[INFO] cloning repository https://github.com/SnitzelKlaus/mqtt-broker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SnitzelKlaus/mqtt-broker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnitzelKlaus%2Fmqtt-broker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnitzelKlaus%2Fmqtt-broker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1187e43c8ea6fbec68385957d94501a8430a50dc
[INFO] checking SnitzelKlaus/mqtt-broker/1187e43c8ea6fbec68385957d94501a8430a50dc against master#f8192ba0d00bbbc58a10c45823ba010e98ea4474 for pr-130531
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnitzelKlaus%2Fmqtt-broker" "/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/SnitzelKlaus/mqtt-broker on toolchain f8192ba0d00bbbc58a10c45823ba010e98ea4474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8192ba0d00bbbc58a10c45823ba010e98ea4474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SnitzelKlaus/mqtt-broker
[INFO] finished tweaking git repo https://github.com/SnitzelKlaus/mqtt-broker
[INFO] tweaked toml for git repo https://github.com/SnitzelKlaus/mqtt-broker written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SnitzelKlaus/mqtt-broker 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" "+f8192ba0d00bbbc58a10c45823ba010e98ea4474" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f8192ba0d00bbbc58a10c45823ba010e98ea4474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9375a5e751c0e5bf3a6315863428af15994a7e4bf733de3197b83d8f4689a78d
[INFO] running `Command { std: "docker" "start" "-a" "9375a5e751c0e5bf3a6315863428af15994a7e4bf733de3197b83d8f4689a78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9375a5e751c0e5bf3a6315863428af15994a7e4bf733de3197b83d8f4689a78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9375a5e751c0e5bf3a6315863428af15994a7e4bf733de3197b83d8f4689a78d", kill_on_drop: false }`
[INFO] [stdout] 9375a5e751c0e5bf3a6315863428af15994a7e4bf733de3197b83d8f4689a78d
[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" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f8192ba0d00bbbc58a10c45823ba010e98ea4474" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c8d0396287abcafffe5ad9e95394edd338fcdd433f6f90fd884749bb250eb1a
[INFO] running `Command { std: "docker" "start" "-a" "9c8d0396287abcafffe5ad9e95394edd338fcdd433f6f90fd884749bb250eb1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking mqtt_broker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TcpListener`
[INFO] [stdout]  --> src/mqtt/broker_state.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/mqtt/create_client.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     ;
[INFO] [stdout]     |     ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PrimitiveDateTime`
[INFO] [stdout]  --> src/mqtt/state_thread.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use time::{OffsetDateTime, PrimitiveDateTime};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpListener`
[INFO] [stdout]  --> src/mqtt/broker_state.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::{TcpListener, TcpStream};
[INFO] [stdout]   |                ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/mqtt/create_client.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     ;
[INFO] [stdout]     |     ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PrimitiveDateTime`
[INFO] [stdout]  --> src/mqtt/state_thread.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | use time::{OffsetDateTime, PrimitiveDateTime};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_index_in_buffer` is never read
[INFO] [stdout]   --> src/mqtt/create_client.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     current_index_in_buffer = new_index;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/mqtt/state_thread.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let now = OffsetDateTime::now_utc();
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_index_in_buffer` is never read
[INFO] [stdout]   --> src/mqtt/create_client.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     current_index_in_buffer = new_index;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_password` is never used
[INFO] [stdout]    --> src/mqtt/create_client.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn extract_password(buffer: &[u8], password_flag: bool, current_index_in_buffer: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_username` is never used
[INFO] [stdout]    --> src/mqtt/create_client.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn extract_username(buffer: &[u8], username_flag: bool, mut current_index_in_buffer: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/mqtt/state_thread.rs:91:21
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let now = OffsetDateTime::now_utc();
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_password` is never used
[INFO] [stdout]    --> src/mqtt/create_client.rs:160:4
[INFO] [stdout]     |
[INFO] [stdout] 160 | fn extract_password(buffer: &[u8], password_flag: bool, current_index_in_buffer: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_username` is never used
[INFO] [stdout]    --> src/mqtt/create_client.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn extract_username(buffer: &[u8], username_flag: bool, mut current_index_in_buffer: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> tests/common/mqtt_commands_utils.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 |     if(qos > 0){
[INFO] [stdout]    |       ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     if(qos > 0){
[INFO] [stdout] 79 +     if qos > 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> tests/common/mqtt_commands_utils.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 |     if(qos > 0){
[INFO] [stdout]    |       ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     if(qos > 0){
[INFO] [stdout] 79 +     if qos > 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> tests/common/mqtt_commands_utils.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 |     if(qos > 0){
[INFO] [stdout]    |       ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     if(qos > 0){
[INFO] [stdout] 79 +     if qos > 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> tests/publish_tests.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> tests/common/mqtt_commands_utils.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 |     if(qos > 0){
[INFO] [stdout]    |       ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     if(qos > 0){
[INFO] [stdout] 79 +     if qos > 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> tests/publish_tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `connack_vec` and `connect_vec`
[INFO] [stdout]  --> tests/subscribe_tests.rs:3:42
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::common::mqtt_commands_utils::{connack_vec, connect_vec, suback_vec, subscribe_vec};
