[INFO] updating cached repository https://github.com/neerajbisht1987/hellocargo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 898c0403c77f18e63b407329e244627069ced582
[INFO] testing neerajbisht1987/hellocargo against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneerajbisht1987%2Fhellocargo" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neerajbisht1987/hellocargo on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/neerajbisht1987/hellocargo
[INFO] finished tweaking git repo https://github.com/neerajbisht1987/hellocargo
[INFO] tweaked toml for git repo https://github.com/neerajbisht1987/hellocargo written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/neerajbisht1987/hellocargo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b611a2255d61a2b89a0dd2e6b40427e0df1465dfd97e9ff180da53bfe4827591
[INFO] running `"docker" "start" "-a" "b611a2255d61a2b89a0dd2e6b40427e0df1465dfd97e9ff180da53bfe4827591"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: type `item_list` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 | enum item_list {
[INFO] [stderr]    |      ^^^^^^^^^ help: convert the identifier to upper camel case: `ItemList`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `pair` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:99:2
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pair{x:u32,y:Box<item_list>},
[INFO] [stderr]    |     ^^^^ help: convert the identifier to upper camel case: `Pair`
[INFO] [stderr] 
[INFO] [stderr] warning: type `refCount` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 | struct refCount<T>
[INFO] [stderr]     |        ^^^^^^^^ help: convert the identifier to upper camel case: `RefCount`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mystruct`
[INFO] [stderr]    --> src/main.rs:126:6
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let mystruct = module1::MyStruct{i:2};    
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mystruct`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:178:6
[INFO] [stderr]     |
[INFO] [stderr] 178 |     let b=rc.clone();
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `news_article_nosummarization`
[INFO] [stderr]    --> src/main.rs:322:6
[INFO] [stderr]     |
[INFO] [stderr] 322 |     let news_article_nosummarization = NewsArticleNoSummarization{
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_news_article_nosummarization`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `news_article_nosummarization`
[INFO] [stderr]    --> src/main.rs:329:6
[INFO] [stderr]     |
[INFO] [stderr] 329 |     let news_article_nosummarization = NewsArticleNoSummarization{
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_news_article_nosummarization`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/module1.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new(x: T) -> MyBox<T> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MyStruct`
[INFO] [stderr]   --> src/module1.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct MyStruct {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ref_testing`
[INFO] [stderr]   --> src/main.rs:82:4
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn ref_testing()
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `item_list`
[INFO] [stderr]   --> src/main.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 | enum item_list {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_testing`
[INFO] [stderr]    --> src/main.rs:103:4
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn match_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `findvalue`
[INFO] [stderr]    --> src/main.rs:113:4
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn findvalue(list:item_list,val:u32)
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `module_testing`
[INFO] [stderr]    --> src/main.rs:125:4
[INFO] [stderr]     |
[INFO] [stderr] 125 | fn module_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cons`
[INFO] [stderr]    --> src/main.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     Cons(Rc<RefCell<i32>>, Rc<List>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]    --> src/main.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     Nil,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Rfcell_testing`
[INFO] [stderr]    --> src/main.rs:141:4
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn Rfcell_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `refCount`
[INFO] [stderr]    --> src/main.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 | struct refCount<T>
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reference_Count_Testing`
[INFO] [stderr]    --> src/main.rs:166:4
[INFO] [stderr]     |
[INFO] [stderr] 166 | fn reference_Count_Testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `smarpointer_derefernce_testing`
[INFO] [stderr]    --> src/main.rs:189:4
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn smarpointer_derefernce_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `static_lifetime_testing`
[INFO] [stderr]    --> src/main.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn static_lifetime_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `returnsamevalue`
[INFO] [stderr]    --> src/main.rs:218:4
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn returnsamevalue(s:&str) ->&str{
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lifetime_ann_fn_testing`
[INFO] [stderr]    --> src/main.rs:241:4
[INFO] [stderr]     |
[INFO] [stderr] 241 | fn lifetime_ann_fn_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `longest`
[INFO] [stderr]    --> src/main.rs:268:4
[INFO] [stderr]     |
[INFO] [stderr] 268 | fn longest<'a>(x:&'a str,y:&'a str) -> &'a str
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trait_bound_with_vec_testing`
[INFO] [stderr]    --> src/main.rs:285:4
[INFO] [stderr]     |
