[INFO] cloning repository https://github.com/unitsoftrover/test1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unitsoftrover/test1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funitsoftrover%2Ftest1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funitsoftrover%2Ftest1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be245185f7df2d5e2be8c079dac97b56d18e6890
[INFO] checking unitsoftrover/test1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funitsoftrover%2Ftest1" "/workspace/builds/worker-48/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-48/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/unitsoftrover/test1 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/unitsoftrover/test1
[INFO] finished tweaking git repo https://github.com/unitsoftrover/test1
[INFO] tweaked toml for git repo https://github.com/unitsoftrover/test1 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate git repo https://github.com/unitsoftrover/test1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e03733bfb0902754c122d13e2c0035da0adf52aa4b3b6052ee97d83d752907d8
[INFO] running `Command { std: "docker" "start" "-a" "e03733bfb0902754c122d13e2c0035da0adf52aa4b3b6052ee97d83d752907d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e03733bfb0902754c122d13e2c0035da0adf52aa4b3b6052ee97d83d752907d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e03733bfb0902754c122d13e2c0035da0adf52aa4b3b6052ee97d83d752907d8", kill_on_drop: false }`
[INFO] [stdout] e03733bfb0902754c122d13e2c0035da0adf52aa4b3b6052ee97d83d752907d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b535962cec8aa49d318d3197788444ad81a12007a1c3849581e0af78774462f
[INFO] running `Command { std: "docker" "start" "-a" "4b535962cec8aa49d318d3197788444ad81a12007a1c3849581e0af78774462f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/test.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/test.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `int` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     int,
[INFO] [stdout]     |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Int`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `varchar` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     varchar,
[INFO] [stdout]     |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Varchar`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `int` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     int,
[INFO] [stdout]     |     ^^^ help: convert the identifier to upper camel case (notice the capitalization): `Int`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `datetime` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     datetime,
[INFO] [stdout]     |     ^^^^^^^^ help: convert the identifier to upper camel case: `Datetime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `varchar` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:106:5
[INFO] [stdout]     |
[INFO] [stdout] 106 |     varchar,
[INFO] [stdout]     |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Varchar`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `double` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     double,
[INFO] [stdout]     |     ^^^^^^ help: convert the identifier to upper camel case: `Double`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `datetime` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     datetime,
[INFO] [stdout]     |     ^^^^^^^^ help: convert the identifier to upper camel case: `Datetime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `float` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     float,
[INFO] [stdout]     |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `double` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     double,
[INFO] [stdout]     |     ^^^^^^ help: convert the identifier to upper camel case: `Double`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `float` should have an upper camel case name
[INFO] [stdout]    --> src/test.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     float,
[INFO] [stdout]     |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `self_struct`
[INFO] [stdout]   --> src/test.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let self_struct = SelfStruct::new(&mut value, &id);
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_self_struct`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `self_struct`
[INFO] [stdout]   --> src/test.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let self_struct = SelfStruct::new(&mut value, &id);
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_self_struct`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]   --> src/test.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut b = A{
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/test.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut still_unmoved = unmoved;    
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/test.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let mut dref_ptr = &mut*(b.ptr.as_ptr() as * mut String);
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/test.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |         let mut list : ForwardList<T> = ForwardList{            
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/test.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let mut a = Node {
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_string`
[INFO] [stdout]  --> src/test.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_string(s: &dyn Any) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `int`
[INFO] [stdout]    --> src/test.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     int,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `datetime`
[INFO] [stdout]    --> src/test.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     datetime,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `double`
[INFO] [stdout]    --> src/test.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     double,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `float`
[INFO] [stdout]    --> src/test.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     float,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Test`
[INFO] [stdout]    --> src/test.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | struct Test{
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> src/test.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn test<F>(&mut self, fun : F)
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test_1`
[INFO] [stdout]    --> src/test.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn test_1(&mut self){
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test_2`
[INFO] [stdout]    --> src/test.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn test_2(&self){
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]    --> src/test.rs:239:8
[INFO] [stdout]     |
[INFO] [stdout] 239 |     fn print(&self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]    --> src/test.rs:244:8
