[INFO] cloning repository https://github.com/nharring/kv_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nharring/kv_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnharring%2Fkv_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnharring%2Fkv_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 994de072c08357a136bc7d70bee213cbe638f6b4
[INFO] testing nharring/kv_server against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnharring%2Fkv_server" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nharring/kv_server on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nharring/kv_server
[INFO] finished tweaking git repo https://github.com/nharring/kv_server
[INFO] tweaked toml for git repo https://github.com/nharring/kv_server written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/nharring/kv_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 390a1e849b4a0d67f773dd6182af8cbf9352aac16dece58e3e61685e129545cb
[INFO] running `Command { std: "docker" "start" "-a" "390a1e849b4a0d67f773dd6182af8cbf9352aac16dece58e3e61685e129545cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "390a1e849b4a0d67f773dd6182af8cbf9352aac16dece58e3e61685e129545cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390a1e849b4a0d67f773dd6182af8cbf9352aac16dece58e3e61685e129545cb", kill_on_drop: false }`
[INFO] [stdout] 390a1e849b4a0d67f773dd6182af8cbf9352aac16dece58e3e61685e129545cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 264516b6b2d111ca259b2540a95440b087915cdeab3b62f7d97e768a6a1ea0a6
[INFO] running `Command { std: "docker" "start" "-a" "264516b6b2d111ca259b2540a95440b087915cdeab3b62f7d97e768a6a1ea0a6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.28
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling try_from v0.2.2
[INFO] [stderr]    Compiling integer-encoding v1.0.3
[INFO] [stderr]    Compiling threadpool v1.4.1
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling unicode-segmentation v1.1.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling thrift v0.0.4
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling textwrap v0.6.0
[INFO] [stderr]    Compiling clap v2.25.1
[INFO] [stderr]    Compiling kv_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ServiceException`
[INFO] [stdout]   --> src/main.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 | use kv_server::{KeyNotFound, ServiceException};
[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]   --> src/kv_server.rs:49:45
[INFO] [stdout]    |
[INFO] [stdout] 49 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stdout] 49 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kv_server.rs:75:52
[INFO] [stdout]    |
[INFO] [stdout] 75 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 75 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:134:45
[INFO] [stdout]     |
[INFO] [stdout] 134 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 134 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stdout] 134 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:166:52
[INFO] [stdout]     |
[INFO] [stdout] 166 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 166 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:234:45
[INFO] [stdout]     |
[INFO] [stdout] 234 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 234 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stdout] 234 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:266:52
[INFO] [stdout]     |
[INFO] [stdout] 266 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 266 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 266 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:325:36
[INFO] [stdout]     |
[INFO] [stdout] 325 |   fn i_prot_mut(&mut self) -> &mut TInputProtocol { &mut self._i_prot }
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 325 -   fn i_prot_mut(&mut self) -> &mut TInputProtocol { &mut self._i_prot }
[INFO] [stdout] 325 +   fn i_prot_mut(&mut self) -> &mut dyn TInputProtocol { &mut self._i_prot }
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:326:36
[INFO] [stdout]     |
[INFO] [stdout] 326 |   fn o_prot_mut(&mut self) -> &mut TOutputProtocol { &mut self._o_prot }
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 326 -   fn o_prot_mut(&mut self) -> &mut TOutputProtocol { &mut self._o_prot }
[INFO] [stdout] 326 +   fn o_prot_mut(&mut self) -> &mut dyn TOutputProtocol { &mut self._o_prot }
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:465:73
[INFO] [stdout]     |
[INFO] [stdout] 465 |   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 465 -   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 465 +   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:465:102
[INFO] [stdout]     |
[INFO] [stdout] 465 |   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 465 -   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 465 +   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:468:73
[INFO] [stdout]     |
[INFO] [stdout] 468 |   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 -   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 468 +   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:468:102
[INFO] [stdout]     |
[INFO] [stdout] 468 |   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 -   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 468 +   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:471:73
[INFO] [stdout]     |
[INFO] [stdout] 471 |   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 471 -   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 471 +   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:471:102
[INFO] [stdout]     |
[INFO] [stdout] 471 |   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 471 -   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 471 +   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:474:73
[INFO] [stdout]     |
[INFO] [stdout] 474 |   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 474 -   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 474 +   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:474:102
[INFO] [stdout]     |
[INFO] [stdout] 474 |   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 474 -   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 474 +   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:482:107
[INFO] [stdout]     |
[INFO] [stdout] 482 |   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 482 -   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 482 +   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:482:136
[INFO] [stdout]     |
