Sep 20 23:58:42.560 INFO checking DLeyland/Hello-Rust against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 20 23:58:42.560 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 20 23:58:42.560 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-1/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 23:58:42.887 INFO blam! 3ec0de61812fe4dc8020c504627f3b75f3ebbce637cc590bee201de9c0729f8c
Sep 20 23:58:42.889 INFO running `"docker" "start" "-a" "3ec0de61812fe4dc8020c504627f3b75f3ebbce637cc590bee201de9c0729f8c"`
Sep 20 23:58:44.278 INFO kablam! usermod: no changes
Sep 20 23:58:44.321 INFO kablam!     Checking hello_world v0.0.1 (/source)
Sep 20 23:58:44.818 INFO kablam! warning: unused variable: `i`
Sep 20 23:58:44.818 INFO kablam!  --> src/main.rs:4:9
Sep 20 23:58:44.818 INFO kablam!   |
Sep 20 23:58:44.818 INFO kablam! 4 |     for i in 0..10{
Sep 20 23:58:44.818 INFO kablam!   |         ^ help: consider using `_i` instead
Sep 20 23:58:44.818 INFO kablam!   |
Sep 20 23:58:44.818 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 20 23:58:44.818 INFO kablam! 
Sep 20 23:58:44.819 INFO kablam! warning: unused variable: `hello_world1`
Sep 20 23:58:44.819 INFO kablam!   --> src/main.rs:24:6
Sep 20 23:58:44.819 INFO kablam!    |
Sep 20 23:58:44.819 INFO kablam! 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Sep 20 23:58:44.819 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Sep 20 23:58:44.819 INFO kablam! 
Sep 20 23:58:44.819 INFO kablam! warning: unused variable: `hello_world2`
Sep 20 23:58:44.819 INFO kablam!   --> src/main.rs:28:6
Sep 20 23:58:44.819 INFO kablam!    |
Sep 20 23:58:44.819 INFO kablam! 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Sep 20 23:58:44.819 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Sep 20 23:58:44.819 INFO kablam! 
Sep 20 23:58:44.823 INFO kablam! warning: function is never used: `for_loop`
Sep 20 23:58:44.823 INFO kablam!  --> src/main.rs:1:1
Sep 20 23:58:44.823 INFO kablam!   |
Sep 20 23:58:44.823 INFO kablam! 1 | fn for_loop(){
Sep 20 23:58:44.823 INFO kablam!   | ^^^^^^^^^^^^^
Sep 20 23:58:44.823 INFO kablam!   |
Sep 20 23:58:44.823 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 20 23:58:44.823 INFO kablam! 
Sep 20 23:58:44.823 INFO kablam! warning: function is never used: `while_loop_with_vec`
Sep 20 23:58:44.823 INFO kablam!   --> src/main.rs:10:1
Sep 20 23:58:44.823 INFO kablam!    |
Sep 20 23:58:44.823 INFO kablam! 10 | fn while_loop_with_vec(){
Sep 20 23:58:44.823 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 23:58:44.823 INFO kablam! 
Sep 20 23:58:44.823 INFO kablam! warning: function is never used: `string_example`
Sep 20 23:58:44.823 INFO kablam!   --> src/main.rs:20:1
Sep 20 23:58:44.823 INFO kablam!    |
Sep 20 23:58:44.823 INFO kablam! 20 | fn string_example(){
Sep 20 23:58:44.823 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^
Sep 20 23:58:44.823 INFO kablam! 
Sep 20 23:58:44.824 INFO kablam! warning: struct is never constructed: `Circle`
Sep 20 23:58:44.824 INFO kablam!   --> src/main.rs:31:1
Sep 20 23:58:44.824 INFO kablam!    |
Sep 20 23:58:44.824 INFO kablam! 31 | struct Circle{
Sep 20 23:58:44.824 INFO kablam!    | ^^^^^^^^^^^^^
Sep 20 23:58:44.824 INFO kablam! 
Sep 20 23:58:44.824 INFO kablam! warning: method is never used: `area`
Sep 20 23:58:44.824 INFO kablam!   --> src/main.rs:38:2
Sep 20 23:58:44.824 INFO kablam!    |
Sep 20 23:58:44.824 INFO kablam! 38 |     fn area(&self)->f64{
Sep 20 23:58:44.824 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Sep 20 23:58:44.824 INFO kablam! 
Sep 20 23:58:44.824 INFO kablam! warning: function is never used: `circle_area`
Sep 20 23:58:44.824 INFO kablam!   --> src/main.rs:43:1
Sep 20 23:58:44.824 INFO kablam!    |
Sep 20 23:58:44.824 INFO kablam! 43 | fn circle_area(){ 
Sep 20 23:58:44.824 INFO kablam!    | ^^^^^^^^^^^^^^^^
Sep 20 23:58:44.824 INFO kablam! 
