Nov 27 22:42:05.007 INFO checking pjungwir/rust-thread-read-to-string against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 22:42:05.009 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 27 22:42:05.646 INFO [stdout] 619944ffa6083b7dbff09f5bbb75c15facbe562a2e2c8a955e719f6b071ec940
Nov 27 22:42:05.650 INFO running `"docker" "start" "-a" "619944ffa6083b7dbff09f5bbb75c15facbe562a2e2c8a955e719f6b071ec940"`
Nov 27 22:42:07.364 INFO [stderr] usermod: no changes
Nov 27 22:42:07.548 INFO [stderr]     Checking mime v0.2.2
Nov 27 22:42:08.230 INFO [stderr]     Checking hyper v0.10.5
Nov 27 22:42:11.980 INFO [stderr]     Checking thread-read-to-string v0.1.0 (/source)
Nov 27 22:42:12.701 INFO [stderr] warning: unused import: `Request`
Nov 27 22:42:12.701 INFO [stderr]  --> src/main.rs:9:21
Nov 27 22:42:12.702 INFO [stderr]   |
Nov 27 22:42:12.702 INFO [stderr] 9 | use hyper::client::{Request, Response};
Nov 27 22:42:12.702 INFO [stderr]   |                     ^^^^^^^
Nov 27 22:42:12.702 INFO [stderr]   |
Nov 27 22:42:12.703 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 22:42:12.703 INFO [stderr] 
Nov 27 22:42:12.757 INFO [stderr] warning: unused import: `Request`
Nov 27 22:42:12.757 INFO [stderr]  --> src/main.rs:9:21
Nov 27 22:42:12.758 INFO [stderr]   |
Nov 27 22:42:12.758 INFO [stderr] 9 | use hyper::client::{Request, Response};
Nov 27 22:42:12.758 INFO [stderr]   |                     ^^^^^^^
Nov 27 22:42:12.758 INFO [stderr]   |
Nov 27 22:42:12.759 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 22:42:12.759 INFO [stderr] 
Nov 27 22:42:12.833 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.833 INFO [stderr]   --> src/main.rs:27:7
Nov 27 22:42:12.833 INFO [stderr]    |
Nov 27 22:42:12.834 INFO [stderr] 27 |   let t = thread::spawn(move || {
Nov 27 22:42:12.834 INFO [stderr]    |       ^ help: consider using `_t` instead
Nov 27 22:42:12.834 INFO [stderr]    |
Nov 27 22:42:12.835 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 22:42:12.835 INFO [stderr] 
Nov 27 22:42:12.835 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.835 INFO [stderr]   --> src/main.rs:73:7
Nov 27 22:42:12.836 INFO [stderr]    |
Nov 27 22:42:12.836 INFO [stderr] 73 |   let t = thread::spawn(move || {
Nov 27 22:42:12.836 INFO [stderr]    |       ^ help: consider using `_t` instead
Nov 27 22:42:12.837 INFO [stderr] 
Nov 27 22:42:12.837 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.837 INFO [stderr]    --> src/main.rs:108:7
Nov 27 22:42:12.838 INFO [stderr]     |
Nov 27 22:42:12.838 INFO [stderr] 108 |   let t = thread::spawn(move || {
Nov 27 22:42:12.838 INFO [stderr]     |       ^ help: consider using `_t` instead
Nov 27 22:42:12.838 INFO [stderr] 
Nov 27 22:42:12.839 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.839 INFO [stderr]    --> src/main.rs:141:7
Nov 27 22:42:12.839 INFO [stderr]     |
Nov 27 22:42:12.840 INFO [stderr] 141 |   let t = thread::spawn(move || {
Nov 27 22:42:12.840 INFO [stderr]     |       ^ help: consider using `_t` instead
Nov 27 22:42:12.840 INFO [stderr] 
Nov 27 22:42:12.840 INFO [stderr] warning: unused variable: `status_code`
Nov 27 22:42:12.841 INFO [stderr]    --> src/main.rs:185:8
Nov 27 22:42:12.841 INFO [stderr]     |
Nov 27 22:42:12.841 INFO [stderr] 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Nov 27 22:42:12.842 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Nov 27 22:42:12.842 INFO [stderr] 
Nov 27 22:42:12.842 INFO [stderr] warning: unused variable: `status_code`
Nov 27 22:42:12.843 INFO [stderr]    --> src/main.rs:188:8
Nov 27 22:42:12.843 INFO [stderr]     |
