Dec 06 14:46:21.350 INFO testing DLeyland/Hello-Rust against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 14:46:21.350 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 14:46:21.846 INFO [stdout] 831265ac4ea4421184a7fcab8732748362e1ab88198bef5942c0684f2ea0d49b
Dec 06 14:46:21.848 INFO running `"docker" "start" "-a" "831265ac4ea4421184a7fcab8732748362e1ab88198bef5942c0684f2ea0d49b"`
Dec 06 14:46:23.288 INFO [stderr] usermod: no changes
Dec 06 14:46:23.340 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 06 14:46:23.832 INFO [stderr] warning: unused variable: `i`
Dec 06 14:46:23.832 INFO [stderr]  --> src/main.rs:4:9
Dec 06 14:46:23.832 INFO [stderr]   |
Dec 06 14:46:23.832 INFO [stderr] 4 |     for i in 0..10{
Dec 06 14:46:23.832 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 06 14:46:23.832 INFO [stderr]   |
Dec 06 14:46:23.832 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 06 14:46:23.832 INFO [stderr] 
Dec 06 14:46:23.832 INFO [stderr] warning: unused variable: `hello_world1`
Dec 06 14:46:23.832 INFO [stderr]   --> src/main.rs:24:6
Dec 06 14:46:23.832 INFO [stderr]    |
Dec 06 14:46:23.832 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 06 14:46:23.832 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 06 14:46:23.832 INFO [stderr] 
Dec 06 14:46:23.832 INFO [stderr] warning: unused variable: `hello_world2`
Dec 06 14:46:23.832 INFO [stderr]   --> src/main.rs:28:6
Dec 06 14:46:23.832 INFO [stderr]    |
Dec 06 14:46:23.832 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 06 14:46:23.832 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 06 14:46:23.832 INFO [stderr] 
Dec 06 14:46:23.840 INFO [stderr] warning: function is never used: `for_loop`
Dec 06 14:46:23.840 INFO [stderr]  --> src/main.rs:1:1
Dec 06 14:46:23.840 INFO [stderr]   |
Dec 06 14:46:23.840 INFO [stderr] 1 | fn for_loop(){
Dec 06 14:46:23.840 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 06 14:46:23.840 INFO [stderr]   |
Dec 06 14:46:23.840 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 14:46:23.840 INFO [stderr] 
Dec 06 14:46:23.840 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 06 14:46:23.840 INFO [stderr]   --> src/main.rs:10:1
Dec 06 14:46:23.840 INFO [stderr]    |
Dec 06 14:46:23.840 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 06 14:46:23.840 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:23.840 INFO [stderr] 
Dec 06 14:46:23.840 INFO [stderr] warning: function is never used: `string_example`
Dec 06 14:46:23.840 INFO [stderr]   --> src/main.rs:20:1
Dec 06 14:46:23.840 INFO [stderr]    |
Dec 06 14:46:23.840 INFO [stderr] 20 | fn string_example(){
Dec 06 14:46:23.840 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:23.841 INFO [stderr] 
Dec 06 14:46:23.841 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 06 14:46:23.841 INFO [stderr]   --> src/main.rs:31:1
Dec 06 14:46:23.841 INFO [stderr]    |
Dec 06 14:46:23.841 INFO [stderr] 31 | struct Circle{
Dec 06 14:46:23.841 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 06 14:46:23.841 INFO [stderr] 
Dec 06 14:46:23.841 INFO [stderr] warning: method is never used: `area`
Dec 06 14:46:23.841 INFO [stderr]   --> src/main.rs:38:2
Dec 06 14:46:23.841 INFO [stderr]    |
Dec 06 14:46:23.841 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 06 14:46:23.841 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:23.841 INFO [stderr] 
Dec 06 14:46:23.841 INFO [stderr] warning: function is never used: `circle_area`
Dec 06 14:46:23.841 INFO [stderr]   --> src/main.rs:43:1
Dec 06 14:46:23.841 INFO [stderr]    |
Dec 06 14:46:23.841 INFO [stderr] 43 | fn circle_area(){ 
Dec 06 14:46:23.841 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 06 14:46:23.841 INFO [stderr] 
Dec 06 14:46:24.132 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Dec 06 14:46:24.135 INFO [stderr] su: No module specific data is present
Dec 06 14:46:24.954 INFO running `"docker" "inspect" "831265ac4ea4421184a7fcab8732748362e1ab88198bef5942c0684f2ea0d49b"`
Dec 06 14:46:25.204 INFO running `"docker" "rm" "-f" "831265ac4ea4421184a7fcab8732748362e1ab88198bef5942c0684f2ea0d49b"`
Dec 06 14:46:25.520 INFO [stdout] 831265ac4ea4421184a7fcab8732748362e1ab88198bef5942c0684f2ea0d49b
Dec 06 14:46:25.520 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 14:46:25.966 INFO [stdout] 0acd864805031f68587b1a0d1a8778ab404ac74bba99e7c67252c2659ab65b2b
Dec 06 14:46:25.968 INFO running `"docker" "start" "-a" "0acd864805031f68587b1a0d1a8778ab404ac74bba99e7c67252c2659ab65b2b"`
Dec 06 14:46:27.400 INFO [stderr] usermod: no changes
Dec 06 14:46:27.440 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 06 14:46:27.964 INFO [stderr] warning: unused variable: `i`
Dec 06 14:46:27.964 INFO [stderr]  --> src/main.rs:4:9
