Dec 13 07:14:23.480 INFO testing pjungwir/rust-thread-read-to-string against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 07:14:23.480 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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"`
Dec 13 07:14:23.920 INFO [stdout] 707fbb7a83a82f84f12dce20d25522b27d9e970a478a79918b17327861f8ee23
Dec 13 07:14:23.924 INFO running `"docker" "start" "-a" "707fbb7a83a82f84f12dce20d25522b27d9e970a478a79918b17327861f8ee23"`
Dec 13 07:14:25.403 INFO [stderr] usermod: no changes
Dec 13 07:14:25.531 INFO [stderr]    Compiling mime v0.2.2
Dec 13 07:14:25.531 INFO [stderr]    Compiling hyper v0.10.5
Dec 13 07:14:37.516 INFO [stderr]    Compiling thread-read-to-string v0.1.0 (/source)
Dec 13 07:14:38.039 INFO [stderr] warning: unused import: `Request`
Dec 13 07:14:38.039 INFO [stderr]  --> src/main.rs:9:21
Dec 13 07:14:38.039 INFO [stderr]   |
Dec 13 07:14:38.039 INFO [stderr] 9 | use hyper::client::{Request, Response};
Dec 13 07:14:38.039 INFO [stderr]   |                     ^^^^^^^
Dec 13 07:14:38.039 INFO [stderr]   |
Dec 13 07:14:38.039 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 07:14:38.039 INFO [stderr] 
Dec 13 07:14:38.123 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:38.123 INFO [stderr]   --> src/main.rs:27:7
Dec 13 07:14:38.123 INFO [stderr]    |
Dec 13 07:14:38.123 INFO [stderr] 27 |   let t = thread::spawn(move || {
Dec 13 07:14:38.123 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 13 07:14:38.123 INFO [stderr]    |
Dec 13 07:14:38.123 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 07:14:38.123 INFO [stderr] 
Dec 13 07:14:38.123 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:38.123 INFO [stderr]   --> src/main.rs:73:7
Dec 13 07:14:38.123 INFO [stderr]    |
Dec 13 07:14:38.123 INFO [stderr] 73 |   let t = thread::spawn(move || {
Dec 13 07:14:38.123 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 13 07:14:38.123 INFO [stderr] 
Dec 13 07:14:38.123 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:38.123 INFO [stderr]    --> src/main.rs:108:7
Dec 13 07:14:38.123 INFO [stderr]     |
Dec 13 07:14:38.123 INFO [stderr] 108 |   let t = thread::spawn(move || {
Dec 13 07:14:38.123 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 13 07:14:38.123 INFO [stderr] 
Dec 13 07:14:38.123 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:38.123 INFO [stderr]    --> src/main.rs:141:7
Dec 13 07:14:38.123 INFO [stderr]     |
Dec 13 07:14:38.123 INFO [stderr] 141 |   let t = thread::spawn(move || {
Dec 13 07:14:38.123 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 13 07:14:38.123 INFO [stderr] 
Dec 13 07:14:38.123 INFO [stderr] warning: unused variable: `status_code`
Dec 13 07:14:38.123 INFO [stderr]    --> src/main.rs:185:8
Dec 13 07:14:38.123 INFO [stderr]     |
Dec 13 07:14:38.123 INFO [stderr] 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Dec 13 07:14:38.123 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 13 07:14:38.123 INFO [stderr] 
Dec 13 07:14:38.123 INFO [stderr] warning: unused variable: `status_code`
Dec 13 07:14:38.123 INFO [stderr]    --> src/main.rs:188:8
Dec 13 07:14:38.123 INFO [stderr]     |
Dec 13 07:14:38.123 INFO [stderr] 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Dec 13 07:14:38.124 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 13 07:14:38.124 INFO [stderr] 
