[INFO] fetching crate udp_connector 0.1.0...
[INFO] testing udp_connector-0.1.0 against master#0d13f6afeba4935499abe0c9a07426c94492c94e for pr-96025
[INFO] extracting crate udp_connector 0.1.0 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate udp_connector 0.1.0 on toolchain 0d13f6afeba4935499abe0c9a07426c94492c94e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate udp_connector 0.1.0
[INFO] finished tweaking crates.io crate udp_connector 0.1.0
[INFO] tweaked toml for crates.io crate udp_connector 0.1.0 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b19f6e8a8242fbb90f7436a564bc3bdf734f34286da09766fa882d021a930a0e
[INFO] running `Command { std: "docker" "start" "-a" "b19f6e8a8242fbb90f7436a564bc3bdf734f34286da09766fa882d021a930a0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b19f6e8a8242fbb90f7436a564bc3bdf734f34286da09766fa882d021a930a0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b19f6e8a8242fbb90f7436a564bc3bdf734f34286da09766fa882d021a930a0e", kill_on_drop: false }`
[INFO] [stdout] b19f6e8a8242fbb90f7436a564bc3bdf734f34286da09766fa882d021a930a0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76d54ee4a8abeb0a87dc87438452807da4f71c41979c431e017e2dfba1c106cc
[INFO] running `Command { std: "docker" "start" "-a" "76d54ee4a8abeb0a87dc87438452807da4f71c41979c431e017e2dfba1c106cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling object v0.28.3
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling udp_connector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:420:18
[INFO] [stdout]     |
[INFO] [stdout] 420 |     socket: &mut Socket,
[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 2018) but is a hard error in Rust 2021!
[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] 420 -     socket: &mut Socket,
[INFO] [stdout] 420 +     socket: &mut dyn Socket,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:44
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 178 -     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 178 +     pub fn connect(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:203:49
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     |                                                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 203 -     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout] 203 +     pub fn receive_from(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:230:55
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     |                                                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 230 -     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout] 230 +     pub fn update_and_receive(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:236:43
[INFO] [stdout]     |
[INFO] [stdout] 236 |     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 236 -     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 236 +     pub fn update(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:274:22
[INFO] [stdout]     |
[INFO] [stdout] 274 |         socket: &mut Socket,
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 274 -         socket: &mut Socket,
[INFO] [stdout] 274 +         socket: &mut dyn Socket,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:342:42
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 342 -     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 342 +     fn send_ping(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:382:53
[INFO] [stdout]     |
[INFO] [stdout] 382 |     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     |                                                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 382 -     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout] 382 +     pub fn send_unconfirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:395:51
[INFO] [stdout]     |
[INFO] [stdout] 395 |     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     |                                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 395 -     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout] 395 +     pub fn send_confirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.20s
[INFO] running `Command { std: "docker" "inspect" "76d54ee4a8abeb0a87dc87438452807da4f71c41979c431e017e2dfba1c106cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d54ee4a8abeb0a87dc87438452807da4f71c41979c431e017e2dfba1c106cc", kill_on_drop: false }`
[INFO] [stdout] 76d54ee4a8abeb0a87dc87438452807da4f71c41979c431e017e2dfba1c106cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77b5766d2f03f1a92fe72858b2f9db20d4babcba0da4acd176c4e5cb9299d0c3
[INFO] running `Command { std: "docker" "start" "-a" "77b5766d2f03f1a92fe72858b2f9db20d4babcba0da4acd176c4e5cb9299d0c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling udp_connector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:420:18
[INFO] [stdout]     |
[INFO] [stdout] 420 |     socket: &mut Socket,
[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 2018) but is a hard error in Rust 2021!
[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] 420 -     socket: &mut Socket,
[INFO] [stdout] 420 +     socket: &mut dyn Socket,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:44
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 178 -     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 178 +     pub fn connect(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:203:49
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     |                                                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 203 -     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout] 203 +     pub fn receive_from(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:230:55
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     |                                                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 230 -     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout] 230 +     pub fn update_and_receive(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:236:43
[INFO] [stdout]     |
[INFO] [stdout] 236 |     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 236 -     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 236 +     pub fn update(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:274:22
[INFO] [stdout]     |
[INFO] [stdout] 274 |         socket: &mut Socket,
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 274 -         socket: &mut Socket,
[INFO] [stdout] 274 +         socket: &mut dyn Socket,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:342:42
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 342 -     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 342 +     fn send_ping(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:382:53
[INFO] [stdout]     |
[INFO] [stdout] 382 |     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     |                                                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 382 -     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout] 382 +     pub fn send_unconfirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:395:51
[INFO] [stdout]     |
[INFO] [stdout] 395 |     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     |                                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 395 -     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout] 395 +     pub fn send_confirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:420:18
[INFO] [stdout]     |
[INFO] [stdout] 420 |     socket: &mut Socket,
[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 2018) but is a hard error in Rust 2021!
