Dec 01 05:58:34.984 INFO testing pjungwir/rust-thread-read-to-string against 1.30.1 for beta-1.31-5
Dec 01 05:58:34.984 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 05:58:35.573 INFO [stdout] 8a780e2d45f90a6effda2a8986e956e3ad2e115e7f885d7ae0c34245c6dadfc0
Dec 01 05:58:35.576 INFO running `"docker" "start" "-a" "8a780e2d45f90a6effda2a8986e956e3ad2e115e7f885d7ae0c34245c6dadfc0"`
Dec 01 05:58:38.090 INFO [stderr] usermod: no changes
Dec 01 05:58:38.235 INFO [stderr]    Compiling mime v0.2.2
Dec 01 05:58:38.235 INFO [stderr]    Compiling hyper v0.10.5
Dec 01 05:58:48.584 INFO [stderr]    Compiling thread-read-to-string v0.1.0 (/source)
Dec 01 05:58:49.251 INFO [stderr] warning: unused import: `Request`
Dec 01 05:58:49.251 INFO [stderr]  --> src/main.rs:9:21
Dec 01 05:58:49.251 INFO [stderr]   |
Dec 01 05:58:49.251 INFO [stderr] 9 | use hyper::client::{Request, Response};
Dec 01 05:58:49.251 INFO [stderr]   |                     ^^^^^^^
Dec 01 05:58:49.251 INFO [stderr]   |
Dec 01 05:58:49.251 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 05:58:49.251 INFO [stderr] 
Dec 01 05:58:49.356 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:49.356 INFO [stderr]   --> src/main.rs:27:7
Dec 01 05:58:49.356 INFO [stderr]    |
Dec 01 05:58:49.356 INFO [stderr] 27 |   let t = thread::spawn(move || {
Dec 01 05:58:49.356 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 01 05:58:49.356 INFO [stderr]    |
Dec 01 05:58:49.356 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 05:58:49.356 INFO [stderr] 
Dec 01 05:58:49.356 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:49.356 INFO [stderr]   --> src/main.rs:73:7
Dec 01 05:58:49.356 INFO [stderr]    |
Dec 01 05:58:49.356 INFO [stderr] 73 |   let t = thread::spawn(move || {
Dec 01 05:58:49.356 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 01 05:58:49.356 INFO [stderr] 
Dec 01 05:58:49.356 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:49.356 INFO [stderr]    --> src/main.rs:108:7
Dec 01 05:58:49.357 INFO [stderr]     |
Dec 01 05:58:49.357 INFO [stderr] 108 |   let t = thread::spawn(move || {
Dec 01 05:58:49.357 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 01 05:58:49.357 INFO [stderr] 
Dec 01 05:58:49.357 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:49.357 INFO [stderr]    --> src/main.rs:141:7
Dec 01 05:58:49.357 INFO [stderr]     |
Dec 01 05:58:49.357 INFO [stderr] 141 |   let t = thread::spawn(move || {
Dec 01 05:58:49.357 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 01 05:58:49.357 INFO [stderr] 
Dec 01 05:58:49.357 INFO [stderr] warning: unused variable: `status_code`
Dec 01 05:58:49.357 INFO [stderr]    --> src/main.rs:185:8
Dec 01 05:58:49.357 INFO [stderr]     |
Dec 01 05:58:49.357 INFO [stderr] 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Dec 01 05:58:49.357 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 01 05:58:49.357 INFO [stderr] 
Dec 01 05:58:49.357 INFO [stderr] warning: unused variable: `status_code`
Dec 01 05:58:49.357 INFO [stderr]    --> src/main.rs:188:8
Dec 01 05:58:49.357 INFO [stderr]     |
Dec 01 05:58:49.357 INFO [stderr] 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Dec 01 05:58:49.357 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 01 05:58:49.357 INFO [stderr] 