Nov 27 22:42:12.843 INFO [stderr] 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Nov 27 22:42:12.843 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Nov 27 22:42:12.843 INFO [stderr] 
Nov 27 22:42:12.843 INFO [stderr] warning: unused variable: `status_code`
Nov 27 22:42:12.843 INFO [stderr]    --> src/main.rs:193:7
Nov 27 22:42:12.843 INFO [stderr]     |
Nov 27 22:42:12.843 INFO [stderr] 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Nov 27 22:42:12.843 INFO [stderr]     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Nov 27 22:42:12.843 INFO [stderr] 
Nov 27 22:42:12.848 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.848 INFO [stderr]   --> src/main.rs:19:7
Nov 27 22:42:12.848 INFO [stderr]    |
Nov 27 22:42:12.848 INFO [stderr] 19 |   let mut c = Client::new();
Nov 27 22:42:12.848 INFO [stderr]    |       ----^
Nov 27 22:42:12.848 INFO [stderr]    |       |
Nov 27 22:42:12.848 INFO [stderr]    |       help: remove this `mut`
Nov 27 22:42:12.848 INFO [stderr]    |
Nov 27 22:42:12.848 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 22:42:12.848 INFO [stderr] 
Nov 27 22:42:12.848 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.848 INFO [stderr]   --> src/main.rs:20:7
Nov 27 22:42:12.848 INFO [stderr]    |
Nov 27 22:42:12.848 INFO [stderr] 20 |   let mut req = c.get(url);
Nov 27 22:42:12.848 INFO [stderr]    |       ----^^^
Nov 27 22:42:12.848 INFO [stderr]    |       |
Nov 27 22:42:12.848 INFO [stderr]    |       help: remove this `mut`
Nov 27 22:42:12.848 INFO [stderr] 
Nov 27 22:42:12.868 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.868 INFO [stderr]   --> src/main.rs:74:9
Nov 27 22:42:12.868 INFO [stderr]    |
Nov 27 22:42:12.868 INFO [stderr] 74 |     let mut c = Client::new();
Nov 27 22:42:12.868 INFO [stderr]    |         ----^
Nov 27 22:42:12.868 INFO [stderr]    |         |
Nov 27 22:42:12.868 INFO [stderr]    |         help: remove this `mut`
Nov 27 22:42:12.868 INFO [stderr] 
Nov 27 22:42:12.868 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.868 INFO [stderr]   --> src/main.rs:75:9
Nov 27 22:42:12.868 INFO [stderr]    |
Nov 27 22:42:12.868 INFO [stderr] 75 |     let mut req = c.get(&url);
Nov 27 22:42:12.868 INFO [stderr]    |         ----^^^
Nov 27 22:42:12.868 INFO [stderr]    |         |
Nov 27 22:42:12.868 INFO [stderr]    |         help: remove this `mut`
Nov 27 22:42:12.869 INFO [stderr] 
Nov 27 22:42:12.869 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.869 INFO [stderr]   --> src/main.rs:76:9
Nov 27 22:42:12.869 INFO [stderr]    |
Nov 27 22:42:12.869 INFO [stderr] 76 |     let mut ret = match req.send() {
Nov 27 22:42:12.869 INFO [stderr]    |         ----^^^
Nov 27 22:42:12.869 INFO [stderr]    |         |
Nov 27 22:42:12.869 INFO [stderr]    |         help: remove this `mut`
Nov 27 22:42:12.869 INFO [stderr] 
Nov 27 22:42:12.873 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.873 INFO [stderr]   --> src/main.rs:27:7
Nov 27 22:42:12.873 INFO [stderr]    |
Nov 27 22:42:12.873 INFO [stderr] 27 |   let t = thread::spawn(move || {
Nov 27 22:42:12.873 INFO [stderr]    |       ^ help: consider using `_t` instead
Nov 27 22:42:12.873 INFO [stderr]    |
Nov 27 22:42:12.873 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 22:42:12.873 INFO [stderr] 
Nov 27 22:42:12.873 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.873 INFO [stderr]   --> src/main.rs:73:7
Nov 27 22:42:12.873 INFO [stderr]    |
Nov 27 22:42:12.873 INFO [stderr] 73 |   let t = thread::spawn(move || {
Nov 27 22:42:12.873 INFO [stderr]    |       ^ help: consider using `_t` instead
Nov 27 22:42:12.873 INFO [stderr] 
