Nov 17 16:04:02.743 INFO testing DLeyland/Hello-Rust against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 16:04:02.745 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 16:04:03.266 INFO [stdout] d432fe2b99c392ac48ca85c78291bae3f8c15ac8b16099b504ca09c62879d490
Nov 17 16:04:03.275 INFO running `"docker" "start" "-a" "d432fe2b99c392ac48ca85c78291bae3f8c15ac8b16099b504ca09c62879d490"`
Nov 17 16:04:04.246 INFO [stderr] usermod: no changes
Nov 17 16:04:04.315 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Nov 17 16:04:04.770 INFO [stderr] warning: unused variable: `i`
Nov 17 16:04:04.770 INFO [stderr]  --> src/main.rs:4:9
Nov 17 16:04:04.770 INFO [stderr]   |
Nov 17 16:04:04.770 INFO [stderr] 4 |     for i in 0..10{
Nov 17 16:04:04.770 INFO [stderr]   |         ^ help: consider using `_i` instead
Nov 17 16:04:04.770 INFO [stderr]   |
Nov 17 16:04:04.770 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 16:04:04.770 INFO [stderr] 
Nov 17 16:04:04.770 INFO [stderr] warning: unused variable: `hello_world1`
Nov 17 16:04:04.770 INFO [stderr]   --> src/main.rs:24:6
Nov 17 16:04:04.770 INFO [stderr]    |
Nov 17 16:04:04.770 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Nov 17 16:04:04.770 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Nov 17 16:04:04.770 INFO [stderr] 
Nov 17 16:04:04.770 INFO [stderr] warning: unused variable: `hello_world2`
Nov 17 16:04:04.770 INFO [stderr]   --> src/main.rs:28:6
Nov 17 16:04:04.770 INFO [stderr]    |
Nov 17 16:04:04.770 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Nov 17 16:04:04.770 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Nov 17 16:04:04.770 INFO [stderr] 
Nov 17 16:04:04.783 INFO [stderr] warning: function is never used: `for_loop`
Nov 17 16:04:04.784 INFO [stderr]  --> src/main.rs:1:1
Nov 17 16:04:04.784 INFO [stderr]   |
Nov 17 16:04:04.784 INFO [stderr] 1 | fn for_loop(){
Nov 17 16:04:04.784 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 17 16:04:04.785 INFO [stderr]   |
Nov 17 16:04:04.785 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 16:04:04.785 INFO [stderr] 
Nov 17 16:04:04.786 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Nov 17 16:04:04.786 INFO [stderr]   --> src/main.rs:10:1
Nov 17 16:04:04.786 INFO [stderr]    |
Nov 17 16:04:04.786 INFO [stderr] 10 | fn while_loop_with_vec(){
Nov 17 16:04:04.787 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:04:04.787 INFO [stderr] 
Nov 17 16:04:04.787 INFO [stderr] warning: function is never used: `string_example`
Nov 17 16:04:04.787 INFO [stderr]   --> src/main.rs:20:1
Nov 17 16:04:04.788 INFO [stderr]    |
Nov 17 16:04:04.788 INFO [stderr] 20 | fn string_example(){
Nov 17 16:04:04.788 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Nov 17 16:04:04.788 INFO [stderr] 
Nov 17 16:04:04.789 INFO [stderr] warning: struct is never constructed: `Circle`
Nov 17 16:04:04.789 INFO [stderr]   --> src/main.rs:31:1
Nov 17 16:04:04.789 INFO [stderr]    |
Nov 17 16:04:04.790 INFO [stderr] 31 | struct Circle{
Nov 17 16:04:04.790 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 17 16:04:04.790 INFO [stderr] 
Nov 17 16:04:04.790 INFO [stderr] warning: method is never used: `area`