Dec 01 05:58:49.357 INFO [stderr] warning: unused variable: `status_code`
Dec 01 05:58:49.357 INFO [stderr]    --> src/main.rs:193:7
Dec 01 05:58:49.357 INFO [stderr]     |
Dec 01 05:58:49.357 INFO [stderr] 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Dec 01 05:58:49.357 INFO [stderr]     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 01 05:58:49.357 INFO [stderr] 
Dec 01 05:58:49.357 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.357 INFO [stderr]   --> src/main.rs:19:7
Dec 01 05:58:49.357 INFO [stderr]    |
Dec 01 05:58:49.357 INFO [stderr] 19 |   let mut c = Client::new();
Dec 01 05:58:49.357 INFO [stderr]    |       ----^
Dec 01 05:58:49.357 INFO [stderr]    |       |
Dec 01 05:58:49.357 INFO [stderr]    |       help: remove this `mut`
Dec 01 05:58:49.357 INFO [stderr]    |
Dec 01 05:58:49.357 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 05:58:49.357 INFO [stderr] 
Dec 01 05:58:49.357 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.357 INFO [stderr]   --> src/main.rs:20:7
Dec 01 05:58:49.357 INFO [stderr]    |
Dec 01 05:58:49.357 INFO [stderr] 20 |   let mut req = c.get(url);
Dec 01 05:58:49.357 INFO [stderr]    |       ----^^^
Dec 01 05:58:49.357 INFO [stderr]    |       |
Dec 01 05:58:49.357 INFO [stderr]    |       help: remove this `mut`
Dec 01 05:58:49.357 INFO [stderr] 
Dec 01 05:58:49.368 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]   --> src/main.rs:74:9
Dec 01 05:58:49.369 INFO [stderr]    |
Dec 01 05:58:49.369 INFO [stderr] 74 |     let mut c = Client::new();
Dec 01 05:58:49.369 INFO [stderr]    |         ----^
Dec 01 05:58:49.369 INFO [stderr]    |         |
Dec 01 05:58:49.369 INFO [stderr]    |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]   --> src/main.rs:75:9
Dec 01 05:58:49.369 INFO [stderr]    |
Dec 01 05:58:49.369 INFO [stderr] 75 |     let mut req = c.get(&url);
Dec 01 05:58:49.369 INFO [stderr]    |         ----^^^
Dec 01 05:58:49.369 INFO [stderr]    |         |
Dec 01 05:58:49.369 INFO [stderr]    |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]   --> src/main.rs:76:9
Dec 01 05:58:49.369 INFO [stderr]    |
Dec 01 05:58:49.369 INFO [stderr] 76 |     let mut ret = match req.send() {
Dec 01 05:58:49.369 INFO [stderr]    |         ----^^^
Dec 01 05:58:49.369 INFO [stderr]    |         |
Dec 01 05:58:49.369 INFO [stderr]    |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]    --> src/main.rs:109:9
Dec 01 05:58:49.369 INFO [stderr]     |
Dec 01 05:58:49.369 INFO [stderr] 109 |     let mut c = Client::new();
Dec 01 05:58:49.369 INFO [stderr]     |         ----^
Dec 01 05:58:49.369 INFO [stderr]     |         |
Dec 01 05:58:49.369 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]    --> src/main.rs:110:9
Dec 01 05:58:49.369 INFO [stderr]     |
Dec 01 05:58:49.369 INFO [stderr] 110 |     let mut req = c.get(&url);
Dec 01 05:58:49.369 INFO [stderr]     |         ----^^^
Dec 01 05:58:49.369 INFO [stderr]     |         |
Dec 01 05:58:49.369 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]    --> src/main.rs:111:9
Dec 01 05:58:49.369 INFO [stderr]     |
Dec 01 05:58:49.369 INFO [stderr] 111 |     let mut ret = match req.send() {
