[INFO] cloning repository https://github.com/cameronp98/multiping
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cameronp98/multiping" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcameronp98%2Fmultiping", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcameronp98%2Fmultiping'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 714fd069127761b289bc3b84f35afbaaa8e912c9
[INFO] testing cameronp98/multiping against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcameronp98%2Fmultiping" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cameronp98/multiping
[INFO] finished tweaking git repo https://github.com/cameronp98/multiping
[INFO] tweaked toml for git repo https://github.com/cameronp98/multiping written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cameronp98/multiping on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cameronp98/multiping already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1105701bbb090d367274d8ef3ec934bd7d16fd3adc7dbefbe372f09d7dc4b9c
[INFO] running `Command { std: "docker" "start" "-a" "c1105701bbb090d367274d8ef3ec934bd7d16fd3adc7dbefbe372f09d7dc4b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1105701bbb090d367274d8ef3ec934bd7d16fd3adc7dbefbe372f09d7dc4b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1105701bbb090d367274d8ef3ec934bd7d16fd3adc7dbefbe372f09d7dc4b9c", kill_on_drop: false }`
[INFO] [stdout] c1105701bbb090d367274d8ef3ec934bd7d16fd3adc7dbefbe372f09d7dc4b9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 359f65bcfe161d85184005bf2b59c97bc6c4174033c37a9433710685bffe836d
[INFO] running `Command { std: "docker" "start" "-a" "359f65bcfe161d85184005bf2b59c97bc6c4174033c37a9433710685bffe836d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.10
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling regex v1.2.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling multiping v0.1.0 (/opt/rustwide/workdir/multiping)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> multiping/src/message.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> multiping/src/message.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> multiping/src/connection.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 94  | /         match self.send_tx.send(Action::Forward(msg)) {
[INFO] [stdout] 95  | |             Ok(()) => unimplemented!(),
[INFO] [stdout] 96  | |             Err(e) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 102 |
[INFO] [stdout] 103 |           debug!("message forwarded");
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `log` which comes from the expansion of the macro `debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> multiping/src/client.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(server_addr: &'a str) -> Client {
[INFO] [stdout]    |                              ^^         ------ the lifetime gets resolved as `'a`
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(server_addr: &'a str) -> Client<'a> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> multiping/src/message.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ^----------
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        `Deserialize` is not local
[INFO] [stdout]    |                        move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Message`
[INFO] [stdout] 12 | pub enum Message {
[INFO] [stdout]    |          ------- `Message` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> multiping/src/message.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                                     ^--------
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     `Serialize` is not local
[INFO] [stdout]    |                                     move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Message`
[INFO] [stdout] 12 | pub enum Message {
[INFO] [stdout]    |          ------- `Message` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> multiping/src/server.rs:30:24
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn connections(&mut self) -> MutexGuard<ConnectionRegistry> {
[INFO] [stdout]    |                        ^^^^^^^^^     ------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn connections(&mut self) -> MutexGuard<'_, ConnectionRegistry> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stderr]    Compiling client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.28s
[INFO] running `Command { std: "docker" "inspect" "359f65bcfe161d85184005bf2b59c97bc6c4174033c37a9433710685bffe836d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "359f65bcfe161d85184005bf2b59c97bc6c4174033c37a9433710685bffe836d", kill_on_drop: false }`
[INFO] [stdout] 359f65bcfe161d85184005bf2b59c97bc6c4174033c37a9433710685bffe836d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9d5129a301acb79c987c4db6a816cb35504ec05bd49596dcc3373bec9268fad
[INFO] running `Command { std: "docker" "start" "-a" "f9d5129a301acb79c987c4db6a816cb35504ec05bd49596dcc3373bec9268fad", kill_on_drop: false }`
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> multiping/src/message.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> multiping/src/message.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> multiping/src/connection.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 94  | /         match self.send_tx.send(Action::Forward(msg)) {
[INFO] [stdout] 95  | |             Ok(()) => unimplemented!(),
[INFO] [stdout] 96  | |             Err(e) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 102 |
[INFO] [stdout] 103 |           debug!("message forwarded");
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `log` which comes from the expansion of the macro `debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> multiping/src/client.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(server_addr: &'a str) -> Client {