[INFO] [stderr] 285 | fn trait_bound_with_vec_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest`
[INFO] [stderr]    --> src/main.rs:297:4
[INFO] [stderr]     |
[INFO] [stderr] 297 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trait_bound_testing`
[INFO] [stderr]    --> src/main.rs:314:4
[INFO] [stderr]     |
[INFO] [stderr] 314 | fn trait_bound_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `LinkList` should have a snake case name
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | mod LinkList;
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `link_list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `LinkList_testing` should have a snake case name
[INFO] [stderr]   --> src/main.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn LinkList_testing()
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `link_list_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: function `Rfcell_testing` should have a snake case name
[INFO] [stderr]    --> src/main.rs:141:4
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn Rfcell_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `rfcell_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: function `reference_Count_Testing` should have a snake case name
[INFO] [stderr]    --> src/main.rs:166:4
[INFO] [stderr]     |
[INFO] [stderr] 166 | fn reference_Count_Testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `reference_count_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rcI` should have a snake case name
[INFO] [stderr]    --> src/main.rs:171:6
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let rcI =refCount{val:String::from("this is a new string")};
[INFO] [stderr]     |         ^^^ help: convert the identifier to snake case: `rc_i`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `nodeInfo` should have a snake case name
[INFO] [stderr]   --> src/LinkList.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     nodeInfo : Box<Information>,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `node_info`
[INFO] [stderr] 
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "b611a2255d61a2b89a0dd2e6b40427e0df1465dfd97e9ff180da53bfe4827591"`
[INFO] running `"docker" "rm" "-f" "b611a2255d61a2b89a0dd2e6b40427e0df1465dfd97e9ff180da53bfe4827591"`
[INFO] [stdout] b611a2255d61a2b89a0dd2e6b40427e0df1465dfd97e9ff180da53bfe4827591
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 942962fbe1a772d9f18bad0a93146d51c5d14a0953cdc9ab956585b7c884546b
[INFO] running `"docker" "start" "-a" "942962fbe1a772d9f18bad0a93146d51c5d14a0953cdc9ab956585b7c884546b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: type `item_list` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 | enum item_list {
[INFO] [stderr]    |      ^^^^^^^^^ help: convert the identifier to upper camel case: `ItemList`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `pair` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:99:2
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pair{x:u32,y:Box<item_list>},
[INFO] [stderr]    |     ^^^^ help: convert the identifier to upper camel case: `Pair`
[INFO] [stderr] 
[INFO] [stderr] warning: type `refCount` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 | struct refCount<T>
[INFO] [stderr]     |        ^^^^^^^^ help: convert the identifier to upper camel case: `RefCount`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mystruct`
[INFO] [stderr]    --> src/main.rs:126:6
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let mystruct = module1::MyStruct{i:2};    
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mystruct`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:178:6
[INFO] [stderr]     |
[INFO] [stderr] 178 |     let b=rc.clone();
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `news_article_nosummarization`
[INFO] [stderr]    --> src/main.rs:322:6
[INFO] [stderr]     |
[INFO] [stderr] 322 |     let news_article_nosummarization = NewsArticleNoSummarization{
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_news_article_nosummarization`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `news_article_nosummarization`
[INFO] [stderr]    --> src/main.rs:329:6
[INFO] [stderr]     |
[INFO] [stderr] 329 |     let news_article_nosummarization = NewsArticleNoSummarization{
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_news_article_nosummarization`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/module1.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new(x: T) -> MyBox<T> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MyStruct`
[INFO] [stderr]   --> src/module1.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct MyStruct {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ref_testing`
[INFO] [stderr]   --> src/main.rs:82:4
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn ref_testing()
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `item_list`
[INFO] [stderr]   --> src/main.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 | enum item_list {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_testing`
[INFO] [stderr]    --> src/main.rs:103:4
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn match_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `findvalue`
[INFO] [stderr]    --> src/main.rs:113:4
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn findvalue(list:item_list,val:u32)
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `module_testing`
[INFO] [stderr]    --> src/main.rs:125:4
[INFO] [stderr]     |
[INFO] [stderr] 125 | fn module_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cons`
[INFO] [stderr]    --> src/main.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     Cons(Rc<RefCell<i32>>, Rc<List>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]    --> src/main.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     Nil,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Rfcell_testing`
