[INFO] cloning repository https://github.com/ngynkvn/mqtt-lights
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ngynkvn/mqtt-lights" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngynkvn%2Fmqtt-lights", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngynkvn%2Fmqtt-lights'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46527ea717881242699d43e8a488b5801035857b
[INFO] testing ngynkvn/mqtt-lights against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fngynkvn%2Fmqtt-lights" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ngynkvn/mqtt-lights on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ngynkvn/mqtt-lights
[INFO] finished tweaking git repo https://github.com/ngynkvn/mqtt-lights
[INFO] tweaked toml for git repo https://github.com/ngynkvn/mqtt-lights written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ngynkvn/mqtt-lights already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.2
[INFO] [stderr]   Downloaded hash32 v0.2.1
[INFO] [stderr]   Downloaded mqttrs v0.4.1
[INFO] [stderr]   Downloaded heapless v0.7.1
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa4197f734e4140e4137b2d0aacbb13f0fec3b75a1a21765c6eb97d4f51c2d31
[INFO] running `Command { std: "docker" "start" "-a" "fa4197f734e4140e4137b2d0aacbb13f0fec3b75a1a21765c6eb97d4f51c2d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa4197f734e4140e4137b2d0aacbb13f0fec3b75a1a21765c6eb97d4f51c2d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4197f734e4140e4137b2d0aacbb13f0fec3b75a1a21765c6eb97d4f51c2d31", kill_on_drop: false }`
[INFO] [stdout] fa4197f734e4140e4137b2d0aacbb13f0fec3b75a1a21765c6eb97d4f51c2d31
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a8c6cf70564cdb8e9b9abe510f4ce5a05745e75de919d6efa8adeb05fa5045f
[INFO] running `Command { std: "docker" "start" "-a" "3a8c6cf70564cdb8e9b9abe510f4ce5a05745e75de919d6efa8adeb05fa5045f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling heapless v0.7.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling signal-hook-mio v0.2.1
[INFO] [stderr]    Compiling crossterm v0.20.0
[INFO] [stderr]    Compiling tui v0.16.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling mqttrs v0.4.1
[INFO] [stderr]    Compiling lightshow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `cx` in this scope
[INFO] [stdout]    --> src/main.rs:118:41
[INFO] [stdout]     |
[INFO] [stdout] 118 |         if let Ok(buffer) = rx.try_recv(cx) {
[INFO] [stdout]     |                                         ^^ help: a local variable with a similar name exists: `rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event`, `KeyCode`, `KeyEvent`, `read`
[INFO] [stdout]  --> src/frontend.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crossterm::event::{poll, read, Event, KeyCode, KeyEvent};
[INFO] [stdout]   |                              ^^^^  ^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Connack`, `Packet`, `Publish`, `decode_slice`, `encode_slice`
[INFO] [stdout]  --> src/frontend.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 | use mqttrs::{decode_slice, encode_slice, Connack, Packet, Publish};
[INFO] [stdout]   |              ^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^  ^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncReadExt`, `AsyncWriteExt`
[INFO] [stdout]   --> src/frontend.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]    |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpListener`, `TcpStream`, `ToSocketAddrs`
[INFO] [stdout]   --> src/frontend.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout] 11 | use tokio::net::{TcpListener, TcpStream, ToSocketAddrs};
[INFO] [stdout]    |                  ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Receiver`, `Sender`, `channel`
[INFO] [stdout]   --> src/frontend.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::sync::mpsc::{channel, Receiver, Sender};
[INFO] [stdout]    |                         ^^^^^^^  ^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/frontend.rs:13:26
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tokio::sync::{Mutex, RwLock};
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stdout`
[INFO] [stdout]  --> src/main.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Stdout};
[INFO] [stdout]   |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::task::Context`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::task::Context;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Event`, `KeyCode`, `KeyEvent`, `poll`, `read`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crossterm::event::{poll, read, Event, KeyCode, KeyEvent};
[INFO] [stdout]    |                        ^^^^  ^^^^  ^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Publish`
[INFO] [stdout]   --> src/main.rs:12:59
[INFO] [stdout]    |
[INFO] [stdout] 12 | use mqttrs::{decode_slice, encode_slice, Connack, Packet, Publish};
[INFO] [stdout]    |                                                           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ToSocketAddrs`
[INFO] [stdout]   --> src/main.rs:15:42
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tokio::net::{TcpListener, TcpStream, ToSocketAddrs};
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]   --> src/main.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tokio::sync::{Mutex, RwLock};
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Constraint`, `Direction`, `Layout`
[INFO] [stdout]   --> src/main.rs:19:19
[INFO] [stdout]    |
[INFO] [stdout] 19 | use tui::layout::{Constraint, Direction, Layout};
[INFO] [stdout]    |                   ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Color`, `Modifier`, `Style`
[INFO] [stdout]   --> src/main.rs:20:18
[INFO] [stdout]    |
[INFO] [stdout] 20 | use tui::style::{Color, Modifier, Style};
[INFO] [stdout]    |                  ^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Block`, `BorderType`, `Borders`, `ListItem`, `ListState`, `List`, `Paragraph`
[INFO] [stdout]   --> src/main.rs:21:20
[INFO] [stdout]    |
[INFO] [stdout] 21 | use tui::widgets::{Block, BorderType, Borders, List, ListItem, ListState, Paragraph};
[INFO] [stdout]    |                    ^^^^^  ^^^^^^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `try_recv` found for struct `tokio::sync::mpsc::Receiver` in the current scope
[INFO] [stdout]    --> src/main.rs:118:32
[INFO] [stdout]     |
[INFO] [stdout] 118 |         if let Ok(buffer) = rx.try_recv(cx) {
[INFO] [stdout]     |                                ^^^^^^^^ method not found in `tokio::sync::mpsc::Receiver<[u8; 1024]>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lightshow`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "3a8c6cf70564cdb8e9b9abe510f4ce5a05745e75de919d6efa8adeb05fa5045f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8c6cf70564cdb8e9b9abe510f4ce5a05745e75de919d6efa8adeb05fa5045f", kill_on_drop: false }`
[INFO] [stdout] 3a8c6cf70564cdb8e9b9abe510f4ce5a05745e75de919d6efa8adeb05fa5045f
