[INFO] cloning repository https://github.com/tigoni/rustler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tigoni/rustler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftigoni%2Frustler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftigoni%2Frustler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9771b9f4890022d441b08ab5627614176e44fcc7
[INFO] testing tigoni/rustler against 1.85.0 for beta-1.86-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftigoni%2Frustler" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tigoni/rustler on toolchain 1.85.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tigoni/rustler
[INFO] finished tweaking git repo https://github.com/tigoni/rustler
[INFO] tweaked toml for git repo https://github.com/tigoni/rustler written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tigoni/rustler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7564ccaac43d38c21504a0e55d5cdd19395870b4c77aaa5401f10616df2381ee
[INFO] running `Command { std: "docker" "start" "-a" "7564ccaac43d38c21504a0e55d5cdd19395870b4c77aaa5401f10616df2381ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7564ccaac43d38c21504a0e55d5cdd19395870b4c77aaa5401f10616df2381ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7564ccaac43d38c21504a0e55d5cdd19395870b4c77aaa5401f10616df2381ee", kill_on_drop: false }`
[INFO] [stdout] 7564ccaac43d38c21504a0e55d5cdd19395870b4c77aaa5401f10616df2381ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d5e18d80cd76e6c8d7aea96c10e74829e6aed55ac72bb0e09619b5272778b9b
[INFO] running `Command { std: "docker" "start" "-a" "9d5e18d80cd76e6c8d7aea96c10e74829e6aed55ac72bb0e09619b5272778b9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling basics2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::basics::variables::test_variables`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::basics::variables::test_variables;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::control::functions::test_functions`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::control::functions::test_functions;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ownership::ownership::test_ownership`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ownership::ownership::test_ownership;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/control/mod.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |           let output: i32 = loop {
[INFO] [stdout]    |  ___________________________-
[INFO] [stdout] 90 | |             if counter <= 10 {
[INFO] [stdout] 91 | |                 counter += 1;
[INFO] [stdout] ...  |
[INFO] [stdout] 96 | |         };
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 97 |           println!("Result is: {output}");
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/control/mod.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let mut another_counter = 0;
[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: function `test_variables` is never used
[INFO] [stdout]  --> src/basics/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub fn test_variables() -> () {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_func` is never used
[INFO] [stdout]   --> src/control/mod.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn simple_func() -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_functions` is never used
[INFO] [stdout]   --> src/control/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn test_functions() -> () {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_without_ret` is never used
[INFO] [stdout]   --> src/control/mod.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn func_without_ret(x: i32, label: char) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_with_ret` is never used
[INFO] [stdout]   --> src/control/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn func_with_ret() -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `comparator` is never used
[INFO] [stdout]   --> src/control/mod.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn comparator(param1: i32, param2: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_check` is never used
[INFO] [stdout]   --> src/control/mod.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn simple_check() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `while_loop` is never used
[INFO] [stdout]    --> src/control/mod.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn while_loop() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_for_me` is never used
[INFO] [stdout]    --> src/control/mod.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn loop_for_me() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_ownership` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn test_ownership() -> () {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn calculate_length(s: &String) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_ownership` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |         fn takes_ownership(some: String) { //'some' comes into scope
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `makes_copy` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn makes_copy(some_int: i32) { //some_int comes into scope
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gives_ownership` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn gives_ownership() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "9d5e18d80cd76e6c8d7aea96c10e74829e6aed55ac72bb0e09619b5272778b9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5e18d80cd76e6c8d7aea96c10e74829e6aed55ac72bb0e09619b5272778b9b", kill_on_drop: false }`
[INFO] [stdout] 9d5e18d80cd76e6c8d7aea96c10e74829e6aed55ac72bb0e09619b5272778b9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7424fd6a66440fd15a14383c3443556fd79efe1b557c6ab385100c7521d0b8d0
[INFO] running `Command { std: "docker" "start" "-a" "7424fd6a66440fd15a14383c3443556fd79efe1b557c6ab385100c7521d0b8d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling basics2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::basics::variables::test_variables`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::basics::variables::test_variables;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::control::functions::test_functions`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::control::functions::test_functions;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ownership::ownership::test_ownership`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ownership::ownership::test_ownership;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/control/mod.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |           let output: i32 = loop {
[INFO] [stdout]    |  ___________________________-
[INFO] [stdout] 90 | |             if counter <= 10 {
[INFO] [stdout] 91 | |                 counter += 1;
[INFO] [stdout] ...  |
[INFO] [stdout] 96 | |         };
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 97 |           println!("Result is: {output}");
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/control/mod.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let mut another_counter = 0;
[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: function `test_variables` is never used
[INFO] [stdout]  --> src/basics/mod.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |     pub fn test_variables() -> () {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_func` is never used