Nov 27 22:42:12.873 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.873 INFO [stderr]    --> src/main.rs:108:7
Nov 27 22:42:12.873 INFO [stderr]     |
Nov 27 22:42:12.873 INFO [stderr] 108 |   let t = thread::spawn(move || {
Nov 27 22:42:12.873 INFO [stderr]     |       ^ help: consider using `_t` instead
Nov 27 22:42:12.873 INFO [stderr] 
Nov 27 22:42:12.873 INFO [stderr] warning: unused variable: `t`
Nov 27 22:42:12.873 INFO [stderr]    --> src/main.rs:141:7
Nov 27 22:42:12.873 INFO [stderr]     |
Nov 27 22:42:12.873 INFO [stderr] 141 |   let t = thread::spawn(move || {
Nov 27 22:42:12.873 INFO [stderr]     |       ^ help: consider using `_t` instead
Nov 27 22:42:12.873 INFO [stderr] 
Nov 27 22:42:12.879 INFO [stderr] warning: unused variable: `status_code`
Nov 27 22:42:12.879 INFO [stderr]    --> src/main.rs:185:8
Nov 27 22:42:12.879 INFO [stderr]     |
Nov 27 22:42:12.879 INFO [stderr] 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Nov 27 22:42:12.879 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Nov 27 22:42:12.879 INFO [stderr] 
Nov 27 22:42:12.879 INFO [stderr] warning: unused variable: `status_code`
Nov 27 22:42:12.879 INFO [stderr]    --> src/main.rs:188:8
Nov 27 22:42:12.879 INFO [stderr]     |
Nov 27 22:42:12.879 INFO [stderr] 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Nov 27 22:42:12.879 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Nov 27 22:42:12.879 INFO [stderr] 
Nov 27 22:42:12.879 INFO [stderr] warning: unused variable: `status_code`
Nov 27 22:42:12.879 INFO [stderr]    --> src/main.rs:193:7
Nov 27 22:42:12.879 INFO [stderr]     |
Nov 27 22:42:12.879 INFO [stderr] 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Nov 27 22:42:12.879 INFO [stderr]     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Nov 27 22:42:12.879 INFO [stderr] 
Nov 27 22:42:12.881 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.881 INFO [stderr]   --> src/main.rs:19:7
Nov 27 22:42:12.881 INFO [stderr]    |
Nov 27 22:42:12.881 INFO [stderr] 19 |   let mut c = Client::new();
Nov 27 22:42:12.881 INFO [stderr]    |       ----^
Nov 27 22:42:12.881 INFO [stderr]    |       |
Nov 27 22:42:12.881 INFO [stderr]    |       help: remove this `mut`
Nov 27 22:42:12.881 INFO [stderr]    |
Nov 27 22:42:12.881 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 22:42:12.881 INFO [stderr] 
Nov 27 22:42:12.881 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.881 INFO [stderr]   --> src/main.rs:20:7
Nov 27 22:42:12.881 INFO [stderr]    |
Nov 27 22:42:12.881 INFO [stderr] 20 |   let mut req = c.get(url);
Nov 27 22:42:12.881 INFO [stderr]    |       ----^^^
Nov 27 22:42:12.881 INFO [stderr]    |       |
Nov 27 22:42:12.881 INFO [stderr]    |       help: remove this `mut`
Nov 27 22:42:12.881 INFO [stderr] 
Nov 27 22:42:12.889 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.889 INFO [stderr]   --> src/main.rs:74:9
Nov 27 22:42:12.889 INFO [stderr]    |
Nov 27 22:42:12.889 INFO [stderr] 74 |     let mut c = Client::new();
Nov 27 22:42:12.889 INFO [stderr]    |         ----^
Nov 27 22:42:12.889 INFO [stderr]    |         |
Nov 27 22:42:12.889 INFO [stderr]    |         help: remove this `mut`
Nov 27 22:42:12.889 INFO [stderr] 
Nov 27 22:42:12.889 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.889 INFO [stderr]   --> src/main.rs:75:9
Nov 27 22:42:12.889 INFO [stderr]    |
Nov 27 22:42:12.889 INFO [stderr] 75 |     let mut req = c.get(&url);
Nov 27 22:42:12.889 INFO [stderr]    |         ----^^^
Nov 27 22:42:12.889 INFO [stderr]    |         |
Nov 27 22:42:12.889 INFO [stderr]    |         help: remove this `mut`