[INFO] [stdout]     |
[INFO] [stdout] 244 | struct Node<'a, T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ForwardList`
[INFO] [stdout]    --> src/test.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 |  struct ForwardList<'a, T> {
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/test.rs:255:8
[INFO] [stdout]     |
[INFO] [stdout] 255 |     fn new() ->Self{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append`
[INFO] [stdout]    --> src/test.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn append(&mut self, new_data : &'static str){        
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_ref`
[INFO] [stdout]    --> src/test.rs:280:8
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn get_ref(&mut self, data : &'static str)->Option<&mut Node<'a, T>>{
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_forward_list`
[INFO] [stdout]    --> src/test.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn test_forward_list(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DoubleLinkList`
[INFO] [stdout]    --> src/test.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 301 | struct DoubleLinkList{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DoubleLinkNode`
[INFO] [stdout]    --> src/test.rs:308:8
[INFO] [stdout]     |
[INFO] [stdout] 308 | struct DoubleLinkNode{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/test.rs:317:8
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn new()->DoubleLinkList{       
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append`
[INFO] [stdout]    --> src/test.rs:327:8
[INFO] [stdout]     |
[INFO] [stdout] 327 |     fn append(&mut self, mut node : DoubleLinkNode){        
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b` is never read
[INFO] [stdout]   --> src/test.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut b = A{
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/test.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut still_unmoved = unmoved;    
[INFO] [stdout]    |         ----^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/test.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |             let mut dref_ptr = &mut*(b.ptr.as_ptr() as * mut String);
[INFO] [stdout]    |                 ----^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/test.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 |         let mut list : ForwardList<T> = ForwardList{            
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/test.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let mut a = Node {
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_string`
[INFO] [stdout]  --> src/test.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn is_string(s: &dyn Any) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `int`
[INFO] [stdout]    --> src/test.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 |     int,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `datetime`
[INFO] [stdout]    --> src/test.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     datetime,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `double`
[INFO] [stdout]    --> src/test.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     double,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `float`
[INFO] [stdout]    --> src/test.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     float,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Test`
[INFO] [stdout]    --> src/test.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | struct Test{
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> src/test.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn test<F>(&mut self, fun : F)
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test_1`
[INFO] [stdout]    --> src/test.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn test_1(&mut self){
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test_2`
[INFO] [stdout]    --> src/test.rs:167:8
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn test_2(&self){
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]    --> src/test.rs:239:8
[INFO] [stdout]     |
[INFO] [stdout] 239 |     fn print(&self){
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Node`
[INFO] [stdout]    --> src/test.rs:244:8
[INFO] [stdout]     |
[INFO] [stdout] 244 | struct Node<'a, T> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `ForwardList`
[INFO] [stdout]    --> src/test.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 |  struct ForwardList<'a, T> {
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/test.rs:255:8
[INFO] [stdout]     |
[INFO] [stdout] 255 |     fn new() ->Self{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append`
[INFO] [stdout]    --> src/test.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn append(&mut self, new_data : &'static str){        
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_ref`
[INFO] [stdout]    --> src/test.rs:280:8
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn get_ref(&mut self, data : &'static str)->Option<&mut Node<'a, T>>{
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_forward_list`
[INFO] [stdout]    --> src/test.rs:292:4
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn test_forward_list(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DoubleLinkList`
[INFO] [stdout]    --> src/test.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 301 | struct DoubleLinkList{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DoubleLinkNode`
[INFO] [stdout]    --> src/test.rs:308:8
[INFO] [stdout]     |
[INFO] [stdout] 308 | struct DoubleLinkNode{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/test.rs:317:8
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn new()->DoubleLinkList{       
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append`
[INFO] [stdout]    --> src/test.rs:327:8
[INFO] [stdout]     |
[INFO] [stdout] 327 |     fn append(&mut self, mut node : DoubleLinkNode){        
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `Class` should have a snake case name
[INFO] [stdout]   --> src/test.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn Class(&self)->String;
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to snake case (notice the capitalization): `class`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `Class` should have a snake case name
[INFO] [stdout]   --> src/test.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn Class(&self)->String;
[INFO] [stdout]    |        ^^^^^ help: convert the identifier to snake case (notice the capitalization): `class`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.66s
[INFO] running `Command { std: "docker" "inspect" "4b535962cec8aa49d318d3197788444ad81a12007a1c3849581e0af78774462f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b535962cec8aa49d318d3197788444ad81a12007a1c3849581e0af78774462f", kill_on_drop: false }`
[INFO] [stdout] 4b535962cec8aa49d318d3197788444ad81a12007a1c3849581e0af78774462f