[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] 420 -     socket: &mut Socket,
[INFO] [stdout] 420 +     socket: &mut dyn Socket,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:178:44
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 178 -     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 178 +     pub fn connect(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:203:49
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     |                                                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 203 -     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout] 203 +     pub fn receive_from(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:230:55
[INFO] [stdout]     |
[INFO] [stdout] 230 |     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     |                                                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 230 -     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout] 230 +     pub fn update_and_receive(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:236:43
[INFO] [stdout]     |
[INFO] [stdout] 236 |     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 236 -     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 236 +     pub fn update(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:274:22
[INFO] [stdout]     |
[INFO] [stdout] 274 |         socket: &mut Socket,
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 274 -         socket: &mut Socket,
[INFO] [stdout] 274 +         socket: &mut dyn Socket,
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:342:42
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                          ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 342 -     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout] 342 +     fn send_ping(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:382:53
[INFO] [stdout]     |
[INFO] [stdout] 382 |     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     |                                                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 382 -     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout] 382 +     pub fn send_unconfirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:395:51
[INFO] [stdout]     |
[INFO] [stdout] 395 |     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     |                                                   ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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] 395 -     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout] 395 +     pub fn send_confirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.15s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/udp_connector-1179158816f48f5a)
[INFO] running `Command { std: "docker" "inspect" "77b5766d2f03f1a92fe72858b2f9db20d4babcba0da4acd176c4e5cb9299d0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77b5766d2f03f1a92fe72858b2f9db20d4babcba0da4acd176c4e5cb9299d0c3", kill_on_drop: false }`
[INFO] [stdout] 77b5766d2f03f1a92fe72858b2f9db20d4babcba0da4acd176c4e5cb9299d0c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28f661b3d1b3123582ac823eb85a457670f8c573b840e34a4ae9ae052c194160
[INFO] running `Command { std: "docker" "start" "-a" "28f661b3d1b3123582ac823eb85a457670f8c573b840e34a4ae9ae052c194160", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] 
[INFO] [stderr]    --> src/lib.rs:420:18
[INFO] [stdout] running 2 tests
[INFO] [stderr]     |
[INFO] [stderr] 420 |     socket: &mut Socket,
[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 2018) 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] 420 -     socket: &mut Socket,
[INFO] [stderr] 420 +     socket: &mut dyn Socket,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:178:44
[INFO] [stderr]     |
[INFO] [stderr] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 178 -     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stderr] 178 +     pub fn connect(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:203:49
[INFO] [stderr]     |
[INFO] [stderr] 203 |     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stderr]     |                                                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 203 -     pub fn receive_from(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stderr] 203 +     pub fn receive_from(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:230:55
[INFO] [stderr]     |
[INFO] [stderr] 230 |     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stderr]     |                                                       ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 230 -     pub fn update_and_receive(&mut self, socket: &mut Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stderr] 230 +     pub fn update_and_receive(&mut self, socket: &mut dyn Socket) -> Result<Vec<TParam::TReceive>> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:236:43
[INFO] [stderr]     |
[INFO] [stderr] 236 |     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stderr]     |                                           ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 236 -     pub fn update(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stderr] 236 +     pub fn update(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:274:22
[INFO] [stderr]     |
[INFO] [stderr] 274 |         socket: &mut Socket,
[INFO] [stderr]     |                      ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 274 -         socket: &mut Socket,
[INFO] [stderr] 274 +         socket: &mut dyn Socket,
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:342:42
[INFO] [stderr]     |
[INFO] [stderr] 342 |     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stderr]     |                                          ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 342 -     fn send_ping(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stderr] 342 +     fn send_ping(&mut self, socket: &mut dyn Socket) -> Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:382:53
[INFO] [stderr]     |
[INFO] [stderr] 382 |     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stderr]     |                                                     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 382 -     pub fn send_unconfirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stderr] 382 +     pub fn send_unconfirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:395:51
[INFO] [stderr]     |
[INFO] [stderr] 395 |     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stderr]     |                                                   ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) 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] 395 -     pub fn send_confirmed(&mut self, socket: &mut Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stderr] 395 +     pub fn send_confirmed(&mut self, socket: &mut dyn Socket, msg: TParam::TSend) -> Result<()> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `udp_connector` (lib) generated 9 warnings
[INFO] [stderr] warning: `udp_connector` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/udp_connector-1179158816f48f5a)
[INFO] [stdout] test test::test_confirmed_message ... ok
[INFO] [stdout] test test::test_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.80s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests udp_connector
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/param.rs - param::ConnectorParam::TReceive (line 34) ... ok
[INFO] [stdout] test src/param.rs - param::ConnectorParam::TSend (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.79s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "28f661b3d1b3123582ac823eb85a457670f8c573b840e34a4ae9ae052c194160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28f661b3d1b3123582ac823eb85a457670f8c573b840e34a4ae9ae052c194160", kill_on_drop: false }`
[INFO] [stdout] 28f661b3d1b3123582ac823eb85a457670f8c573b840e34a4ae9ae052c194160