Nov 27 22:42:12.889 INFO [stderr] 
Nov 27 22:42:12.889 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.889 INFO [stderr]   --> src/main.rs:76:9
Nov 27 22:42:12.889 INFO [stderr]    |
Nov 27 22:42:12.889 INFO [stderr] 76 |     let mut ret = match req.send() {
Nov 27 22:42:12.889 INFO [stderr]    |         ----^^^
Nov 27 22:42:12.889 INFO [stderr]    |         |
Nov 27 22:42:12.889 INFO [stderr]    |         help: remove this `mut`
Nov 27 22:42:12.889 INFO [stderr] 
Nov 27 22:42:12.890 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.890 INFO [stderr]    --> src/main.rs:109:9
Nov 27 22:42:12.890 INFO [stderr]     |
Nov 27 22:42:12.890 INFO [stderr] 109 |     let mut c = Client::new();
Nov 27 22:42:12.890 INFO [stderr]     |         ----^
Nov 27 22:42:12.890 INFO [stderr]     |         |
Nov 27 22:42:12.890 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.890 INFO [stderr] 
Nov 27 22:42:12.890 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.890 INFO [stderr]    --> src/main.rs:110:9
Nov 27 22:42:12.890 INFO [stderr]     |
Nov 27 22:42:12.890 INFO [stderr] 110 |     let mut req = c.get(&url);
Nov 27 22:42:12.890 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.890 INFO [stderr]     |         |
Nov 27 22:42:12.890 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.890 INFO [stderr] 
Nov 27 22:42:12.890 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.890 INFO [stderr]    --> src/main.rs:111:9
Nov 27 22:42:12.890 INFO [stderr]     |
Nov 27 22:42:12.890 INFO [stderr] 111 |     let mut ret = match req.send() {
Nov 27 22:42:12.890 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.890 INFO [stderr]     |         |
Nov 27 22:42:12.890 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.890 INFO [stderr] 
Nov 27 22:42:12.896 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.896 INFO [stderr]    --> src/main.rs:142:9
Nov 27 22:42:12.896 INFO [stderr]     |
Nov 27 22:42:12.896 INFO [stderr] 142 |     let mut c = Client::new();
Nov 27 22:42:12.896 INFO [stderr]     |         ----^
Nov 27 22:42:12.896 INFO [stderr]     |         |
Nov 27 22:42:12.896 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.896 INFO [stderr] 
Nov 27 22:42:12.896 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.896 INFO [stderr]    --> src/main.rs:143:9
Nov 27 22:42:12.896 INFO [stderr]     |
Nov 27 22:42:12.896 INFO [stderr] 143 |     let mut req = c.get(&url);
Nov 27 22:42:12.896 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.896 INFO [stderr]     |         |
Nov 27 22:42:12.896 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.896 INFO [stderr] 
Nov 27 22:42:12.896 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.896 INFO [stderr]    --> src/main.rs:144:9
Nov 27 22:42:12.896 INFO [stderr]     |
Nov 27 22:42:12.896 INFO [stderr] 144 |     let mut ret = match req.send() {
Nov 27 22:42:12.896 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.896 INFO [stderr]     |         |
Nov 27 22:42:12.896 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.896 INFO [stderr] 
Nov 27 22:42:12.896 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.897 INFO [stderr]    --> src/main.rs:137:38
Nov 27 22:42:12.897 INFO [stderr]     |
Nov 27 22:42:12.897 INFO [stderr] 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Nov 27 22:42:12.897 INFO [stderr]     |                                      ----^^^^^
Nov 27 22:42:12.897 INFO [stderr]     |                                      |
Nov 27 22:42:12.897 INFO [stderr]     |                                      help: remove this `mut`
Nov 27 22:42:12.897 INFO [stderr] 