Dec 13 07:14:38.124 INFO [stderr] warning: unused variable: `status_code`
Dec 13 07:14:38.124 INFO [stderr]    --> src/main.rs:193:7
Dec 13 07:14:38.124 INFO [stderr]     |
Dec 13 07:14:38.124 INFO [stderr] 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Dec 13 07:14:38.124 INFO [stderr]     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 13 07:14:38.124 INFO [stderr] 
Dec 13 07:14:38.126 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.126 INFO [stderr]   --> src/main.rs:19:7
Dec 13 07:14:38.126 INFO [stderr]    |
Dec 13 07:14:38.126 INFO [stderr] 19 |   let mut c = Client::new();
Dec 13 07:14:38.126 INFO [stderr]    |       ----^
Dec 13 07:14:38.126 INFO [stderr]    |       |
Dec 13 07:14:38.126 INFO [stderr]    |       help: remove this `mut`
Dec 13 07:14:38.126 INFO [stderr]    |
Dec 13 07:14:38.126 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 07:14:38.126 INFO [stderr] 
Dec 13 07:14:38.126 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.126 INFO [stderr]   --> src/main.rs:20:7
Dec 13 07:14:38.126 INFO [stderr]    |
Dec 13 07:14:38.126 INFO [stderr] 20 |   let mut req = c.get(url);
Dec 13 07:14:38.126 INFO [stderr]    |       ----^^^
Dec 13 07:14:38.126 INFO [stderr]    |       |
Dec 13 07:14:38.126 INFO [stderr]    |       help: remove this `mut`
Dec 13 07:14:38.126 INFO [stderr] 
Dec 13 07:14:38.136 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.137 INFO [stderr]   --> src/main.rs:74:9
Dec 13 07:14:38.137 INFO [stderr]    |
Dec 13 07:14:38.137 INFO [stderr] 74 |     let mut c = Client::new();
Dec 13 07:14:38.137 INFO [stderr]    |         ----^
Dec 13 07:14:38.137 INFO [stderr]    |         |
Dec 13 07:14:38.138 INFO [stderr]    |         help: remove this `mut`
Dec 13 07:14:38.138 INFO [stderr] 
Dec 13 07:14:38.138 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.138 INFO [stderr]   --> src/main.rs:75:9
Dec 13 07:14:38.138 INFO [stderr]    |
Dec 13 07:14:38.139 INFO [stderr] 75 |     let mut req = c.get(&url);
Dec 13 07:14:38.139 INFO [stderr]    |         ----^^^
Dec 13 07:14:38.139 INFO [stderr]    |         |
Dec 13 07:14:38.139 INFO [stderr]    |         help: remove this `mut`
Dec 13 07:14:38.139 INFO [stderr] 
Dec 13 07:14:38.139 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.139 INFO [stderr]   --> src/main.rs:76:9
Dec 13 07:14:38.139 INFO [stderr]    |
Dec 13 07:14:38.139 INFO [stderr] 76 |     let mut ret = match req.send() {
Dec 13 07:14:38.139 INFO [stderr]    |         ----^^^
Dec 13 07:14:38.139 INFO [stderr]    |         |
Dec 13 07:14:38.139 INFO [stderr]    |         help: remove this `mut`
Dec 13 07:14:38.139 INFO [stderr] 
Dec 13 07:14:38.139 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.139 INFO [stderr]    --> src/main.rs:109:9
Dec 13 07:14:38.139 INFO [stderr]     |
Dec 13 07:14:38.139 INFO [stderr] 109 |     let mut c = Client::new();
Dec 13 07:14:38.139 INFO [stderr]     |         ----^
Dec 13 07:14:38.139 INFO [stderr]     |         |
Dec 13 07:14:38.139 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:38.139 INFO [stderr] 
Dec 13 07:14:38.139 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.139 INFO [stderr]    --> src/main.rs:110:9
Dec 13 07:14:38.139 INFO [stderr]     |
Dec 13 07:14:38.139 INFO [stderr] 110 |     let mut req = c.get(&url);
Dec 13 07:14:38.139 INFO [stderr]     |         ----^^^
Dec 13 07:14:38.139 INFO [stderr]     |         |
