[INFO] cloning repository https://github.com/nrobinson2000/rust-chatroom [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nrobinson2000/rust-chatroom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrobinson2000%2Frust-chatroom"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrobinson2000%2Frust-chatroom'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6a17052b40693e92fa007b055353e3428b0bf141 [INFO] checking nrobinson2000/rust-chatroom against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrobinson2000%2Frust-chatroom" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nrobinson2000/rust-chatroom 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/nrobinson2000/rust-chatroom [INFO] finished tweaking git repo https://github.com/nrobinson2000/rust-chatroom [INFO] tweaked toml for git repo https://github.com/nrobinson2000/rust-chatroom written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/nrobinson2000/rust-chatroom 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] c19cecc5cf69c14d8d4e428c505d9e7a85c41e41d9b60ad961d8abbff67216c5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "c19cecc5cf69c14d8d4e428c505d9e7a85c41e41d9b60ad961d8abbff67216c5"` [INFO] [stderr] Checking chatroom v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/lib.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Borrow` [INFO] [stderr] --> src/lib.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::borrow::Borrow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `id` [INFO] [stderr] --> src/lib.rs:79:5 [INFO] [stderr] | [INFO] [stderr] 79 | id: usize, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `getUsername` should have a snake case name [INFO] [stderr] --> src/lib.rs:132:12 [INFO] [stderr] | [INFO] [stderr] 132 | pub fn getUsername(self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `get_username` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `getMessage` should have a snake case name [INFO] [stderr] --> src/lib.rs:135:12 [INFO] [stderr] | [INFO] [stderr] 135 | pub fn getMessage(self) -> String { [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `get_message` [INFO] [stderr] [INFO] [stderr] warning: method `getFront` should have a snake case name [INFO] [stderr] --> src/lib.rs:160:12 [INFO] [stderr] | [INFO] [stderr] 160 | pub fn getFront(&mut self) -> &ChatMessage { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `get_front` [INFO] [stderr] [INFO] [stderr] warning: method `isEmpty` should have a snake case name [INFO] [stderr] --> src/lib.rs:168:12 [INFO] [stderr] | [INFO] [stderr] 168 | pub fn isEmpty(&mut self) -> bool { [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `is_empty` [INFO] [stderr] [INFO] [stderr] warning: method `getStream` should have a snake case name [INFO] [stderr] --> src/lib.rs:196:12 [INFO] [stderr] | [INFO] [stderr] 196 | pub fn getStream(&self) -> &TcpStream { [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `get_stream` [INFO] [stderr] [INFO] [stderr] warning: method `getUsername` should have a snake case name [INFO] [stderr] --> src/lib.rs:200:12 [INFO] [stderr] | [INFO] [stderr] 200 | pub fn getUsername(self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `get_username` [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: field is never read: `id` [INFO] [stderr] --> src/lib.rs:79:5 [INFO] [stderr] | [INFO] [stderr] 79 | id: usize, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `getUsername` should have a snake case name [INFO] [stderr] --> src/lib.rs:132:12 [INFO] [stderr] | [INFO] [stderr] 132 | pub fn getUsername(self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `get_username` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method `getMessage` should have a snake case name [INFO] [stderr] --> src/lib.rs:135:12 [INFO] [stderr] | [INFO] [stderr] 135 | pub fn getMessage(self) -> String { [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `get_message` [INFO] [stderr] [INFO] [stderr] warning: method `getFront` should have a snake case name [INFO] [stderr] --> src/lib.rs:160:12 [INFO] [stderr] | [INFO] [stderr] 160 | pub fn getFront(&mut self) -> &ChatMessage { [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `get_front` [INFO] [stderr] [INFO] [stderr] warning: method `isEmpty` should have a snake case name [INFO] [stderr] --> src/lib.rs:168:12 [INFO] [stderr] | [INFO] [stderr] 168 | pub fn isEmpty(&mut self) -> bool { [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `is_empty` [INFO] [stderr] [INFO] [stderr] warning: method `getStream` should have a snake case name [INFO] [stderr] --> src/lib.rs:196:12 [INFO] [stderr] | [INFO] [stderr] 196 | pub fn getStream(&self) -> &TcpStream { [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `get_stream` [INFO] [stderr] [INFO] [stderr] warning: method `getUsername` should have a snake case name [INFO] [stderr] --> src/lib.rs:200:12 [INFO] [stderr] | [INFO] [stderr] 200 | pub fn getUsername(self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `get_username` [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/bin/server.