[INFO] [stderr]    --> src/main.rs:141:4
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn Rfcell_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `refCount`
[INFO] [stderr]    --> src/main.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 | struct refCount<T>
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reference_Count_Testing`
[INFO] [stderr]    --> src/main.rs:166:4
[INFO] [stderr]     |
[INFO] [stderr] 166 | fn reference_Count_Testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `smarpointer_derefernce_testing`
[INFO] [stderr]    --> src/main.rs:189:4
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn smarpointer_derefernce_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `static_lifetime_testing`
[INFO] [stderr]    --> src/main.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn static_lifetime_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `returnsamevalue`
[INFO] [stderr]    --> src/main.rs:218:4
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn returnsamevalue(s:&str) ->&str{
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lifetime_ann_fn_testing`
[INFO] [stderr]    --> src/main.rs:241:4
[INFO] [stderr]     |
[INFO] [stderr] 241 | fn lifetime_ann_fn_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `longest`
[INFO] [stderr]    --> src/main.rs:268:4
[INFO] [stderr]     |
[INFO] [stderr] 268 | fn longest<'a>(x:&'a str,y:&'a str) -> &'a str
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trait_bound_with_vec_testing`
[INFO] [stderr]    --> src/main.rs:285:4
[INFO] [stderr]     |
[INFO] [stderr] 285 | fn trait_bound_with_vec_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest`
[INFO] [stderr]    --> src/main.rs:297:4
[INFO] [stderr]     |
[INFO] [stderr] 297 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trait_bound_testing`
[INFO] [stderr]    --> src/main.rs:314:4
[INFO] [stderr]     |
[INFO] [stderr] 314 | fn trait_bound_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `LinkList` should have a snake case name
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | mod LinkList;
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `link_list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `LinkList_testing` should have a snake case name
[INFO] [stderr]   --> src/main.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn LinkList_testing()
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `link_list_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: function `Rfcell_testing` should have a snake case name
[INFO] [stderr]    --> src/main.rs:141:4
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn Rfcell_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `rfcell_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: function `reference_Count_Testing` should have a snake case name
[INFO] [stderr]    --> src/main.rs:166:4
[INFO] [stderr]     |
[INFO] [stderr] 166 | fn reference_Count_Testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `reference_count_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rcI` should have a snake case name
[INFO] [stderr]    --> src/main.rs:171:6
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let rcI =refCount{val:String::from("this is a new string")};
[INFO] [stderr]     |         ^^^ help: convert the identifier to snake case: `rc_i`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `nodeInfo` should have a snake case name
[INFO] [stderr]   --> src/LinkList.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     nodeInfo : Box<Information>,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `node_info`
[INFO] [stderr] 
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "942962fbe1a772d9f18bad0a93146d51c5d14a0953cdc9ab956585b7c884546b"`
[INFO] running `"docker" "rm" "-f" "942962fbe1a772d9f18bad0a93146d51c5d14a0953cdc9ab956585b7c884546b"`
[INFO] [stdout] 942962fbe1a772d9f18bad0a93146d51c5d14a0953cdc9ab956585b7c884546b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 56094163cd562af6a806ba6452016184562c8e265189cef1c469301f6b10982b
[INFO] running `"docker" "start" "-a" "56094163cd562af6a806ba6452016184562c8e265189cef1c469301f6b10982b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: type `item_list` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 | enum item_list {
[INFO] [stderr]    |      ^^^^^^^^^ help: convert the identifier to upper camel case: `ItemList`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `pair` should have an upper camel case name
[INFO] [stderr]   --> src/main.rs:99:2
[INFO] [stderr]    |
[INFO] [stderr] 99 |     pair{x:u32,y:Box<item_list>},
[INFO] [stderr]    |     ^^^^ help: convert the identifier to upper camel case: `Pair`
[INFO] [stderr] 
[INFO] [stderr] warning: type `refCount` should have an upper camel case name
[INFO] [stderr]    --> src/main.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 | struct refCount<T>
[INFO] [stderr]     |        ^^^^^^^^ help: convert the identifier to upper camel case: `RefCount`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mystruct`
[INFO] [stderr]    --> src/main.rs:126:6
[INFO] [stderr]     |
[INFO] [stderr] 126 |     let mystruct = module1::MyStruct{i:2};    
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mystruct`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:178:6
[INFO] [stderr]     |
[INFO] [stderr] 178 |     let b=rc.clone();
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `news_article_nosummarization`
[INFO] [stderr]    --> src/main.rs:322:6
[INFO] [stderr]     |
[INFO] [stderr] 322 |     let news_article_nosummarization = NewsArticleNoSummarization{
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_news_article_nosummarization`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `news_article_nosummarization`