[INFO] [stdout] 482 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 482 -   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 482 +   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:545:107
[INFO] [stdout]     |
[INFO] [stdout] 545 |   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 545 -   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 545 +   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:545:136
[INFO] [stdout]     |
[INFO] [stdout] 545 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 545 -   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 545 +   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:613:107
[INFO] [stdout]     |
[INFO] [stdout] 613 |   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 613 -   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 613 +   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:613:136
[INFO] [stdout]     |
[INFO] [stdout] 613 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 613 -   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 613 +   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:681:107
[INFO] [stdout]     |
[INFO] [stdout] 681 |   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 681 -   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 681 +   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:681:136
[INFO] [stdout]     |
[INFO] [stdout] 681 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 681 -   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 681 +   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:721:34
[INFO] [stdout]     |
[INFO] [stdout] 721 |   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 721 -   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 721 +   fn process(&self, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:721:63
[INFO] [stdout]     |
[INFO] [stdout] 721 |   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 721 -   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 721 +   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:763:41
[INFO] [stdout]     |
[INFO] [stdout] 763 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 763 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stdout] 763 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:790:48
[INFO] [stdout]     |
[INFO] [stdout] 790 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 790 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 790 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:812:41
[INFO] [stdout]     |
[INFO] [stdout] 812 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 812 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stdout] 812 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:844:48
[INFO] [stdout]     |
[INFO] [stdout] 844 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 844 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 844 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:894:41
[INFO] [stdout]     |
[INFO] [stdout] 894 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 894 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stdout] 894 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:921:48
[INFO] [stdout]     |
[INFO] [stdout] 921 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 921 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 921 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:944:41
[INFO] [stdout]     |
[INFO] [stdout] 944 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 944 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stdout] 944 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:982:48
[INFO] [stdout]     |
[INFO] [stdout] 982 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 982 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 982 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1042:41
[INFO] [stdout]      |
[INFO] [stdout] 1042 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1042 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stdout] 1042 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1069:48
[INFO] [stdout]      |
[INFO] [stdout] 1069 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1069 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1069 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1092:41
[INFO] [stdout]      |
[INFO] [stdout] 1092 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1092 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stdout] 1092 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1130:48
[INFO] [stdout]      |
[INFO] [stdout] 1130 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1130 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1130 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1190:41
[INFO] [stdout]      |
[INFO] [stdout] 1190 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1190 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stdout] 1190 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1217:48
[INFO] [stdout]      |
[INFO] [stdout] 1217 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1217 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1217 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1237:41
[INFO] [stdout]      |
[INFO] [stdout] 1237 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1237 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stdout] 1237 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1256:48
[INFO] [stdout]      |
[INFO] [stdout] 1256 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1256 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1256 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[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/kv_server.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 |     self.description().fmt(f)
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` 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/kv_server.rs:213:10
[INFO] [stdout]     |
[INFO] [stdout] 213 |     self.description().fmt(f)
[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/kv_server.rs:511:27
[INFO] [stdout]     |
[INFO] [stdout] 511 |                   usr_err.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/kv_server.rs:532:19
[INFO] [stdout]     |
[INFO] [stdout] 532 |                 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/kv_server.rs:579:27
[INFO] [stdout]     |
[INFO] [stdout] 579 |                   usr_err.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/kv_server.rs:600:19
[INFO] [stdout]     |
[INFO] [stdout] 600 |                 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/kv_server.rs:647:27
[INFO] [stdout]     |
