[INFO] cloning repository https://github.com/WeirdConstructor/datynapse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WeirdConstructor/datynapse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeirdConstructor%2Fdatynapse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeirdConstructor%2Fdatynapse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f05dd6f9cef8b78bdd0f12b9adeedaf553739ed
[INFO] testing WeirdConstructor/datynapse against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWeirdConstructor%2Fdatynapse" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WeirdConstructor/datynapse on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/WeirdConstructor/datynapse
[INFO] removed path dependency wlambda from git repo https://github.com/WeirdConstructor/datynapse
[INFO] finished tweaking git repo https://github.com/WeirdConstructor/datynapse
[INFO] tweaked toml for git repo https://github.com/WeirdConstructor/datynapse written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/WeirdConstructor/datynapse already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (wlambda) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (wlambda) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 906e1093486db804931973a01d0b9a3b9e156c42b50532d33205d528570fd9e8
[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" "906e1093486db804931973a01d0b9a3b9e156c42b50532d33205d528570fd9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "906e1093486db804931973a01d0b9a3b9e156c42b50532d33205d528570fd9e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "906e1093486db804931973a01d0b9a3b9e156c42b50532d33205d528570fd9e8", kill_on_drop: false }`
[INFO] [stdout] 906e1093486db804931973a01d0b9a3b9e156c42b50532d33205d528570fd9e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a765d1d3e7365cc2402c58a86d4f237d8941059ddd6d87c666b027b9b5bcf814
[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" "a765d1d3e7365cc2402c58a86d4f237d8941059ddd6d87c666b027b9b5bcf814", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (wlambda) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rmp v0.8.9
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[INFO] [stderr]    Compiling rmp-serde v0.14.4
[INFO] [stderr]    Compiling dirs-sys-next v0.1.1
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling dirs-next v1.0.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling regex v1.4.1
[INFO] [stderr]    Compiling rustyline v6.3.0
[INFO] [stderr]    Compiling wlambda v0.6.3
[INFO] [stderr]    Compiling datynapse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `wlambda::VVal`
[INFO] [stdout]  --> src/tcp_csv_msg_connection.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use wlambda::VVal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:291:25
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     for i in 0..100000 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:107:44
[INFO] [stdout]     |
[INFO] [stdout] 107 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:113:44
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:117:44
[INFO] [stdout]     |
[INFO] [stdout] 117 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:128:36
[INFO] [stdout]     |
[INFO] [stdout] 128 |                         if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:139:32
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn server_event(&self, e: Event) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:55:40
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...                   if let Err(e) =
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream_rx`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let (stream_tx, stream_rx) = std::sync::mpsc::channel();
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:196:36
[INFO] [stdout]     |
[INFO] [stdout] 196 |                         if let Err(e) = event_tx.send(
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:236:36
[INFO] [stdout]     |
[INFO] [stdout] 236 |                         if let Err(e) =
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:265:48
[INFO] [stdout]     |
[INFO] [stdout] 265 | ...                   if let Err(e) =
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:293:36
[INFO] [stdout]     |
[INFO] [stdout] 293 |                         if let Err(e) =
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:203:21
[INFO] [stdout]     |
[INFO] [stdout] 203 |                 let mut stream =
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:210:24
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     Ok(mut stream) => {
[INFO] [stdout]     |                        ----^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:228:29
[INFO] [stdout]     |
[INFO] [stdout] 228 |                         let mut writer_stream =
[INFO] [stdout]     |                             ----^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Client`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Client(ClientID, Event),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Server`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Server(Event),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPCSVServer`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct TCPCSVServer {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPServerConInfo`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct TCPServerConInfo {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPServerConnection`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct TCPServerConnection {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_event`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn server_event(&self, e: Event) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn_server_thread`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn spawn_server_thread(&mut self) -> Result<(), std::io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `garbage_collect`
[INFO] [stdout]   --> src/main.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn garbage_collect(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Again`
[INFO] [stdout]    --> src/main.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     Again,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Crash`
[INFO] [stdout]    --> src/main.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     Crash,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:292:25
[INFO] [stdout]     |
[INFO] [stdout] 292 | ...   c.send("AAAAAAAAAAAAAAAAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:242:29
[INFO] [stdout]     |
[INFO] [stdout] 242 | ...                   wr_stop_tx.send(None);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:243:29
[INFO] [stdout]     |
[INFO] [stdout] 243 | ...                   writer.join();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:289:25