Dec 13 07:14:38.139 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:38.139 INFO [stderr] 
Dec 13 07:14:38.139 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.139 INFO [stderr]    --> src/main.rs:111:9
Dec 13 07:14:38.139 INFO [stderr]     |
Dec 13 07:14:38.139 INFO [stderr] 111 |     let mut ret = match req.send() {
Dec 13 07:14:38.139 INFO [stderr]     |         ----^^^
Dec 13 07:14:38.139 INFO [stderr]     |         |
Dec 13 07:14:38.139 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:38.139 INFO [stderr] 
Dec 13 07:14:38.140 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.140 INFO [stderr]    --> src/main.rs:142:9
Dec 13 07:14:38.140 INFO [stderr]     |
Dec 13 07:14:38.141 INFO [stderr] 142 |     let mut c = Client::new();
Dec 13 07:14:38.141 INFO [stderr]     |         ----^
Dec 13 07:14:38.141 INFO [stderr]     |         |
Dec 13 07:14:38.141 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:38.141 INFO [stderr] 
Dec 13 07:14:38.141 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.141 INFO [stderr]    --> src/main.rs:143:9
Dec 13 07:14:38.141 INFO [stderr]     |
Dec 13 07:14:38.141 INFO [stderr] 143 |     let mut req = c.get(&url);
Dec 13 07:14:38.141 INFO [stderr]     |         ----^^^
Dec 13 07:14:38.141 INFO [stderr]     |         |
Dec 13 07:14:38.141 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:38.141 INFO [stderr] 
Dec 13 07:14:38.141 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.141 INFO [stderr]    --> src/main.rs:144:9
Dec 13 07:14:38.141 INFO [stderr]     |
Dec 13 07:14:38.141 INFO [stderr] 144 |     let mut ret = match req.send() {
Dec 13 07:14:38.141 INFO [stderr]     |         ----^^^
Dec 13 07:14:38.141 INFO [stderr]     |         |
Dec 13 07:14:38.141 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:38.141 INFO [stderr] 
Dec 13 07:14:38.141 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:38.141 INFO [stderr]    --> src/main.rs:137:38
Dec 13 07:14:38.141 INFO [stderr]     |
Dec 13 07:14:38.141 INFO [stderr] 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Dec 13 07:14:38.141 INFO [stderr]     |                                      ----^^^^^
Dec 13 07:14:38.141 INFO [stderr]     |                                      |
Dec 13 07:14:38.141 INFO [stderr]     |                                      help: remove this `mut`
Dec 13 07:14:38.141 INFO [stderr] 
Dec 13 07:14:42.174 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.75s
Dec 13 07:14:42.180 INFO [stderr] su: No module specific data is present
Dec 13 07:14:43.596 INFO running `"docker" "inspect" "707fbb7a83a82f84f12dce20d25522b27d9e970a478a79918b17327861f8ee23"`
Dec 13 07:14:43.889 INFO running `"docker" "rm" "-f" "707fbb7a83a82f84f12dce20d25522b27d9e970a478a79918b17327861f8ee23"`
Dec 13 07:14:44.311 INFO [stdout] 707fbb7a83a82f84f12dce20d25522b27d9e970a478a79918b17327861f8ee23
Dec 13 07:14:44.318 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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"`
Dec 13 07:14:44.839 INFO [stdout] fb5e5c57b1173482e381ec1f452b180a2b6f88fbcd9cfb5acce66b64db7d60ae
Dec 13 07:14:44.841 INFO running `"docker" "start" "-a" "fb5e5c57b1173482e381ec1f452b180a2b6f88fbcd9cfb5acce66b64db7d60ae"`
Dec 13 07:14:46.463 INFO [stderr] usermod: no changes
Dec 13 07:14:46.595 INFO [stderr]    Compiling thread-read-to-string v0.1.0 (/source)