[INFO] [stdout] 647 |                   usr_err.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/kv_server.rs:668:19
[INFO] [stdout]     |
[INFO] [stdout] 668 |                 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/kv_server.rs:705:19
[INFO] [stdout]     |
[INFO] [stdout] 705 |                 e.description()
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let i_prot_fact: Box<TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 -     let i_prot_fact: Box<TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stdout] 39 +     let i_prot_fact: Box<dyn TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let o_prot_fact: Box<TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     let o_prot_fact: Box<TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stdout] 42 +     let o_prot_fact: Box<dyn TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/kv_server.rs:228:10
[INFO] [stdout]     |
[INFO] [stdout] 228 |   pub fn new<F1, F2>(key: F1, value: F2) -> KVObject where F1: Into<Option<String>>, F2: Into<Option<String>> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/kv_server.rs:319:10
[INFO] [stdout]     |
[INFO] [stdout] 319 |   pub fn new(input_protocol: IP, output_protocol: OP) -> KVServerSyncClient<IP, OP> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 56 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "264516b6b2d111ca259b2540a95440b087915cdeab3b62f7d97e768a6a1ea0a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264516b6b2d111ca259b2540a95440b087915cdeab3b62f7d97e768a6a1ea0a6", kill_on_drop: false }`
[INFO] [stdout] 264516b6b2d111ca259b2540a95440b087915cdeab3b62f7d97e768a6a1ea0a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2aaf68b9fb13e2c5aeeaa0ddcbaaabfbaf03d112b3925b93705116a33dd9afda
[INFO] running `Command { std: "docker" "start" "-a" "2aaf68b9fb13e2c5aeeaa0ddcbaaabfbaf03d112b3925b93705116a33dd9afda", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling kv_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ServiceException`
[INFO] [stdout]   --> src/main.rs:18:30
[INFO] [stdout]    |
[INFO] [stdout] 18 | use kv_server::{KeyNotFound, ServiceException};
[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]   --> src/kv_server.rs:49:45
[INFO] [stdout]    |
[INFO] [stdout] 49 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 49 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stdout] 49 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/kv_server.rs:75:52
[INFO] [stdout]    |
[INFO] [stdout] 75 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 75 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 75 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:134:45
[INFO] [stdout]     |
[INFO] [stdout] 134 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 134 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stdout] 134 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:166:52
[INFO] [stdout]     |
[INFO] [stdout] 166 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 166 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:234:45
[INFO] [stdout]     |
[INFO] [stdout] 234 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 234 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stdout] 234 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:266:52
[INFO] [stdout]     |
[INFO] [stdout] 266 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 266 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 266 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:325:36
[INFO] [stdout]     |
[INFO] [stdout] 325 |   fn i_prot_mut(&mut self) -> &mut TInputProtocol { &mut self._i_prot }
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 325 -   fn i_prot_mut(&mut self) -> &mut TInputProtocol { &mut self._i_prot }
[INFO] [stdout] 325 +   fn i_prot_mut(&mut self) -> &mut dyn TInputProtocol { &mut self._i_prot }
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:326:36
[INFO] [stdout]     |
[INFO] [stdout] 326 |   fn o_prot_mut(&mut self) -> &mut TOutputProtocol { &mut self._o_prot }
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 326 -   fn o_prot_mut(&mut self) -> &mut TOutputProtocol { &mut self._o_prot }
[INFO] [stdout] 326 +   fn o_prot_mut(&mut self) -> &mut dyn TOutputProtocol { &mut self._o_prot }
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:465:73
[INFO] [stdout]     |
[INFO] [stdout] 465 |   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 465 -   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 465 +   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:465:102
[INFO] [stdout]     |
[INFO] [stdout] 465 |   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 465 -   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 465 +   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:468:73
[INFO] [stdout]     |
[INFO] [stdout] 468 |   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 -   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 468 +   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:468:102
[INFO] [stdout]     |
[INFO] [stdout] 468 |   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 468 -   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 468 +   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:471:73
[INFO] [stdout]     |
[INFO] [stdout] 471 |   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 471 -   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 471 +   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:471:102
[INFO] [stdout]     |
[INFO] [stdout] 471 |   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 471 -   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 471 +   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:474:73
[INFO] [stdout]     |
[INFO] [stdout] 474 |   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 474 -   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 474 +   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:474:102
[INFO] [stdout]     |
[INFO] [stdout] 474 |   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stdout]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 474 -   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 474 +   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:482:107
[INFO] [stdout]     |
[INFO] [stdout] 482 |   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 482 -   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 482 +   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:482:136
[INFO] [stdout]     |
[INFO] [stdout] 482 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 482 -   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 482 +   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:545:107