Dec 01 05:58:49.369 INFO [stderr]     |         ----^^^
Dec 01 05:58:49.369 INFO [stderr]     |         |
Dec 01 05:58:49.369 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]    --> src/main.rs:142:9
Dec 01 05:58:49.369 INFO [stderr]     |
Dec 01 05:58:49.369 INFO [stderr] 142 |     let mut c = Client::new();
Dec 01 05:58:49.369 INFO [stderr]     |         ----^
Dec 01 05:58:49.369 INFO [stderr]     |         |
Dec 01 05:58:49.369 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]    --> src/main.rs:143:9
Dec 01 05:58:49.369 INFO [stderr]     |
Dec 01 05:58:49.369 INFO [stderr] 143 |     let mut req = c.get(&url);
Dec 01 05:58:49.369 INFO [stderr]     |         ----^^^
Dec 01 05:58:49.369 INFO [stderr]     |         |
Dec 01 05:58:49.369 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]    --> src/main.rs:144:9
Dec 01 05:58:49.369 INFO [stderr]     |
Dec 01 05:58:49.369 INFO [stderr] 144 |     let mut ret = match req.send() {
Dec 01 05:58:49.369 INFO [stderr]     |         ----^^^
Dec 01 05:58:49.369 INFO [stderr]     |         |
Dec 01 05:58:49.369 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:49.369 INFO [stderr] 
Dec 01 05:58:49.369 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:49.369 INFO [stderr]    --> src/main.rs:137:38
Dec 01 05:58:49.369 INFO [stderr]     |
Dec 01 05:58:49.369 INFO [stderr] 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Dec 01 05:58:49.369 INFO [stderr]     |                                      ----^^^^^
Dec 01 05:58:49.369 INFO [stderr]     |                                      |
Dec 01 05:58:49.369 INFO [stderr]     |                                      help: remove this `mut`
Dec 01 05:58:49.370 INFO [stderr] 
Dec 01 05:58:52.003 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.88s
Dec 01 05:58:52.012 INFO [stderr] su: No module specific data is present
Dec 01 05:58:52.927 INFO running `"docker" "inspect" "8a780e2d45f90a6effda2a8986e956e3ad2e115e7f885d7ae0c34245c6dadfc0"`
Dec 01 05:58:53.251 INFO running `"docker" "rm" "-f" "8a780e2d45f90a6effda2a8986e956e3ad2e115e7f885d7ae0c34245c6dadfc0"`
Dec 01 05:58:53.547 INFO [stdout] 8a780e2d45f90a6effda2a8986e956e3ad2e115e7f885d7ae0c34245c6dadfc0
Dec 01 05:58:53.551 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 05:58:54.007 INFO [stdout] 3acd29f28e661750984e2d14fecb7e430f30762e084b5e71426221c9a5901687
Dec 01 05:58:54.009 INFO running `"docker" "start" "-a" "3acd29f28e661750984e2d14fecb7e430f30762e084b5e71426221c9a5901687"`
Dec 01 05:58:56.138 INFO [stderr] usermod: no changes
Dec 01 05:58:56.247 INFO [stderr]    Compiling thread-read-to-string v0.1.0 (/source)
Dec 01 05:58:56.847 INFO [stderr] warning: unused import: `Request`
Dec 01 05:58:56.847 INFO [stderr]  --> src/main.rs:9:21
Dec 01 05:58:56.848 INFO [stderr]   |
Dec 01 05:58:56.848 INFO [stderr] 9 | use hyper::client::{Request, Response};
Dec 01 05:58:56.848 INFO [stderr]   |                     ^^^^^^^
Dec 01 05:58:56.849 INFO [stderr]   |
Dec 01 05:58:56.849 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 05:58:56.849 INFO [stderr] 
Dec 01 05:58:56.943 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:56.943 INFO [stderr]   --> src/main.rs:27:7
Dec 01 05:58:56.944 INFO [stderr]    |
