[INFO] cloning repository https://github.com/thomshib/RustPlayground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomshib/RustPlayground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomshib%2FRustPlayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomshib%2FRustPlayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1fddb1f0d9dcd6ae92b9502881a89dcab99c1c8
[INFO] checking thomshib/RustPlayground against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomshib%2FRustPlayground" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomshib/RustPlayground on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thomshib/RustPlayground
[INFO] finished tweaking git repo https://github.com/thomshib/RustPlayground
[INFO] tweaked toml for git repo https://github.com/thomshib/RustPlayground written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/thomshib/RustPlayground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: bin.0.rand
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3305f75d6739dbf1e1ec0c79a4fe09cc9614c5ff5724b42ed69dd375693ef5cc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3305f75d6739dbf1e1ec0c79a4fe09cc9614c5ff5724b42ed69dd375693ef5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3305f75d6739dbf1e1ec0c79a4fe09cc9614c5ff5724b42ed69dd375693ef5cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3305f75d6739dbf1e1ec0c79a4fe09cc9614c5ff5724b42ed69dd375693ef5cc", kill_on_drop: false }`
[INFO] [stdout] 3305f75d6739dbf1e1ec0c79a4fe09cc9614c5ff5724b42ed69dd375693ef5cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f92f8f9a65cde5ef7b9c5a6647d53d07d30950f395ed2480ff4368c9ee545ab2
[INFO] running `Command { std: "docker" "start" "-a" "f92f8f9a65cde5ef7b9c5a6647d53d07d30950f395ed2480ff4368c9ee545ab2", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] warning: unused manifest key: bin.0.rand
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking scratchpad v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (4 fixes)
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/sh.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `origin`
[INFO] [stdout]   --> src/sh.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn origin() -> Point{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stack_and_heap`
[INFO] [stdout]   --> src/sh.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn stack_and_heap(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Color`
[INFO] [stdout]  --> src/color.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Color{
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]   --> src/color.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn enums(){
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices_main`
[INFO] [stdout]  --> src/slices.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn slices_main(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `use_slices`
[INFO] [stdout]   --> src/slices.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn use_slices(slice: &mut[i32]){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `strings`
[INFO] [stdout]  --> src/strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn strings(){
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuples`
[INFO] [stdout]  --> src/tuples.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn tuples(){
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_and_product`
[INFO] [stdout]   --> src/tuples.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn sum_and_product(x:i32, y: i32) -> (i32,i32){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `increase_value`
[INFO] [stdout]  --> src/func.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn increase_value(x: &mut i32){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `functions`
[INFO] [stdout]   --> src/func.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn functions(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/meth.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Point{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]  --> src/meth.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Line{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/meth.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn len(&self) -> f64{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `methods`
[INFO] [stdout]   --> src/meth.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn methods(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `closures`
[INFO] [stdout]  --> src/clos.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn closures(){
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_even`
[INFO] [stdout]  --> src/high.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_even(x: u32) ->bool{
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `higher_order_functions`
[INFO] [stdout]  --> src/high.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn higher_order_functions(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `traits`
[INFO] [stdout]   --> src/trt.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn traits(){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `Z`
[INFO] [stdout]   --> src/main.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |  static mut Z:i32 = 42;
[INFO] [stdout]    |  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |  fn data_types(){
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `operators`
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn operators(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `for_loop`
[INFO] [stdout]    --> src/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn for_loop(){
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_statement`
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn match_statement(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `options`
[INFO] [stdout]    --> src/main.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn options(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `array`
[INFO] [stdout]    --> src/main.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn array(){
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vectors`
[INFO] [stdout]    --> src/main.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn vectors(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/sh.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `origin`
[INFO] [stdout]   --> src/sh.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn origin() -> Point{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stack_and_heap`
[INFO] [stdout]   --> src/sh.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn stack_and_heap(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Color`
[INFO] [stdout]  --> src/color.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Color{
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]   --> src/color.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn enums(){
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices_main`
[INFO] [stdout]  --> src/slices.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn slices_main(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `use_slices`
[INFO] [stdout]   --> src/slices.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn use_slices(slice: &mut[i32]){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `strings`
[INFO] [stdout]  --> src/strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn strings(){
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuples`
[INFO] [stdout]  --> src/tuples.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn tuples(){
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_and_product`
[INFO] [stdout]   --> src/tuples.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn sum_and_product(x:i32, y: i32) -> (i32,i32){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `increase_value`
[INFO] [stdout]  --> src/func.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn increase_value(x: &mut i32){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `functions`
[INFO] [stdout]   --> src/func.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn functions(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/meth.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Point{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]  --> src/meth.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Line{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/meth.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn len(&self) -> f64{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `methods`
[INFO] [stdout]   --> src/meth.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn methods(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `closures`
[INFO] [stdout]  --> src/clos.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn closures(){
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_even`
[INFO] [stdout]  --> src/high.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_even(x: u32) ->bool{
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `higher_order_functions`
[INFO] [stdout]  --> src/high.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn higher_order_functions(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `traits`
[INFO] [stdout]   --> src/trt.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn traits(){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `Z`
[INFO] [stdout]   --> src/main.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |  static mut Z:i32 = 42;
[INFO] [stdout]    |  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |  fn data_types(){
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `operators`
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn operators(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `for_loop`
[INFO] [stdout]    --> src/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn for_loop(){
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_statement`
