Oct 21 14:44:20.032 INFO checking pjungwir/rust-thread-read-to-string against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 21 14:44:20.033 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +155510e377ae2a8d8ee0dad1a5f809c9062a5526-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 21 14:44:20.439 INFO blam! 696340c0022cd0fa190edc7236da97219552748602acff58145dde5f9aab78d9
Oct 21 14:44:20.440 INFO running `"docker" "start" "-a" "696340c0022cd0fa190edc7236da97219552748602acff58145dde5f9aab78d9"`
Oct 21 14:44:22.004 INFO kablam! usermod: no changes
Oct 21 14:44:22.140 INFO kablam!     Checking mime v0.2.2
Oct 21 14:44:22.143 INFO kablam!    Compiling hyper v0.10.5
Oct 21 14:44:27.656 INFO kablam!     Checking thread-read-to-string v0.1.0 (/source)
Oct 21 14:44:28.556 INFO kablam! warning: unused import: `Request`
Oct 21 14:44:28.556 INFO kablam!  --> src/main.rs:9:21
Oct 21 14:44:28.556 INFO kablam!   |
Oct 21 14:44:28.556 INFO kablam! 9 | use hyper::client::{Request, Response};
Oct 21 14:44:28.556 INFO kablam!   |                     ^^^^^^^
Oct 21 14:44:28.556 INFO kablam!   |
Oct 21 14:44:28.556 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 21 14:44:28.556 INFO kablam! 
Oct 21 14:44:28.744 INFO kablam! warning: unused import: `Request`
Oct 21 14:44:28.744 INFO kablam!  --> src/main.rs:9:21
Oct 21 14:44:28.744 INFO kablam!   |
Oct 21 14:44:28.744 INFO kablam! 9 | use hyper::client::{Request, Response};
Oct 21 14:44:28.744 INFO kablam!   |                     ^^^^^^^
Oct 21 14:44:28.744 INFO kablam!   |
Oct 21 14:44:28.744 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 21 14:44:28.744 INFO kablam! 
Oct 21 14:44:28.788 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.788 INFO kablam!   --> src/main.rs:27:7
Oct 21 14:44:28.788 INFO kablam!    |
Oct 21 14:44:28.788 INFO kablam! 27 |   let t = thread::spawn(move || {
Oct 21 14:44:28.788 INFO kablam!    |       ^ help: consider using `_t` instead
Oct 21 14:44:28.789 INFO kablam!    |
Oct 21 14:44:28.789 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.789 INFO kablam!   --> src/main.rs:73:7
Oct 21 14:44:28.789 INFO kablam!    |
Oct 21 14:44:28.789 INFO kablam! 73 |   let t = thread::spawn(move || {
Oct 21 14:44:28.789 INFO kablam!    |       ^ help: consider using `_t` instead
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.789 INFO kablam!    --> src/main.rs:108:7
Oct 21 14:44:28.789 INFO kablam!     |
Oct 21 14:44:28.789 INFO kablam! 108 |   let t = thread::spawn(move || {
Oct 21 14:44:28.789 INFO kablam!     |       ^ help: consider using `_t` instead
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.789 INFO kablam!    --> src/main.rs:141:7
Oct 21 14:44:28.789 INFO kablam!     |
Oct 21 14:44:28.789 INFO kablam! 141 |   let t = thread::spawn(move || {
Oct 21 14:44:28.789 INFO kablam!     |       ^ help: consider using `_t` instead
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: unused variable: `status_code`
Oct 21 14:44:28.789 INFO kablam!    --> src/main.rs:185:8
Oct 21 14:44:28.789 INFO kablam!     |
Oct 21 14:44:28.789 INFO kablam! 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Oct 21 14:44:28.789 INFO kablam!     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: unused variable: `status_code`
Oct 21 14:44:28.789 INFO kablam!    --> src/main.rs:188:8
Oct 21 14:44:28.789 INFO kablam!     |
Oct 21 14:44:28.789 INFO kablam! 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Oct 21 14:44:28.789 INFO kablam!     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: unused variable: `status_code`
Oct 21 14:44:28.789 INFO kablam!    --> src/main.rs:193:7
Oct 21 14:44:28.789 INFO kablam!     |
Oct 21 14:44:28.789 INFO kablam! 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Oct 21 14:44:28.789 INFO kablam!     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.789 INFO kablam!   --> src/main.rs:19:7
Oct 21 14:44:28.789 INFO kablam!    |
Oct 21 14:44:28.789 INFO kablam! 19 |   let mut c = Client::new();
Oct 21 14:44:28.789 INFO kablam!    |       ----^
Oct 21 14:44:28.789 INFO kablam!    |       |
Oct 21 14:44:28.789 INFO kablam!    |       help: remove this `mut`
Oct 21 14:44:28.789 INFO kablam!    |
Oct 21 14:44:28.789 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.789 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.789 INFO kablam!   --> src/main.rs:20:7
Oct 21 14:44:28.789 INFO kablam!    |
Oct 21 14:44:28.789 INFO kablam! 20 |   let mut req = c.get(url);
Oct 21 14:44:28.789 INFO kablam!    |       ----^^^
Oct 21 14:44:28.789 INFO kablam!    |       |
Oct 21 14:44:28.789 INFO kablam!    |       help: remove this `mut`
Oct 21 14:44:28.789 INFO kablam! 
