[INFO] cloning repository https://github.com/MarcDwyer/tmi_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarcDwyer/tmi_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcDwyer%2Ftmi_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcDwyer%2Ftmi_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7649dfcaa924e50bb18ed9cab1b7cae6391d64d
[INFO] testing MarcDwyer/tmi_rust against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcDwyer%2Ftmi_rust" "/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/MarcDwyer/tmi_rust on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MarcDwyer/tmi_rust
[INFO] finished tweaking git repo https://github.com/MarcDwyer/tmi_rust
[INFO] tweaked toml for git repo https://github.com/MarcDwyer/tmi_rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/MarcDwyer/tmi_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-tls v0.2.1
[INFO] [stderr]   Downloaded websocket-base v0.26.2
[INFO] [stderr]   Downloaded websocket v0.26.2
[INFO] [stderr]   Downloaded irc_message v1.0.0
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45c4effea8e00c6562504e7bb181853bff17e8e52e803e89f7484c19df9f66d5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "45c4effea8e00c6562504e7bb181853bff17e8e52e803e89f7484c19df9f66d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45c4effea8e00c6562504e7bb181853bff17e8e52e803e89f7484c19df9f66d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c4effea8e00c6562504e7bb181853bff17e8e52e803e89f7484c19df9f66d5", kill_on_drop: false }`
[INFO] [stdout] 45c4effea8e00c6562504e7bb181853bff17e8e52e803e89f7484c19df9f66d5
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcea96092e20932d4ea313c2fe734c5a53900df328b00cd785b3ef3d1bff8bf5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bcea96092e20932d4ea313c2fe734c5a53900df328b00cd785b3ef3d1bff8bf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling irc_message v1.0.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-tls v0.2.1
[INFO] [stderr]    Compiling websocket-base v0.26.2
[INFO] [stderr]    Compiling websocket v0.26.2
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling tmi_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tx_main`
[INFO] [stdout]   --> src/twitch_chat.rs:44:14
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stdout]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receive_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `position`
[INFO] [stdout]   --> src/parser.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut position: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `next_space` is never read
[INFO] [stdout]   --> src/parser.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut next_space: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t_msg`
[INFO] [stdout]   --> src/parser.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let mut t_msg = TwitchMessage::new();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_t_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> src/parser.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let ch = data.char_indices();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kv`
[INFO] [stdout]   --> src/parser.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let kv = tag.split("=");
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_kv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx_main`
[INFO] [stdout]   --> src/twitch_chat.rs:44:14
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stdout]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receive_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut position: usize = 0;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let mut t_msg = TwitchMessage::new();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Commands`
[INFO] [stdout]  --> src/parser.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Commands {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TwitchMessage`
[INFO] [stdout]   --> src/parser.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct TwitchMessage {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parcer`
[INFO] [stdout]   --> src/parser.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn parcer(data: String) -> Option<TwitchMessage> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.50s
[INFO] running `Command { std: "docker" "inspect" "bcea96092e20932d4ea313c2fe734c5a53900df328b00cd785b3ef3d1bff8bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcea96092e20932d4ea313c2fe734c5a53900df328b00cd785b3ef3d1bff8bf5", kill_on_drop: false }`
[INFO] [stdout] bcea96092e20932d4ea313c2fe734c5a53900df328b00cd785b3ef3d1bff8bf5
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ba15f697f86dae4e72b1267d127d160e62cf99d11ec9ca897d1349533b1bba2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5ba15f697f86dae4e72b1267d127d160e62cf99d11ec9ca897d1349533b1bba2", kill_on_drop: false }`
[INFO] [stderr]    Compiling tmi_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tx_main`
[INFO] [stdout]   --> src/twitch_chat.rs:44:14
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stdout]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receive_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `position`
[INFO] [stdout]   --> src/parser.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut position: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `next_space` is never read
[INFO] [stdout]   --> src/parser.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut next_space: usize = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t_msg`
[INFO] [stdout]   --> src/parser.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let mut t_msg = TwitchMessage::new();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_t_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> src/parser.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let ch = data.char_indices();
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kv`
