[INFO] cloning repository https://github.com/vishusandy/proman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vishusandy/proman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvishusandy%2Fproman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvishusandy%2Fproman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2323e6d619e013cd652d0c3cc6b109d6bba3f533
[INFO] checking vishusandy/proman against master#2ad5292aea6328113b55968b4322528d48261316 for pr-80243
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvishusandy%2Fproman" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vishusandy/proman on toolchain 2ad5292aea6328113b55968b4322528d48261316
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vishusandy/proman
[INFO] finished tweaking git repo https://github.com/vishusandy/proman
[INFO] tweaked toml for git repo https://github.com/vishusandy/proman written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/vishusandy/proman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp-serde v0.13.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1b8f83c333bf69c60c72bb491fde418739811dff7df48c0dcde273353bf55bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e1b8f83c333bf69c60c72bb491fde418739811dff7df48c0dcde273353bf55bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1b8f83c333bf69c60c72bb491fde418739811dff7df48c0dcde273353bf55bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b8f83c333bf69c60c72bb491fde418739811dff7df48c0dcde273353bf55bc", kill_on_drop: false }`
[INFO] [stdout] e1b8f83c333bf69c60c72bb491fde418739811dff7df48c0dcde273353bf55bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+2ad5292aea6328113b55968b4322528d48261316" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c045781fade1e210f4fe9d8f98b8ea7e41db99084eb9afc9653f8987e281ad61
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c045781fade1e210f4fe9d8f98b8ea7e41db99084eb9afc9653f8987e281ad61", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking serde v1.0.14
[INFO] [stderr]    Compiling proman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking itoa v0.3.3
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking setenv v0.1.1
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking scan_dir v0.3.3
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stdout] error[E0601]: `main` function not found in crate `build_script_build`
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider adding a `main` function to `build.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]     Checking thread_local v0.3.4
[INFO] [stderr] error: could not compile `proman`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c045781fade1e210f4fe9d8f98b8ea7e41db99084eb9afc9653f8987e281ad61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c045781fade1e210f4fe9d8f98b8ea7e41db99084eb9afc9653f8987e281ad61", kill_on_drop: false }`
[INFO] [stdout] c045781fade1e210f4fe9d8f98b8ea7e41db99084eb9afc9653f8987e281ad61