Dec 14 11:09:30.334 INFO testing DLeyland/Hello-Rust against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 11:09:30.334 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 14 11:09:30.832 INFO [stdout] 4b01d67ab5874d972c406c40b3dcfd067c842f5328eae8fb8bcfb031f1feca66
Dec 14 11:09:30.835 INFO running `"docker" "start" "-a" "4b01d67ab5874d972c406c40b3dcfd067c842f5328eae8fb8bcfb031f1feca66"`
Dec 14 11:09:32.200 INFO [stderr] usermod: no changes
Dec 14 11:09:32.271 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 14 11:09:32.814 INFO [stderr] warning: unused variable: `i`
Dec 14 11:09:32.814 INFO [stderr]  --> src/main.rs:4:9
Dec 14 11:09:32.814 INFO [stderr]   |
Dec 14 11:09:32.814 INFO [stderr] 4 |     for i in 0..10{
Dec 14 11:09:32.814 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 14 11:09:32.814 INFO [stderr]   |
Dec 14 11:09:32.814 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 11:09:32.814 INFO [stderr] 
Dec 14 11:09:32.814 INFO [stderr] warning: unused variable: `hello_world1`
Dec 14 11:09:32.814 INFO [stderr]   --> src/main.rs:24:6
Dec 14 11:09:32.814 INFO [stderr]    |
Dec 14 11:09:32.814 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 14 11:09:32.814 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 14 11:09:32.814 INFO [stderr] 
Dec 14 11:09:32.814 INFO [stderr] warning: unused variable: `hello_world2`
Dec 14 11:09:32.814 INFO [stderr]   --> src/main.rs:28:6
Dec 14 11:09:32.814 INFO [stderr]    |
Dec 14 11:09:32.814 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 14 11:09:32.814 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 14 11:09:32.814 INFO [stderr] 
Dec 14 11:09:32.835 INFO [stderr] warning: function is never used: `for_loop`
Dec 14 11:09:32.835 INFO [stderr]  --> src/main.rs:1:1
Dec 14 11:09:32.835 INFO [stderr]   |
Dec 14 11:09:32.835 INFO [stderr] 1 | fn for_loop(){
Dec 14 11:09:32.835 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 14 11:09:32.835 INFO [stderr]   |
Dec 14 11:09:32.835 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 14 11:09:32.835 INFO [stderr] 
Dec 14 11:09:32.835 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 14 11:09:32.835 INFO [stderr]   --> src/main.rs:10:1
Dec 14 11:09:32.835 INFO [stderr]    |
Dec 14 11:09:32.835 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 14 11:09:32.835 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 11:09:32.835 INFO [stderr] 
Dec 14 11:09:32.835 INFO [stderr] warning: function is never used: `string_example`
Dec 14 11:09:32.835 INFO [stderr]   --> src/main.rs:20:1
Dec 14 11:09:32.835 INFO [stderr]    |
Dec 14 11:09:32.835 INFO [stderr] 20 | fn string_example(){
Dec 14 11:09:32.835 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 14 11:09:32.835 INFO [stderr] 
Dec 14 11:09:32.835 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 14 11:09:32.835 INFO [stderr]   --> src/main.rs:31:1
Dec 14 11:09:32.835 INFO [stderr]    |
Dec 14 11:09:32.835 INFO [stderr] 31 | struct Circle{
Dec 14 11:09:32.835 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 14 11:09:32.835 INFO [stderr] 
Dec 14 11:09:32.835 INFO [stderr] warning: method is never used: `area`
Dec 14 11:09:32.835 INFO [stderr]   --> src/main.rs:38:2
Dec 14 11:09:32.835 INFO [stderr]    |
Dec 14 11:09:32.835 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 14 11:09:32.835 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 14 11:09:32.835 INFO [stderr] 
Dec 14 11:09:32.835 INFO [stderr] warning: function is never used: `circle_area`
Dec 14 11:09:32.835 INFO [stderr]   --> src/main.rs:43:1
Dec 14 11:09:32.835 INFO [stderr]    |
Dec 14 11:09:32.835 INFO [stderr] 43 | fn circle_area(){ 
Dec 14 11:09:32.835 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 14 11:09:32.835 INFO [stderr] 
Dec 14 11:09:33.188 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
Dec 14 11:09:33.195 INFO [stderr] su: No module specific data is present
Dec 14 11:09:33.944 INFO running `"docker" "inspect" "4b01d67ab5874d972c406c40b3dcfd067c842f5328eae8fb8bcfb031f1feca66"`
Dec 14 11:09:34.180 INFO running `"docker" "rm" "-f" "4b01d67ab5874d972c406c40b3dcfd067c842f5328eae8fb8bcfb031f1feca66"`
Dec 14 11:09:34.383 INFO [stdout] 4b01d67ab5874d972c406c40b3dcfd067c842f5328eae8fb8bcfb031f1feca66
Dec 14 11:09:34.387 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 14 11:09:34.912 INFO [stdout] 8fa87b158f9079657f9fbe20cca95ed42931423b96f85a0f226c7b8a1253c387
Dec 14 11:09:34.912 INFO running `"docker" "start" "-a" "8fa87b158f9079657f9fbe20cca95ed42931423b96f85a0f226c7b8a1253c387"`
Dec 14 11:09:36.631 INFO [stderr] usermod: no changes
Dec 14 11:09:36.691 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 14 11:09:37.331 INFO [stderr] warning: unused variable: `i`
Dec 14 11:09:37.331 INFO [stderr]  --> src/main.rs:4:9