[INFO] [stdout]   --> src/control/mod.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn simple_func() -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_functions` is never used
[INFO] [stdout]   --> src/control/mod.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn test_functions() -> () {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_without_ret` is never used
[INFO] [stdout]   --> src/control/mod.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn func_without_ret(x: i32, label: char) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func_with_ret` is never used
[INFO] [stdout]   --> src/control/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn func_with_ret() -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `comparator` is never used
[INFO] [stdout]   --> src/control/mod.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn comparator(param1: i32, param2: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_check` is never used
[INFO] [stdout]   --> src/control/mod.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn simple_check() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `while_loop` is never used
[INFO] [stdout]    --> src/control/mod.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout] 100 |     fn while_loop() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_for_me` is never used
[INFO] [stdout]    --> src/control/mod.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn loop_for_me() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_ownership` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn test_ownership() -> () {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn calculate_length(s: &String) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_ownership` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |         fn takes_ownership(some: String) { //'some' comes into scope
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `makes_copy` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn makes_copy(some_int: i32) { //some_int comes into scope
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gives_ownership` is never used
[INFO] [stdout]   --> src/ownership/mod.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn gives_ownership() -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "7424fd6a66440fd15a14383c3443556fd79efe1b557c6ab385100c7521d0b8d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7424fd6a66440fd15a14383c3443556fd79efe1b557c6ab385100c7521d0b8d0", kill_on_drop: false }`
[INFO] [stdout] 7424fd6a66440fd15a14383c3443556fd79efe1b557c6ab385100c7521d0b8d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8934686c91c8f7e651db6759b654d69b40442bec9fc86ff42eef01732f773310
[INFO] running `Command { std: "docker" "start" "-a" "8934686c91c8f7e651db6759b654d69b40442bec9fc86ff42eef01732f773310", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::basics::variables::test_variables`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::basics::variables::test_variables;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::control::functions::test_functions`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::control::functions::test_functions;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ownership::ownership::test_ownership`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::ownership::ownership::test_ownership;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/control/mod.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |           let output: i32 = loop {
[INFO] [stderr]    |  ___________________________-
[INFO] [stderr] 90 | |             if counter <= 10 {
[INFO] [stderr] 91 | |                 counter += 1;
[INFO] [stderr] ...  |
[INFO] [stderr] 96 | |         };
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 97 |           println!("Result is: {output}");
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/control/mod.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let mut another_counter = 0;
[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: function `test_variables` is never used
[INFO] [stderr]  --> src/basics/mod.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 |     pub fn test_variables() -> () {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `simple_func` is never used
[INFO] [stderr]   --> src/control/mod.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn simple_func() -> i32 {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_functions` is never used
[INFO] [stderr]   --> src/control/mod.rs:27:12
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn test_functions() -> () {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func_without_ret` is never used
[INFO] [stderr]   --> src/control/mod.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn func_without_ret(x: i32, label: char) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func_with_ret` is never used
[INFO] [stderr]   --> src/control/mod.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn func_with_ret() -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `comparator` is never used
[INFO] [stderr]   --> src/control/mod.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn comparator(param1: i32, param2: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `simple_check` is never used
[INFO] [stderr]   --> src/control/mod.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn simple_check() {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `while_loop` is never used
[INFO] [stderr]    --> src/control/mod.rs:100:8
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn while_loop() {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `loop_for_me` is never used
[INFO] [stderr]    --> src/control/mod.rs:111:8
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn loop_for_me() {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_ownership` is never used
[INFO] [stderr]   --> src/ownership/mod.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn test_ownership() -> () {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_length` is never used
[INFO] [stderr]   --> src/ownership/mod.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn calculate_length(s: &String) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `takes_ownership` is never used
[INFO] [stderr]   --> src/ownership/mod.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |         fn takes_ownership(some: String) { //'some' comes into scope
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `makes_copy` is never used
[INFO] [stderr]   --> src/ownership/mod.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn makes_copy(some_int: i32) { //some_int comes into scope
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gives_ownership` is never used
[INFO] [stderr]   --> src/ownership/mod.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn gives_ownership() -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `basics2` (bin "basics2" test) generated 19 warnings (run `cargo fix --bin "basics2" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/basics2-22ddbf5c9dd61bc8)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8934686c91c8f7e651db6759b654d69b40442bec9fc86ff42eef01732f773310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8934686c91c8f7e651db6759b654d69b40442bec9fc86ff42eef01732f773310", kill_on_drop: false }`
[INFO] [stdout] 8934686c91c8f7e651db6759b654d69b40442bec9fc86ff42eef01732f773310