Dec 01 05:58:56.944 INFO [stderr] 27 |   let t = thread::spawn(move || {
Dec 01 05:58:56.944 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 01 05:58:56.944 INFO [stderr]    |
Dec 01 05:58:56.945 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 05:58:56.945 INFO [stderr] 
Dec 01 05:58:56.946 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:56.946 INFO [stderr]   --> src/main.rs:73:7
Dec 01 05:58:56.946 INFO [stderr]    |
Dec 01 05:58:56.946 INFO [stderr] 73 |   let t = thread::spawn(move || {
Dec 01 05:58:56.946 INFO [stderr]    |       ^ help: consider using `_t` instead
Dec 01 05:58:56.946 INFO [stderr] 
Dec 01 05:58:56.947 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:56.947 INFO [stderr]    --> src/main.rs:108:7
Dec 01 05:58:56.947 INFO [stderr]     |
Dec 01 05:58:56.947 INFO [stderr] 108 |   let t = thread::spawn(move || {
Dec 01 05:58:56.947 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 01 05:58:56.947 INFO [stderr] 
Dec 01 05:58:56.947 INFO [stderr] warning: unused variable: `t`
Dec 01 05:58:56.947 INFO [stderr]    --> src/main.rs:141:7
Dec 01 05:58:56.947 INFO [stderr]     |
Dec 01 05:58:56.947 INFO [stderr] 141 |   let t = thread::spawn(move || {
Dec 01 05:58:56.947 INFO [stderr]     |       ^ help: consider using `_t` instead
Dec 01 05:58:56.947 INFO [stderr] 
Dec 01 05:58:56.947 INFO [stderr] warning: unused variable: `status_code`
Dec 01 05:58:56.947 INFO [stderr]    --> src/main.rs:185:8
Dec 01 05:58:56.947 INFO [stderr]     |
Dec 01 05:58:56.947 INFO [stderr] 185 |   let (status_code, buf) = get_url_with_timeout_3("http://example.com/").unwrap();
Dec 01 05:58:56.947 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 01 05:58:56.947 INFO [stderr] 
Dec 01 05:58:56.947 INFO [stderr] warning: unused variable: `status_code`
Dec 01 05:58:56.947 INFO [stderr]    --> src/main.rs:188:8
Dec 01 05:58:56.947 INFO [stderr]     |
Dec 01 05:58:56.948 INFO [stderr] 188 |   let (status_code, buf) = get_url_with_timeout_4("http://example.com/").unwrap();
Dec 01 05:58:56.948 INFO [stderr]     |        ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 01 05:58:56.951 INFO [stderr] 
Dec 01 05:58:56.951 INFO [stderr] warning: unused variable: `status_code`
Dec 01 05:58:56.951 INFO [stderr]    --> src/main.rs:193:7
Dec 01 05:58:56.951 INFO [stderr]     |
Dec 01 05:58:56.951 INFO [stderr] 193 |   let status_code = get_url_with_timeout_5("http://example.com/", &shbuf).unwrap();
Dec 01 05:58:56.951 INFO [stderr]     |       ^^^^^^^^^^^ help: consider using `_status_code` instead
Dec 01 05:58:56.951 INFO [stderr] 
Dec 01 05:58:56.951 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.951 INFO [stderr]   --> src/main.rs:19:7
Dec 01 05:58:56.951 INFO [stderr]    |
Dec 01 05:58:56.951 INFO [stderr] 19 |   let mut c = Client::new();
Dec 01 05:58:56.951 INFO [stderr]    |       ----^
Dec 01 05:58:56.952 INFO [stderr]    |       |
Dec 01 05:58:56.952 INFO [stderr]    |       help: remove this `mut`
Dec 01 05:58:56.954 INFO [stderr]    |
Dec 01 05:58:56.954 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 05:58:56.954 INFO [stderr] 
Dec 01 05:58:56.954 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.954 INFO [stderr]   --> src/main.rs:20:7
