[INFO] cloning repository https://github.com/michealkeines/TCP-Messenger [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michealkeines/TCP-Messenger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichealkeines%2FTCP-Messenger", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichealkeines%2FTCP-Messenger'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c8e8304cda05e0e016056e43dd0544a2cfcaab66 [INFO] checking michealkeines/TCP-Messenger against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichealkeines%2FTCP-Messenger" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/michealkeines/TCP-Messenger on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/michealkeines/TCP-Messenger [INFO] finished tweaking git repo https://github.com/michealkeines/TCP-Messenger [INFO] tweaked toml for git repo https://github.com/michealkeines/TCP-Messenger written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/michealkeines/TCP-Messenger 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded clap v3.1.18 [INFO] [stderr] Downloaded crossbeam v0.7.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a5c5584c370433aa93c0247c95c62d2198d3a134fd35e1ad439a5d9cfbb1c4ec [INFO] running `Command { std: "docker" "start" "-a" "a5c5584c370433aa93c0247c95c62d2198d3a134fd35e1ad439a5d9cfbb1c4ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a5c5584c370433aa93c0247c95c62d2198d3a134fd35e1ad439a5d9cfbb1c4ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a5c5584c370433aa93c0247c95c62d2198d3a134fd35e1ad439a5d9cfbb1c4ec", kill_on_drop: false }` [INFO] [stdout] a5c5584c370433aa93c0247c95c62d2198d3a134fd35e1ad439a5d9cfbb1c4ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 57498412333f6564be053910228353c68b11fad1a4c7ebaaa24e7dfd256202d5 [INFO] running `Command { std: "docker" "start" "-a" "57498412333f6564be053910228353c68b11fad1a4c7ebaaa24e7dfd256202d5", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling indexmap v1.8.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking clap_lex v0.2.0 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v3.1.18 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking messenger v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/receiver.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/sender.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/server.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read`, `Write`, and `self` [INFO] [stdout] --> src/server.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::{ self, Read, Write }; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/server.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/server.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::marker::Sized` [INFO] [stdout] --> src/server.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::marker::Sized; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::server` [INFO] [stdout] --> src/server.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use crate::server; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/server.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read`, `Write`, and `self` [INFO] [stdout] --> src/server.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::{ self, Read, Write }; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/server.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/server.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::marker::Sized` [INFO] [stdout] --> src/server.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::marker::Sized; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::server` [INFO] [stdout] --> src/server.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use crate::server; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/server.rs:52:29 [INFO] [stdout] | [INFO] [stdout] 52 | let c = temp.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/receiver.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct ReceiveMessage { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 5 | data: Message [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/sender.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct SendMessage { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 5 | data: Message [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/client.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [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] 19 | let _ = stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 83 | lock.write(&msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 83 | let _ = lock.write(&msg); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 96 | let _ = lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 97 | let _ = lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/server.rs:52:29 [INFO] [stdout] | [INFO] [stdout] 52 | let c = temp.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/client.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [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] 19 | let _ = stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 83 | lock.write(&msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 83 | let _ = lock.write(&msg); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 96 | let _ = lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 97 | let _ = lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::stdin` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::io::stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::stdin` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::io::stdin; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:45:25 [INFO] [stdout] | [INFO] [stdout] 45 | let v = std::io::stdin().read_line(&mut line).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/main.rs:45:25 [INFO] [stdout] | [INFO] [stdout] 45 | let v = std::io::stdin().read_line(&mut line).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.18s [INFO] running `Command { std: "docker" "inspect" "57498412333f6564be053910228353c68b11fad1a4c7ebaaa24e7dfd256202d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57498412333f6564be053910228353c68b11fad1a4c7ebaaa24e7dfd256202d5", kill_on_drop: false }` [INFO] [stdout] 57498412333f6564be053910228353c68b11fad1a4c7ebaaa24e7dfd256202d5 [INFO] checking michealkeines/TCP-Messenger against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichealkeines%2FTCP-Messenger" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/michealkeines/TCP-Messenger on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/michealkeines/TCP-Messenger [INFO] finished tweaking git repo https://github.com/michealkeines/TCP-Messenger [INFO] tweaked toml for git repo https://github.com/michealkeines/TCP-Messenger written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/michealkeines/TCP-Messenger 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0cda6916473ebbd5a5dd2f993f429b1343ac3884f04a1dc2d1f57a18818aa423 [INFO] running `Command { std: "docker" "start" "-a" "0cda6916473ebbd5a5dd2f993f429b1343ac3884f04a1dc2d1f57a18818aa423", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0cda6916473ebbd5a5dd2f993f429b1343ac3884f04a1dc2d1f57a18818aa423", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0cda6916473ebbd5a5dd2f993f429b1343ac3884f04a1dc2d1f57a18818aa423", kill_on_drop: false }` [INFO] [stdout] 0cda6916473ebbd5a5dd2f993f429b1343ac3884f04a1dc2d1f57a18818aa423 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5e29e9b1a7bb05b3c390119d8a380f732057ef6bea2f508ee0b0d8fd8c9840d3 [INFO] running `Command { std: "docker" "start" "-a" "5e29e9b1a7bb05b3c390119d8a380f732057ef6bea2f508ee0b0d8fd8c9840d3", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling indexmap v1.8.