[INFO] [stdout]    |                              ^^         ------ the lifetime gets resolved as `'a`
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(server_addr: &'a str) -> Client<'a> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> multiping/src/message.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ^----------
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        `Deserialize` is not local
[INFO] [stdout]    |                        move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Message`
[INFO] [stdout] 12 | pub enum Message {
[INFO] [stdout]    |          ------- `Message` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling multiping v0.1.0 (/opt/rustwide/workdir/multiping)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> multiping/src/message.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                                     ^--------
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     `Serialize` is not local
[INFO] [stdout]    |                                     move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Message`
[INFO] [stdout] 12 | pub enum Message {
[INFO] [stdout]    |          ------- `Message` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> multiping/src/server.rs:30:24
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn connections(&mut self) -> MutexGuard<ConnectionRegistry> {
[INFO] [stdout]    |                        ^^^^^^^^^     ------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn connections(&mut self) -> MutexGuard<'_, ConnectionRegistry> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> multiping/src/message.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stdout]   --> multiping/src/message.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stdout]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stdout]    = help: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> multiping/src/connection.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 94  | /         match self.send_tx.send(Action::Forward(msg)) {
[INFO] [stdout] 95  | |             Ok(()) => unimplemented!(),
[INFO] [stdout] 96  | |             Err(e) => {
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 102 |
[INFO] [stdout] 103 |           debug!("message forwarded");
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `log` which comes from the expansion of the macro `debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> multiping/src/client.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(server_addr: &'a str) -> Client {
[INFO] [stdout]    |                              ^^         ------ the lifetime gets resolved as `'a`
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(server_addr: &'a str) -> Client<'a> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> multiping/src/message.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                        ^----------
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        `Deserialize` is not local
[INFO] [stdout]    |                        move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Message`
[INFO] [stdout] 12 | pub enum Message {
[INFO] [stdout]    |          ------- `Message` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> multiping/src/message.rs:11:37
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stdout]    |                                     ^--------
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     `Serialize` is not local
[INFO] [stdout]    |                                     move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Message`
[INFO] [stdout] 12 | pub enum Message {
[INFO] [stdout]    |          ------- `Message` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> multiping/src/server.rs:30:24
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn connections(&mut self) -> MutexGuard<ConnectionRegistry> {
[INFO] [stdout]    |                        ^^^^^^^^^     ------------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn connections(&mut self) -> MutexGuard<'_, ConnectionRegistry> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "f9d5129a301acb79c987c4db6a816cb35504ec05bd49596dcc3373bec9268fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d5129a301acb79c987c4db6a816cb35504ec05bd49596dcc3373bec9268fad", kill_on_drop: false }`
[INFO] [stdout] f9d5129a301acb79c987c4db6a816cb35504ec05bd49596dcc3373bec9268fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 52207e9c7e66da16244d5f38b1c7b76993e959ec56adae14fa31faa2b6b12b91
[INFO] running `Command { std: "docker" "start" "-a" "52207e9c7e66da16244d5f38b1c7b76993e959ec56adae14fa31faa2b6b12b91", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stderr]   --> multiping/src/message.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stderr]    |                        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: no expected values for `feature`
[INFO] [stderr]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]    = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]    = help: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `cargo-clippy`
[INFO] [stderr]   --> multiping/src/message.rs:11:37
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stderr]    |                                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: no expected values for `feature`
[INFO] [stderr]    = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate
[INFO] [stderr]    = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg
[INFO] [stderr]    = help: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> multiping/src/connection.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 94  | /         match self.send_tx.send(Action::Forward(msg)) {
[INFO] [stderr] 95  | |             Ok(()) => unimplemented!(),
[INFO] [stderr] 96  | |             Err(e) => {
[INFO] [stderr] ...   |
[INFO] [stderr] 101 | |         }
[INFO] [stderr]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 102 |
[INFO] [stderr] 103 |           debug!("message forwarded");
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `log` which comes from the expansion of the macro `debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> multiping/src/client.rs:13:30
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(server_addr: &'a str) -> Client {
[INFO] [stderr]    |                              ^^         ------ the lifetime gets resolved as `'a`
[INFO] [stderr]    |                              |
[INFO] [stderr]    |                              this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(server_addr: &'a str) -> Client<'a> {
[INFO] [stderr]    |                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> multiping/src/message.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stderr]    |                        ^----------
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        `Deserialize` is not local
[INFO] [stderr]    |                        move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Message`
[INFO] [stderr] 12 | pub enum Message {
[INFO] [stderr]    |          ------- `Message` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stderr]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stderr]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> multiping/src/message.rs:11:37
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Debug, Clone, Deserialize, Serialize)]
[INFO] [stderr]    |                                     ^--------
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     `Serialize` is not local
[INFO] [stderr]    |                                     move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Message`
[INFO] [stderr] 12 | pub enum Message {
[INFO] [stderr]    |          ------- `Message` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stderr]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> multiping/src/server.rs:30:24
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn connections(&mut self) -> MutexGuard<ConnectionRegistry> {
[INFO] [stderr]    |                        ^^^^^^^^^     ------------------------------ the lifetime gets resolved as `'_`
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn connections(&mut self) -> MutexGuard<'_, ConnectionRegistry> {
[INFO] [stderr]    |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `multiping` (lib) generated 7 warnings
[INFO] [stderr] warning: `multiping` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/client-2a05e8d9f521cb24)
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/multiping-7161c1ac9909f63d)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/server-a9c97c1592b49c28)
[INFO] [stderr]    Doc-tests multiping
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test multiping/src/connection.rs - connection::Action::Disconnect (line 22) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- multiping/src/connection.rs - connection::Action::Disconnect (line 22) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `worker_tx` in this scope
[INFO] [stdout]  --> multiping/src/connection.rs:23:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | worker_tx.send(Action::Forward(Message::Disconnect));
[INFO] [stdout]   | ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Message`
[INFO] [stdout]  --> multiping/src/connection.rs:23:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | worker_tx.send(Action::Forward(Message::Disconnect));
[INFO] [stdout]   |                                ^^^^^^^ use of undeclared type `Message`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]   |
[INFO] [stdout] 2 + use multiping::Message;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `worker_tx` in this scope
[INFO] [stdout]  --> multiping/src/connection.rs:24:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | worker_tx.send(Action::Disconnect);
[INFO] [stdout]   | ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Action`
[INFO] [stdout]  --> multiping/src/connection.rs:23:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | worker_tx.send(Action::Forward(Message::Disconnect));
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                use of undeclared type `Action`
[INFO] [stdout]   |                help: an enum with a similar name exists: `Option`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Action`
[INFO] [stdout]  --> multiping/src/connection.rs:24:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | worker_tx.send(Action::Disconnect);
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout]   |                |
[INFO] [stdout]   |                use of undeclared type `Action`
[INFO] [stdout]   |                help: an enum with a similar name exists: `Option`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     multiping/src/connection.rs - connection::Action::Disconnect (line 22)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `-p multiping --doc`
[INFO] running `Command { std: "docker" "inspect" "52207e9c7e66da16244d5f38b1c7b76993e959ec56adae14fa31faa2b6b12b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52207e9c7e66da16244d5f38b1c7b76993e959ec56adae14fa31faa2b6b12b91", kill_on_drop: false }`
[INFO] [stdout] 52207e9c7e66da16244d5f38b1c7b76993e959ec56adae14fa31faa2b6b12b91
