Dec 06 14:46:28.019 INFO testing DLeyland/Hello-Rust against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 14:46:28.019 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 14:46:28.442 INFO [stdout] e64236958e8a355d1e2ed4f4a1a7618c787536be82745a89a1b0bcfe4fbec1ac
Dec 06 14:46:28.448 INFO running `"docker" "start" "-a" "e64236958e8a355d1e2ed4f4a1a7618c787536be82745a89a1b0bcfe4fbec1ac"`
Dec 06 14:46:29.276 INFO [stderr] usermod: no changes
Dec 06 14:46:29.308 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 06 14:46:29.799 INFO [stderr] warning: unused variable: `i`
Dec 06 14:46:29.799 INFO [stderr]  --> src/main.rs:4:9
Dec 06 14:46:29.799 INFO [stderr]   |
Dec 06 14:46:29.799 INFO [stderr] 4 |     for i in 0..10{
Dec 06 14:46:29.799 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 06 14:46:29.799 INFO [stderr]   |
Dec 06 14:46:29.799 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 06 14:46:29.799 INFO [stderr] 
Dec 06 14:46:29.799 INFO [stderr] warning: unused variable: `hello_world1`
Dec 06 14:46:29.799 INFO [stderr]   --> src/main.rs:24:6
Dec 06 14:46:29.799 INFO [stderr]    |
Dec 06 14:46:29.799 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 06 14:46:29.799 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 06 14:46:29.799 INFO [stderr] 
Dec 06 14:46:29.799 INFO [stderr] warning: unused variable: `hello_world2`
Dec 06 14:46:29.799 INFO [stderr]   --> src/main.rs:28:6
Dec 06 14:46:29.799 INFO [stderr]    |
Dec 06 14:46:29.799 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 06 14:46:29.799 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 06 14:46:29.799 INFO [stderr] 
Dec 06 14:46:29.808 INFO [stderr] warning: function is never used: `for_loop`
Dec 06 14:46:29.808 INFO [stderr]  --> src/main.rs:1:1
Dec 06 14:46:29.808 INFO [stderr]   |
Dec 06 14:46:29.808 INFO [stderr] 1 | fn for_loop(){
Dec 06 14:46:29.808 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 06 14:46:29.808 INFO [stderr]   |
Dec 06 14:46:29.808 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 14:46:29.808 INFO [stderr] 
Dec 06 14:46:29.808 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 06 14:46:29.808 INFO [stderr]   --> src/main.rs:10:1
Dec 06 14:46:29.808 INFO [stderr]    |
Dec 06 14:46:29.808 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 06 14:46:29.808 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:29.809 INFO [stderr] 
Dec 06 14:46:29.809 INFO [stderr] warning: function is never used: `string_example`
Dec 06 14:46:29.809 INFO [stderr]   --> src/main.rs:20:1
Dec 06 14:46:29.809 INFO [stderr]    |
Dec 06 14:46:29.809 INFO [stderr] 20 | fn string_example(){
Dec 06 14:46:29.809 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:29.809 INFO [stderr] 
Dec 06 14:46:29.809 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 06 14:46:29.809 INFO [stderr]   --> src/main.rs:31:1
Dec 06 14:46:29.809 INFO [stderr]    |
Dec 06 14:46:29.809 INFO [stderr] 31 | struct Circle{
Dec 06 14:46:29.809 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 06 14:46:29.809 INFO [stderr] 
Dec 06 14:46:29.809 INFO [stderr] warning: method is never used: `area`
Dec 06 14:46:29.809 INFO [stderr]   --> src/main.rs:38:2
Dec 06 14:46:29.809 INFO [stderr]    |
Dec 06 14:46:29.809 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 06 14:46:29.809 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:29.809 INFO [stderr] 
Dec 06 14:46:29.809 INFO [stderr] warning: function is never used: `circle_area`
Dec 06 14:46:29.809 INFO [stderr]   --> src/main.rs:43:1
Dec 06 14:46:29.809 INFO [stderr]    |
Dec 06 14:46:29.809 INFO [stderr] 43 | fn circle_area(){ 
Dec 06 14:46:29.809 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 06 14:46:29.809 INFO [stderr] 
Dec 06 14:46:30.188 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Dec 06 14:46:30.191 INFO [stderr] su: No module specific data is present
Dec 06 14:46:30.850 INFO running `"docker" "inspect" "e64236958e8a355d1e2ed4f4a1a7618c787536be82745a89a1b0bcfe4fbec1ac"`
Dec 06 14:46:31.111 INFO running `"docker" "rm" "-f" "e64236958e8a355d1e2ed4f4a1a7618c787536be82745a89a1b0bcfe4fbec1ac"`
Dec 06 14:46:31.300 INFO [stdout] e64236958e8a355d1e2ed4f4a1a7618c787536be82745a89a1b0bcfe4fbec1ac
Dec 06 14:46:31.302 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 14:46:31.706 INFO [stdout] c5784bfcd10dc2bdd39911fcfaa8fe47df72b5806268807e71cf9ac1aaf670b7
Dec 06 14:46:31.712 INFO running `"docker" "start" "-a" "c5784bfcd10dc2bdd39911fcfaa8fe47df72b5806268807e71cf9ac1aaf670b7"`
Dec 06 14:46:32.588 INFO [stderr] usermod: no changes
Dec 06 14:46:32.621 INFO [stderr]    Compiling hello_world v0.0.1 (/source)
