[INFO] cloning repository https://github.com/aarthiKarthik/Rust-Basics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aarthiKarthik/Rust-Basics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaarthiKarthik%2FRust-Basics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaarthiKarthik%2FRust-Basics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60ffe8aa9d5a7b66673d2b289c477219861c63c0
[INFO] testing aarthiKarthik/Rust-Basics against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaarthiKarthik%2FRust-Basics" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aarthiKarthik/Rust-Basics on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aarthiKarthik/Rust-Basics
[INFO] finished tweaking git repo https://github.com/aarthiKarthik/Rust-Basics
[INFO] tweaked toml for git repo https://github.com/aarthiKarthik/Rust-Basics written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/aarthiKarthik/Rust-Basics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a847502db8cf76b6e4c8b2c667f2e2a20ae214051bdf4826fe31c859d4cf8e58
[INFO] running `Command { std: "docker" "start" "-a" "a847502db8cf76b6e4c8b2c667f2e2a20ae214051bdf4826fe31c859d4cf8e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a847502db8cf76b6e4c8b2c667f2e2a20ae214051bdf4826fe31c859d4cf8e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a847502db8cf76b6e4c8b2c667f2e2a20ae214051bdf4826fe31c859d4cf8e58", kill_on_drop: false }`
[INFO] [stdout] a847502db8cf76b6e4c8b2c667f2e2a20ae214051bdf4826fe31c859d4cf8e58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ef6c41ab9b90f2989e41cc22f7cb21e5032bac76ad0dc5eca0ad814ab4ca4c5
[INFO] running `Command { std: "docker" "start" "-a" "5ef6c41ab9b90f2989e41cc22f7cb21e5032bac76ad0dc5eca0ad814ab4ca4c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `unused_variable`
[INFO] [stdout]  --> src/main.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![allow(unused_variable)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:88:6
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let a = 123;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ef6c41ab9b90f2989e41cc22f7cb21e5032bac76ad0dc5eca0ad814ab4ca4c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ef6c41ab9b90f2989e41cc22f7cb21e5032bac76ad0dc5eca0ad814ab4ca4c5", kill_on_drop: false }`
[INFO] [stdout] 5ef6c41ab9b90f2989e41cc22f7cb21e5032bac76ad0dc5eca0ad814ab4ca4c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aab2139031db397ddf0e18466a98a15bfa1aaf4225d1dd824555140df495b056
[INFO] running `Command { std: "docker" "start" "-a" "aab2139031db397ddf0e18466a98a15bfa1aaf4225d1dd824555140df495b056", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `unused_variable`
[INFO] [stdout]  --> src/main.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![allow(unused_variable)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/main.rs:88:6
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let a = 123;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "aab2139031db397ddf0e18466a98a15bfa1aaf4225d1dd824555140df495b056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aab2139031db397ddf0e18466a98a15bfa1aaf4225d1dd824555140df495b056", kill_on_drop: false }`
[INFO] [stdout] aab2139031db397ddf0e18466a98a15bfa1aaf4225d1dd824555140df495b056
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 41bd0c9b0a17ffe91ee5a87fc657286d7b5f219705cafe88872a209be65c411a
[INFO] running `Command { std: "docker" "start" "-a" "41bd0c9b0a17ffe91ee5a87fc657286d7b5f219705cafe88872a209be65c411a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 2 | #![allow(unused_variable)]
[INFO] [stdout] 
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:88:6
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let a = 123;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world-fddd687b1ea04a95)
[INFO] running `Command { std: "docker" "inspect" "41bd0c9b0a17ffe91ee5a87fc657286d7b5f219705cafe88872a209be65c411a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41bd0c9b0a17ffe91ee5a87fc657286d7b5f219705cafe88872a209be65c411a", kill_on_drop: false }`
[INFO] [stdout] 41bd0c9b0a17ffe91ee5a87fc657286d7b5f219705cafe88872a209be65c411a