Sep 01 17:48:49.723 INFO checking DLeyland/Hello-Rust against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 01 17:48:49.723 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 17:48:49.723 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 17:48:49.933 INFO blam! b8fedbf736dd6c5ed1041ea416dce02178a919b59445448eb8aff89be0cceff5
Sep 01 17:48:49.935 INFO running `"docker" "start" "-a" "b8fedbf736dd6c5ed1041ea416dce02178a919b59445448eb8aff89be0cceff5"`
Sep 01 17:48:50.765 INFO kablam!     Checking hello_world v0.0.1 (file:///source)
Sep 01 17:48:51.195 INFO kablam! warning: unused variable: `i`
Sep 01 17:48:51.195 INFO kablam!  --> src/main.rs:4:9
Sep 01 17:48:51.195 INFO kablam!   |
Sep 01 17:48:51.196 INFO kablam! 4 |     for i in 0..10{
Sep 01 17:48:51.196 INFO kablam!   |         ^ help: consider using `_i` instead
Sep 01 17:48:51.196 INFO kablam!   |
Sep 01 17:48:51.196 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 01 17:48:51.196 INFO kablam! 
Sep 01 17:48:51.197 INFO kablam! warning: unused variable: `hello_world1`
Sep 01 17:48:51.197 INFO kablam!   --> src/main.rs:24:6
Sep 01 17:48:51.197 INFO kablam!    |
Sep 01 17:48:51.197 INFO kablam! 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Sep 01 17:48:51.197 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Sep 01 17:48:51.197 INFO kablam! 
Sep 01 17:48:51.197 INFO kablam! warning: unused variable: `hello_world2`
Sep 01 17:48:51.197 INFO kablam!   --> src/main.rs:28:6
Sep 01 17:48:51.197 INFO kablam!    |
Sep 01 17:48:51.197 INFO kablam! 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Sep 01 17:48:51.197 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Sep 01 17:48:51.197 INFO kablam! 
Sep 01 17:48:51.210 INFO kablam! warning: unused variable: `i`
Sep 01 17:48:51.211 INFO kablam!  --> src/main.rs:4:9
Sep 01 17:48:51.211 INFO kablam!   |
Sep 01 17:48:51.211 INFO kablam! 4 |     for i in 0..10{
Sep 01 17:48:51.211 INFO kablam!   |         ^ help: consider using `_i` instead
Sep 01 17:48:51.211 INFO kablam!   |
Sep 01 17:48:51.211 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 01 17:48:51.211 INFO kablam! 
Sep 01 17:48:51.211 INFO kablam! warning: unused variable: `hello_world1`
Sep 01 17:48:51.211 INFO kablam!   --> src/main.rs:24:6
Sep 01 17:48:51.211 INFO kablam!    |
Sep 01 17:48:51.211 INFO kablam! 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Sep 01 17:48:51.211 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Sep 01 17:48:51.211 INFO kablam! 
Sep 01 17:48:51.211 INFO kablam! warning: unused variable: `hello_world2`
Sep 01 17:48:51.211 INFO kablam!   --> src/main.rs:28:6
Sep 01 17:48:51.211 INFO kablam!    |
Sep 01 17:48:51.211 INFO kablam! 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Sep 01 17:48:51.212 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Sep 01 17:48:51.212 INFO kablam! 
Sep 01 17:48:51.214 INFO kablam! warning: function is never used: `for_loop`
Sep 01 17:48:51.214 INFO kablam!  --> src/main.rs:1:1
Sep 01 17:48:51.214 INFO kablam!   |
Sep 01 17:48:51.214 INFO kablam! 1 | fn for_loop(){
Sep 01 17:48:51.214 INFO kablam!   | ^^^^^^^^^^^^^
Sep 01 17:48:51.214 INFO kablam!   |
Sep 01 17:48:51.214 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 01 17:48:51.214 INFO kablam! 
Sep 01 17:48:51.214 INFO kablam! warning: function is never used: `while_loop_with_vec`
Sep 01 17:48:51.214 INFO kablam!   --> src/main.rs:10:1
Sep 01 17:48:51.214 INFO kablam!    |
Sep 01 17:48:51.214 INFO kablam! 10 | fn while_loop_with_vec(){
Sep 01 17:48:51.214 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 17:48:51.214 INFO kablam! 
Sep 01 17:48:51.215 INFO kablam! warning: function is never used: `string_example`
Sep 01 17:48:51.215 INFO kablam!   --> src/main.rs:20:1
Sep 01 17:48:51.215 INFO kablam!    |
Sep 01 17:48:51.215 INFO kablam! 20 | fn string_example(){
Sep 01 17:48:51.215 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^
Sep 01 17:48:51.215 INFO kablam! 