Dec 06 14:46:33.108 INFO [stderr] warning: unused variable: `i`
Dec 06 14:46:33.108 INFO [stderr]  --> src/main.rs:4:9
Dec 06 14:46:33.108 INFO [stderr]   |
Dec 06 14:46:33.108 INFO [stderr] 4 |     for i in 0..10{
Dec 06 14:46:33.108 INFO [stderr]   |         ^ help: consider using `_i` instead
Dec 06 14:46:33.108 INFO [stderr]   |
Dec 06 14:46:33.108 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 06 14:46:33.108 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: unused variable: `hello_world1`
Dec 06 14:46:33.123 INFO [stderr]   --> src/main.rs:24:6
Dec 06 14:46:33.123 INFO [stderr]    |
Dec 06 14:46:33.123 INFO [stderr] 24 |     let hello_world1 = hello + world1; //no ampersand needed to add a string and a &str
Dec 06 14:46:33.123 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world1` instead
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: unused variable: `hello_world2`
Dec 06 14:46:33.123 INFO [stderr]   --> src/main.rs:28:6
Dec 06 14:46:33.123 INFO [stderr]    |
Dec 06 14:46:33.123 INFO [stderr] 28 |     let hello_world2 = hello2 + &world2; //ampersand needed when adding two strings, to allow second string to deref into &str
Dec 06 14:46:33.123 INFO [stderr]    |         ^^^^^^^^^^^^ help: consider using `_hello_world2` instead
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: function is never used: `for_loop`
Dec 06 14:46:33.123 INFO [stderr]  --> src/main.rs:1:1
Dec 06 14:46:33.123 INFO [stderr]   |
Dec 06 14:46:33.123 INFO [stderr] 1 | fn for_loop(){
Dec 06 14:46:33.123 INFO [stderr]   | ^^^^^^^^^^^^^
Dec 06 14:46:33.123 INFO [stderr]   |
Dec 06 14:46:33.123 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: function is never used: `while_loop_with_vec`
Dec 06 14:46:33.123 INFO [stderr]   --> src/main.rs:10:1
Dec 06 14:46:33.123 INFO [stderr]    |
Dec 06 14:46:33.123 INFO [stderr] 10 | fn while_loop_with_vec(){
Dec 06 14:46:33.123 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: function is never used: `string_example`
Dec 06 14:46:33.123 INFO [stderr]   --> src/main.rs:20:1
Dec 06 14:46:33.123 INFO [stderr]    |
Dec 06 14:46:33.123 INFO [stderr] 20 | fn string_example(){
Dec 06 14:46:33.123 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 06 14:46:33.123 INFO [stderr]   --> src/main.rs:31:1
Dec 06 14:46:33.123 INFO [stderr]    |
Dec 06 14:46:33.123 INFO [stderr] 31 | struct Circle{
Dec 06 14:46:33.123 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: method is never used: `area`
Dec 06 14:46:33.123 INFO [stderr]   --> src/main.rs:38:2
Dec 06 14:46:33.123 INFO [stderr]    |
Dec 06 14:46:33.123 INFO [stderr] 38 |     fn area(&self)->f64{
Dec 06 14:46:33.123 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.123 INFO [stderr] warning: function is never used: `circle_area`
Dec 06 14:46:33.123 INFO [stderr]   --> src/main.rs:43:1
Dec 06 14:46:33.123 INFO [stderr]    |
Dec 06 14:46:33.123 INFO [stderr] 43 | fn circle_area(){ 
Dec 06 14:46:33.123 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 06 14:46:33.123 INFO [stderr] 
Dec 06 14:46:33.373 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Dec 06 14:46:33.376 INFO [stderr] su: No module specific data is present
Dec 06 14:46:33.723 INFO running `"docker" "inspect" "c5784bfcd10dc2bdd39911fcfaa8fe47df72b5806268807e71cf9ac1aaf670b7"`
Dec 06 14:46:33.944 INFO running `"docker" "rm" "-f" "c5784bfcd10dc2bdd39911fcfaa8fe47df72b5806268807e71cf9ac1aaf670b7"`
Dec 06 14:46:34.140 INFO [stdout] c5784bfcd10dc2bdd39911fcfaa8fe47df72b5806268807e71cf9ac1aaf670b7
Dec 06 14:46:34.146 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 14:46:34.489 INFO [stdout] 2ae5be7830adfa61487efe34eb7f82167c9cf5bdf0b71585f9508f67d4a22b2f
Dec 06 14:46:34.491 INFO running `"docker" "start" "-a" "2ae5be7830adfa61487efe34eb7f82167c9cf5bdf0b71585f9508f67d4a22b2f"`
Dec 06 14:46:35.546 INFO [stderr] usermod: no changes
Dec 06 14:46:35.580 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 06 14:46:35.580 INFO [stderr]      Running /target/debug/deps/hello_world-a4b9b1668d170fcd
Dec 06 14:46:35.589 INFO [stdout] 
Dec 06 14:46:35.589 INFO [stdout] running 0 tests
Dec 06 14:46:35.589 INFO [stdout] 
Dec 06 14:46:35.589 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 14:46:35.589 INFO [stdout] 
Dec 06 14:46:35.592 INFO [stderr] su: No module specific data is present
Dec 06 14:46:36.180 INFO running `"docker" "inspect" "2ae5be7830adfa61487efe34eb7f82167c9cf5bdf0b71585f9508f67d4a22b2f"`
Dec 06 14:46:36.318 INFO running `"docker" "rm" "-f" "2ae5be7830adfa61487efe34eb7f82167c9cf5bdf0b71585f9508f67d4a22b2f"`
Dec 06 14:46:36.467 INFO [stdout] 2ae5be7830adfa61487efe34eb7f82167c9cf5bdf0b71585f9508f67d4a22b2f