Dec 13 07:14:47.307 INFO [stderr] warning: unused import: `Request`
Dec 13 07:14:47.307 INFO [stderr]  --> src/main.rs:9:21
Dec 13 07:14:47.307 INFO [stderr]   |
Dec 13 07:14:47.307 INFO [stderr] 9 | use hyper::client::{Request, Response};
Dec 13 07:14:47.307 INFO [stderr]   |                     ^^^^^^^
Dec 13 07:14:47.307 INFO [stderr]   |
Dec 13 07:14:47.307 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 07:14:47.307 INFO [stderr] 
Dec 13 07:14:47.391 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:47.391 INFO [stderr]   --> src/main.rs:27:7
Dec 13 07:14:47.391 INFO [stderr]    |
Dec 13 07:14:47.391 INFO [stderr] 27 |   let t = thread::spawn(move || {
Dec 13 07:14:47.391 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 13 07:14:47.391 INFO [stderr]    |
Dec 13 07:14:47.391 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 07:14:47.391 INFO [stderr] 
Dec 13 07:14:47.391 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:47.391 INFO [stderr]   --> src/main.rs:73:7
Dec 13 07:14:47.391 INFO [stderr]    |
Dec 13 07:14:47.391 INFO [stderr] 73 |   let t = thread::spawn(move || {
Dec 13 07:14:47.391 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 13 07:14:47.391 INFO [stderr] 
Dec 13 07:14:47.391 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:47.391 INFO [stderr]    --> src/main.rs:108:7
Dec 13 07:14:47.391 INFO [stderr]     |
Dec 13 07:14:47.391 INFO [stderr] 108 |   let t = thread::spawn(move || {
Dec 13 07:14:47.391 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 13 07:14:47.391 INFO [stderr] 
Dec 13 07:14:47.391 INFO [stderr] warning: unused variable: `t`
Dec 13 07:14:47.391 INFO [stderr]    --> src/main.rs:141:7
Dec 13 07:14:47.391 INFO [stderr]     |
Dec 13 07:14:47.391 INFO [stderr] 141 |   let t = thread::spawn(move || {
Dec 13 07:14:47.391 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 13 07:14:47.391 INFO [stderr] 
Dec 13 07:14:47.391 INFO [stderr] warning: unused variable: `status_code`
Dec 13 07:14:47.391 INFO [stderr]    --> src/main.rs:185:8
Dec 13 07:14:47.391 INFO [stderr]     |
Dec 13 07:14:47.391 INFO [stderr] 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Dec 13 07:14:47.391 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 13 07:14:47.391 INFO [stderr] 
Dec 13 07:14:47.391 INFO [stderr] warning: unused variable: `status_code`
Dec 13 07:14:47.391 INFO [stderr]    --> src/main.rs:188:8
Dec 13 07:14:47.391 INFO [stderr]     |
Dec 13 07:14:47.391 INFO [stderr] 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Dec 13 07:14:47.391 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 13 07:14:47.391 INFO [stderr] 
Dec 13 07:14:47.391 INFO [stderr] warning: unused variable: `status_code`
Dec 13 07:14:47.391 INFO [stderr]    --> src/main.rs:193:7
Dec 13 07:14:47.391 INFO [stderr]     |
Dec 13 07:14:47.391 INFO [stderr] 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Dec 13 07:14:47.391 INFO [stderr]     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 13 07:14:47.391 INFO [stderr] 
Dec 13 07:14:47.395 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.395 INFO [stderr]   --> src/main.rs:19:7
Dec 13 07:14:47.395 INFO [stderr]    |
Dec 13 07:14:47.395 INFO [stderr] 19 |   let mut c = Client::new();
Dec 13 07:14:47.395 INFO [stderr]    |       ----^
Dec 13 07:14:47.395 INFO [stderr]    |       |
Dec 13 07:14:47.395 INFO [stderr]    |       help: remove this `mut`
