[INFO] updating cached repository https://github.com/thomshib/RustPlayground
[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] a1fddb1f0d9dcd6ae92b9502881a89dcab99c1c8
[INFO] testing thomshib/RustPlayground against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomshib%2FRustPlayground" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomshib/RustPlayground on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-13/source/Cargo.toml
[INFO] crate git repo https://github.com/thomshib/RustPlayground already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: unused manifest key: bin.0.rand
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2020-06-03" "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] ac7acd7bd83cdf4ffbe86f83520ab497991df7ca511778c25de018e0201bbe14
[INFO] running `"docker" "start" "-a" "ac7acd7bd83cdf4ffbe86f83520ab497991df7ca511778c25de018e0201bbe14"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling scratchpad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:130:10
[INFO] [stderr]     |
[INFO] [stderr] 130 |         1...999 => "Unknown",
[INFO] [stderr]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/main.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/sh.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Point {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `origin`
[INFO] [stderr]   --> src/sh.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn origin() -> Point{
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stack_and_heap`
[INFO] [stderr]   --> src/sh.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn stack_and_heap(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]  --> src/color.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Color{
[INFO] [stderr]   |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]   --> src/color.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn enums(){
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slices_main`
[INFO] [stderr]  --> src/slices.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn slices_main(){
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `use_slices`
[INFO] [stderr]   --> src/slices.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn use_slices(slice: &mut[i32]){
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `strings`
[INFO] [stderr]  --> src/strings.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn strings(){
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuples`
[INFO] [stderr]  --> src/tuples.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn tuples(){
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_and_product`
[INFO] [stderr]   --> src/tuples.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn sum_and_product(x:i32, y: i32) -> (i32,i32){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `increase_value`
[INFO] [stderr]  --> src/func.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn increase_value(x: &mut i32){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions`
[INFO] [stderr]   --> src/func.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn functions(){
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/meth.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Point{
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]  --> src/meth.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Line{
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]   --> src/meth.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn len(&self) -> f64{
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `methods`
[INFO] [stderr]   --> src/meth.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn methods(){
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `closures`
[INFO] [stderr]  --> src/clos.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn closures(){
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_even`
[INFO] [stderr]  --> src/high.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn is_even(x: u32) ->bool{
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `higher_order_functions`
[INFO] [stderr]  --> src/high.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn higher_order_functions(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `traits`
[INFO] [stderr]   --> src/trt.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn traits(){
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `Z`
[INFO] [stderr]   --> src/main.rs:16:2
[INFO] [stderr]    |
[INFO] [stderr] 16 |  static mut Z:i32 = 42;
[INFO] [stderr]    |  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `data_types`
[INFO] [stderr]   --> src/main.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |  fn data_types(){
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `operators`
[INFO] [stderr]   --> src/main.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn operators(){
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `for_loop`
[INFO] [stderr]    --> src/main.rs:116:4
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn for_loop(){
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_statement`
[INFO] [stderr]    --> src/main.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn match_statement(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `options`
[INFO] [stderr]    --> src/main.rs:137:4
[INFO] [stderr]     |
[INFO] [stderr] 137 | fn options(){
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `array`
[INFO] [stderr]    --> src/main.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn array(){
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vectors`
[INFO] [stderr]    --> src/main.rs:185:4
[INFO] [stderr]     |
[INFO] [stderr] 185 | fn vectors(){
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.02s
[INFO] running `"docker" "inspect" "ac7acd7bd83cdf4ffbe86f83520ab497991df7ca511778c25de018e0201bbe14"`
[INFO] running `"docker" "rm" "-f" "ac7acd7bd83cdf4ffbe86f83520ab497991df7ca511778c25de018e0201bbe14"`
[INFO] [stdout] ac7acd7bd83cdf4ffbe86f83520ab497991df7ca511778c25de018e0201bbe14
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stdout] ba76c57c271ad99aa862b1da55ff5971a45508d162298b06f0e778c661584fe1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ba76c57c271ad99aa862b1da55ff5971a45508d162298b06f0e778c661584fe1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused manifest key: bin.0.rand
[INFO] [stderr]    Compiling scratchpad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:130:10
[INFO] [stderr]     |
[INFO] [stderr] 130 |         1...999 => "Unknown",
[INFO] [stderr]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/main.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/sh.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Point {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `origin`
[INFO] [stderr]   --> src/sh.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn origin() -> Point{
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stack_and_heap`
[INFO] [stderr]   --> src/sh.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn stack_and_heap(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]  --> src/color.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Color{
[INFO] [stderr]   |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]   --> src/color.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn enums(){
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slices_main`
[INFO] [stderr]  --> src/slices.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn slices_main(){
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `use_slices`
[INFO] [stderr]   --> src/slices.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn use_slices(slice: &mut[i32]){
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `strings`
[INFO] [stderr]  --> src/strings.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn strings(){
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuples`
[INFO] [stderr]  --> src/tuples.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn tuples(){
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_and_product`
[INFO] [stderr]   --> src/tuples.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn sum_and_product(x:i32, y: i32) -> (i32,i32){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `increase_value`
[INFO] [stderr]  --> src/func.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn increase_value(x: &mut i32){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions`
[INFO] [stderr]   --> src/func.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn functions(){