[INFO] [stdout]     |
[INFO] [stdout] 545 |   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 545 -   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 545 +   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:545:136
[INFO] [stdout]     |
[INFO] [stdout] 545 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 545 -   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 545 +   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:613:107
[INFO] [stdout]     |
[INFO] [stdout] 613 |   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 613 -   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 613 +   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:613:136
[INFO] [stdout]     |
[INFO] [stdout] 613 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 613 -   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 613 +   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:681:107
[INFO] [stdout]     |
[INFO] [stdout] 681 |   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 681 -   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 681 +   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:681:136
[INFO] [stdout]     |
[INFO] [stdout] 681 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 681 -   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 681 +   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:721:34
[INFO] [stdout]     |
[INFO] [stdout] 721 |   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 721 -   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 721 +   fn process(&self, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:721:63
[INFO] [stdout]     |
[INFO] [stdout] 721 |   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 721 -   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 721 +   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:763:41
[INFO] [stdout]     |
[INFO] [stdout] 763 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 763 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stdout] 763 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:790:48
[INFO] [stdout]     |
[INFO] [stdout] 790 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 790 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 790 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:812:41
[INFO] [stdout]     |
[INFO] [stdout] 812 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 812 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stdout] 812 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:844:48
[INFO] [stdout]     |
[INFO] [stdout] 844 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 844 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 844 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:894:41
[INFO] [stdout]     |
[INFO] [stdout] 894 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 894 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stdout] 894 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:921:48
[INFO] [stdout]     |
[INFO] [stdout] 921 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 921 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 921 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:944:41
[INFO] [stdout]     |
[INFO] [stdout] 944 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 944 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stdout] 944 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/kv_server.rs:982:48
[INFO] [stdout]     |
[INFO] [stdout] 982 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 982 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 982 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1042:41
[INFO] [stdout]      |
[INFO] [stdout] 1042 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1042 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stdout] 1042 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1069:48
[INFO] [stdout]      |
[INFO] [stdout] 1069 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1069 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1069 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1092:41
[INFO] [stdout]      |
[INFO] [stdout] 1092 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1092 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stdout] 1092 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1130:48
[INFO] [stdout]      |
[INFO] [stdout] 1130 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1130 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1130 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1190:41
[INFO] [stdout]      |
[INFO] [stdout] 1190 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1190 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stdout] 1190 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1217:48
[INFO] [stdout]      |
[INFO] [stdout] 1217 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1217 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1217 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1237:41
[INFO] [stdout]      |
[INFO] [stdout] 1237 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1237 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stdout] 1237 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/kv_server.rs:1256:48
[INFO] [stdout]      |
[INFO] [stdout] 1256 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1256 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stdout] 1256 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[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/kv_server.rs:113:10
[INFO] [stdout]     |
[INFO] [stdout] 113 |     self.description().fmt(f)
[INFO] [stdout]     |          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` 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/kv_server.rs:213:10
[INFO] [stdout]     |
[INFO] [stdout] 213 |     self.description().fmt(f)
[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/kv_server.rs:511:27
[INFO] [stdout]     |
[INFO] [stdout] 511 |                   usr_err.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/kv_server.rs:532:19
[INFO] [stdout]     |
[INFO] [stdout] 532 |                 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/kv_server.rs:579:27
[INFO] [stdout]     |
[INFO] [stdout] 579 |                   usr_err.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/kv_server.rs:600:19
[INFO] [stdout]     |
[INFO] [stdout] 600 |                 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/kv_server.rs:647:27
[INFO] [stdout]     |