Dec 14 11:09:37.331 INFO [stderr]   |
Dec 14 11:09:37.331 INFO [stderr] 4 |     for i in 0..10{
Dec 14 11:09:37.331 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 14 11:09:37.331 INFO [stderr]   |
Dec 14 11:09:37.331 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 14 11:09:37.331 INFO [stderr] 
Dec 14 11:09:37.331 INFO [stderr] warning: unused variable: `hello_world1`
Dec 14 11:09:37.331 INFO [stderr]   --> src/main.rs:24:6
Dec 14 11:09:37.331 INFO [stderr]    |
Dec 14 11:09:37.331 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 14 11:09:37.331 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 14 11:09:37.331 INFO [stderr] 
Dec 14 11:09:37.331 INFO [stderr] warning: unused variable: `hello_world2`
Dec 14 11:09:37.331 INFO [stderr]   --> src/main.rs:28:6
Dec 14 11:09:37.331 INFO [stderr]    |
Dec 14 11:09:37.331 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 14 11:09:37.331 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 14 11:09:37.331 INFO [stderr] 
Dec 14 11:09:37.351 INFO [stderr] warning: function is never used: `for_loop`
Dec 14 11:09:37.351 INFO [stderr]  --> src/main.rs:1:1
Dec 14 11:09:37.351 INFO [stderr]   |
Dec 14 11:09:37.351 INFO [stderr] 1 | fn for_loop(){
Dec 14 11:09:37.351 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 14 11:09:37.351 INFO [stderr]   |
Dec 14 11:09:37.351 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 14 11:09:37.351 INFO [stderr] 
Dec 14 11:09:37.351 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 14 11:09:37.351 INFO [stderr]   --> src/main.rs:10:1
Dec 14 11:09:37.351 INFO [stderr]    |
Dec 14 11:09:37.351 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 14 11:09:37.351 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 11:09:37.351 INFO [stderr] 
Dec 14 11:09:37.351 INFO [stderr] warning: function is never used: `string_example`
Dec 14 11:09:37.351 INFO [stderr]   --> src/main.rs:20:1
Dec 14 11:09:37.351 INFO [stderr]    |
Dec 14 11:09:37.351 INFO [stderr] 20 | fn string_example(){
Dec 14 11:09:37.351 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 14 11:09:37.351 INFO [stderr] 
Dec 14 11:09:37.351 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 14 11:09:37.351 INFO [stderr]   --> src/main.rs:31:1
Dec 14 11:09:37.351 INFO [stderr]    |
Dec 14 11:09:37.351 INFO [stderr] 31 | struct Circle{
Dec 14 11:09:37.351 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 14 11:09:37.351 INFO [stderr] 
Dec 14 11:09:37.351 INFO [stderr] warning: method is never used: `area`
Dec 14 11:09:37.351 INFO [stderr]   --> src/main.rs:38:2
Dec 14 11:09:37.351 INFO [stderr]    |
Dec 14 11:09:37.351 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 14 11:09:37.351 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 14 11:09:37.351 INFO [stderr] 
Dec 14 11:09:37.351 INFO [stderr] warning: function is never used: `circle_area`
Dec 14 11:09:37.351 INFO [stderr]   --> src/main.rs:43:1
Dec 14 11:09:37.351 INFO [stderr]    |
Dec 14 11:09:37.351 INFO [stderr] 43 | fn circle_area(){ 
Dec 14 11:09:37.351 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 14 11:09:37.351 INFO [stderr] 
Dec 14 11:09:37.637 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Dec 14 11:09:37.638 INFO [stderr] su: No module specific data is present
Dec 14 11:09:38.331 INFO running `"docker" "inspect" "8fa87b158f9079657f9fbe20cca95ed42931423b96f85a0f226c7b8a1253c387"`
Dec 14 11:09:38.764 INFO running `"docker" "rm" "-f" "8fa87b158f9079657f9fbe20cca95ed42931423b96f85a0f226c7b8a1253c387"`
Dec 14 11:09:39.039 INFO [stdout] 8fa87b158f9079657f9fbe20cca95ed42931423b96f85a0f226c7b8a1253c387
Dec 14 11:09:39.044 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 14 11:09:39.607 INFO [stdout] 08702f70dd6ba1bc4c27c9aac1f93b4662c9fe15f207b4c053e7c4d2ac9d9067
Dec 14 11:09:39.615 INFO running `"docker" "start" "-a" "08702f70dd6ba1bc4c27c9aac1f93b4662c9fe15f207b4c053e7c4d2ac9d9067"`
Dec 14 11:09:40.800 INFO [stderr] usermod: no changes
Dec 14 11:09:40.895 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 14 11:09:40.895 INFO [stderr]      Running /target/debug/deps/hello_world-e069901dbbb05a3b
Dec 14 11:09:40.895 INFO [stderr] su: No module specific data is present
Dec 14 11:09:40.895 INFO [stdout] 
Dec 14 11:09:40.895 INFO [stdout] running 0 tests
Dec 14 11:09:40.895 INFO [stdout] 
Dec 14 11:09:40.895 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 11:09:40.895 INFO [stdout] 
Dec 14 11:09:41.721 INFO running `"docker" "inspect" "08702f70dd6ba1bc4c27c9aac1f93b4662c9fe15f207b4c053e7c4d2ac9d9067"`
Dec 14 11:09:42.029 INFO running `"docker" "rm" "-f" "08702f70dd6ba1bc4c27c9aac1f93b4662c9fe15f207b4c053e7c4d2ac9d9067"`
Dec 14 11:09:42.347 INFO [stdout] 08702f70dd6ba1bc4c27c9aac1f93b4662c9fe15f207b4c053e7c4d2ac9d9067