Dec 06 14:46:27.964 INFO [stderr]   |
Dec 06 14:46:27.964 INFO [stderr] 4 |     for i in 0..10{
Dec 06 14:46:27.964 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 06 14:46:27.964 INFO [stderr]   |
Dec 06 14:46:27.964 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 06 14:46:27.964 INFO [stderr] 
Dec 06 14:46:27.964 INFO [stderr] warning: unused variable: `hello_world1`
Dec 06 14:46:27.964 INFO [stderr]   --> src/main.rs:24:6
Dec 06 14:46:27.964 INFO [stderr]    |
Dec 06 14:46:27.964 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 06 14:46:27.964 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 06 14:46:27.964 INFO [stderr] 
Dec 06 14:46:27.964 INFO [stderr] warning: unused variable: `hello_world2`
Dec 06 14:46:27.964 INFO [stderr]   --> src/main.rs:28:6
Dec 06 14:46:27.964 INFO [stderr]    |
Dec 06 14:46:27.964 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 06 14:46:27.964 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 06 14:46:27.964 INFO [stderr] 
Dec 06 14:46:27.967 INFO [stderr] warning: function is never used: `for_loop`
Dec 06 14:46:27.967 INFO [stderr]  --> src/main.rs:1:1
Dec 06 14:46:27.967 INFO [stderr]   |
Dec 06 14:46:27.967 INFO [stderr] 1 | fn for_loop(){
Dec 06 14:46:27.967 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 06 14:46:27.967 INFO [stderr]   |
Dec 06 14:46:27.967 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 14:46:27.967 INFO [stderr] 
Dec 06 14:46:27.967 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 06 14:46:27.967 INFO [stderr]   --> src/main.rs:10:1
Dec 06 14:46:27.967 INFO [stderr]    |
Dec 06 14:46:27.967 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 06 14:46:27.967 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:27.967 INFO [stderr] 
Dec 06 14:46:27.967 INFO [stderr] warning: function is never used: `string_example`
Dec 06 14:46:27.967 INFO [stderr]   --> src/main.rs:20:1
Dec 06 14:46:27.967 INFO [stderr]    |
Dec 06 14:46:27.967 INFO [stderr] 20 | fn string_example(){
Dec 06 14:46:27.967 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:27.967 INFO [stderr] 
Dec 06 14:46:27.967 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 06 14:46:27.967 INFO [stderr]   --> src/main.rs:31:1
Dec 06 14:46:27.967 INFO [stderr]    |
Dec 06 14:46:27.967 INFO [stderr] 31 | struct Circle{
Dec 06 14:46:27.967 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 06 14:46:27.967 INFO [stderr] 
Dec 06 14:46:27.967 INFO [stderr] warning: method is never used: `area`
Dec 06 14:46:27.967 INFO [stderr]   --> src/main.rs:38:2
Dec 06 14:46:27.967 INFO [stderr]    |
Dec 06 14:46:27.967 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 06 14:46:27.967 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:27.967 INFO [stderr] 
Dec 06 14:46:27.967 INFO [stderr] warning: function is never used: `circle_area`
Dec 06 14:46:27.967 INFO [stderr]   --> src/main.rs:43:1
Dec 06 14:46:27.967 INFO [stderr]    |
Dec 06 14:46:27.967 INFO [stderr] 43 | fn circle_area(){ 
Dec 06 14:46:27.967 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 06 14:46:27.967 INFO [stderr] 
Dec 06 14:46:28.204 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Dec 06 14:46:28.206 INFO [stderr] su: No module specific data is present
Dec 06 14:46:28.762 INFO running `"docker" "inspect" "0acd864805031f68587b1a0d1a8778ab404ac74bba99e7c67252c2659ab65b2b"`
Dec 06 14:46:28.914 INFO running `"docker" "rm" "-f" "0acd864805031f68587b1a0d1a8778ab404ac74bba99e7c67252c2659ab65b2b"`
Dec 06 14:46:29.135 INFO [stdout] 0acd864805031f68587b1a0d1a8778ab404ac74bba99e7c67252c2659ab65b2b
Dec 06 14:46:29.144 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 14:46:29.447 INFO [stdout] 853aed50a507f97564ec6cab56adf73344aa417b75bce9d98f8bd54cd22b60b0
Dec 06 14:46:29.449 INFO running `"docker" "start" "-a" "853aed50a507f97564ec6cab56adf73344aa417b75bce9d98f8bd54cd22b60b0"`
Dec 06 14:46:30.708 INFO [stderr] usermod: no changes
Dec 06 14:46:30.756 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 14:46:30.760 INFO [stderr]      Running /target/debug/deps/hello_world-c8ca0579314b8be4
Dec 06 14:46:30.764 INFO [stderr] su: No module specific data is present
Dec 06 14:46:30.764 INFO [stdout] 
Dec 06 14:46:30.764 INFO [stdout] running 0 tests
Dec 06 14:46:30.764 INFO [stdout] 
Dec 06 14:46:30.764 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 14:46:30.764 INFO [stdout] 
Dec 06 14:46:31.434 INFO running `"docker" "inspect" "853aed50a507f97564ec6cab56adf73344aa417b75bce9d98f8bd54cd22b60b0"`
Dec 06 14:46:31.751 INFO running `"docker" "rm" "-f" "853aed50a507f97564ec6cab56adf73344aa417b75bce9d98f8bd54cd22b60b0"`
Dec 06 14:46:32.048 INFO [stdout] 853aed50a507f97564ec6cab56adf73344aa417b75bce9d98f8bd54cd22b60b0