[INFO] [stdout] 647 |                   usr_err.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/kv_server.rs:668:19
[INFO] [stdout]     |
[INFO] [stdout] 668 |                 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/kv_server.rs:705:19
[INFO] [stdout]     |
[INFO] [stdout] 705 |                 e.description()
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let i_prot_fact: Box<TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 -     let i_prot_fact: Box<TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stdout] 39 +     let i_prot_fact: Box<dyn TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let o_prot_fact: Box<TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 -     let o_prot_fact: Box<TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stdout] 42 +     let o_prot_fact: Box<dyn TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/kv_server.rs:228:10
[INFO] [stdout]     |
[INFO] [stdout] 228 |   pub fn new<F1, F2>(key: F1, value: F2) -> KVObject where F1: Into<Option<String>>, F2: Into<Option<String>> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/kv_server.rs:319:10
[INFO] [stdout]     |
[INFO] [stdout] 319 |   pub fn new(input_protocol: IP, output_protocol: OP) -> KVServerSyncClient<IP, OP> {
[INFO] [stdout]     |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 56 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2m 31s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/kv_server-c3854d75282d1bb6)
[INFO] running `Command { std: "docker" "inspect" "2aaf68b9fb13e2c5aeeaa0ddcbaaabfbaf03d112b3925b93705116a33dd9afda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aaf68b9fb13e2c5aeeaa0ddcbaaabfbaf03d112b3925b93705116a33dd9afda", kill_on_drop: false }`
[INFO] [stdout] 2aaf68b9fb13e2c5aeeaa0ddcbaaabfbaf03d112b3925b93705116a33dd9afda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 498f462558377dcc682c4c11d1621fc656eeb9ea75581df96c6350ef984f27a1
[INFO] running `Command { std: "docker" "start" "-a" "498f462558377dcc682c4c11d1621fc656eeb9ea75581df96c6350ef984f27a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `ServiceException`
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:18:30
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 18 | use kv_server::{KeyNotFound, ServiceException};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kv_server.rs:49:45
[INFO] [stderr]    |
[INFO] [stderr] 49 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 49 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stderr] 49 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<KeyNotFound> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kv_server.rs:75:52
[INFO] [stderr]    |
[INFO] [stderr] 75 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]    |                                                    ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 75 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 75 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:134:45
[INFO] [stderr]     |
[INFO] [stderr] 134 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 134 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stderr] 134 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<ServiceException> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:166:52
[INFO] [stderr]     |
[INFO] [stderr] 166 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 166 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 166 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:234:45
[INFO] [stderr]     |
[INFO] [stderr] 234 |   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 234 -   pub fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stderr] 234 +   pub fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<KVObject> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:266:52
[INFO] [stderr]     |
[INFO] [stderr] 266 |   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 266 -   pub fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 266 +   pub fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:325:36
[INFO] [stderr]     |
[INFO] [stderr] 325 |   fn i_prot_mut(&mut self) -> &mut TInputProtocol { &mut self._i_prot }
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 325 -   fn i_prot_mut(&mut self) -> &mut TInputProtocol { &mut self._i_prot }
[INFO] [stderr] 325 +   fn i_prot_mut(&mut self) -> &mut dyn TInputProtocol { &mut self._i_prot }
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:326:36
[INFO] [stderr]     |
[INFO] [stderr] 326 |   fn o_prot_mut(&mut self) -> &mut TOutputProtocol { &mut self._o_prot }
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 326 -   fn o_prot_mut(&mut self) -> &mut TOutputProtocol { &mut self._o_prot }
[INFO] [stderr] 326 +   fn o_prot_mut(&mut self) -> &mut dyn TOutputProtocol { &mut self._o_prot }
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:465:73
[INFO] [stderr]     |
[INFO] [stderr] 465 |   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 465 -   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 465 +   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:465:102
[INFO] [stderr]     |
[INFO] [stderr] 465 |   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 465 -   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 465 +   fn process_set_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:468:73
[INFO] [stderr]     |
[INFO] [stderr] 468 |   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 468 -   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 468 +   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:468:102
[INFO] [stderr]     |
[INFO] [stderr] 468 |   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 468 -   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 468 +   fn process_get_val(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:471:73
[INFO] [stderr]     |
[INFO] [stderr] 471 |   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 471 -   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 471 +   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:471:102
[INFO] [stderr]     |
[INFO] [stderr] 471 |   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 471 -   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 471 +   fn process_get_obj(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:474:73
[INFO] [stderr]     |
[INFO] [stderr] 474 |   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 474 -   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 474 +   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:474:102
[INFO] [stderr]     |
[INFO] [stderr] 474 |   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<(...