Sep 01 17:48:51.215 INFO kablam! warning: struct is never constructed: `Circle`
Sep 01 17:48:51.215 INFO kablam!   --> src/main.rs:31:1
Sep 01 17:48:51.215 INFO kablam!    |
Sep 01 17:48:51.215 INFO kablam! 31 | struct Circle{
Sep 01 17:48:51.215 INFO kablam!    | ^^^^^^^^^^^^^
Sep 01 17:48:51.215 INFO kablam! 
Sep 01 17:48:51.215 INFO kablam! warning: method is never used: `area`
Sep 01 17:48:51.215 INFO kablam!   --> src/main.rs:38:2
Sep 01 17:48:51.215 INFO kablam!    |
Sep 01 17:48:51.215 INFO kablam! 38 |     fn area(&self)->f64{
Sep 01 17:48:51.215 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Sep 01 17:48:51.215 INFO kablam! 
Sep 01 17:48:51.215 INFO kablam! warning: function is never used: `circle_area`
Sep 01 17:48:51.215 INFO kablam!   --> src/main.rs:43:1
Sep 01 17:48:51.215 INFO kablam!    |
Sep 01 17:48:51.215 INFO kablam! 43 | fn circle_area(){ 
Sep 01 17:48:51.215 INFO kablam!    | ^^^^^^^^^^^^^^^^
Sep 01 17:48:51.216 INFO kablam! 
Sep 01 17:48:51.226 INFO kablam! warning: function is never used: `for_loop`
Sep 01 17:48:51.226 INFO kablam!  --> src/main.rs:1:1
Sep 01 17:48:51.226 INFO kablam!   |
Sep 01 17:48:51.226 INFO kablam! 1 | fn for_loop(){
Sep 01 17:48:51.226 INFO kablam!   | ^^^^^^^^^^^^^
Sep 01 17:48:51.226 INFO kablam!   |
Sep 01 17:48:51.226 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 01 17:48:51.226 INFO kablam! 
Sep 01 17:48:51.226 INFO kablam! warning: function is never used: `while_loop_with_vec`
Sep 01 17:48:51.227 INFO kablam!   --> src/main.rs:10:1
Sep 01 17:48:51.227 INFO kablam!    |
Sep 01 17:48:51.227 INFO kablam! 10 | fn while_loop_with_vec(){
Sep 01 17:48:51.227 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 17:48:51.227 INFO kablam! 
Sep 01 17:48:51.227 INFO kablam! warning: function is never used: `string_example`
Sep 01 17:48:51.227 INFO kablam!   --> src/main.rs:20:1
Sep 01 17:48:51.227 INFO kablam!    |
Sep 01 17:48:51.227 INFO kablam! 20 | fn string_example(){
Sep 01 17:48:51.227 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^
Sep 01 17:48:51.227 INFO kablam! 
Sep 01 17:48:51.227 INFO kablam! warning: struct is never constructed: `Circle`
Sep 01 17:48:51.227 INFO kablam!   --> src/main.rs:31:1
Sep 01 17:48:51.227 INFO kablam!    |
Sep 01 17:48:51.227 INFO kablam! 31 | struct Circle{
Sep 01 17:48:51.227 INFO kablam!    | ^^^^^^^^^^^^^
Sep 01 17:48:51.227 INFO kablam! 
Sep 01 17:48:51.227 INFO kablam! warning: method is never used: `area`
Sep 01 17:48:51.227 INFO kablam!   --> src/main.rs:38:2
Sep 01 17:48:51.228 INFO kablam!    |
Sep 01 17:48:51.228 INFO kablam! 38 |     fn area(&self)->f64{
Sep 01 17:48:51.228 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Sep 01 17:48:51.228 INFO kablam! 
Sep 01 17:48:51.228 INFO kablam! warning: function is never used: `circle_area`
Sep 01 17:48:51.228 INFO kablam!   --> src/main.rs:43:1
Sep 01 17:48:51.228 INFO kablam!    |
Sep 01 17:48:51.228 INFO kablam! 43 | fn circle_area(){ 
Sep 01 17:48:51.228 INFO kablam!    | ^^^^^^^^^^^^^^^^
Sep 01 17:48:51.228 INFO kablam! 
Sep 01 17:48:51.239 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Sep 01 17:48:51.242 INFO kablam! su: No module specific data is present
Sep 01 17:48:51.694 INFO running `"docker" "rm" "-f" "b8fedbf736dd6c5ed1041ea416dce02178a919b59445448eb8aff89be0cceff5"`
Sep 01 17:48:51.853 INFO blam! b8fedbf736dd6c5ed1041ea416dce02178a919b59445448eb8aff89be0cceff5