Dec 05 02:56:43.551 INFO checking DLeyland/Hello-Rust against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 02:56:43.551 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-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"`
Dec 05 02:56:44.040 INFO [stdout] 40e7cac258472335e7b1c6171c7227010a90062b27eca6e39db1f99e1009a637
Dec 05 02:56:44.042 INFO running `"docker" "start" "-a" "40e7cac258472335e7b1c6171c7227010a90062b27eca6e39db1f99e1009a637"`
Dec 05 02:56:45.517 INFO [stderr] usermod: no changes
Dec 05 02:56:45.627 INFO [stderr]     Checking hello_world v0.0.1 (/source)
Dec 05 02:56:46.240 INFO [stderr] warning: unused variable: `i`
Dec 05 02:56:46.240 INFO [stderr]  --> src/main.rs:4:9
Dec 05 02:56:46.240 INFO [stderr]   |
Dec 05 02:56:46.240 INFO [stderr] 4 |     for i in 0..10{
Dec 05 02:56:46.240 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 05 02:56:46.240 INFO [stderr]   |
Dec 05 02:56:46.240 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 02:56:46.240 INFO [stderr] 
Dec 05 02:56:46.240 INFO [stderr] warning: unused variable: `hello_world1`
Dec 05 02:56:46.240 INFO [stderr]   --> src/main.rs:24:6
Dec 05 02:56:46.240 INFO [stderr]    |
Dec 05 02:56:46.240 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 05 02:56:46.240 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 05 02:56:46.240 INFO [stderr] 
Dec 05 02:56:46.240 INFO [stderr] warning: unused variable: `hello_world2`
Dec 05 02:56:46.240 INFO [stderr]   --> src/main.rs:28:6
Dec 05 02:56:46.240 INFO [stderr]    |
Dec 05 02:56:46.240 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 05 02:56:46.240 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 05 02:56:46.240 INFO [stderr] 
Dec 05 02:56:46.243 INFO [stderr] warning: function is never used: `for_loop`
Dec 05 02:56:46.244 INFO [stderr]  --> src/main.rs:1:1
Dec 05 02:56:46.244 INFO [stderr]   |
Dec 05 02:56:46.244 INFO [stderr] 1 | fn for_loop(){
Dec 05 02:56:46.244 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 05 02:56:46.244 INFO [stderr]   |
Dec 05 02:56:46.244 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:56:46.244 INFO [stderr] 
Dec 05 02:56:46.244 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 05 02:56:46.244 INFO [stderr]   --> src/main.rs:10:1
Dec 05 02:56:46.244 INFO [stderr]    |
Dec 05 02:56:46.244 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 05 02:56:46.244 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:46.244 INFO [stderr] 
Dec 05 02:56:46.244 INFO [stderr] warning: function is never used: `string_example`
Dec 05 02:56:46.244 INFO [stderr]   --> src/main.rs:20:1
Dec 05 02:56:46.244 INFO [stderr]    |
Dec 05 02:56:46.244 INFO [stderr] 20 | fn string_example(){
Dec 05 02:56:46.244 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:46.244 INFO [stderr] 
Dec 05 02:56:46.244 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 05 02:56:46.244 INFO [stderr]   --> src/main.rs:31:1
Dec 05 02:56:46.244 INFO [stderr]    |
Dec 05 02:56:46.244 INFO [stderr] 31 | struct Circle{
Dec 05 02:56:46.244 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 05 02:56:46.244 INFO [stderr] 
Dec 05 02:56:46.244 INFO [stderr] warning: method is never used: `area`
Dec 05 02:56:46.244 INFO [stderr]   --> src/main.rs:38:2
Dec 05 02:56:46.244 INFO [stderr]    |
Dec 05 02:56:46.244 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 05 02:56:46.244 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:46.244 INFO [stderr] 
Dec 05 02:56:46.244 INFO [stderr] warning: function is never used: `circle_area`
Dec 05 02:56:46.244 INFO [stderr]   --> src/main.rs:43:1
Dec 05 02:56:46.244 INFO [stderr]    |
Dec 05 02:56:46.244 INFO [stderr] 43 | fn circle_area(){ 
Dec 05 02:56:46.244 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 05 02:56:46.244 INFO [stderr] 