[INFO] [stderr]     |                                                                                                      ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 474 -   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 474 +   fn process_del_key(&self, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:482:107
[INFO] [stderr]     |
[INFO] [stderr] 482 |   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stderr]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 482 -   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 482 +   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:482:136
[INFO] [stderr]     |
[INFO] [stderr] 482 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 482 -   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 482 +   pub fn process_set_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:545:107
[INFO] [stderr]     |
[INFO] [stderr] 545 |   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stderr]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 545 -   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 545 +   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:545:136
[INFO] [stderr]     |
[INFO] [stderr] 545 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 545 -   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 545 +   pub fn process_get_val<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:613:107
[INFO] [stderr]     |
[INFO] [stderr] 613 |   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stderr]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 613 -   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 613 +   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:613:136
[INFO] [stderr]     |
[INFO] [stderr] 613 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 613 -   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 613 +   pub fn process_get_obj<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:681:107
[INFO] [stderr]     |
[INFO] [stderr] 681 |   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TO...
[INFO] [stderr]     |                                                                                                           ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 681 -   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 681 +   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:681:136
[INFO] [stderr]     |
[INFO] [stderr] 681 | ...nce_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 681 -   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 681 +   pub fn process_del_key<H: KVServerSyncHandler>(handler: &H, incoming_sequence_number: i32, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:721:34
[INFO] [stderr]     |
[INFO] [stderr] 721 |   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 721 -   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 721 +   fn process(&self, i_prot: &mut dyn TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:721:63
[INFO] [stderr]     |
[INFO] [stderr] 721 |   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 721 -   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 721 +   fn process(&self, i_prot: &mut TInputProtocol, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:763:41
[INFO] [stderr]     |
[INFO] [stderr] 763 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 763 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stderr] 763 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<SetKeyArgs> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:790:48
[INFO] [stderr]     |
[INFO] [stderr] 790 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 790 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 790 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:812:41
[INFO] [stderr]     |
[INFO] [stderr] 812 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 812 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stderr] 812 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<SetKeyResult> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:844:48
[INFO] [stderr]     |
[INFO] [stderr] 844 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 844 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 844 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:894:41
[INFO] [stderr]     |
[INFO] [stderr] 894 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 894 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stderr] 894 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetValArgs> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:921:48
[INFO] [stderr]     |
[INFO] [stderr] 921 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 921 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 921 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:944:41
[INFO] [stderr]     |
[INFO] [stderr] 944 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 944 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stderr] 944 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetValResult> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/kv_server.rs:982:48
[INFO] [stderr]     |
[INFO] [stderr] 982 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 982 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 982 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1042:41
[INFO] [stderr]      |
[INFO] [stderr] 1042 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stderr]      |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1042 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stderr] 1042 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetObjArgs> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1069:48