[INFO] [stdout]   |                                          ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> tests/common/mqtt_commands_utils.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 |     if(qos > 0){
[INFO] [stdout]    |       ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     if(qos > 0){
[INFO] [stdout] 79 +     if qos > 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]  --> tests/keep_alive_tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::thread::sleep;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> tests/keep_alive_tests.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `common::test_utils::connect_to_broker`
[INFO] [stdout]  --> tests/keep_alive_tests.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use common::test_utils::connect_to_broker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `connack_vec` and `connect_vec`
[INFO] [stdout]  --> tests/keep_alive_tests.rs:7:42
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::common::mqtt_commands_utils::{connack_vec, connect_vec,};
[INFO] [stdout]   |                                          ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::common::test_utils::start_test_broker`
[INFO] [stdout]  --> tests/keep_alive_tests.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::common::test_utils::start_test_broker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::common::test_client::TestClient`
[INFO] [stdout]  --> tests/keep_alive_tests.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::common::test_client::TestClient;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_to_broker` is never used
[INFO] [stdout]   --> tests/common/test_utils.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn connect_to_broker(mut client: TestClient, client_identifier: String, keep_alive: u16) -> TestClient{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetazIAIA6"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `subscribe_to_topics` is never used
[INFO] [stdout]   --> tests/common/test_utils.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn subscribe_to_topics(mut client: TestClient, package_identifier: u16, topics: Vec<String>, topic_qoses: Vec<u8>) -> TestClient{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `publish_vec` is never used
[INFO] [stdout]   --> tests/common/mqtt_commands_utils.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn publish_vec(topic_name: String, qos: u8, message: String, packet_identifier: u16) -> Vec<u8>{
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestClient` is never constructed
[INFO] [stdout]  --> tests/common/test_client.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct TestClient {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `connect`, `send_message`, `read_response`, and `close` are never used
[INFO] [stdout]   --> tests/common/test_client.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl TestClient {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn connect(addr: &str) -> std::io::Result<TestClient> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn send_message(&mut self, message: &[u8]) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn read_response(&mut self) -> std::io::Result<Vec<u8>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn close(&mut self) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `connect_to_broker` is never used
[INFO] [stdout]   --> tests/common/test_utils.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn connect_to_broker(mut client: TestClient, client_identifier: String, keep_alive: u16) -> TestClient{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqtt_broker` (test "publish_tests") due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mqtt_broker` (test "integration_test_connection"); 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f8192ba0d00bbbc58a10c45823ba010e98ea4474/bin/rustc --crate-name integration_test_connection --edition=2021 tests/integration_test_connection.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=c23dbc7c9568a26c -C extra-filename=-c23dbc7c9568a26c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern mqtt_broker=/opt/rustwide/target/debug/deps/libmqtt_broker-7185989962454316.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-fa19dc8bce6d082c.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-9e76990af4b6b260.rmeta --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] error: could not compile `mqtt_broker` (test "subscribe_tests"); 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f8192ba0d00bbbc58a10c45823ba010e98ea4474/bin/rustc --crate-name subscribe_tests --edition=2021 tests/subscribe_tests.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=0303b0324978c84f -C extra-filename=-0303b0324978c84f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern mqtt_broker=/opt/rustwide/target/debug/deps/libmqtt_broker-7185989962454316.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-fa19dc8bce6d082c.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-9e76990af4b6b260.rmeta --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] error: could not compile `mqtt_broker` (test "keep_alive_tests"); 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f8192ba0d00bbbc58a10c45823ba010e98ea4474/bin/rustc --crate-name keep_alive_tests --edition=2021 tests/keep_alive_tests.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=4bcf3a009a7f433d -C extra-filename=-4bcf3a009a7f433d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern mqtt_broker=/opt/rustwide/target/debug/deps/libmqtt_broker-7185989962454316.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-fa19dc8bce6d082c.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-9e76990af4b6b260.rmeta --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] error: could not compile `mqtt_broker` (test "connection_tests"); 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f8192ba0d00bbbc58a10c45823ba010e98ea4474/bin/rustc --crate-name connection_tests --edition=2021 tests/connection_tests.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values())' -C metadata=54d17e468b36a44b -C extra-filename=-54d17e468b36a44b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern mqtt_broker=/opt/rustwide/target/debug/deps/libmqtt_broker-7185989962454316.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-fa19dc8bce6d082c.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-9e76990af4b6b260.rmeta --cap-lints=forbid` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "9c8d0396287abcafffe5ad9e95394edd338fcdd433f6f90fd884749bb250eb1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c8d0396287abcafffe5ad9e95394edd338fcdd433f6f90fd884749bb250eb1a", kill_on_drop: false }`
[INFO] [stdout] 9c8d0396287abcafffe5ad9e95394edd338fcdd433f6f90fd884749bb250eb1a