[INFO] cloning repository https://github.com/AhsanTipu/Rust-Chapter-8-Vectors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AhsanTipu/Rust-Chapter-8-Vectors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhsanTipu%2FRust-Chapter-8-Vectors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhsanTipu%2FRust-Chapter-8-Vectors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c65127ed615bd1b572bebafecb015c131ad24eb9
[INFO] testing AhsanTipu/Rust-Chapter-8-Vectors against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhsanTipu%2FRust-Chapter-8-Vectors" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AhsanTipu/Rust-Chapter-8-Vectors on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AhsanTipu/Rust-Chapter-8-Vectors
[INFO] finished tweaking git repo https://github.com/AhsanTipu/Rust-Chapter-8-Vectors
[INFO] tweaked toml for git repo https://github.com/AhsanTipu/Rust-Chapter-8-Vectors written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/AhsanTipu/Rust-Chapter-8-Vectors already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 212975be33a2f3040aa0a0ec51760f036c4dffdb6dd979b74a591c3f8075d926
[INFO] running `Command { std: "docker" "start" "-a" "212975be33a2f3040aa0a0ec51760f036c4dffdb6dd979b74a591c3f8075d926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "212975be33a2f3040aa0a0ec51760f036c4dffdb6dd979b74a591c3f8075d926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "212975be33a2f3040aa0a0ec51760f036c4dffdb6dd979b74a591c3f8075d926", kill_on_drop: false }`
[INFO] [stdout] 212975be33a2f3040aa0a0ec51760f036c4dffdb6dd979b74a591c3f8075d926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b443e1e73dca08e9cdf928086cd2386cc1bdca5ca05f988e140a2cca8a654dda
[INFO] running `Command { std: "docker" "start" "-a" "b443e1e73dca08e9cdf928086cd2386cc1bdca5ca05f988e140a2cca8a654dda", kill_on_drop: false }`
[INFO] [stderr]    Compiling practise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `practise`
[INFO] [stdout]    --> src/main.rs:202:5
[INFO] [stdout]     |
[INFO] [stdout] 202 | // }
[INFO] [stdout]     |     ^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `practise` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b443e1e73dca08e9cdf928086cd2386cc1bdca5ca05f988e140a2cca8a654dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b443e1e73dca08e9cdf928086cd2386cc1bdca5ca05f988e140a2cca8a654dda", kill_on_drop: false }`
[INFO] [stdout] b443e1e73dca08e9cdf928086cd2386cc1bdca5ca05f988e140a2cca8a654dda