Sep 10 05:36:11.198 INFO checking DLeyland/Hello-Rust against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 05:36:11.199 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 05:36:11.199 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 05:36:11.399 INFO blam! c5cef021f8b5f31d9fd298be63627d7fff44cb7d9f20128bab21df218ce2ea6d
Sep 10 05:36:11.401 INFO running `"docker" "start" "-a" "c5cef021f8b5f31d9fd298be63627d7fff44cb7d9f20128bab21df218ce2ea6d"`
Sep 10 05:36:13.662 INFO kablam! usermod: no changes
Sep 10 05:36:13.722 INFO kablam!     Checking hello_world v0.0.1 (file:///source)
Sep 10 05:36:14.166 INFO kablam! warning: unused variable: `i`
Sep 10 05:36:14.166 INFO kablam!  --> src/main.rs:4:9
Sep 10 05:36:14.166 INFO kablam!   |
Sep 10 05:36:14.166 INFO kablam! 4 |     for i in 0..10{
Sep 10 05:36:14.166 INFO kablam!   |         ^ help: consider using `_i` instead
Sep 10 05:36:14.166 INFO kablam!   |
Sep 10 05:36:14.166 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 10 05:36:14.166 INFO kablam! 
Sep 10 05:36:14.166 INFO kablam! warning: unused variable: `hello_world1`
Sep 10 05:36:14.166 INFO kablam!   --> src/main.rs:24:6
Sep 10 05:36:14.166 INFO kablam!    |
Sep 10 05:36:14.166 INFO kablam! 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Sep 10 05:36:14.166 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Sep 10 05:36:14.166 INFO kablam! 
Sep 10 05:36:14.166 INFO kablam! warning: unused variable: `hello_world2`
Sep 10 05:36:14.166 INFO kablam!   --> src/main.rs:28:6
Sep 10 05:36:14.166 INFO kablam!    |
Sep 10 05:36:14.166 INFO kablam! 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Sep 10 05:36:14.166 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Sep 10 05:36:14.166 INFO kablam! 
Sep 10 05:36:14.173 INFO kablam! warning: function is never used: `for_loop`
Sep 10 05:36:14.173 INFO kablam!  --> src/main.rs:1:1
Sep 10 05:36:14.173 INFO kablam!   |
Sep 10 05:36:14.173 INFO kablam! 1 | fn for_loop(){
Sep 10 05:36:14.173 INFO kablam!   | ^^^^^^^^^^^^^
Sep 10 05:36:14.173 INFO kablam!   |
Sep 10 05:36:14.173 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 05:36:14.173 INFO kablam! 
Sep 10 05:36:14.173 INFO kablam! warning: function is never used: `while_loop_with_vec`
Sep 10 05:36:14.173 INFO kablam!   --> src/main.rs:10:1
Sep 10 05:36:14.173 INFO kablam!    |
Sep 10 05:36:14.173 INFO kablam! 10 | fn while_loop_with_vec(){
Sep 10 05:36:14.173 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:36:14.173 INFO kablam! 
Sep 10 05:36:14.173 INFO kablam! warning: function is never used: `string_example`
Sep 10 05:36:14.173 INFO kablam!   --> src/main.rs:20:1
Sep 10 05:36:14.173 INFO kablam!    |
Sep 10 05:36:14.173 INFO kablam! 20 | fn string_example(){
Sep 10 05:36:14.173 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^
Sep 10 05:36:14.173 INFO kablam! 
Sep 10 05:36:14.173 INFO kablam! warning: struct is never constructed: `Circle`
Sep 10 05:36:14.173 INFO kablam!   --> src/main.rs:31:1
Sep 10 05:36:14.173 INFO kablam!    |
Sep 10 05:36:14.173 INFO kablam! 31 | struct Circle{
Sep 10 05:36:14.173 INFO kablam!    | ^^^^^^^^^^^^^
Sep 10 05:36:14.173 INFO kablam! 
Sep 10 05:36:14.173 INFO kablam! warning: method is never used: `area`
Sep 10 05:36:14.173 INFO kablam!   --> src/main.rs:38:2
Sep 10 05:36:14.173 INFO kablam!    |
Sep 10 05:36:14.173 INFO kablam! 38 |     fn area(&self)->f64{
Sep 10 05:36:14.173 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Sep 10 05:36:14.173 INFO kablam! 
Sep 10 05:36:14.174 INFO kablam! warning: function is never used: `circle_area`
Sep 10 05:36:14.174 INFO kablam!   --> src/main.rs:43:1
Sep 10 05:36:14.174 INFO kablam!    |
Sep 10 05:36:14.174 INFO kablam! 43 | fn circle_area(){ 
Sep 10 05:36:14.174 INFO kablam!    | ^^^^^^^^^^^^^^^^
Sep 10 05:36:14.174 INFO kablam! 
