[INFO] cloning repository https://github.com/leetie/Fe-chat-server [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leetie/Fe-chat-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetie%2FFe-chat-server", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetie%2FFe-chat-server'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c86cdfc6d376ab13fd2b3ffe3413abbe68115f92 [INFO] building leetie/Fe-chat-server against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleetie%2FFe-chat-server" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/leetie/Fe-chat-server on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/leetie/Fe-chat-server [INFO] finished tweaking git repo https://github.com/leetie/Fe-chat-server [INFO] tweaked toml for git repo https://github.com/leetie/Fe-chat-server written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/leetie/Fe-chat-server 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 99e143ccf41eff583b4bc2faa2e4db4213378ffda0b7193fdb756a27fb5af14b [INFO] running `Command { std: "docker" "start" "-a" "99e143ccf41eff583b4bc2faa2e4db4213378ffda0b7193fdb756a27fb5af14b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "99e143ccf41eff583b4bc2faa2e4db4213378ffda0b7193fdb756a27fb5af14b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99e143ccf41eff583b4bc2faa2e4db4213378ffda0b7193fdb756a27fb5af14b", kill_on_drop: false }` [INFO] [stdout] 99e143ccf41eff583b4bc2faa2e4db4213378ffda0b7193fdb756a27fb5af14b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e525e3bb5c4444eb3e39ba8f746ac1540e9cf5089829c27974f7a9f6ce78fb97 [INFO] running `Command { std: "docker" "start" "-a" "e525e3bb5c4444eb3e39ba8f746ac1540e9cf5089829c27974f7a9f6ce78fb97", kill_on_drop: false }` [INFO] [stderr] Compiling tcp-server v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `message` is never read [INFO] [stdout] --> src/lib.rs:2:3 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Config { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 2 | message: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/bin/client.rs:1:35 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{BufRead, BufReader, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stream_tx_thread` [INFO] [stdout] --> src/bin/client.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | let stream_tx_thread = thread::spawn(move || loop { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_tx_thread` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/client.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | let mut stream = TcpStream::connect("0.0.0.0:2222").unwrap(); [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: function `get_message` is never used [INFO] [stdout] --> src/bin/client.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn get_message() -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/bin/main.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | io::{self, BufRead, BufReader, Read, Write}, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/client.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | msg_tx.send(b"Hello!\n"); [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] 41 | let _ = msg_tx.send(b"Hello!\n"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Message` is never constructed [INFO] [stdout] --> src/bin/main.rs:97:8 [INFO] [stdout] | [INFO] [stdout] 97 | struct Message<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Client` is never constructed [INFO] [stdout] --> src/bin/main.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 103 | struct Client { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ClientConfig` is never constructed [INFO] [stdout] --> src/bin/main.rs:109:8 [INFO] [stdout] | [INFO] [stdout] 109 | struct ClientConfig { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `DisplayColor` is never used [INFO] [stdout] --> src/bin/main.rs:114:6 [INFO] [stdout] | [INFO] [stdout] 114 | enum DisplayColor { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.13s [INFO] running `Command { std: "docker" "inspect" "e525e3bb5c4444eb3e39ba8f746ac1540e9cf5089829c27974f7a9f6ce78fb97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e525e3bb5c4444eb3e39ba8f746ac1540e9cf5089829c27974f7a9f6ce78fb97", kill_on_drop: false }` [INFO] [stdout] e525e3bb5c4444eb3e39ba8f746ac1540e9cf5089829c27974f7a9f6ce78fb97 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cd6d5a1be4e2f92c4fd879df9883a4a91e5c2f4ddb5c162639e6bbf98d3febfd [INFO] running `Command { std: "docker" "start" "-a" "cd6d5a1be4e2f92c4fd879df9883a4a91e5c2f4ddb5c162639e6bbf98d3febfd", kill_on_drop: false }` [INFO] [stdout] warning: field `message` is never read [INFO] [stdout] --> src/lib.rs:2:3 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Config { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 2 | message: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling tcp-server v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `message` is never read [INFO] [stdout] --> src/lib.rs:2:3 [INFO] [stdout] | [INFO] [stdout] 1 | pub struct Config { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] 2 | message: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/bin/client.rs:1:35 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io::{BufRead, BufReader, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/bin/main.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | io::{self, BufRead, BufReader, Read, Write}, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stream_tx_thread` [INFO] [stdout] --> src/bin/client.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | let stream_tx_thread = thread::spawn(move || loop { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream_tx_thread` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/client.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | let mut stream = TcpStream::connect("0.0.0.0:2222").unwrap(); [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: function `get_message` is never used [INFO] [stdout] --> src/bin/client.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn get_message() -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/client.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 41 | msg_tx.send(b"Hello!\n"); [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] 41 | let _ = msg_tx.send(b"Hello!\n"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Message` is never constructed [INFO] [stdout] --> src/bin/main.rs:97:8 [INFO] [stdout] | [INFO] [stdout] 97 | struct Message<'a> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Client` is never constructed [INFO] [stdout] --> src/bin/main.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 103 | struct Client { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ClientConfig` is never constructed [INFO] [stdout] --> src/bin/main.rs:109:8 [INFO] [stdout] | [INFO] [stdout] 109 | struct ClientConfig { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `DisplayColor` is never used [INFO] [stdout] --> src/bin/main.rs:114:6 [INFO] [stdout] | [INFO] [stdout] 114 | enum DisplayColor { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s [INFO] running `Command { std: "docker" "inspect" "cd6d5a1be4e2f92c4fd879df9883a4a91e5c2f4ddb5c162639e6bbf98d3febfd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd6d5a1be4e2f92c4fd879df9883a4a91e5c2f4ddb5c162639e6bbf98d3febfd", kill_on_drop: false }` [INFO] [stdout] cd6d5a1be4e2f92c4fd879df9883a4a91e5c2f4ddb5c162639e6bbf98d3febfd