[INFO] cloning repository https://github.com/lucidscape/libovr-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucidscape/libovr-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucidscape%2Flibovr-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucidscape%2Flibovr-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 861e07423fd4ebca2abc0c3a6b5060c1e3e20b9b
[INFO] documenting lucidscape/libovr-rs against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucidscape%2Flibovr-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucidscape/libovr-rs on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucidscape/libovr-rs
[INFO] finished tweaking git repo https://github.com/lucidscape/libovr-rs
[INFO] tweaked toml for git repo https://github.com/lucidscape/libovr-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/lucidscape/libovr-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3cf5e387f31d186544428a0072f6c79a9c375ecbb3d2bbe8f270e7ce7e231341
[INFO] running `Command { std: "docker" "start" "-a" "3cf5e387f31d186544428a0072f6c79a9c375ecbb3d2bbe8f270e7ce7e231341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cf5e387f31d186544428a0072f6c79a9c375ecbb3d2bbe8f270e7ce7e231341", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf5e387f31d186544428a0072f6c79a9c375ecbb3d2bbe8f270e7ce7e231341", kill_on_drop: false }`
[INFO] [stdout] 3cf5e387f31d186544428a0072f6c79a9c375ecbb3d2bbe8f270e7ce7e231341
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 691c0db7717d6511e811ef819a3382df8f1809c6ff021397e6f2a0f3c87a24d8
[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" "691c0db7717d6511e811ef819a3382df8f1809c6ff021397e6f2a0f3c87a24d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libovr v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `build_script_build`
[INFO] [stdout]  --> build.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #[cfg(target_os="windows")]
[INFO] [stdout] 2 | | fn main() {
[INFO] [stdout] 3 | |     println!("cargo:rustc-link-search={}\\lib", env!("CARGO_MANIFEST_DIR"));
[INFO] [stdout] 4 | | }
[INFO] [stdout]   | |_^ 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] error: could not compile `libovr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "691c0db7717d6511e811ef819a3382df8f1809c6ff021397e6f2a0f3c87a24d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "691c0db7717d6511e811ef819a3382df8f1809c6ff021397e6f2a0f3c87a24d8", kill_on_drop: false }`
[INFO] [stdout] 691c0db7717d6511e811ef819a3382df8f1809c6ff021397e6f2a0f3c87a24d8