Dec 05 02:56:46.335 INFO [stderr] warning: unused variable: `i`
Dec 05 02:56:46.335 INFO [stderr]  --> src/main.rs:4:9
Dec 05 02:56:46.335 INFO [stderr]   |
Dec 05 02:56:46.335 INFO [stderr] 4 |     for i in 0..10{
Dec 05 02:56:46.335 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 05 02:56:46.335 INFO [stderr]   |
Dec 05 02:56:46.335 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 02:56:46.335 INFO [stderr] 
Dec 05 02:56:46.335 INFO [stderr] warning: unused variable: `hello_world1`
Dec 05 02:56:46.335 INFO [stderr]   --> src/main.rs:24:6
Dec 05 02:56:46.335 INFO [stderr]    |
Dec 05 02:56:46.335 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 05 02:56:46.335 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 05 02:56:46.335 INFO [stderr] 
Dec 05 02:56:46.335 INFO [stderr] warning: unused variable: `hello_world2`
Dec 05 02:56:46.335 INFO [stderr]   --> src/main.rs:28:6
Dec 05 02:56:46.335 INFO [stderr]    |
Dec 05 02:56:46.335 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 05 02:56:46.335 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 05 02:56:46.335 INFO [stderr] 
Dec 05 02:56:46.347 INFO [stderr] warning: function is never used: `for_loop`
Dec 05 02:56:46.347 INFO [stderr]  --> src/main.rs:1:1
Dec 05 02:56:46.347 INFO [stderr]   |
Dec 05 02:56:46.347 INFO [stderr] 1 | fn for_loop(){
Dec 05 02:56:46.347 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 05 02:56:46.347 INFO [stderr]   |
Dec 05 02:56:46.347 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 02:56:46.347 INFO [stderr] 
Dec 05 02:56:46.347 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 05 02:56:46.347 INFO [stderr]   --> src/main.rs:10:1
Dec 05 02:56:46.347 INFO [stderr]    |
Dec 05 02:56:46.347 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 05 02:56:46.347 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:46.347 INFO [stderr] 
Dec 05 02:56:46.347 INFO [stderr] warning: function is never used: `string_example`
Dec 05 02:56:46.347 INFO [stderr]   --> src/main.rs:20:1
Dec 05 02:56:46.347 INFO [stderr]    |
Dec 05 02:56:46.347 INFO [stderr] 20 | fn string_example(){
Dec 05 02:56:46.347 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:46.347 INFO [stderr] 
Dec 05 02:56:46.347 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 05 02:56:46.347 INFO [stderr]   --> src/main.rs:31:1
Dec 05 02:56:46.347 INFO [stderr]    |
Dec 05 02:56:46.347 INFO [stderr] 31 | struct Circle{
Dec 05 02:56:46.347 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 05 02:56:46.347 INFO [stderr] 
Dec 05 02:56:46.347 INFO [stderr] warning: method is never used: `area`
Dec 05 02:56:46.347 INFO [stderr]   --> src/main.rs:38:2
Dec 05 02:56:46.347 INFO [stderr]    |
Dec 05 02:56:46.347 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 05 02:56:46.347 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 02:56:46.347 INFO [stderr] 
Dec 05 02:56:46.347 INFO [stderr] warning: function is never used: `circle_area`
Dec 05 02:56:46.347 INFO [stderr]   --> src/main.rs:43:1
Dec 05 02:56:46.347 INFO [stderr]    |
Dec 05 02:56:46.347 INFO [stderr] 43 | fn circle_area(){ 
Dec 05 02:56:46.347 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 05 02:56:46.347 INFO [stderr] 
Dec 05 02:56:46.370 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 05 02:56:46.371 INFO [stderr] su: No module specific data is present
Dec 05 02:56:46.907 INFO running `"docker" "inspect" "40e7cac258472335e7b1c6171c7227010a90062b27eca6e39db1f99e1009a637"`
Dec 05 02:56:47.225 INFO running `"docker" "rm" "-f" "40e7cac258472335e7b1c6171c7227010a90062b27eca6e39db1f99e1009a637"`
Dec 05 02:56:47.487 INFO [stdout] 40e7cac258472335e7b1c6171c7227010a90062b27eca6e39db1f99e1009a637