Sep 10 05:36:14.195 INFO kablam! warning: unused variable: `i`
Sep 10 05:36:14.195 INFO kablam!  --> src/main.rs:4:9
Sep 10 05:36:14.195 INFO kablam!   |
Sep 10 05:36:14.195 INFO kablam! 4 |     for i in 0..10{
Sep 10 05:36:14.195 INFO kablam!   |         ^ help: consider using `_i` instead
Sep 10 05:36:14.195 INFO kablam!   |
Sep 10 05:36:14.195 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 10 05:36:14.195 INFO kablam! 
Sep 10 05:36:14.195 INFO kablam! warning: unused variable: `hello_world1`
Sep 10 05:36:14.195 INFO kablam!   --> src/main.rs:24:6
Sep 10 05:36:14.195 INFO kablam!    |
Sep 10 05:36:14.195 INFO kablam! 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Sep 10 05:36:14.195 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Sep 10 05:36:14.195 INFO kablam! 
Sep 10 05:36:14.195 INFO kablam! warning: unused variable: `hello_world2`
Sep 10 05:36:14.195 INFO kablam!   --> src/main.rs:28:6
Sep 10 05:36:14.195 INFO kablam!    |
Sep 10 05:36:14.195 INFO kablam! 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Sep 10 05:36:14.195 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Sep 10 05:36:14.195 INFO kablam! 
Sep 10 05:36:14.204 INFO kablam! warning: function is never used: `for_loop`
Sep 10 05:36:14.205 INFO kablam!  --> src/main.rs:1:1
Sep 10 05:36:14.205 INFO kablam!   |
Sep 10 05:36:14.205 INFO kablam! 1 | fn for_loop(){
Sep 10 05:36:14.205 INFO kablam!   | ^^^^^^^^^^^^^
Sep 10 05:36:14.205 INFO kablam!   |
Sep 10 05:36:14.205 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 05:36:14.205 INFO kablam! 
Sep 10 05:36:14.205 INFO kablam! warning: function is never used: `while_loop_with_vec`
Sep 10 05:36:14.205 INFO kablam!   --> src/main.rs:10:1
Sep 10 05:36:14.205 INFO kablam!    |
Sep 10 05:36:14.205 INFO kablam! 10 | fn while_loop_with_vec(){
Sep 10 05:36:14.205 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 05:36:14.205 INFO kablam! 
Sep 10 05:36:14.205 INFO kablam! warning: function is never used: `string_example`
Sep 10 05:36:14.205 INFO kablam!   --> src/main.rs:20:1
Sep 10 05:36:14.205 INFO kablam!    |
Sep 10 05:36:14.205 INFO kablam! 20 | fn string_example(){
Sep 10 05:36:14.205 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^
Sep 10 05:36:14.211 INFO kablam! 
Sep 10 05:36:14.211 INFO kablam! warning: struct is never constructed: `Circle`
Sep 10 05:36:14.211 INFO kablam!   --> src/main.rs:31:1
Sep 10 05:36:14.211 INFO kablam!    |
Sep 10 05:36:14.211 INFO kablam! 31 | struct Circle{
Sep 10 05:36:14.211 INFO kablam!    | ^^^^^^^^^^^^^
Sep 10 05:36:14.211 INFO kablam! 
Sep 10 05:36:14.211 INFO kablam! warning: method is never used: `area`
Sep 10 05:36:14.211 INFO kablam!   --> src/main.rs:38:2
Sep 10 05:36:14.211 INFO kablam!    |
Sep 10 05:36:14.211 INFO kablam! 38 |     fn area(&self)->f64{
Sep 10 05:36:14.211 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Sep 10 05:36:14.211 INFO kablam! 
Sep 10 05:36:14.211 INFO kablam! warning: function is never used: `circle_area`
Sep 10 05:36:14.211 INFO kablam!   --> src/main.rs:43:1
Sep 10 05:36:14.211 INFO kablam!    |
Sep 10 05:36:14.211 INFO kablam! 43 | fn circle_area(){ 
Sep 10 05:36:14.211 INFO kablam!    | ^^^^^^^^^^^^^^^^
Sep 10 05:36:14.211 INFO kablam! 
Sep 10 05:36:14.254 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Sep 10 05:36:14.254 INFO kablam! su: No module specific data is present
Sep 10 05:36:15.945 INFO running `"docker" "rm" "-f" "c5cef021f8b5f31d9fd298be63627d7fff44cb7d9f20128bab21df218ce2ea6d"`
Sep 10 05:36:16.049 INFO blam! c5cef021f8b5f31d9fd298be63627d7fff44cb7d9f20128bab21df218ce2ea6d