[INFO] [stdout]   --> src/parser.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let kv = tag.split("=");
[INFO] [stdout]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_kv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx_main`
[INFO] [stdout]   --> src/twitch_chat.rs:44:14
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stdout]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receive_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut position: usize = 0;
[INFO] [stdout]    |         ----^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let mut t_msg = TwitchMessage::new();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Commands`
[INFO] [stdout]  --> src/parser.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Commands {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TwitchMessage`
[INFO] [stdout]   --> src/parser.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct TwitchMessage {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parcer`
[INFO] [stdout]   --> src/parser.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn parcer(data: String) -> Option<TwitchMessage> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx_main`
[INFO] [stdout]   --> src/twitch_chat.rs:44:14
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stdout]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `send_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `receive_loop`
[INFO] [stdout]   --> src/twitch_chat.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "5ba15f697f86dae4e72b1267d127d160e62cf99d11ec9ca897d1349533b1bba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba15f697f86dae4e72b1267d127d160e62cf99d11ec9ca897d1349533b1bba2", kill_on_drop: false }`
[INFO] [stdout] 5ba15f697f86dae4e72b1267d127d160e62cf99d11ec9ca897d1349533b1bba2
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 872150387f4f69dfb014e56e82a8b37d7f116212d36ec5706bb9840ad148a9d5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "872150387f4f69dfb014e56e82a8b37d7f116212d36ec5706bb9840ad148a9d5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `tx_main`
[INFO] [stderr]   --> src/twitch_chat.rs:44:14
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stderr]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `send_loop`
[INFO] [stderr]   --> src/twitch_chat.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receive_loop`
[INFO] [stderr]   --> src/twitch_chat.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]   --> src/parser.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut position: usize = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_space` is never read
[INFO] [stderr]   --> src/parser.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let mut next_space: usize = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t_msg`
[INFO] [stderr]   --> src/parser.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut t_msg = TwitchMessage::new();
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_t_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ch`
[INFO] [stderr]   --> src/parser.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let ch = data.char_indices();
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kv`
[INFO] [stderr]   --> src/parser.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let kv = tag.split("=");
[INFO] [stderr]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_kv`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tx_main`
[INFO] [stderr]   --> src/twitch_chat.rs:44:14
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stderr]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `send_loop`
[INFO] [stderr]   --> src/twitch_chat.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receive_loop`
[INFO] [stderr]   --> src/twitch_chat.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut position: usize = 0;
[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: unused variable: `tx_main`
[INFO] [stderr]   --> src/twitch_chat.rs:44:14
[INFO] [stderr]    |
[INFO] [stderr] 44 |         let (tx_main, rx_main): (Sender<String>, Receiver<String>) = channel();
[INFO] [stderr]    |              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tx_main`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/parser.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut t_msg = TwitchMessage::new();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Commands`
[INFO] [stderr]  --> src/parser.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Commands {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TwitchMessage`
[INFO] [stderr]   --> src/parser.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub struct TwitchMessage {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/parser.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `send_loop`
[INFO] [stderr]   --> src/twitch_chat.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let send_loop = thread::spawn(move || {
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_send_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parcer`
[INFO] [stderr]   --> src/parser.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn parcer(data: String) -> Option<TwitchMessage> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receive_loop`
[INFO] [stderr]   --> src/twitch_chat.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let receive_loop = thread::spawn(move || {
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_receive_loop`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tmi_rust-685edc8d942dade3
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tmi_rust-e8a7d5ceff1b0c24
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tmi_rust
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "872150387f4f69dfb014e56e82a8b37d7f116212d36ec5706bb9840ad148a9d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "872150387f4f69dfb014e56e82a8b37d7f116212d36ec5706bb9840ad148a9d5", kill_on_drop: false }`
[INFO] [stdout] 872150387f4f69dfb014e56e82a8b37d7f116212d36ec5706bb9840ad148a9d5