Oct 21 14:44:28.820 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.820 INFO kablam!   --> src/main.rs:74:9
Oct 21 14:44:28.820 INFO kablam!    |
Oct 21 14:44:28.820 INFO kablam! 74 |     let mut c = Client::new();
Oct 21 14:44:28.820 INFO kablam!    |         ----^
Oct 21 14:44:28.820 INFO kablam!    |         |
Oct 21 14:44:28.820 INFO kablam!    |         help: remove this `mut`
Oct 21 14:44:28.820 INFO kablam! 
Oct 21 14:44:28.820 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.820 INFO kablam!   --> src/main.rs:75:9
Oct 21 14:44:28.820 INFO kablam!    |
Oct 21 14:44:28.820 INFO kablam! 75 |     let mut req = c.get(&url);
Oct 21 14:44:28.820 INFO kablam!    |         ----^^^
Oct 21 14:44:28.820 INFO kablam!    |         |
Oct 21 14:44:28.820 INFO kablam!    |         help: remove this `mut`
Oct 21 14:44:28.820 INFO kablam! 
Oct 21 14:44:28.820 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.820 INFO kablam!   --> src/main.rs:76:9
Oct 21 14:44:28.821 INFO kablam!    |
Oct 21 14:44:28.821 INFO kablam! 76 |     let mut ret = match req.send() {
Oct 21 14:44:28.821 INFO kablam!    |         ----^^^
Oct 21 14:44:28.821 INFO kablam!    |         |
Oct 21 14:44:28.821 INFO kablam!    |         help: remove this `mut`
Oct 21 14:44:28.821 INFO kablam! 
Oct 21 14:44:28.824 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.824 INFO kablam!    --> src/main.rs:109:9
Oct 21 14:44:28.824 INFO kablam!     |
Oct 21 14:44:28.824 INFO kablam! 109 |     let mut c = Client::new();
Oct 21 14:44:28.824 INFO kablam!     |         ----^
Oct 21 14:44:28.824 INFO kablam!     |         |
Oct 21 14:44:28.824 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.824 INFO kablam! 
Oct 21 14:44:28.824 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.824 INFO kablam!    --> src/main.rs:110:9
Oct 21 14:44:28.824 INFO kablam!     |
Oct 21 14:44:28.824 INFO kablam! 110 |     let mut req = c.get(&url);
Oct 21 14:44:28.824 INFO kablam!     |         ----^^^
Oct 21 14:44:28.824 INFO kablam!     |         |
Oct 21 14:44:28.824 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.824 INFO kablam! 
Oct 21 14:44:28.824 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.824 INFO kablam!    --> src/main.rs:111:9
Oct 21 14:44:28.824 INFO kablam!     |
Oct 21 14:44:28.824 INFO kablam! 111 |     let mut ret = match req.send() {
Oct 21 14:44:28.824 INFO kablam!     |         ----^^^
Oct 21 14:44:28.824 INFO kablam!     |         |
Oct 21 14:44:28.824 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.824 INFO kablam! 
Oct 21 14:44:28.828 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.828 INFO kablam!    --> src/main.rs:142:9
Oct 21 14:44:28.828 INFO kablam!     |
Oct 21 14:44:28.828 INFO kablam! 142 |     let mut c = Client::new();
Oct 21 14:44:28.828 INFO kablam!     |         ----^
Oct 21 14:44:28.828 INFO kablam!     |         |
Oct 21 14:44:28.828 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.828 INFO kablam! 
Oct 21 14:44:28.828 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.828 INFO kablam!    --> src/main.rs:143:9
Oct 21 14:44:28.828 INFO kablam!     |
Oct 21 14:44:28.828 INFO kablam! 143 |     let mut req = c.get(&url);
Oct 21 14:44:28.828 INFO kablam!     |         ----^^^
Oct 21 14:44:28.828 INFO kablam!     |         |
Oct 21 14:44:28.828 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.828 INFO kablam! 
