[INFO] cloning repository https://github.com/mikemehl/CrabChat [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikemehl/CrabChat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikemehl%2FCrabChat"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikemehl%2FCrabChat'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d6fc862646aca5c4abaf0ffcf7e1a88fd8fe9041 [INFO] checking mikemehl/CrabChat against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikemehl%2FCrabChat" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mikemehl/CrabChat on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/mikemehl/CrabChat [INFO] finished tweaking git repo https://github.com/mikemehl/CrabChat [INFO] tweaked toml for git repo https://github.com/mikemehl/CrabChat written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/mikemehl/CrabChat already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 37ad271cf414476ea2c5b04ec15a782afe4734e690723587292e7338be69c756 [INFO] running `"docker" "start" "-a" "37ad271cf414476ea2c5b04ec15a782afe4734e690723587292e7338be69c756"` [INFO] [stderr] Checking CrabChat v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused imports: `Arc`, `Mutex` [INFO] [stderr] --> src/main.rs:3:21 [INFO] [stderr] | [INFO] [stderr] 3 | use std::sync::{Arc, Mutex, mpsc}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stderr] --> src/main.rs:75:18 [INFO] [stderr] | [INFO] [stderr] 75 | match(msg) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stderr] --> src/main.rs:91:14 [INFO] [stderr] | [INFO] [stderr] 91 | match(socket_msg) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stderr] --> src/main.rs:124:22 [INFO] [stderr] | [INFO] [stderr] 124 | match(msg) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Arc`, `Mutex` [INFO] [stderr] --> src/main.rs:3:21 [INFO] [stderr] | [INFO] [stderr] 3 | use std::sync::{Arc, Mutex, mpsc}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stderr] --> src/main.rs:75:18 [INFO] [stderr] | [INFO] [stderr] 75 | match(msg) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stderr] --> src/main.rs:91:14 [INFO] [stderr] | [INFO] [stderr] 91 | match(socket_msg) [INFO] [stderr] | ^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression [INFO] [stderr] --> src/main.rs:124:22 [INFO] [stderr] | [INFO] [stderr] 124 | match(msg) [INFO] [stderr] | ^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:38:21 [INFO] [stderr] | [INFO] [stderr] 38 | Err(e) => { println!("ERROR CONNECTING"); } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:38:21 [INFO] [stderr] | [INFO] [stderr] 38 | Err(e) => { println!("ERROR CONNECTING"); } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:78:42 [INFO] [stderr] | [INFO] [stderr] 78 | ThreadMsg::NewConnection(e) => { println!("OH NOES"); } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `msg` [INFO] [stderr] --> src/main.rs:93:16 [INFO] [stderr] | [INFO] [stderr] 93 | Ok(msg) => [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:78:42 [INFO] [stderr] | [INFO] [stderr] 78 | ThreadMsg::NewConnection(e) => { println!("OH NOES"); } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `msg` [INFO] [stderr] --> src/main.rs:93:16 [INFO] [stderr] | [INFO] [stderr] 93 | Ok(msg) => [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:111:17 [INFO] [stderr] | [INFO] [stderr] 111 | Err(e) => { println!("SOMETHING EVIL"); } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `msg` [INFO] [stderr] --> src/main.rs:127:43 [INFO] [stderr] | [INFO] [stderr] 127 | ThreadMsg::NewMessage(msg) => [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:35:25 [INFO] [stderr] | [INFO] [stderr] 35 | let mut tx_clone = tx.clone(); [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/main.rs:89:13 [INFO] [stderr] | [INFO] [stderr] 89 | let mut data_buf = [0u8; 1024]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: crate `CrabChat` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `crab_chat` [INFO] [stderr] [INFO] [stderr] warning: module `CrabChatServer` should have a snake case name [INFO] [stderr] --> src/main.rs:1:9 [INFO] [stderr] | [INFO] [stderr] 1 | pub mod CrabChatServer [INFO] [stderr] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `crab_chat_server` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:143:5 [INFO] [stderr] | [INFO] [stderr] 143 | CrabChatServer::start_server(); [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/main.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | tx_write.send(new_connection_msg); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:111:17 [INFO] [stderr] | [INFO] [stderr] 111 | Err(e) => { println!("SOMETHING EVIL"); } [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:77:49 [INFO] [stderr] | [INFO] [stderr] 77 | ThreadMsg::NewMessage(msg) => { stream.write(msg.as_bytes()); }, [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/main.rs:100:21 [INFO] [stderr] | [INFO] [stderr] 100 | tx_write.send(out_msg); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `msg` [INFO] [stderr] --> src/main.rs:127:43 [INFO] [stderr] | [INFO] [stderr] 127 | ThreadMsg::NewMessage(msg) => [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_msg` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:35:25 [INFO] [stderr] | [INFO] [stderr] 35 | let mut tx_clone = tx.clone(); [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/main.rs:89:13 [INFO] [stderr] | [INFO] [stderr] 89 | let mut data_buf = [0u8; 1024]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: crate `CrabChat` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `crab_chat` [INFO] [stderr] [INFO] [stderr] warning: module `CrabChatServer` should have a snake case name [INFO] [stderr] --> src/main.rs:1:9 [INFO] [stderr] | [INFO] [stderr] 1 | pub mod CrabChatServer [INFO] [stderr] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `crab_chat_server` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:143:5 [INFO] [stderr] | [INFO] [stderr] 143 | CrabChatServer::start_server(); [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/main.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | tx_write.send(new_connection_msg); [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/main.rs:77:49 [INFO] [stderr] | [INFO] [stderr] 77 | ThreadMsg::NewMessage(msg) => { stream.write(msg.as_bytes()); }, [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/main.rs:100:21 [INFO] [stderr] | [INFO] [stderr] 100 | tx_write.send(out_msg); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 17 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 17 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `"docker" "inspect" "37ad271cf414476ea2c5b04ec15a782afe4734e690723587292e7338be69c756"` [INFO] running `"docker" "rm" "-f" "37ad271cf414476ea2c5b04ec15a782afe4734e690723587292e7338be69c756"` [INFO] [stdout] 37ad271cf414476ea2c5b04ec15a782afe4734e690723587292e7338be69c756