[INFO] updating cached repository https://github.com/nrobinson2000/rust-chatroom [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] edf4a3f510fe2e8908bc6c094dd0090b0d17fed6 [INFO] checking nrobinson2000/rust-chatroom against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrobinson2000%2Frust-chatroom" "/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/nrobinson2000/rust-chatroom on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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-3/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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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] 42907248a7eee3c2a486132c798f088a6879f9a43bf6f70f4c45781d6d1f96fb [INFO] running `"docker" "start" "-a" "42907248a7eee3c2a486132c798f088a6879f9a43bf6f70f4c45781d6d1f96fb"` [INFO] [stderr] Checking chatroom v0.1.0 (/opt/rustwide/workdir) [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:134:12 [INFO] [stderr] | [INFO] [stderr] 134 | 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:137:12 [INFO] [stderr] | [INFO] [stderr] 137 | 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:192:12 [INFO] [stderr] | [INFO] [stderr] 192 | 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:196:12 [INFO] [stderr] | [INFO] [stderr] 196 | pub fn getUsername(self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `get_username` [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:134:12 [INFO] [stderr] | [INFO] [stderr] 134 | 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:137:12 [INFO] [stderr] | [INFO] [stderr] 137 | 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:192:12 [INFO] [stderr] | [INFO] [stderr] 192 | 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:196:12 [INFO] [stderr] | [INFO] [stderr] 196 | pub fn getUsername(self) -> String { [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `get_username` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/client.rs:48:17 [INFO] [stderr] | [INFO] [stderr] 48 | 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:75:13 [INFO] [stderr] | [INFO] [stderr] 75 | 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: `temp_stream` [INFO] [stderr] --> src/bin/server.rs:71:21 [INFO] [stderr] | [INFO] [stderr] 71 | let mut temp_stream = stream.try_clone().unwrap(); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_temp_stream` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `temp_username` [INFO] [stderr] --> src/bin/server.rs:72:21 [INFO] [stderr] | [INFO] [stderr] 72 | let mut temp_username = username.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_temp_username` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message_contents` [INFO] [stderr] --> src/bin/server.rs:145:13 [INFO] [stderr] | [INFO] [stderr] 145 | let message_contents = message.clone().getMessage(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_message_contents` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/server.rs:71:17 [INFO] [stderr] | [INFO] [stderr] 71 | 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:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | 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:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let mut clients = Vec::new(); [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:123:53 [INFO] [stderr] | [INFO] [stderr] 123 | 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:130:13 [INFO] [stderr] | [INFO] [stderr] 130 | 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:102:4 [INFO] [stderr] | [INFO] [stderr] 102 | 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:117:5 [INFO] [stderr] | [INFO] [stderr] 117 | stream.write(hello_message.as_bytes()); [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:166:5 [INFO] [stderr] | [INFO] [stderr] 166 | 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: unused variable: `temp_stream` [INFO] [stderr] --> src/bin/server.rs:71:21 [INFO] [stderr] | [INFO] [stderr] 71 | let mut temp_stream = stream.try_clone().unwrap(); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_temp_stream` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `temp_username` [INFO] [stderr] --> src/bin/server.rs:72:21 [INFO] [stderr] | [INFO] [stderr] 72 | let mut temp_username = username.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_temp_username` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message_contents` [INFO] [stderr] --> src/bin/server.rs:145:13 [INFO] [stderr] | [INFO] [stderr] 145 | let message_contents = message.clone().getMessage(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_message_contents` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/server.rs:71:17 [INFO] [stderr] | [INFO] [stderr] 71 | 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:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | 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:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let mut clients = Vec::new(); [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:123:53 [INFO] [stderr] | [INFO] [stderr] 123 | 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:130:13 [INFO] [stderr] | [INFO] [stderr] 130 | let mut stream = client.getStream(); [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/client.rs:48:17 [INFO] [stderr] | [INFO] [stderr] 48 | 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: function is never used: `add_client` [INFO] [stderr] --> src/bin/server.rs:102:4 [INFO] [stderr] | [INFO] [stderr] 102 | 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:117:5 [INFO] [stderr] | [INFO] [stderr] 117 | stream.write(hello_message.as_bytes()); [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: variable `vecInput` should have a snake case name [INFO] [stderr] --> src/bin/client.rs:75:13 [INFO] [stderr] | [INFO] [stderr] 75 | 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 `std::result::Result` that must be used [INFO] [stderr] --> src/bin/server.rs:166:5 [INFO] [stderr] | [INFO] [stderr] 166 | 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] Finished dev [unoptimized + debuginfo] target(s) in 3.01s [INFO] running `"docker" "inspect" "42907248a7eee3c2a486132c798f088a6879f9a43bf6f70f4c45781d6d1f96fb"` [INFO] running `"docker" "rm" "-f" "42907248a7eee3c2a486132c798f088a6879f9a43bf6f70f4c45781d6d1f96fb"` [INFO] [stdout] 42907248a7eee3c2a486132c798f088a6879f9a43bf6f70f4c45781d6d1f96fb