Oct 21 14:44:28.828 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.828 INFO kablam!    --> src/main.rs:144:9
Oct 21 14:44:28.828 INFO kablam!     |
Oct 21 14:44:28.828 INFO kablam! 144 |     let mut ret = match req.send() {
Oct 21 14:44:28.828 INFO kablam!     |         ----^^^
Oct 21 14:44:28.828 INFO kablam!     |         |
Oct 21 14:44:28.828 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.828 INFO kablam! 
Oct 21 14:44:28.828 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.828 INFO kablam!    --> src/main.rs:137:38
Oct 21 14:44:28.829 INFO kablam!     |
Oct 21 14:44:28.829 INFO kablam! 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Oct 21 14:44:28.829 INFO kablam!     |                                      ----^^^^^
Oct 21 14:44:28.829 INFO kablam!     |                                      |
Oct 21 14:44:28.829 INFO kablam!     |                                      help: remove this `mut`
Oct 21 14:44:28.829 INFO kablam! 
Oct 21 14:44:28.896 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.896 INFO kablam!   --> src/main.rs:27:7
Oct 21 14:44:28.896 INFO kablam!    |
Oct 21 14:44:28.896 INFO kablam! 27 |   let t = thread::spawn(move || {
Oct 21 14:44:28.896 INFO kablam!    |       ^ help: consider using `_t` instead
Oct 21 14:44:28.896 INFO kablam!    |
Oct 21 14:44:28.904 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 21 14:44:28.904 INFO kablam! 
Oct 21 14:44:28.904 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.904 INFO kablam!   --> src/main.rs:73:7
Oct 21 14:44:28.904 INFO kablam!    |
Oct 21 14:44:28.904 INFO kablam! 73 |   let t = thread::spawn(move || {
Oct 21 14:44:28.904 INFO kablam!    |       ^ help: consider using `_t` instead
Oct 21 14:44:28.904 INFO kablam! 
Oct 21 14:44:28.904 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.904 INFO kablam!    --> src/main.rs:108:7
Oct 21 14:44:28.904 INFO kablam!     |
Oct 21 14:44:28.904 INFO kablam! 108 |   let t = thread::spawn(move || {
Oct 21 14:44:28.904 INFO kablam!     |       ^ help: consider using `_t` instead
Oct 21 14:44:28.904 INFO kablam! 
Oct 21 14:44:28.904 INFO kablam! warning: unused variable: `t`
Oct 21 14:44:28.904 INFO kablam!    --> src/main.rs:141:7
Oct 21 14:44:28.904 INFO kablam!     |
Oct 21 14:44:28.904 INFO kablam! 141 |   let t = thread::spawn(move || {
Oct 21 14:44:28.904 INFO kablam!     |       ^ help: consider using `_t` instead
Oct 21 14:44:28.904 INFO kablam! 
Oct 21 14:44:28.904 INFO kablam! warning: unused variable: `status_code`
Oct 21 14:44:28.904 INFO kablam!    --> src/main.rs:185:8
Oct 21 14:44:28.904 INFO kablam!     |
Oct 21 14:44:28.904 INFO kablam! 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Oct 21 14:44:28.904 INFO kablam!     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Oct 21 14:44:28.904 INFO kablam! 
Oct 21 14:44:28.904 INFO kablam! warning: unused variable: `status_code`
Oct 21 14:44:28.904 INFO kablam!    --> src/main.rs:188:8
Oct 21 14:44:28.904 INFO kablam!     |
Oct 21 14:44:28.904 INFO kablam! 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Oct 21 14:44:28.904 INFO kablam!     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Oct 21 14:44:28.904 INFO kablam! 
Oct 21 14:44:28.904 INFO kablam! warning: unused variable: `status_code`
Oct 21 14:44:28.904 INFO kablam!    --> src/main.rs:193:7
Oct 21 14:44:28.904 INFO kablam!     |
Oct 21 14:44:28.904 INFO kablam! 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Oct 21 14:44:28.904 INFO kablam!     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Oct 21 14:44:28.904 INFO kablam! 
Oct 21 14:44:28.908 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.908 INFO kablam!   --> src/main.rs:19:7
Oct 21 14:44:28.908 INFO kablam!    |
Oct 21 14:44:28.908 INFO kablam! 19 |   let mut c = Client::new();
Oct 21 14:44:28.908 INFO kablam!    |       ----^
Oct 21 14:44:28.908 INFO kablam!    |       |
Oct 21 14:44:28.908 INFO kablam!    |       help: remove this `mut`
Oct 21 14:44:28.908 INFO kablam!    |
Oct 21 14:44:28.908 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 21 14:44:28.908 INFO kablam! 
Oct 21 14:44:28.908 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.908 INFO kablam!   --> src/main.rs:20:7
Oct 21 14:44:28.908 INFO kablam!    |
Oct 21 14:44:28.908 INFO kablam! 20 |   let mut req = c.get(url);
Oct 21 14:44:28.908 INFO kablam!    |       ----^^^
Oct 21 14:44:28.908 INFO kablam!    |       |
Oct 21 14:44:28.908 INFO kablam!    |       help: remove this `mut`
Oct 21 14:44:28.908 INFO kablam! 
