[INFO] cloning repository https://github.com/Ahmed9190/kata_coding_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ahmed9190/kata_coding_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmed9190%2Fkata_coding_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmed9190%2Fkata_coding_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5965c50d98b4d96b8d38bc03c9705dc344a2a2a3
[INFO] checking Ahmed9190/kata_coding_rust against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmed9190%2Fkata_coding_rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ahmed9190/kata_coding_rust on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ahmed9190/kata_coding_rust
[INFO] finished tweaking git repo https://github.com/Ahmed9190/kata_coding_rust
[INFO] tweaked toml for git repo https://github.com/Ahmed9190/kata_coding_rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ahmed9190/kata_coding_rust 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" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f508b404b94ccf99abe74b0f2673216e61eb1fe5152f289ddb5df1c461fc77f
[INFO] running `Command { std: "docker" "start" "-a" "3f508b404b94ccf99abe74b0f2673216e61eb1fe5152f289ddb5df1c461fc77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f508b404b94ccf99abe74b0f2673216e61eb1fe5152f289ddb5df1c461fc77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f508b404b94ccf99abe74b0f2673216e61eb1fe5152f289ddb5df1c461fc77f", kill_on_drop: false }`
[INFO] [stdout] 3f508b404b94ccf99abe74b0f2673216e61eb1fe5152f289ddb5df1c461fc77f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8ede88e60bf3be321cbf5c20744269a169c54bd193c818b55dd9373196f8460
[INFO] running `Command { std: "docker" "start" "-a" "b8ede88e60bf3be321cbf5c20744269a169c54bd193c818b55dd9373196f8460", kill_on_drop: false }`
[INFO] [stderr]     Checking kata_coding_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `add_two_numbers` is never used
[INFO] [stdout]  --> src/problems/_1_add_two_numbers.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn add_two_numbers(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reverse_word` is never used
[INFO] [stdout]  --> src/problems/_2_reverse_words.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn reverse_word(text: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `remove_spaces` and `to_alphanumeric_characters` are never used
[INFO] [stdout]  --> src/problems/_3_is_palindrome.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait StringX {
[INFO] [stdout]   |           ------- methods in this trait
[INFO] [stdout] 2 |     fn remove_spaces(&self) -> String;
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 3 |
[INFO] [stdout] 4 |     fn to_alphanumeric_characters(&self) -> Vec<char>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_palindrome` is never used
[INFO] [stdout]   --> src/problems/_3_is_palindrome.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn is_palindrome(text: String) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizz_buzz` is never used
[INFO] [stdout]  --> src/problems/_4_fizz_buzz.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn fizz_buzz(number: i32) -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizz_buzz` is never used
[INFO] [stdout]   --> src/problems/_5_indexed_fizz_buzz.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn fizz_buzz(number: i32) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fizz_buzz_decider` is never used
[INFO] [stdout]   --> src/problems/_5_indexed_fizz_buzz.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn fizz_buzz_decider(number: i32) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "b8ede88e60bf3be321cbf5c20744269a169c54bd193c818b55dd9373196f8460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ede88e60bf3be321cbf5c20744269a169c54bd193c818b55dd9373196f8460", kill_on_drop: false }`
[INFO] [stdout] b8ede88e60bf3be321cbf5c20744269a169c54bd193c818b55dd9373196f8460