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking clap_lex v0.2.0 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking clap v3.1.18 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking messenger v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/receiver.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/sender.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/server.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read`, `Write`, and `self` [INFO] [stdout] --> src/server.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::{ self, Read, Write }; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/server.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/server.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::marker::Sized` [INFO] [stdout] --> src/server.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::marker::Sized; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::server` [INFO] [stdout] --> src/server.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use crate::server; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4Addr`, `Shutdown`, `SocketAddrV4`, `SocketAddr`, and `TcpStream` [INFO] [stdout] --> src/server.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | TcpStream, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 4 | Ipv4Addr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | SocketAddr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 6 | SocketAddrV4, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 7 | Shutdown [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Read`, `Write`, and `self` [INFO] [stdout] --> src/server.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | use std::io::{ self, Read, Write }; [INFO] [stdout] | ^^^^ ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cell::RefCell` [INFO] [stdout] --> src/server.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use std::cell::RefCell; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> src/server.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::marker::Sized` [INFO] [stdout] --> src/server.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::marker::Sized; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::server` [INFO] [stdout] --> src/server.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | use crate::server; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/server.rs:52:29 [INFO] [stdout] | [INFO] [stdout] 52 | let c = temp.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/receiver.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct ReceiveMessage { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 5 | data: Message [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/sender.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct SendMessage { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 5 | data: Message [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/message.rs:12:22 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn new(message: T, time: Instant) -> Self { [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 11 | Message { [INFO] [stdout] 12 | message: Box::new(message), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/server.rs:52:29 [INFO] [stdout] | [INFO] [stdout] 52 | let c = temp.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [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/client.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [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] 19 | let _ = stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/server.rs:33:23 [INFO] [stdout] | [INFO] [stdout] 29 | let listener = TcpListener::bind(ip_port).unwrap(); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 33 | listener: Arc::new(listener), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/server.rs:34:22 [INFO] [stdout] | [INFO] [stdout] 29 | let listener = TcpListener::bind(ip_port).unwrap(); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 34 | clients: Arc::new(Mutex::new(vec![])) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 83 | lock.write(&msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 83 | let _ = lock.write(&msg); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 96 | let _ = lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 97 | let _ = lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/message.rs:12:22 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn new(message: T, time: Instant) -> Self { [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 11 | Message { [INFO] [stdout] 12 | message: Box::new(message), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `messenger` (lib) due to 4 previous errors; 16 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/client.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [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] 19 | let _ = stream.set_read_timeout(Some(std::time::Duration::from_millis(300))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/server.rs:33:23 [INFO] [stdout] | [INFO] [stdout] 29 | let listener = TcpListener::bind(ip_port).unwrap(); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 33 | listener: Arc::new(listener), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/server.rs:34:22 [INFO] [stdout] | [INFO] [stdout] 29 | let listener = TcpListener::bind(ip_port).unwrap(); [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 34 | clients: Arc::new(Mutex::new(vec![])) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 83 | lock.write(&msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 83 | let _ = lock.write(&msg); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:96:13 [INFO] [stdout] | [INFO] [stdout] 96 | lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 96 | let _ = lock_stream.set_read_timeout(Some(time::Duration::from_millis(150))); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/user.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 97 | let _ = lock_stream.read_exact(&mut temp[..]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `messenger` (lib test) due to 4 previous errors; 12 warnings emitted [INFO] running `Command { std: "docker" "inspect" "5e29e9b1a7bb05b3c390119d8a380f732057ef6bea2f508ee0b0d8fd8c9840d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e29e9b1a7bb05b3c390119d8a380f732057ef6bea2f508ee0b0d8fd8c9840d3", kill_on_drop: false }` [INFO] [stdout] 5e29e9b1a7bb05b3c390119d8a380f732057ef6bea2f508ee0b0d8fd8c9840d3