[INFO] [stdout]     |
[INFO] [stdout] 289 |                         wr_stop_tx.send(None);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:290:25
[INFO] [stdout]     |
[INFO] [stdout] 290 |                         writer.join();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |         std::mem::replace(&mut self.reader, Some(reader));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:317:9
[INFO] [stdout]     |
[INFO] [stdout] 317 |         std::mem::replace(&mut self.reader_rx, None);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |         std::mem::replace(&mut self.writer_tx, None);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `Command { std: "docker" "inspect" "a765d1d3e7365cc2402c58a86d4f237d8941059ddd6d87c666b027b9b5bcf814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a765d1d3e7365cc2402c58a86d4f237d8941059ddd6d87c666b027b9b5bcf814", kill_on_drop: false }`
[INFO] [stdout] a765d1d3e7365cc2402c58a86d4f237d8941059ddd6d87c666b027b9b5bcf814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2469024fd404e68c34ab7940df7fea17ce9af80a29f1e6c7719fbe99c0c29b59
[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" "2469024fd404e68c34ab7940df7fea17ce9af80a29f1e6c7719fbe99c0c29b59", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (wlambda) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling datynapse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `wlambda::VVal`
[INFO] [stdout]  --> src/tcp_csv_msg_connection.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use wlambda::VVal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:291:25
[INFO] [stdout]     |
[INFO] [stdout] 291 |                     for i in 0..100000 {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:107:44
[INFO] [stdout]     |
[INFO] [stdout] 107 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:113:44
[INFO] [stdout]     |
[INFO] [stdout] 113 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:117:44
[INFO] [stdout]     |
[INFO] [stdout] 117 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:128:36
[INFO] [stdout]     |
[INFO] [stdout] 128 |                         if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:139:32
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     if let Err(e) = writer_event_tx.send(
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn server_event(&self, e: Event) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:55:40
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...                   if let Err(e) =
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream_rx`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let (stream_tx, stream_rx) = std::sync::mpsc::channel();
[INFO] [stdout]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:196:36
[INFO] [stdout]     |
[INFO] [stdout] 196 |                         if let Err(e) = event_tx.send(
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:236:36
[INFO] [stdout]     |
[INFO] [stdout] 236 |                         if let Err(e) =
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:265:48
[INFO] [stdout]     |
[INFO] [stdout] 265 | ...                   if let Err(e) =
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:293:36
[INFO] [stdout]     |
[INFO] [stdout] 293 |                         if let Err(e) =
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:203:21
[INFO] [stdout]     |
[INFO] [stdout] 203 |                 let mut stream =
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:210:24
[INFO] [stdout]     |
[INFO] [stdout] 210 |                     Ok(mut stream) => {
[INFO] [stdout]     |                        ----^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:228:29
[INFO] [stdout]     |
[INFO] [stdout] 228 |                         let mut writer_stream =
[INFO] [stdout]     |                             ----^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Quit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Client`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Client(ClientID, Event),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Server`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     Server(Event),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPCSVServer`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct TCPCSVServer {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPServerConInfo`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct TCPServerConInfo {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TCPServerConnection`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct TCPServerConnection {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `server_event`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn server_event(&self, e: Event) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `spawn_server_thread`
[INFO] [stdout]   --> src/tcp_csv_msg_connection.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn spawn_server_thread(&mut self) -> Result<(), std::io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `garbage_collect`
[INFO] [stdout]   --> src/main.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn garbage_collect(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Again`
[INFO] [stdout]    --> src/main.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     Again,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Crash`
[INFO] [stdout]    --> src/main.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     Crash,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:292:25
[INFO] [stdout]     |
[INFO] [stdout] 292 | ...   c.send("AAAAAAAAAAAAAAAAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:242:29
[INFO] [stdout]     |
[INFO] [stdout] 242 | ...                   wr_stop_tx.send(None);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:243:29
[INFO] [stdout]     |
[INFO] [stdout] 243 | ...                   writer.join();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:289:25
[INFO] [stdout]     |
[INFO] [stdout] 289 |                         wr_stop_tx.send(None);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:290:25
[INFO] [stdout]     |
[INFO] [stdout] 290 |                         writer.join();
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |         std::mem::replace(&mut self.reader, Some(reader));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:317:9
[INFO] [stdout]     |
[INFO] [stdout] 317 |         std::mem::replace(&mut self.reader_rx, None);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/tcp_csv_msg_connection.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |         std::mem::replace(&mut self.writer_tx, None);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "2469024fd404e68c34ab7940df7fea17ce9af80a29f1e6c7719fbe99c0c29b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2469024fd404e68c34ab7940df7fea17ce9af80a29f1e6c7719fbe99c0c29b59", kill_on_drop: false }`
