[INFO] fetching crate libovr 0.1.3...
[INFO] checking libovr-0.1.3 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate libovr 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libovr 0.1.3 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libovr 0.1.3
[INFO] finished tweaking crates.io crate libovr 0.1.3
[INFO] tweaked toml for crates.io crate libovr 0.1.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9eccb6fd58d9bdee300d7fe9254765270a6addb27715a1e48385215f3c80df3
[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" "b9eccb6fd58d9bdee300d7fe9254765270a6addb27715a1e48385215f3c80df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9eccb6fd58d9bdee300d7fe9254765270a6addb27715a1e48385215f3c80df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9eccb6fd58d9bdee300d7fe9254765270a6addb27715a1e48385215f3c80df3", kill_on_drop: false }`
[INFO] [stdout] b9eccb6fd58d9bdee300d7fe9254765270a6addb27715a1e48385215f3c80df3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 03640bee0ce22696a5a7f5758e4707b0b374ee52015c42f938128885196ce841
[INFO] running `Command { std: "docker" "start" "-a" "03640bee0ce22696a5a7f5758e4707b0b374ee52015c42f938128885196ce841", 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" "03640bee0ce22696a5a7f5758e4707b0b374ee52015c42f938128885196ce841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03640bee0ce22696a5a7f5758e4707b0b374ee52015c42f938128885196ce841", kill_on_drop: false }`
[INFO] [stdout] 03640bee0ce22696a5a7f5758e4707b0b374ee52015c42f938128885196ce841