[INFO] fetching crate udp_connector 0.1.0...
[INFO] testing udp_connector-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate udp_connector 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate udp_connector 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] add408897aaa7ae423a9b29a8babf0f56e40b910cc88c8359a867271623bb9d1
[INFO] running `Command { std: "docker" "start" "-a" "add408897aaa7ae423a9b29a8babf0f56e40b910cc88c8359a867271623bb9d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "add408897aaa7ae423a9b29a8babf0f56e40b910cc88c8359a867271623bb9d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add408897aaa7ae423a9b29a8babf0f56e40b910cc88c8359a867271623bb9d1", kill_on_drop: false }`
[INFO] [stdout] add408897aaa7ae423a9b29a8babf0f56e40b910cc88c8359a867271623bb9d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e3f832b02ccc159eb2cc3f1c051188160827bc9fc6013da03bd5acb74f60865
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8e3f832b02ccc159eb2cc3f1c051188160827bc9fc6013da03bd5acb74f60865", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling addr2line v0.15.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.126
[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:178:44
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                 ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                       ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                           ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                      ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                          ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                     ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                   ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                  ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.66s
[INFO] running `Command { std: "docker" "inspect" "8e3f832b02ccc159eb2cc3f1c051188160827bc9fc6013da03bd5acb74f60865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3f832b02ccc159eb2cc3f1c051188160827bc9fc6013da03bd5acb74f60865", kill_on_drop: false }`
[INFO] [stdout] 8e3f832b02ccc159eb2cc3f1c051188160827bc9fc6013da03bd5acb74f60865
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 77c5b7e9744dee31fbc4690cf56a666296694da6d8496a3efd0aaa2fde31dd72
[INFO] running `Command { std: "docker" "start" "-a" "77c5b7e9744dee31fbc4690cf56a666296694da6d8496a3efd0aaa2fde31dd72", 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:178:44
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                 ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                       ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                           ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                      ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                          ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                     ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                   ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                  ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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:178:44
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stdout]     |                                            ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                 ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                       ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                           ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                      ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                          ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                     ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                   ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                  ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "77c5b7e9744dee31fbc4690cf56a666296694da6d8496a3efd0aaa2fde31dd72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77c5b7e9744dee31fbc4690cf56a666296694da6d8496a3efd0aaa2fde31dd72", kill_on_drop: false }`
[INFO] [stdout] 77c5b7e9744dee31fbc4690cf56a666296694da6d8496a3efd0aaa2fde31dd72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 99971e9b4196e6d69cac7ab3392d865b9229d104299726929582f837ea61f536
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99971e9b4196e6d69cac7ab3392d865b9229d104299726929582f837ea61f536", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 2 tests
[INFO] [stderr]    --> src/lib.rs:178:44
[INFO] [stderr]     |
[INFO] [stderr] 178 |     pub fn connect(&mut self, socket: &mut Socket) -> Result<()> {
[INFO] [stderr]     |                                            ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                 ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                       ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                           ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                      ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                          ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                     ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                   ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:420:18
[INFO] [stderr]     |
[INFO] [stderr] 420 |     socket: &mut Socket,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[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]     |                                            ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                 ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                       ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                           ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                      ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                          ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                     ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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]     |                                                   ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:420:18
[INFO] [stderr]     |
[INFO] [stderr] 420 |     socket: &mut Socket,
[INFO] [stderr]     |                  ^^^^^^ help: use `dyn`: `dyn Socket`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/udp_connector-9fe8d7275deb09c0)
[INFO] [stdout] test test::test_confirmed_message ... ok
[INFO] [stderr]    Doc-tests udp_connector
[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 3.81s
[INFO] [stdout] 
[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 2.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "99971e9b4196e6d69cac7ab3392d865b9229d104299726929582f837ea61f536", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99971e9b4196e6d69cac7ab3392d865b9229d104299726929582f837ea61f536", kill_on_drop: false }`
[INFO] [stdout] 99971e9b4196e6d69cac7ab3392d865b9229d104299726929582f837ea61f536