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/meth.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Point{
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]  --> src/meth.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Line{
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]   --> src/meth.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn len(&self) -> f64{
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `methods`
[INFO] [stderr]   --> src/meth.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn methods(){
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `closures`
[INFO] [stderr]  --> src/clos.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn closures(){
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_even`
[INFO] [stderr]  --> src/high.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn is_even(x: u32) ->bool{
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `higher_order_functions`
[INFO] [stderr]  --> src/high.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn higher_order_functions(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `traits`
[INFO] [stderr]   --> src/trt.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn traits(){
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `Z`
[INFO] [stderr]   --> src/main.rs:16:2
[INFO] [stderr]    |
[INFO] [stderr] 16 |  static mut Z:i32 = 42;
[INFO] [stderr]    |  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `data_types`
[INFO] [stderr]   --> src/main.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |  fn data_types(){
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `operators`
[INFO] [stderr]   --> src/main.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn operators(){
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `for_loop`
[INFO] [stderr]    --> src/main.rs:116:4
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn for_loop(){
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_statement`
[INFO] [stderr]    --> src/main.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn match_statement(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `options`
[INFO] [stderr]    --> src/main.rs:137:4
[INFO] [stderr]     |
[INFO] [stderr] 137 | fn options(){
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `array`
[INFO] [stderr]    --> src/main.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn array(){
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vectors`
[INFO] [stderr]    --> src/main.rs:185:4
[INFO] [stderr]     |
[INFO] [stderr] 185 | fn vectors(){
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "ba76c57c271ad99aa862b1da55ff5971a45508d162298b06f0e778c661584fe1"`
[INFO] running `"docker" "rm" "-f" "ba76c57c271ad99aa862b1da55ff5971a45508d162298b06f0e778c661584fe1"`
[INFO] [stdout] ba76c57c271ad99aa862b1da55ff5971a45508d162298b06f0e778c661584fe1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2020-06-03" "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] 45c14096b29be868d7318f1b2f358e764c233cba64cbddf9ffbd41140d5d46d3
[INFO] running `"docker" "start" "-a" "45c14096b29be868d7318f1b2f358e764c233cba64cbddf9ffbd41140d5d46d3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused manifest key: bin.0.rand
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/main.rs:130:10
[INFO] [stderr]     |
[INFO] [stderr] 130 |         1...999 => "Unknown",
[INFO] [stderr]     |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]    --> src/main.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |     let mut rng = rand::thread_rng();
[INFO] [stderr]     |         ----^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/sh.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Point {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `origin`
[INFO] [stderr]   --> src/sh.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn origin() -> Point{
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `stack_and_heap`
[INFO] [stderr]   --> src/sh.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn stack_and_heap(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Color`
[INFO] [stderr]  --> src/color.rs:3:6
[INFO] [stderr]   |
[INFO] [stderr] 3 | enum Color{
[INFO] [stderr]   |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `enums`
[INFO] [stderr]   --> src/color.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn enums(){
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slices_main`
[INFO] [stderr]  --> src/slices.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn slices_main(){
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `use_slices`
[INFO] [stderr]   --> src/slices.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn use_slices(slice: &mut[i32]){
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `strings`
[INFO] [stderr]  --> src/strings.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn strings(){
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuples`
[INFO] [stderr]  --> src/tuples.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn tuples(){
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sum_and_product`
[INFO] [stderr]   --> src/tuples.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn sum_and_product(x:i32, y: i32) -> (i32,i32){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `increase_value`
[INFO] [stderr]  --> src/func.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn increase_value(x: &mut i32){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `functions`
[INFO] [stderr]   --> src/func.rs:11:8
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn functions(){
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Point`
[INFO] [stderr]  --> src/meth.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Point{
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Line`
[INFO] [stderr]  --> src/meth.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Line{
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]   --> src/meth.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn len(&self) -> f64{
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `methods`
[INFO] [stderr]   --> src/meth.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn methods(){
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `closures`
[INFO] [stderr]  --> src/clos.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn closures(){
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_even`
[INFO] [stderr]  --> src/high.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn is_even(x: u32) ->bool{
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `higher_order_functions`
[INFO] [stderr]  --> src/high.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn higher_order_functions(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `traits`
[INFO] [stderr]   --> src/trt.rs:58:8
[INFO] [stderr]    |
[INFO] [stderr] 58 | pub fn traits(){
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static is never used: `Z`
[INFO] [stderr]   --> src/main.rs:16:2
[INFO] [stderr]    |
[INFO] [stderr] 16 |  static mut Z:i32 = 42;
[INFO] [stderr]    |  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `data_types`
[INFO] [stderr]   --> src/main.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |  fn data_types(){
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `operators`
[INFO] [stderr]   --> src/main.rs:96:4
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn operators(){
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `for_loop`
[INFO] [stderr]    --> src/main.rs:116:4
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn for_loop(){
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_statement`
[INFO] [stderr]    --> src/main.rs:123:4
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn match_statement(){
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `options`
[INFO] [stderr]    --> src/main.rs:137:4
[INFO] [stderr]     |
[INFO] [stderr] 137 | fn options(){
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `array`
[INFO] [stderr]    --> src/main.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn array(){
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `vectors`
[INFO] [stderr]    --> src/main.rs:185:4
[INFO] [stderr]     |
[INFO] [stderr] 185 | fn vectors(){
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/scratchpad-f6584883e626aa40
[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" "45c14096b29be868d7318f1b2f358e764c233cba64cbddf9ffbd41140d5d46d3"`
[INFO] running `"docker" "rm" "-f" "45c14096b29be868d7318f1b2f358e764c233cba64cbddf9ffbd41140d5d46d3"`
[INFO] [stdout] 45c14096b29be868d7318f1b2f358e764c233cba64cbddf9ffbd41140d5d46d3