[INFO] [stderr]      |
[INFO] [stderr] 1069 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1069 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 1069 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1092:41
[INFO] [stderr]      |
[INFO] [stderr] 1092 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stderr]      |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1092 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stderr] 1092 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<GetObjResult> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1130:48
[INFO] [stderr]      |
[INFO] [stderr] 1130 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1130 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 1130 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1190:41
[INFO] [stderr]      |
[INFO] [stderr] 1190 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stderr]      |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1190 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stderr] 1190 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<DelKeyArgs> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1217:48
[INFO] [stderr]      |
[INFO] [stderr] 1217 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1217 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 1217 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1237:41
[INFO] [stderr]      |
[INFO] [stderr] 1237 |   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stderr]      |                                         ^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1237 -   fn read_from_in_protocol(i_prot: &mut TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stderr] 1237 +   fn read_from_in_protocol(i_prot: &mut dyn TInputProtocol) -> thrift::Result<DelKeyResult> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/kv_server.rs:1256:48
[INFO] [stderr]      |
[INFO] [stderr] 1256 |   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      |                                                ^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1256 -   fn write_to_out_protocol(&self, o_prot: &mut TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr] 1256 +   fn write_to_out_protocol(&self, o_prot: &mut dyn TOutputProtocol) -> thrift::Result<()> {
[INFO] [stderr]      | 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:113:10
[INFO] [stderr]     |
[INFO] [stderr] 113 |     self.description().fmt(f)
[INFO] [stderr]     |          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:213:10
[INFO] [stderr]     |
[INFO] [stderr] 213 |     self.description().fmt(f)
[INFO] [stderr]     |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:511:27
[INFO] [stderr]     |
[INFO] [stderr] 511 |                   usr_err.description()
[INFO] [stderr]     |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:532:19
[INFO] [stderr]     |
[INFO] [stderr] 532 |                 e.description()
[INFO] [stderr]     |                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:579:27
[INFO] [stderr]     |
[INFO] [stderr] 579 |                   usr_err.description()
[INFO] [stderr]     |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:600:19
[INFO] [stderr]     |
[INFO] [stderr] 600 |                 e.description()
[INFO] [stderr]     |                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:647:27
[INFO] [stderr]     |
[INFO] [stderr] 647 |                   usr_err.description()
[INFO] [stderr]     |                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:668:19
[INFO] [stderr]     |
[INFO] [stderr] 668 |                 e.description()
[INFO] [stderr]     |                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/kv_server.rs:705:19
[INFO] [stderr]     |
[INFO] [stderr] 705 |                 e.description()
[INFO] [stderr]     |                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:39:26
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let i_prot_fact: Box<TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 39 -     let i_prot_fact: Box<TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stderr] 39 +     let i_prot_fact: Box<dyn TInputProtocolFactory> = Box::new(TCompactInputProtocolFactory::new());
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:42:26
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let o_prot_fact: Box<TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 -     let o_prot_fact: Box<TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stderr] 42 +     let o_prot_fact: Box<dyn TOutputProtocolFactory> = Box::new(TCompactOutputProtocolFactory::new());
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/kv_server.rs:228:10
[INFO] [stderr]     |
[INFO] [stderr] 228 |   pub fn new<F1, F2>(key: F1, value: F2) -> KVObject where F1: Into<Option<String>>, F2: Into<Option<String>> {
[INFO] [stderr]     |          ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/kv_server.rs:319:10
[INFO] [stderr]     |
[INFO] [stderr] 319 |   pub fn new(input_protocol: IP, output_protocol: OP) -> KVServerSyncClient<IP, OP> {
[INFO] [stderr]     |          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `kv_server` (bin "kv_server" test) generated 56 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/kv_server-c3854d75282d1bb6)
[INFO] running `Command { std: "docker" "inspect" "498f462558377dcc682c4c11d1621fc656eeb9ea75581df96c6350ef984f27a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "498f462558377dcc682c4c11d1621fc656eeb9ea75581df96c6350ef984f27a1", kill_on_drop: false }`
[INFO] [stdout] 498f462558377dcc682c4c11d1621fc656eeb9ea75581df96c6350ef984f27a1