Dec 01 05:58:56.954 INFO [stderr]    |
Dec 01 05:58:56.954 INFO [stderr] 20 |   let mut req = c.get(url);
Dec 01 05:58:56.954 INFO [stderr]    |       ----^^^
Dec 01 05:58:56.954 INFO [stderr]    |       |
Dec 01 05:58:56.954 INFO [stderr]    |       help: remove this `mut`
Dec 01 05:58:56.954 INFO [stderr] 
Dec 01 05:58:56.960 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.961 INFO [stderr]   --> src/main.rs:74:9
Dec 01 05:58:56.961 INFO [stderr]    |
Dec 01 05:58:56.961 INFO [stderr] 74 |     let mut c = Client::new();
Dec 01 05:58:56.961 INFO [stderr]    |         ----^
Dec 01 05:58:56.961 INFO [stderr]    |         |
Dec 01 05:58:56.961 INFO [stderr]    |         help: remove this `mut`
Dec 01 05:58:56.961 INFO [stderr] 
Dec 01 05:58:56.962 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.962 INFO [stderr]   --> src/main.rs:75:9
Dec 01 05:58:56.962 INFO [stderr]    |
Dec 01 05:58:56.962 INFO [stderr] 75 |     let mut req = c.get(&url);
Dec 01 05:58:56.962 INFO [stderr]    |         ----^^^
Dec 01 05:58:56.963 INFO [stderr]    |         |
Dec 01 05:58:56.963 INFO [stderr]    |         help: remove this `mut`
Dec 01 05:58:56.963 INFO [stderr] 
Dec 01 05:58:56.963 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.963 INFO [stderr]   --> src/main.rs:76:9
Dec 01 05:58:56.964 INFO [stderr]    |
Dec 01 05:58:56.964 INFO [stderr] 76 |     let mut ret = match req.send() {
Dec 01 05:58:56.964 INFO [stderr]    |         ----^^^
Dec 01 05:58:56.964 INFO [stderr]    |         |
Dec 01 05:58:56.964 INFO [stderr]    |         help: remove this `mut`
Dec 01 05:58:56.964 INFO [stderr] 
Dec 01 05:58:56.966 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.967 INFO [stderr]    --> src/main.rs:109:9
Dec 01 05:58:56.967 INFO [stderr]     |
Dec 01 05:58:56.967 INFO [stderr] 109 |     let mut c = Client::new();
Dec 01 05:58:56.967 INFO [stderr]     |         ----^
Dec 01 05:58:56.967 INFO [stderr]     |         |
Dec 01 05:58:56.967 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:56.967 INFO [stderr] 
Dec 01 05:58:56.968 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.968 INFO [stderr]    --> src/main.rs:110:9
Dec 01 05:58:56.968 INFO [stderr]     |
Dec 01 05:58:56.968 INFO [stderr] 110 |     let mut req = c.get(&url);
Dec 01 05:58:56.968 INFO [stderr]     |         ----^^^
Dec 01 05:58:56.968 INFO [stderr]     |         |
Dec 01 05:58:56.968 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:56.969 INFO [stderr] 
Dec 01 05:58:56.969 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.969 INFO [stderr]    --> src/main.rs:111:9
Dec 01 05:58:56.969 INFO [stderr]     |
Dec 01 05:58:56.969 INFO [stderr] 111 |     let mut ret = match req.send() {
Dec 01 05:58:56.970 INFO [stderr]     |         ----^^^
Dec 01 05:58:56.970 INFO [stderr]     |         |
Dec 01 05:58:56.970 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:56.970 INFO [stderr] 
Dec 01 05:58:56.972 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.972 INFO [stderr]    --> src/main.rs:142:9
Dec 01 05:58:56.972 INFO [stderr]     |
Dec 01 05:58:56.973 INFO [stderr] 142 |     let mut c = Client::new();
Dec 01 05:58:56.973 INFO [stderr]     |         ----^
Dec 01 05:58:56.973 INFO [stderr]     |         |