Dec 13 07:14:47.395 INFO [stderr]    |
Dec 13 07:14:47.395 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 07:14:47.395 INFO [stderr] 
Dec 13 07:14:47.395 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.395 INFO [stderr]   --> src/main.rs:20:7
Dec 13 07:14:47.395 INFO [stderr]    |
Dec 13 07:14:47.395 INFO [stderr] 20 |   let mut req = c.get(url);
Dec 13 07:14:47.395 INFO [stderr]    |       ----^^^
Dec 13 07:14:47.395 INFO [stderr]    |       |
Dec 13 07:14:47.395 INFO [stderr]    |       help: remove this `mut`
Dec 13 07:14:47.395 INFO [stderr] 
Dec 13 07:14:47.408 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.408 INFO [stderr]   --> src/main.rs:74:9
Dec 13 07:14:47.408 INFO [stderr]    |
Dec 13 07:14:47.408 INFO [stderr] 74 |     let mut c = Client::new();
Dec 13 07:14:47.408 INFO [stderr]    |         ----^
Dec 13 07:14:47.408 INFO [stderr]    |         |
Dec 13 07:14:47.408 INFO [stderr]    |         help: remove this `mut`
Dec 13 07:14:47.408 INFO [stderr] 
Dec 13 07:14:47.411 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.411 INFO [stderr]   --> src/main.rs:75:9
Dec 13 07:14:47.411 INFO [stderr]    |
Dec 13 07:14:47.411 INFO [stderr] 75 |     let mut req = c.get(&url);
Dec 13 07:14:47.411 INFO [stderr]    |         ----^^^
Dec 13 07:14:47.411 INFO [stderr]    |         |
Dec 13 07:14:47.411 INFO [stderr]    |         help: remove this `mut`
Dec 13 07:14:47.411 INFO [stderr] 
Dec 13 07:14:47.411 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.411 INFO [stderr]   --> src/main.rs:76:9
Dec 13 07:14:47.411 INFO [stderr]    |
Dec 13 07:14:47.411 INFO [stderr] 76 |     let mut ret = match req.send() {
Dec 13 07:14:47.411 INFO [stderr]    |         ----^^^
Dec 13 07:14:47.411 INFO [stderr]    |         |
Dec 13 07:14:47.411 INFO [stderr]    |         help: remove this `mut`
Dec 13 07:14:47.411 INFO [stderr] 
Dec 13 07:14:47.411 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.411 INFO [stderr]    --> src/main.rs:109:9
Dec 13 07:14:47.411 INFO [stderr]     |
Dec 13 07:14:47.411 INFO [stderr] 109 |     let mut c = Client::new();
Dec 13 07:14:47.411 INFO [stderr]     |         ----^
Dec 13 07:14:47.411 INFO [stderr]     |         |
Dec 13 07:14:47.411 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:47.411 INFO [stderr] 
Dec 13 07:14:47.411 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.411 INFO [stderr]    --> src/main.rs:110:9
Dec 13 07:14:47.411 INFO [stderr]     |
Dec 13 07:14:47.411 INFO [stderr] 110 |     let mut req = c.get(&url);
Dec 13 07:14:47.411 INFO [stderr]     |         ----^^^
Dec 13 07:14:47.411 INFO [stderr]     |         |
Dec 13 07:14:47.411 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:47.411 INFO [stderr] 
Dec 13 07:14:47.411 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.411 INFO [stderr]    --> src/main.rs:111:9
Dec 13 07:14:47.411 INFO [stderr]     |
Dec 13 07:14:47.411 INFO [stderr] 111 |     let mut ret = match req.send() {
Dec 13 07:14:47.411 INFO [stderr]     |         ----^^^
Dec 13 07:14:47.411 INFO [stderr]     |         |
Dec 13 07:14:47.411 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:47.411 INFO [stderr] 
Dec 13 07:14:47.415 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.415 INFO [stderr]    --> src/main.rs:142:9
Dec 13 07:14:47.415 INFO [stderr]     |
Dec 13 07:14:47.415 INFO [stderr] 142 |     let mut c = Client::new();