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn match_statement(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `options`
[INFO] [stdout]    --> src/main.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn options(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `array`
[INFO] [stdout]    --> src/main.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn array(){
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vectors`
[INFO] [stdout]    --> src/main.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn vectors(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.54s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr] warning: unused manifest key: bin.0.rand
[INFO] [stderr]     Checking scratchpad v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/sh.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `origin`
[INFO] [stdout]   --> src/sh.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn origin() -> Point{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stack_and_heap`
[INFO] [stdout]   --> src/sh.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn stack_and_heap(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Color`
[INFO] [stdout]  --> src/color.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Color{
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]   --> src/color.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn enums(){
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices_main`
[INFO] [stdout]  --> src/slices.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn slices_main(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `use_slices`
[INFO] [stdout]   --> src/slices.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn use_slices(slice: &mut[i32]){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `strings`
[INFO] [stdout]  --> src/strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn strings(){
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuples`
[INFO] [stdout]  --> src/tuples.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn tuples(){
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_and_product`
[INFO] [stdout]   --> src/tuples.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn sum_and_product(x:i32, y: i32) -> (i32,i32){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `increase_value`
[INFO] [stdout]  --> src/func.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn increase_value(x: &mut i32){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `functions`
[INFO] [stdout]   --> src/func.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn functions(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/meth.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Point{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]  --> src/meth.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Line{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/meth.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn len(&self) -> f64{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `methods`
[INFO] [stdout]   --> src/meth.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn methods(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `closures`
[INFO] [stdout]  --> src/clos.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn closures(){
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_even`
[INFO] [stdout]  --> src/high.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_even(x: u32) ->bool{
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `higher_order_functions`
[INFO] [stdout]  --> src/high.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn higher_order_functions(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `traits`
[INFO] [stdout]   --> src/trt.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn traits(){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `Z`
[INFO] [stdout]   --> src/main.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |  static mut Z:i32 = 42;
[INFO] [stdout]    |  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |  fn data_types(){
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `operators`
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn operators(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `for_loop`
[INFO] [stdout]    --> src/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn for_loop(){
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_statement`
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn match_statement(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `options`
[INFO] [stdout]    --> src/main.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn options(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `array`
[INFO] [stdout]    --> src/main.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn array(){
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vectors`
[INFO] [stdout]    --> src/main.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn vectors(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/sh.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Point {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `origin`
[INFO] [stdout]   --> src/sh.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn origin() -> Point{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `stack_and_heap`
[INFO] [stdout]   --> src/sh.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn stack_and_heap(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Color`
[INFO] [stdout]  --> src/color.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | enum Color{
[INFO] [stdout]   |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `enums`
[INFO] [stdout]   --> src/color.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn enums(){
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slices_main`
[INFO] [stdout]  --> src/slices.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn slices_main(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `use_slices`
[INFO] [stdout]   --> src/slices.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn use_slices(slice: &mut[i32]){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `strings`
[INFO] [stdout]  --> src/strings.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn strings(){
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuples`
[INFO] [stdout]  --> src/tuples.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn tuples(){
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_and_product`
[INFO] [stdout]   --> src/tuples.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn sum_and_product(x:i32, y: i32) -> (i32,i32){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `increase_value`
[INFO] [stdout]  --> src/func.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn increase_value(x: &mut i32){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `functions`
[INFO] [stdout]   --> src/func.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn functions(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Point`
[INFO] [stdout]  --> src/meth.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Point{
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Line`
[INFO] [stdout]  --> src/meth.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Line{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/meth.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn len(&self) -> f64{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `methods`
[INFO] [stdout]   --> src/meth.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn methods(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `closures`
[INFO] [stdout]  --> src/clos.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn closures(){
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_even`
[INFO] [stdout]  --> src/high.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_even(x: u32) ->bool{
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `higher_order_functions`
[INFO] [stdout]  --> src/high.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn higher_order_functions(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `traits`
[INFO] [stdout]   --> src/trt.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn traits(){
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `Z`
[INFO] [stdout]   --> src/main.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |  static mut Z:i32 = 42;
[INFO] [stdout]    |  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `data_types`
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |  fn data_types(){
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `operators`
[INFO] [stdout]   --> src/main.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn operators(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `for_loop`
[INFO] [stdout]    --> src/main.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn for_loop(){
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_statement`
[INFO] [stdout]    --> src/main.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn match_statement(){
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `options`
[INFO] [stdout]    --> src/main.rs:137:4
[INFO] [stdout]     |
[INFO] [stdout] 137 | fn options(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `array`
[INFO] [stdout]    --> src/main.rs:156:4
[INFO] [stdout]     |
[INFO] [stdout] 156 | fn array(){
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vectors`
[INFO] [stdout]    --> src/main.rs:185:4
[INFO] [stdout]     |
[INFO] [stdout] 185 | fn vectors(){
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "f92f8f9a65cde5ef7b9c5a6647d53d07d30950f395ed2480ff4368c9ee545ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92f8f9a65cde5ef7b9c5a6647d53d07d30950f395ed2480ff4368c9ee545ab2", kill_on_drop: false }`
[INFO] [stdout] f92f8f9a65cde5ef7b9c5a6647d53d07d30950f395ed2480ff4368c9ee545ab2