[INFO] [stdout] 2469024fd404e68c34ab7940df7fea17ce9af80a29f1e6c7719fbe99c0c29b59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a5bc0c6480946f89f6b9eae3638bc13c2db4910782caadf230ecdf7e39fa4cd
[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" "6a5bc0c6480946f89f6b9eae3638bc13c2db4910782caadf230ecdf7e39fa4cd", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (wlambda) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused import: `wlambda::VVal`
[INFO] [stderr]  --> src/tcp_csv_msg_connection.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use wlambda::VVal;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:291:25
[INFO] [stderr]     |
[INFO] [stderr] 291 |                     for i in 0..100000 {
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:107:44
[INFO] [stderr]     |
[INFO] [stderr] 107 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:113:44
[INFO] [stderr]     |
[INFO] [stderr] 113 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:117:44
[INFO] [stderr]     |
[INFO] [stderr] 117 | ...                   if let Err(e) = writer_event_tx.send(
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:128:36
[INFO] [stderr]     |
[INFO] [stderr] 128 |                         if let Err(e) = writer_event_tx.send(
[INFO] [stderr]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:139:32
[INFO] [stderr]     |
[INFO] [stderr] 139 |                     if let Err(e) = writer_event_tx.send(
[INFO] [stderr]     |                                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn server_event(&self, e: Event) {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:55:40
[INFO] [stderr]    |
[INFO] [stderr] 55 | ...                   if let Err(e) =
[INFO] [stderr]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stream_rx`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:45:25
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let (stream_tx, stream_rx) = std::sync::mpsc::channel();
[INFO] [stderr]    |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_rx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:196:36
[INFO] [stderr]     |
[INFO] [stderr] 196 |                         if let Err(e) = event_tx.send(
[INFO] [stderr]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:236:36
[INFO] [stderr]     |
[INFO] [stderr] 236 |                         if let Err(e) =
[INFO] [stderr]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:265:48
[INFO] [stderr]     |
[INFO] [stderr] 265 | ...                   if let Err(e) =
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:293:36
[INFO] [stderr]     |
[INFO] [stderr] 293 |                         if let Err(e) =
[INFO] [stderr]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:203:21
[INFO] [stderr]     |
[INFO] [stderr] 203 |                 let mut stream =
[INFO] [stderr]     |                     ----^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:210:24
[INFO] [stderr]     |
[INFO] [stderr] 210 |                     Ok(mut stream) => {
[INFO] [stderr]     |                        ----^^^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:228:29
[INFO] [stderr]     |
[INFO] [stderr] 228 |                         let mut writer_stream =
[INFO] [stderr]     |                             ----^^^^^^^^^^^^^
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Quit,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Client`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Client(ClientID, Event),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Server`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Server(Event),
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TCPCSVServer`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct TCPCSVServer {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TCPServerConInfo`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub struct TCPServerConInfo {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TCPServerConnection`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct TCPServerConnection {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `server_event`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn server_event(&self, e: Event) {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `spawn_server_thread`
[INFO] [stderr]   --> src/tcp_csv_msg_connection.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn spawn_server_thread(&mut self) -> Result<(), std::io::Error> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `garbage_collect`
[INFO] [stderr]   --> src/main.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn garbage_collect(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Again`
[INFO] [stderr]    --> src/main.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     Again,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Crash`
[INFO] [stderr]    --> src/main.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     Crash,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:292:25
[INFO] [stderr]     |
[INFO] [stderr] 292 | ...   c.send("AAAAAAAAAAAAAAAAaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:242:29
[INFO] [stderr]     |
[INFO] [stderr] 242 | ...                   wr_stop_tx.send(None);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:243:29
[INFO] [stderr]     |
[INFO] [stderr] 243 | ...                   writer.join();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:289:25
[INFO] [stderr]     |
[INFO] [stderr] 289 |                         wr_stop_tx.send(None);
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:290:25
[INFO] [stderr]     |
[INFO] [stderr] 290 |                         writer.join();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:308:9
[INFO] [stderr]     |
[INFO] [stderr] 308 |         std::mem::replace(&mut self.reader, Some(reader));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:317:9
[INFO] [stderr]     |
[INFO] [stderr] 317 |         std::mem::replace(&mut self.reader_rx, None);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/tcp_csv_msg_connection.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         std::mem::replace(&mut self.writer_tx, None);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 36 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/datynapse-acba6ccfbd6a7b6c
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a5bc0c6480946f89f6b9eae3638bc13c2db4910782caadf230ecdf7e39fa4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a5bc0c6480946f89f6b9eae3638bc13c2db4910782caadf230ecdf7e39fa4cd", kill_on_drop: false }`
[INFO] [stdout] 6a5bc0c6480946f89f6b9eae3638bc13c2db4910782caadf230ecdf7e39fa4cd