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | Err(error) => {} [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/bin/server.rs:59:17 [INFO] [stderr] | [INFO] [stderr] 59 | Err(error) => {} [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/server.rs:79:17 [INFO] [stderr] | [INFO] [stderr] 79 | let mut temp_stream = stream.try_clone().unwrap(); [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/bin/server.rs:80:17 [INFO] [stderr] | [INFO] [stderr] 80 | let mut temp_username = username.clone(); [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/bin/server.rs:122:53 [INFO] [stderr] | [INFO] [stderr] 122 | fn handle_outgoing_messages(clients: &[UserStream], mut message: &ChatMessage) { [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/bin/server.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 128 | let mut stream = client.getStream(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `add_client` [INFO] [stderr] --> src/bin/server.rs:96:4 [INFO] [stderr] | [INFO] [stderr] 96 | fn add_client(clients: &mut Vec, stream: TcpStream, username: String) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/server.rs:83:13 [INFO] [stderr] | [INFO] [stderr] 83 | client_tx1.send(UserStream::new(temp_stream, temp_username)); [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/bin/server.rs:116:5 [INFO] [stderr] | [INFO] [stderr] 116 | stream.write(hello_message.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/bin/server.rs:157:5 [INFO] [stderr] | [INFO] [stderr] 157 | stream.write(message.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: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/client.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | fn read_handler(mut stream: &TcpStream) { [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 `vecInput` should have a snake case name [INFO] [stderr] --> src/bin/client.rs:82:13 [INFO] [stderr] | [INFO] [stderr] 82 | let mut vecInput = vec![]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `vec_input` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/bin/server.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | Err(error) => {} [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `error` [INFO] [stderr] --> src/bin/server.rs:59:17 [INFO] [stderr] | [INFO] [stderr] 59 | Err(error) => {} [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_error` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/server.rs:79:17 [INFO] [stderr] | [INFO] [stderr] 79 | let mut temp_stream = stream.try_clone().unwrap(); [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/bin/server.rs:80:17 [INFO] [stderr] | [INFO] [stderr] 80 | let mut temp_username = username.clone(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/server.rs:122:53 [INFO] [stderr] | [INFO] [stderr] 122 | fn handle_outgoing_messages(clients: &[UserStream], mut message: &ChatMessage) { [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/bin/server.rs:128:13 [INFO] [stderr] | [INFO] [stderr] 128 | let mut stream = client.getStream(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `add_client` [INFO] [stderr] --> src/bin/server.rs:96:4 [INFO] [stderr] | [INFO] [stderr] 96 | fn add_client(clients: &mut Vec, stream: TcpStream, username: String) { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/bin/server.rs:83:13 [INFO] [stderr] | [INFO] [stderr] 83 | client_tx1.send(UserStream::new(temp_stream, temp_username)); [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/bin/server.rs:116:5 [INFO] [stderr] | [INFO] [stderr] 116 | stream.write(hello_message.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/bin/server.rs:157:5 [INFO] [stderr] | [INFO] [stderr] 157 | stream.write(message.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: variable does not need to be mutable [INFO] [stderr] --> src/bin/client.rs:51:17 [INFO] [stderr] | [INFO] [stderr] 51 | fn read_handler(mut stream: &TcpStream) { [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 `vecInput` should have a snake case name [INFO] [stderr] --> src/bin/client.rs:82:13 [INFO] [stderr] | [INFO] [stderr] 82 | let mut vecInput = vec![]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `vec_input` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.58s [INFO] running `"docker" "inspect" "c19cecc5cf69c14d8d4e428c505d9e7a85c41e41d9b60ad961d8abbff67216c5"` [INFO] running `"docker" "rm" "-f" "c19cecc5cf69c14d8d4e428c505d9e7a85c41e41d9b60ad961d8abbff67216c5"` [INFO] [stdout] c19cecc5cf69c14d8d4e428c505d9e7a85c41e41d9b60ad961d8abbff67216c5