Dec 01 05:58:56.973 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:56.973 INFO [stderr] 
Dec 01 05:58:56.973 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.974 INFO [stderr]    --> src/main.rs:143:9
Dec 01 05:58:56.974 INFO [stderr]     |
Dec 01 05:58:56.974 INFO [stderr] 143 |     let mut req = c.get(&url);
Dec 01 05:58:56.974 INFO [stderr]     |         ----^^^
Dec 01 05:58:56.974 INFO [stderr]     |         |
Dec 01 05:58:56.974 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:56.974 INFO [stderr] 
Dec 01 05:58:56.975 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.975 INFO [stderr]    --> src/main.rs:144:9
Dec 01 05:58:56.975 INFO [stderr]     |
Dec 01 05:58:56.975 INFO [stderr] 144 |     let mut ret = match req.send() {
Dec 01 05:58:56.975 INFO [stderr]     |         ----^^^
Dec 01 05:58:56.975 INFO [stderr]     |         |
Dec 01 05:58:56.975 INFO [stderr]     |         help: remove this `mut`
Dec 01 05:58:56.976 INFO [stderr] 
Dec 01 05:58:56.976 INFO [stderr] warning: variable does not need to be mutable
Dec 01 05:58:56.976 INFO [stderr]    --> src/main.rs:137:38
Dec 01 05:58:56.976 INFO [stderr]     |
Dec 01 05:58:56.976 INFO [stderr] 137 | fn get_url_with_timeout_5(url: &str, mut shbuf: &Arc<Mutex<String>>) -> Result<u16, MyAppError> {
Dec 01 05:58:56.976 INFO [stderr]     |                                      ----^^^^^
Dec 01 05:58:56.977 INFO [stderr]     |                                      |
Dec 01 05:58:56.977 INFO [stderr]     |                                      help: remove this `mut`
Dec 01 05:58:56.977 INFO [stderr] 
Dec 01 05:58:57.546 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Dec 01 05:58:57.551 INFO [stderr] su: No module specific data is present
Dec 01 05:58:58.457 INFO running `"docker" "inspect" "3acd29f28e661750984e2d14fecb7e430f30762e084b5e71426221c9a5901687"`
Dec 01 05:58:58.695 INFO running `"docker" "rm" "-f" "3acd29f28e661750984e2d14fecb7e430f30762e084b5e71426221c9a5901687"`
Dec 01 05:58:59.030 INFO [stdout] 3acd29f28e661750984e2d14fecb7e430f30762e084b5e71426221c9a5901687
Dec 01 05:58:59.033 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 05:58:59.595 INFO [stdout] 7989738b30fcc30ebc71318e3d113d1903ad91aa49fb63be13d286a1edb6f6cc
Dec 01 05:58:59.601 INFO running `"docker" "start" "-a" "7989738b30fcc30ebc71318e3d113d1903ad91aa49fb63be13d286a1edb6f6cc"`
Dec 01 05:59:00.972 INFO [stderr] usermod: no changes
Dec 01 05:59:01.114 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
Dec 01 05:59:01.118 INFO [stderr]      Running /target/debug/deps/thread_read_to_string-d737e76bd814ab73
Dec 01 05:59:01.130 INFO [stdout] 
Dec 01 05:59:01.130 INFO [stdout] running 0 tests
Dec 01 05:59:01.130 INFO [stdout] 
Dec 01 05:59:01.130 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 05:59:01.130 INFO [stdout] 
Dec 01 05:59:01.130 INFO [stderr] su: No module specific data is present
Dec 01 05:59:02.121 INFO running `"docker" "inspect" "7989738b30fcc30ebc71318e3d113d1903ad91aa49fb63be13d286a1edb6f6cc"`
Dec 01 05:59:02.307 INFO running `"docker" "rm" "-f" "7989738b30fcc30ebc71318e3d113d1903ad91aa49fb63be13d286a1edb6f6cc"`
Dec 01 05:59:02.442 INFO [stdout] 7989738b30fcc30ebc71318e3d113d1903ad91aa49fb63be13d286a1edb6f6cc