[INFO] [stderr]    --> src/main.rs:329:6
[INFO] [stderr]     |
[INFO] [stderr] 329 |     let news_article_nosummarization = NewsArticleNoSummarization{
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_news_article_nosummarization`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/module1.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub fn new(x: T) -> MyBox<T> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MyStruct`
[INFO] [stderr]   --> src/module1.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct MyStruct {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ref_testing`
[INFO] [stderr]   --> src/main.rs:82:4
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn ref_testing()
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `item_list`
[INFO] [stderr]   --> src/main.rs:98:6
[INFO] [stderr]    |
[INFO] [stderr] 98 | enum item_list {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_testing`
[INFO] [stderr]    --> src/main.rs:103:4
[INFO] [stderr]     |
[INFO] [stderr] 103 | fn match_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `findvalue`
[INFO] [stderr]    --> src/main.rs:113:4
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn findvalue(list:item_list,val:u32)
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `module_testing`
[INFO] [stderr]    --> src/main.rs:125:4
[INFO] [stderr]     |
[INFO] [stderr] 125 | fn module_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cons`
[INFO] [stderr]    --> src/main.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     Cons(Rc<RefCell<i32>>, Rc<List>),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]    --> src/main.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 |     Nil,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Rfcell_testing`
[INFO] [stderr]    --> src/main.rs:141:4
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn Rfcell_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `refCount`
[INFO] [stderr]    --> src/main.rs:161:8
[INFO] [stderr]     |
[INFO] [stderr] 161 | struct refCount<T>
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reference_Count_Testing`
[INFO] [stderr]    --> src/main.rs:166:4
[INFO] [stderr]     |
[INFO] [stderr] 166 | fn reference_Count_Testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `smarpointer_derefernce_testing`
[INFO] [stderr]    --> src/main.rs:189:4
[INFO] [stderr]     |
[INFO] [stderr] 189 | fn smarpointer_derefernce_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `static_lifetime_testing`
[INFO] [stderr]    --> src/main.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn static_lifetime_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `returnsamevalue`
[INFO] [stderr]    --> src/main.rs:218:4
[INFO] [stderr]     |
[INFO] [stderr] 218 | fn returnsamevalue(s:&str) ->&str{
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `lifetime_ann_fn_testing`
[INFO] [stderr]    --> src/main.rs:241:4
[INFO] [stderr]     |
[INFO] [stderr] 241 | fn lifetime_ann_fn_testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `longest`
[INFO] [stderr]    --> src/main.rs:268:4
[INFO] [stderr]     |
[INFO] [stderr] 268 | fn longest<'a>(x:&'a str,y:&'a str) -> &'a str
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trait_bound_with_vec_testing`
[INFO] [stderr]    --> src/main.rs:285:4
[INFO] [stderr]     |
[INFO] [stderr] 285 | fn trait_bound_with_vec_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest`
[INFO] [stderr]    --> src/main.rs:297:4
[INFO] [stderr]     |
[INFO] [stderr] 297 | fn largest<T: PartialOrd + Copy>(list: &[T]) -> T {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trait_bound_testing`
[INFO] [stderr]    --> src/main.rs:314:4
[INFO] [stderr]     |
[INFO] [stderr] 314 | fn trait_bound_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `LinkList` should have a snake case name
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | mod LinkList;
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `link_list`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `LinkList_testing` should have a snake case name
[INFO] [stderr]   --> src/main.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn LinkList_testing()
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `link_list_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: function `Rfcell_testing` should have a snake case name
[INFO] [stderr]    --> src/main.rs:141:4
[INFO] [stderr]     |
[INFO] [stderr] 141 | fn Rfcell_testing() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `rfcell_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: function `reference_Count_Testing` should have a snake case name
[INFO] [stderr]    --> src/main.rs:166:4
[INFO] [stderr]     |
[INFO] [stderr] 166 | fn reference_Count_Testing()
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `reference_count_testing`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rcI` should have a snake case name
[INFO] [stderr]    --> src/main.rs:171:6
[INFO] [stderr]     |
[INFO] [stderr] 171 |     let rcI =refCount{val:String::from("this is a new string")};
[INFO] [stderr]     |         ^^^ help: convert the identifier to snake case: `rc_i`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `nodeInfo` should have a snake case name
[INFO] [stderr]   --> src/LinkList.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     nodeInfo : Box<Information>,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `node_info`
[INFO] [stderr] 
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_cargo-ecf389ad3287757a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "56094163cd562af6a806ba6452016184562c8e265189cef1c469301f6b10982b"`
[INFO] running `"docker" "rm" "-f" "56094163cd562af6a806ba6452016184562c8e265189cef1c469301f6b10982b"`
[INFO] [stdout] 56094163cd562af6a806ba6452016184562c8e265189cef1c469301f6b10982b