[INFO] cloning repository https://github.com/aritlhq/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aritlhq/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faritlhq%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faritlhq%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aedde5b4ce66d7feff29a4aae4ffefb1e41d3eae
[INFO] checking aritlhq/learn-rust against master#a932eb36f8adf6c8cdfc450f063943da3112d621 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faritlhq%2Flearn-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aritlhq/learn-rust on toolchain a932eb36f8adf6c8cdfc450f063943da3112d621
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aritlhq/learn-rust
[INFO] finished tweaking git repo https://github.com/aritlhq/learn-rust
[INFO] tweaked toml for git repo https://github.com/aritlhq/learn-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aritlhq/learn-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" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5445c4034f55fca95a647f40a7331101dbabfa15264cbe64cb4c473c24b75f7e
[INFO] running `Command { std: "docker" "start" "-a" "5445c4034f55fca95a647f40a7331101dbabfa15264cbe64cb4c473c24b75f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5445c4034f55fca95a647f40a7331101dbabfa15264cbe64cb4c473c24b75f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5445c4034f55fca95a647f40a7331101dbabfa15264cbe64cb4c473c24b75f7e", kill_on_drop: false }`
[INFO] [stdout] 5445c4034f55fca95a647f40a7331101dbabfa15264cbe64cb4c473c24b75f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55a55189b772c26a8ba89a03bde2985169ddb294de05bb1d27ab896ebebe9a8b
[INFO] running `Command { std: "docker" "start" "-a" "55a55189b772c26a8ba89a03bde2985169ddb294de05bb1d27ab896ebebe9a8b", kill_on_drop: false }`
[INFO] [stderr]     Checking learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `unit` is never used
[INFO] [stdout]    --> src/main.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn unit() { // This is unit type
[INFO] [stdout]     |    ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAXIMUMMM` is never used
[INFO] [stdout]    --> src/main.rs:224:7
[INFO] [stdout]     |
[INFO] [stdout] 224 | const MAXIMUMMM: i32 = 100;
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MINIMUM` is never used
[INFO] [stdout]    --> src/main.rs:225:7
[INFO] [stdout]     |
[INFO] [stdout] 225 | const MINIMUM: i32 = 0;
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_a` is never used
[INFO] [stdout]    --> src/main.rs:255:4
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn function_a() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_b` is never used
[INFO] [stdout]    --> src/main.rs:262:4
[INFO] [stdout]     |
[INFO] [stdout] 262 | fn function_b() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `say_goodbye` is never used
[INFO] [stdout]    --> src/main.rs:590:4
[INFO] [stdout]     |
[INFO] [stdout] 590 | fn say_goodbye(first_name:&str, last_name:&str) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial_loop` is never used
[INFO] [stdout]    --> src/main.rs:600:4
[INFO] [stdout]     |
[INFO] [stdout] 600 | fn factorial_loop(n:i32) -> i32{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_text` is never used
[INFO] [stdout]    --> src/main.rs:627:4
[INFO] [stdout]     |
[INFO] [stdout] 627 | fn print_text(value: String, times: u32){
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `factorial_recursive` is never used
[INFO] [stdout]    --> src/main.rs:642:4
[INFO] [stdout]     |
[INFO] [stdout] 642 | fn factorial_recursive(n: u32) -> u32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "55a55189b772c26a8ba89a03bde2985169ddb294de05bb1d27ab896ebebe9a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55a55189b772c26a8ba89a03bde2985169ddb294de05bb1d27ab896ebebe9a8b", kill_on_drop: false }`
[INFO] [stdout] 55a55189b772c26a8ba89a03bde2985169ddb294de05bb1d27ab896ebebe9a8b