Nov 17 16:04:04.791 INFO [stderr]   --> src/main.rs:38:2
Nov 17 16:04:04.791 INFO [stderr]    |
Nov 17 16:04:04.791 INFO [stderr] 38 |     fn area(&self)->f64{
Nov 17 16:04:04.792 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 17 16:04:04.792 INFO [stderr] 
Nov 17 16:04:04.792 INFO [stderr] warning: function is never used: `circle_area`
Nov 17 16:04:04.792 INFO [stderr]   --> src/main.rs:43:1
Nov 17 16:04:04.793 INFO [stderr]    |
Nov 17 16:04:04.793 INFO [stderr] 43 | fn circle_area(){ 
Nov 17 16:04:04.793 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Nov 17 16:04:04.793 INFO [stderr] 
Nov 17 16:04:05.034 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Nov 17 16:04:05.039 INFO [stderr] su: No module specific data is present
Nov 17 16:04:05.639 INFO running `"docker" "inspect" "d432fe2b99c392ac48ca85c78291bae3f8c15ac8b16099b504ca09c62879d490"`
Nov 17 16:04:05.917 INFO running `"docker" "rm" "-f" "d432fe2b99c392ac48ca85c78291bae3f8c15ac8b16099b504ca09c62879d490"`
Nov 17 16:04:06.240 INFO [stdout] d432fe2b99c392ac48ca85c78291bae3f8c15ac8b16099b504ca09c62879d490
Nov 17 16:04:06.248 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 16:04:06.692 INFO [stdout] de7f47ca2f9c1bc6ff72161ab498e799496e0fd062027585d364fdfc47d77795
Nov 17 16:04:06.695 INFO running `"docker" "start" "-a" "de7f47ca2f9c1bc6ff72161ab498e799496e0fd062027585d364fdfc47d77795"`
Nov 17 16:04:07.821 INFO [stderr] usermod: no changes
Nov 17 16:04:07.867 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Nov 17 16:04:08.359 INFO [stderr] warning: unused variable: `i`
Nov 17 16:04:08.359 INFO [stderr]  --> src/main.rs:4:9
Nov 17 16:04:08.359 INFO [stderr]   |
Nov 17 16:04:08.359 INFO [stderr] 4 |     for i in 0..10{
Nov 17 16:04:08.359 INFO [stderr]   |         ^ help: consider using `_i` instead
Nov 17 16:04:08.359 INFO [stderr]   |
Nov 17 16:04:08.359 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 16:04:08.359 INFO [stderr] 
Nov 17 16:04:08.359 INFO [stderr] warning: unused variable: `hello_world1`
Nov 17 16:04:08.359 INFO [stderr]   --> src/main.rs:24:6
Nov 17 16:04:08.359 INFO [stderr]    |
Nov 17 16:04:08.359 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Nov 17 16:04:08.359 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Nov 17 16:04:08.359 INFO [stderr] 
Nov 17 16:04:08.359 INFO [stderr] warning: unused variable: `hello_world2`
Nov 17 16:04:08.359 INFO [stderr]   --> src/main.rs:28:6
Nov 17 16:04:08.359 INFO [stderr]    |
Nov 17 16:04:08.359 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Nov 17 16:04:08.359 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Nov 17 16:04:08.359 INFO [stderr] 
Nov 17 16:04:08.362 INFO [stderr] warning: function is never used: `for_loop`
Nov 17 16:04:08.362 INFO [stderr]  --> src/main.rs:1:1
Nov 17 16:04:08.362 INFO [stderr]   |
Nov 17 16:04:08.362 INFO [stderr] 1 | fn for_loop(){
Nov 17 16:04:08.362 INFO [stderr]   | ^^^^^^^^^^^^^
Nov 17 16:04:08.362 INFO [stderr]   |
Nov 17 16:04:08.362 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 16:04:08.362 INFO [stderr] 
Nov 17 16:04:08.362 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Nov 17 16:04:08.362 INFO [stderr]   --> src/main.rs:10:1