Oct 21 14:44:28.920 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.920 INFO kablam!   --> src/main.rs:74:9
Oct 21 14:44:28.920 INFO kablam!    |
Oct 21 14:44:28.920 INFO kablam! 74 |     let mut c = Client::new();
Oct 21 14:44:28.921 INFO kablam!    |         ----^
Oct 21 14:44:28.921 INFO kablam!    |         |
Oct 21 14:44:28.921 INFO kablam!    |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!   --> src/main.rs:75:9
Oct 21 14:44:28.921 INFO kablam!    |
Oct 21 14:44:28.921 INFO kablam! 75 |     let mut req = c.get(&url);
Oct 21 14:44:28.921 INFO kablam!    |         ----^^^
Oct 21 14:44:28.921 INFO kablam!    |         |
Oct 21 14:44:28.921 INFO kablam!    |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!   --> src/main.rs:76:9
Oct 21 14:44:28.921 INFO kablam!    |
Oct 21 14:44:28.921 INFO kablam! 76 |     let mut ret = match req.send() {
Oct 21 14:44:28.921 INFO kablam!    |         ----^^^
Oct 21 14:44:28.921 INFO kablam!    |         |
Oct 21 14:44:28.921 INFO kablam!    |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!    --> src/main.rs:109:9
Oct 21 14:44:28.921 INFO kablam!     |
Oct 21 14:44:28.921 INFO kablam! 109 |     let mut c = Client::new();
Oct 21 14:44:28.921 INFO kablam!     |         ----^
Oct 21 14:44:28.921 INFO kablam!     |         |
Oct 21 14:44:28.921 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!    --> src/main.rs:110:9
Oct 21 14:44:28.921 INFO kablam!     |
Oct 21 14:44:28.921 INFO kablam! 110 |     let mut req = c.get(&url);
Oct 21 14:44:28.921 INFO kablam!     |         ----^^^
Oct 21 14:44:28.921 INFO kablam!     |         |
Oct 21 14:44:28.921 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!    --> src/main.rs:111:9
Oct 21 14:44:28.921 INFO kablam!     |
Oct 21 14:44:28.921 INFO kablam! 111 |     let mut ret = match req.send() {
Oct 21 14:44:28.921 INFO kablam!     |         ----^^^
Oct 21 14:44:28.921 INFO kablam!     |         |
Oct 21 14:44:28.921 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!    --> src/main.rs:142:9
Oct 21 14:44:28.921 INFO kablam!     |
Oct 21 14:44:28.921 INFO kablam! 142 |     let mut c = Client::new();
Oct 21 14:44:28.921 INFO kablam!     |         ----^
Oct 21 14:44:28.921 INFO kablam!     |         |
Oct 21 14:44:28.921 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!    --> src/main.rs:143:9
Oct 21 14:44:28.921 INFO kablam!     |
Oct 21 14:44:28.921 INFO kablam! 143 |     let mut req = c.get(&url);
Oct 21 14:44:28.921 INFO kablam!     |         ----^^^
Oct 21 14:44:28.921 INFO kablam!     |         |
Oct 21 14:44:28.921 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!    --> src/main.rs:144:9
Oct 21 14:44:28.921 INFO kablam!     |
Oct 21 14:44:28.921 INFO kablam! 144 |     let mut ret = match req.send() {
Oct 21 14:44:28.921 INFO kablam!     |         ----^^^
Oct 21 14:44:28.921 INFO kablam!     |         |
Oct 21 14:44:28.921 INFO kablam!     |         help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.921 INFO kablam! warning: variable does not need to be mutable
Oct 21 14:44:28.921 INFO kablam!    --> src/main.rs:137:38
Oct 21 14:44:28.921 INFO kablam!     |
Oct 21 14:44:28.921 INFO kablam! 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Oct 21 14:44:28.921 INFO kablam!     |                                      ----^^^^^
Oct 21 14:44:28.921 INFO kablam!     |                                      |
Oct 21 14:44:28.921 INFO kablam!     |                                      help: remove this `mut`
Oct 21 14:44:28.921 INFO kablam! 
Oct 21 14:44:28.957 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.92s
Oct 21 14:44:28.962 INFO kablam! su: No module specific data is present
Oct 21 14:44:30.328 INFO running `"docker" "rm" "-f" "696340c0022cd0fa190edc7236da97219552748602acff58145dde5f9aab78d9"`
Oct 21 14:44:30.590 INFO blam! 696340c0022cd0fa190edc7236da97219552748602acff58145dde5f9aab78d9