[INFO] cloning repository https://github.com/ayushsoni1010/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/ayushsoni1010/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayushsoni1010%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayushsoni1010%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f48597e002a7a056d66e3cf4e8f87a6b70a94b52
[INFO] checking ayushsoni1010/learn-rust against master#818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc for pr-156114-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayushsoni1010%2Flearn-rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ayushsoni1010/learn-rust
[INFO] finished tweaking git repo https://github.com/ayushsoni1010/learn-rust
[INFO] tweaked toml for git repo https://github.com/ayushsoni1010/learn-rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ayushsoni1010/learn-rust on toolchain 818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ayushsoni1010/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" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 396255deb14cbb220a78a28d76ce8ba14258716aa0520b870c646878fea32bfd
[INFO] running `Command { std: "docker" "start" "-a" "396255deb14cbb220a78a28d76ce8ba14258716aa0520b870c646878fea32bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "396255deb14cbb220a78a28d76ce8ba14258716aa0520b870c646878fea32bfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "396255deb14cbb220a78a28d76ce8ba14258716aa0520b870c646878fea32bfd", kill_on_drop: false }`
[INFO] [stdout] 396255deb14cbb220a78a28d76ce8ba14258716aa0520b870c646878fea32bfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ab6b026b2c9f364f6363a15eff9d39b86a709bd03f02fb49aab3ffce831d7b7
[INFO] running `Command { std: "docker" "start" "-a" "0ab6b026b2c9f364f6363a15eff9d39b86a709bd03f02fb49aab3ffce831d7b7", kill_on_drop: false }`
[INFO] [stderr]     Checking learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/types.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let x = 1;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/types.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let x = 1;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/types.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let y = 2.5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/types.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let y = 2.5;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/types.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let z: i64 = 23434243234;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/types.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let z: i64 = 23434243234;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "0ab6b026b2c9f364f6363a15eff9d39b86a709bd03f02fb49aab3ffce831d7b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab6b026b2c9f364f6363a15eff9d39b86a709bd03f02fb49aab3ffce831d7b7", kill_on_drop: false }`
[INFO] [stdout] 0ab6b026b2c9f364f6363a15eff9d39b86a709bd03f02fb49aab3ffce831d7b7