[INFO] fetching crate goxoy-socket-server 0.1.2...
[INFO] checking goxoy-socket-server-0.1.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate goxoy-socket-server 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate goxoy-socket-server 0.1.2 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate goxoy-socket-server 0.1.2
[INFO] finished tweaking crates.io crate goxoy-socket-server 0.1.2
[INFO] tweaked toml for crates.io crate goxoy-socket-server 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] [stderr]       Adding goxoy-address-parser v0.0.9 (available: v0.0.10)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4917fd59a6d42c2a5cb95ed682faf6e6517be7d5eb9e894e22e5b48b6720a78
[INFO] running `Command { std: "docker" "start" "-a" "a4917fd59a6d42c2a5cb95ed682faf6e6517be7d5eb9e894e22e5b48b6720a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4917fd59a6d42c2a5cb95ed682faf6e6517be7d5eb9e894e22e5b48b6720a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4917fd59a6d42c2a5cb95ed682faf6e6517be7d5eb9e894e22e5b48b6720a78", kill_on_drop: false }`
[INFO] [stdout] a4917fd59a6d42c2a5cb95ed682faf6e6517be7d5eb9e894e22e5b48b6720a78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3038f90c2a6f1a18a2fa4c2fa165bb32b6efa267fe17eb5622badc7e17b91e5
[INFO] running `Command { std: "docker" "start" "-a" "f3038f90c2a6f1a18a2fa4c2fa165bb32b6efa267fe17eb5622badc7e17b91e5", kill_on_drop: false }`
[INFO] [stderr]     Checking goxoy-address-parser v0.0.9
[INFO] [stderr]     Checking goxoy-socket-client v0.1.9
[INFO] [stderr]     Checking goxoy-socket-server v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/socket_server.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | /         loop {
[INFO] [stdout] 149 | |             if let Ok((mut socket, addr)) = server.accept() {
[INFO] [stdout] 150 | |                 if on_new_client_fn.is_some() {
[INFO] [stdout] 151 | |                     on_new_client_fn.unwrap()(
[INFO] [stdout] ...   |
[INFO] [stdout] 206 | |             thread::sleep(::std::time::Duration::from_millis(100));
[INFO] [stdout] 207 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 208 |           return true;
[INFO] [stdout]     |           ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer_addr`
[INFO] [stdout]    --> src/socket_server.rs:111:27
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn send(&mut self,peer_addr:String, data: Vec<u8>)->bool{
[INFO] [stdout]     |                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peer_addr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/socket_server.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             self.tx.as_mut().unwrap().send(data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let _ = self.tx.as_mut().unwrap().send(data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/socket_server.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | /         loop {
[INFO] [stdout] 149 | |             if let Ok((mut socket, addr)) = server.accept() {
[INFO] [stdout] 150 | |                 if on_new_client_fn.is_some() {
[INFO] [stdout] 151 | |                     on_new_client_fn.unwrap()(
[INFO] [stdout] ...   |
[INFO] [stdout] 206 | |             thread::sleep(::std::time::Duration::from_millis(100));
[INFO] [stdout] 207 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 208 |           return true;
[INFO] [stdout]     |           ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peer_addr`
[INFO] [stdout]    --> src/socket_server.rs:111:27
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn send(&mut self,peer_addr:String, data: Vec<u8>)->bool{
[INFO] [stdout]     |                           ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_peer_addr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/socket_server.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             self.tx.as_mut().unwrap().send(data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let _ = self.tx.as_mut().unwrap().send(data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "f3038f90c2a6f1a18a2fa4c2fa165bb32b6efa267fe17eb5622badc7e17b91e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3038f90c2a6f1a18a2fa4c2fa165bb32b6efa267fe17eb5622badc7e17b91e5", kill_on_drop: false }`
[INFO] [stdout] f3038f90c2a6f1a18a2fa4c2fa165bb32b6efa267fe17eb5622badc7e17b91e5