Nov 27 22:42:12.924 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.924 INFO [stderr]    --> src/main.rs:109:9
Nov 27 22:42:12.924 INFO [stderr]     |
Nov 27 22:42:12.924 INFO [stderr] 109 |     let mut c = Client::new();
Nov 27 22:42:12.924 INFO [stderr]     |         ----^
Nov 27 22:42:12.924 INFO [stderr]     |         |
Nov 27 22:42:12.924 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.924 INFO [stderr] 
Nov 27 22:42:12.925 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.925 INFO [stderr]    --> src/main.rs:110:9
Nov 27 22:42:12.925 INFO [stderr]     |
Nov 27 22:42:12.925 INFO [stderr] 110 |     let mut req = c.get(&url);
Nov 27 22:42:12.925 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.925 INFO [stderr]     |         |
Nov 27 22:42:12.925 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.925 INFO [stderr] 
Nov 27 22:42:12.925 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.925 INFO [stderr]    --> src/main.rs:111:9
Nov 27 22:42:12.925 INFO [stderr]     |
Nov 27 22:42:12.925 INFO [stderr] 111 |     let mut ret = match req.send() {
Nov 27 22:42:12.925 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.925 INFO [stderr]     |         |
Nov 27 22:42:12.925 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.925 INFO [stderr] 
Nov 27 22:42:12.925 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.925 INFO [stderr]    --> src/main.rs:142:9
Nov 27 22:42:12.925 INFO [stderr]     |
Nov 27 22:42:12.925 INFO [stderr] 142 |     let mut c = Client::new();
Nov 27 22:42:12.925 INFO [stderr]     |         ----^
Nov 27 22:42:12.925 INFO [stderr]     |         |
Nov 27 22:42:12.925 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.925 INFO [stderr] 
Nov 27 22:42:12.925 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.925 INFO [stderr]    --> src/main.rs:143:9
Nov 27 22:42:12.925 INFO [stderr]     |
Nov 27 22:42:12.925 INFO [stderr] 143 |     let mut req = c.get(&url);
Nov 27 22:42:12.925 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.925 INFO [stderr]     |         |
Nov 27 22:42:12.925 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.925 INFO [stderr] 
Nov 27 22:42:12.925 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.925 INFO [stderr]    --> src/main.rs:144:9
Nov 27 22:42:12.925 INFO [stderr]     |
Nov 27 22:42:12.925 INFO [stderr] 144 |     let mut ret = match req.send() {
Nov 27 22:42:12.925 INFO [stderr]     |         ----^^^
Nov 27 22:42:12.925 INFO [stderr]     |         |
Nov 27 22:42:12.925 INFO [stderr]     |         help: remove this `mut`
Nov 27 22:42:12.925 INFO [stderr] 
Nov 27 22:42:12.925 INFO [stderr] warning: variable does not need to be mutable
Nov 27 22:42:12.925 INFO [stderr]    --> src/main.rs:137:38
Nov 27 22:42:12.925 INFO [stderr]     |
Nov 27 22:42:12.925 INFO [stderr] 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Nov 27 22:42:12.925 INFO [stderr]     |                                      ----^^^^^
Nov 27 22:42:12.925 INFO [stderr]     |                                      |
Nov 27 22:42:12.925 INFO [stderr]     |                                      help: remove this `mut`
Nov 27 22:42:12.925 INFO [stderr] 
Nov 27 22:42:12.974 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.58s
Nov 27 22:42:12.980 INFO [stderr] su: No module specific data is present
Nov 27 22:42:13.988 INFO running `"docker" "inspect" "619944ffa6083b7dbff09f5bbb75c15facbe562a2e2c8a955e719f6b071ec940"`
Nov 27 22:42:14.306 INFO running `"docker" "rm" "-f" "619944ffa6083b7dbff09f5bbb75c15facbe562a2e2c8a955e719f6b071ec940"`
Nov 27 22:42:14.576 INFO [stdout] 619944ffa6083b7dbff09f5bbb75c15facbe562a2e2c8a955e719f6b071ec940