[INFO] fetching crate log4rs-fluentd 0.2.0...
[INFO] testing log4rs-fluentd-0.2.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate log4rs-fluentd 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate log4rs-fluentd 0.2.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log4rs-fluentd 0.2.0
[INFO] finished tweaking crates.io crate log4rs-fluentd 0.2.0
[INFO] tweaked toml for crates.io crate log4rs-fluentd 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded poston v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c443d0766857ef64e15807189f8ed164d0d5e81707e9084ccfe02dfe9262a3a5
[INFO] running `Command { std: "docker" "start" "-a" "c443d0766857ef64e15807189f8ed164d0d5e81707e9084ccfe02dfe9262a3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c443d0766857ef64e15807189f8ed164d0d5e81707e9084ccfe02dfe9262a3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c443d0766857ef64e15807189f8ed164d0d5e81707e9084ccfe02dfe9262a3a5", kill_on_drop: false }`
[INFO] [stdout] c443d0766857ef64e15807189f8ed164d0d5e81707e9084ccfe02dfe9262a3a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] 6cfc0a0741744fa1c61b3b6235e1f57268241f6aab04b2c4c4b2bb186b17ed9f
[INFO] running `Command { std: "docker" "start" "-a" "6cfc0a0741744fa1c61b3b6235e1f57268241f6aab04b2c4c4b2bb186b17ed9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling rmp v0.8.9
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling rmp-serde v0.13.7
[INFO] [stderr]    Compiling serde-value v0.5.3
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]    Compiling log4rs v0.8.3
[INFO] [stderr]    Compiling poston v0.1.6
[INFO] [stderr]    Compiling log4rs-fluentd v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |     encoder: Box<log4rs::encode::Encode>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[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/fluentd.rs:47:57
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |     encoder: Option<Box<log4rs::encode::Encode>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn encoder(mut self, encoder: Box<log4rs::encode::Encode>) -> Self {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fluentd.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |     type Trait = log4rs::append::Append;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::append::Append`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fluentd.rs:135:126
[INFO] [stdout]     |
[INFO] [stdout] 135 | ...rs) -> Result<Box<Self::Trait>, Box<Error + Sync + Send>> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.90s
[INFO] running `Command { std: "docker" "inspect" "6cfc0a0741744fa1c61b3b6235e1f57268241f6aab04b2c4c4b2bb186b17ed9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cfc0a0741744fa1c61b3b6235e1f57268241f6aab04b2c4c4b2bb186b17ed9f", kill_on_drop: false }`
[INFO] [stdout] 6cfc0a0741744fa1c61b3b6235e1f57268241f6aab04b2c4c4b2bb186b17ed9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cec5ed6bbe27763df16fe6d3137d0c5e0f86c1b5280219f2545502b0075ca986
[INFO] running `Command { std: "docker" "start" "-a" "cec5ed6bbe27763df16fe6d3137d0c5e0f86c1b5280219f2545502b0075ca986", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |     encoder: Box<log4rs::encode::Encode>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[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/fluentd.rs:47:57
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |     encoder: Option<Box<log4rs::encode::Encode>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn encoder(mut self, encoder: Box<log4rs::encode::Encode>) -> Self {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fluentd.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |     type Trait = log4rs::append::Append;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::append::Append`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fluentd.rs:135:126
[INFO] [stdout]     |
[INFO] [stdout] 135 | ...rs) -> Result<Box<Self::Trait>, Box<Error + Sync + Send>> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling log4rs-fluentd v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |     encoder: Box<log4rs::encode::Encode>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[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/fluentd.rs:47:57
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:62:25
[INFO] [stdout]    |
[INFO] [stdout] 62 |     encoder: Option<Box<log4rs::encode::Encode>>,
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fluentd.rs:68:43
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn encoder(mut self, encoder: Box<log4rs::encode::Encode>) -> Self {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fluentd.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |     type Trait = log4rs::append::Append;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::append::Append`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fluentd.rs:135:126
[INFO] [stdout]     |
[INFO] [stdout] 135 | ...rs) -> Result<Box<Self::Trait>, Box<Error + Sync + Send>> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.57s
[INFO] running `Command { std: "docker" "inspect" "cec5ed6bbe27763df16fe6d3137d0c5e0f86c1b5280219f2545502b0075ca986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec5ed6bbe27763df16fe6d3137d0c5e0f86c1b5280219f2545502b0075ca986", kill_on_drop: false }`
[INFO] [stdout] cec5ed6bbe27763df16fe6d3137d0c5e0f86c1b5280219f2545502b0075ca986
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", 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] 31c4824b513bc5b370d16228a8097e0dfdbeca850cecac399a48ccacc5b0afdf
[INFO] running `Command { std: "docker" "start" "-a" "31c4824b513bc5b370d16228a8097e0dfdbeca850cecac399a48ccacc5b0afdf", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fluentd.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |     encoder: Box<log4rs::encode::Encode>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[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/fluentd.rs:47:57
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fluentd.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |     encoder: Option<Box<log4rs::encode::Encode>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fluentd.rs:68:43
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn encoder(mut self, encoder: Box<log4rs::encode::Encode>) -> Self {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fluentd.rs:132:18
[INFO] [stderr]     |
[INFO] [stderr] 132 |     type Trait = log4rs::append::Append;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::append::Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fluentd.rs:135:126
[INFO] [stderr]     |
[INFO] [stderr] 135 | ...rs) -> Result<Box<Self::Trait>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fluentd.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |     encoder: Box<log4rs::encode::Encode>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[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/fluentd.rs:47:57
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn append(&self, record: &Record) -> Result<(), Box<Error + Sync + Send>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fluentd.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |     encoder: Option<Box<log4rs::encode::Encode>>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fluentd.rs:68:43
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn encoder(mut self, encoder: Box<log4rs::encode::Encode>) -> Self {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::encode::Encode`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fluentd.rs:132:18
[INFO] [stderr]     |
[INFO] [stderr] 132 |     type Trait = log4rs::append::Append;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn log4rs::append::Append`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fluentd.rs:135:126
[INFO] [stderr]     |
[INFO] [stderr] 135 | ...rs) -> Result<Box<Self::Trait>, Box<Error + Sync + Send>> {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/log4rs_fluentd-e7bfa6a97d481876
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log4rs-fluentd
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31c4824b513bc5b370d16228a8097e0dfdbeca850cecac399a48ccacc5b0afdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c4824b513bc5b370d16228a8097e0dfdbeca850cecac399a48ccacc5b0afdf", kill_on_drop: false }`
[INFO] [stdout] 31c4824b513bc5b370d16228a8097e0dfdbeca850cecac399a48ccacc5b0afdf