Sep 20 23:58:44.853 INFO kablam! warning: unused variable: `i`
Sep 20 23:58:44.854 INFO kablam!  --> src/main.rs:4:9
Sep 20 23:58:44.854 INFO kablam!   |
Sep 20 23:58:44.854 INFO kablam! 4 |     for i in 0..10{
Sep 20 23:58:44.854 INFO kablam!   |         ^ help: consider using `_i` instead
Sep 20 23:58:44.854 INFO kablam!   |
Sep 20 23:58:44.854 INFO kablam!   = note: #[warn(unused_variables)] on by default
Sep 20 23:58:44.854 INFO kablam! 
Sep 20 23:58:44.854 INFO kablam! warning: unused variable: `hello_world1`
Sep 20 23:58:44.854 INFO kablam!   --> src/main.rs:24:6
Sep 20 23:58:44.854 INFO kablam!    |
Sep 20 23:58:44.854 INFO kablam! 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Sep 20 23:58:44.854 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Sep 20 23:58:44.854 INFO kablam! 
Sep 20 23:58:44.854 INFO kablam! warning: unused variable: `hello_world2`
Sep 20 23:58:44.854 INFO kablam!   --> src/main.rs:28:6
Sep 20 23:58:44.854 INFO kablam!    |
Sep 20 23:58:44.854 INFO kablam! 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Sep 20 23:58:44.854 INFO kablam!    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Sep 20 23:58:44.854 INFO kablam! 
Sep 20 23:58:44.861 INFO kablam! warning: function is never used: `for_loop`
Sep 20 23:58:44.861 INFO kablam!  --> src/main.rs:1:1
Sep 20 23:58:44.861 INFO kablam!   |
Sep 20 23:58:44.861 INFO kablam! 1 | fn for_loop(){
Sep 20 23:58:44.861 INFO kablam!   | ^^^^^^^^^^^^^
Sep 20 23:58:44.861 INFO kablam!   |
Sep 20 23:58:44.861 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 20 23:58:44.861 INFO kablam! 
Sep 20 23:58:44.861 INFO kablam! warning: function is never used: `while_loop_with_vec`
Sep 20 23:58:44.861 INFO kablam!   --> src/main.rs:10:1
Sep 20 23:58:44.861 INFO kablam!    |
Sep 20 23:58:44.861 INFO kablam! 10 | fn while_loop_with_vec(){
Sep 20 23:58:44.861 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 23:58:44.861 INFO kablam! 
Sep 20 23:58:44.861 INFO kablam! warning: function is never used: `string_example`
Sep 20 23:58:44.861 INFO kablam!   --> src/main.rs:20:1
Sep 20 23:58:44.861 INFO kablam!    |
Sep 20 23:58:44.861 INFO kablam! 20 | fn string_example(){
Sep 20 23:58:44.861 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^
Sep 20 23:58:44.861 INFO kablam! 
Sep 20 23:58:44.861 INFO kablam! warning: struct is never constructed: `Circle`
Sep 20 23:58:44.861 INFO kablam!   --> src/main.rs:31:1
Sep 20 23:58:44.861 INFO kablam!    |
Sep 20 23:58:44.861 INFO kablam! 31 | struct Circle{
Sep 20 23:58:44.861 INFO kablam!    | ^^^^^^^^^^^^^
Sep 20 23:58:44.861 INFO kablam! 
Sep 20 23:58:44.861 INFO kablam! warning: method is never used: `area`
Sep 20 23:58:44.861 INFO kablam!   --> src/main.rs:38:2
Sep 20 23:58:44.861 INFO kablam!    |
Sep 20 23:58:44.861 INFO kablam! 38 |     fn area(&self)->f64{
Sep 20 23:58:44.861 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Sep 20 23:58:44.861 INFO kablam! 
Sep 20 23:58:44.870 INFO kablam! warning: function is never used: `circle_area`
Sep 20 23:58:44.870 INFO kablam!   --> src/main.rs:43:1
Sep 20 23:58:44.870 INFO kablam!    |
Sep 20 23:58:44.870 INFO kablam! 43 | fn circle_area(){ 
Sep 20 23:58:44.870 INFO kablam!    | ^^^^^^^^^^^^^^^^
Sep 20 23:58:44.870 INFO kablam! 
Sep 20 23:58:44.895 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Sep 20 23:58:44.902 INFO kablam! su: No module specific data is present
Sep 20 23:58:46.484 INFO running `"docker" "rm" "-f" "3ec0de61812fe4dc8020c504627f3b75f3ebbce637cc590bee201de9c0729f8c"`
Sep 20 23:58:46.590 INFO blam! 3ec0de61812fe4dc8020c504627f3b75f3ebbce637cc590bee201de9c0729f8c