Dec 13 07:14:47.415 INFO [stderr]     |         ----^
Dec 13 07:14:47.415 INFO [stderr]     |         |
Dec 13 07:14:47.415 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:47.415 INFO [stderr] 
Dec 13 07:14:47.415 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.415 INFO [stderr]    --> src/main.rs:143:9
Dec 13 07:14:47.415 INFO [stderr]     |
Dec 13 07:14:47.415 INFO [stderr] 143 |     let mut req = c.get(&url);
Dec 13 07:14:47.415 INFO [stderr]     |         ----^^^
Dec 13 07:14:47.415 INFO [stderr]     |         |
Dec 13 07:14:47.415 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:47.415 INFO [stderr] 
Dec 13 07:14:47.415 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.415 INFO [stderr]    --> src/main.rs:144:9
Dec 13 07:14:47.415 INFO [stderr]     |
Dec 13 07:14:47.415 INFO [stderr] 144 |     let mut ret = match req.send() {
Dec 13 07:14:47.415 INFO [stderr]     |         ----^^^
Dec 13 07:14:47.415 INFO [stderr]     |         |
Dec 13 07:14:47.415 INFO [stderr]     |         help: remove this `mut`
Dec 13 07:14:47.415 INFO [stderr] 
Dec 13 07:14:47.415 INFO [stderr] warning: variable does not need to be mutable
Dec 13 07:14:47.415 INFO [stderr]    --> src/main.rs:137:38
Dec 13 07:14:47.415 INFO [stderr]     |
Dec 13 07:14:47.415 INFO [stderr] 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Dec 13 07:14:47.415 INFO [stderr]     |                                      ----^^^^^
Dec 13 07:14:47.415 INFO [stderr]     |                                      |
Dec 13 07:14:47.415 INFO [stderr]     |                                      help: remove this `mut`
Dec 13 07:14:47.415 INFO [stderr] 
Dec 13 07:14:47.859 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
Dec 13 07:14:47.865 INFO [stderr] su: No module specific data is present
Dec 13 07:14:48.568 INFO running `"docker" "inspect" "fb5e5c57b1173482e381ec1f452b180a2b6f88fbcd9cfb5acce66b64db7d60ae"`
Dec 13 07:14:48.867 INFO running `"docker" "rm" "-f" "fb5e5c57b1173482e381ec1f452b180a2b6f88fbcd9cfb5acce66b64db7d60ae"`
Dec 13 07:14:49.283 INFO [stdout] fb5e5c57b1173482e381ec1f452b180a2b6f88fbcd9cfb5acce66b64db7d60ae
Dec 13 07:14:49.285 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-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"`
Dec 13 07:14:49.795 INFO [stdout] 300895698e947120eec8a79ddc92cb18200cd5191188144e06b7d3b677d22e48
Dec 13 07:14:49.797 INFO running `"docker" "start" "-a" "300895698e947120eec8a79ddc92cb18200cd5191188144e06b7d3b677d22e48"`
Dec 13 07:14:51.271 INFO [stderr] usermod: no changes
Dec 13 07:14:51.455 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
Dec 13 07:14:51.455 INFO [stderr]      Running /target/debug/deps/thread_read_to_string-78f42d770fa54545
Dec 13 07:14:51.479 INFO [stdout] 
Dec 13 07:14:51.479 INFO [stdout] running 0 tests
Dec 13 07:14:51.479 INFO [stdout] 
Dec 13 07:14:51.479 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 07:14:51.479 INFO [stdout] 
Dec 13 07:14:51.491 INFO [stderr] su: No module specific data is present
Dec 13 07:14:52.397 INFO running `"docker" "inspect" "300895698e947120eec8a79ddc92cb18200cd5191188144e06b7d3b677d22e48"`
Dec 13 07:14:52.660 INFO running `"docker" "rm" "-f" "300895698e947120eec8a79ddc92cb18200cd5191188144e06b7d3b677d22e48"`
Dec 13 07:14:52.949 INFO [stdout] 300895698e947120eec8a79ddc92cb18200cd5191188144e06b7d3b677d22e48