Nov 17 16:04:08.362 INFO [stderr]    |
Nov 17 16:04:08.362 INFO [stderr] 10 | fn while_loop_with_vec(){
Nov 17 16:04:08.362 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 16:04:08.362 INFO [stderr] 
Nov 17 16:04:08.362 INFO [stderr] warning: function is never used: `string_example`
Nov 17 16:04:08.362 INFO [stderr]   --> src/main.rs:20:1
Nov 17 16:04:08.362 INFO [stderr]    |
Nov 17 16:04:08.362 INFO [stderr] 20 | fn string_example(){
Nov 17 16:04:08.362 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Nov 17 16:04:08.366 INFO [stderr] 
Nov 17 16:04:08.366 INFO [stderr] warning: struct is never constructed: `Circle`
Nov 17 16:04:08.366 INFO [stderr]   --> src/main.rs:31:1
Nov 17 16:04:08.366 INFO [stderr]    |
Nov 17 16:04:08.366 INFO [stderr] 31 | struct Circle{
Nov 17 16:04:08.366 INFO [stderr]    | ^^^^^^^^^^^^^
Nov 17 16:04:08.366 INFO [stderr] 
Nov 17 16:04:08.366 INFO [stderr] warning: method is never used: `area`
Nov 17 16:04:08.366 INFO [stderr]   --> src/main.rs:38:2
Nov 17 16:04:08.366 INFO [stderr]    |
Nov 17 16:04:08.366 INFO [stderr] 38 |     fn area(&self)->f64{
Nov 17 16:04:08.366 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 17 16:04:08.366 INFO [stderr] 
Nov 17 16:04:08.366 INFO [stderr] warning: function is never used: `circle_area`
Nov 17 16:04:08.366 INFO [stderr]   --> src/main.rs:43:1
Nov 17 16:04:08.366 INFO [stderr]    |
Nov 17 16:04:08.366 INFO [stderr] 43 | fn circle_area(){ 
Nov 17 16:04:08.366 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Nov 17 16:04:08.366 INFO [stderr] 
Nov 17 16:04:08.667 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Nov 17 16:04:08.675 INFO [stderr] su: No module specific data is present
Nov 17 16:04:08.995 INFO running `"docker" "inspect" "de7f47ca2f9c1bc6ff72161ab498e799496e0fd062027585d364fdfc47d77795"`
Nov 17 16:04:09.157 INFO running `"docker" "rm" "-f" "de7f47ca2f9c1bc6ff72161ab498e799496e0fd062027585d364fdfc47d77795"`
Nov 17 16:04:09.290 INFO [stdout] de7f47ca2f9c1bc6ff72161ab498e799496e0fd062027585d364fdfc47d77795
Nov 17 16:04:09.302 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 16:04:09.551 INFO [stdout] bcd4254e092e0cf7dffa8c223d34ab9b68ad03189e43a7f146ed439f3cb6412a
Nov 17 16:04:09.553 INFO running `"docker" "start" "-a" "bcd4254e092e0cf7dffa8c223d34ab9b68ad03189e43a7f146ed439f3cb6412a"`
Nov 17 16:04:10.187 INFO [stderr] usermod: no changes
Nov 17 16:04:10.223 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Nov 17 16:04:10.223 INFO [stderr]      Running /target/debug/deps/hello_world-2547261f27614e54
Nov 17 16:04:10.224 INFO [stdout] 
Nov 17 16:04:10.224 INFO [stdout] running 0 tests
Nov 17 16:04:10.224 INFO [stdout] 
Nov 17 16:04:10.224 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:04:10.224 INFO [stdout] 
Nov 17 16:04:10.231 INFO [stderr] su: No module specific data is present
Nov 17 16:04:10.637 INFO running `"docker" "inspect" "bcd4254e092e0cf7dffa8c223d34ab9b68ad03189e43a7f146ed439f3cb6412a"`
Nov 17 16:04:10.935 INFO running `"docker" "rm" "-f" "bcd4254e092e0cf7dffa8c223d34ab9b68ad03189e43a7f146ed439f3cb6412a"`
Nov 17 16:04:11.167 INFO [stdout] bcd4254e092e0cf7dffa8c223d34ab9b68ad03189e43a7f146ed439f3cb6412a