rs:319:40
[INFO] [stdout]     |
[INFO] [stdout] 319 |         fn log(&self, record: &Record, values: &OwnedKVList) -> Result<(), Never> {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused arithmetic operation that must be used
[INFO] [stdout]    --> src/tests.rs:269:13
[INFO] [stdout]     |
[INFO] [stdout] 269 |           { 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:271:22
[INFO] [stdout]     |
[INFO] [stdout] 271 |           "foo" => { 3 + 3; 2},
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 87 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
[INFO] running `Command { std: "docker" "inspect" "364996fbc61d97f94d01a9e6d23196be03259588a816aaa1b80a1e404da0fab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "364996fbc61d97f94d01a9e6d23196be03259588a816aaa1b80a1e404da0fab9", kill_on_drop: false }`
[INFO] [stdout] 364996fbc61d97f94d01a9e6d23196be03259588a816aaa1b80a1e404da0fab9