[INFO] updating cached repository https://github.com/Frando/hypercore-protocol-rust-experiments
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f3afc9bf00e8a1826bbfb4523d8c46d680da6b9
[INFO] checking Frando/hypercore-protocol-rust-experiments against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFrando%2Fhypercore-protocol-rust-experiments" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Frando/hypercore-protocol-rust-experiments on toolchain d939f708d960161d23b964309ba68ff207fc0ead
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Frando/hypercore-protocol-rust-experiments
[INFO] finished tweaking git repo https://github.com/Frando/hypercore-protocol-rust-experiments
[INFO] tweaked toml for git repo https://github.com/Frando/hypercore-protocol-rust-experiments written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/Frando/snow.git`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ee80e06736b860412398a6ab58a83f91c4dc7b5f6cd5317db8a8cc9816a8d7be
[INFO] running `"docker" "start" "-a" "ee80e06736b860412398a6ab58a83f91c4dc7b5f6cd5317db8a8cc9816a8d7be"`
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]    Compiling bytes v0.5.4
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[INFO] [stderr]    Compiling prost-build v0.6.1
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[INFO] [stderr]    Compiling zeroize_derive v1.0.0
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[INFO] [stderr]    Compiling futures-macro v0.3.4
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[INFO] [stderr]     Checking curve25519-dalek v2.0.0
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[INFO] [stderr]     Checking chacha20poly1305 v0.3.3
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[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking broadcaster v1.0.0
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]    Compiling hypercore-protocol v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking simple-message-channels v0.2.0
[INFO] [stderr] error[E0601]: `main` function not found in crate `util`
[INFO] [stderr]   --> examples/util.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / use async_std::net::{TcpListener, TcpStream};
[INFO] [stderr] 2  | | use async_std::prelude::*;
[INFO] [stderr] 3  | | use async_std::task;
[INFO] [stderr] 4  | | use env_logger::Env;
[INFO] [stderr] ...  |
[INFO] [stderr] 57 | |     onconnection(stream, true, context).await
[INFO] [stderr] 58 | | }
[INFO] [stderr]    | |_^ consider adding a `main` function to `examples/util.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: could not compile `hypercore-protocol`.
[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 `"docker" "inspect" "ee80e06736b860412398a6ab58a83f91c4dc7b5f6cd5317db8a8cc9816a8d7be"`
[INFO] running `"docker" "rm" "-f" "ee80e06736b860412398a6ab58a83f91c4dc7b5f6cd5317db8a8cc9816a8d7be"`
[INFO] [stdout] ee80e06736b860412398a6ab58a83f91c4dc7b5f6cd5317db8a8cc9816a8d7be