[INFO] fetching crate panda 0.3.0...
[INFO] checking panda-0.3.0 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate panda 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate panda 0.3.0 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate panda 0.3.0
[INFO] finished tweaking crates.io crate panda 0.3.0
[INFO] tweaked toml for crates.io crate panda 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate panda 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b11dadf9f4343ba86f84457d68b13c3d4afbf3b40aebab374a5e6fe668cfd8a6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b11dadf9f4343ba86f84457d68b13c3d4afbf3b40aebab374a5e6fe668cfd8a6"`
[INFO] [stderr]    Compiling curl v0.4.28
[INFO] [stderr]    Compiling isahc v0.9.1
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.30+curl-7.69.1
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking libz-sys v1.0.25
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]     Checking tokio v0.2.18
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking sluice v0.5.2
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-tungstenite v0.10.1
[INFO] [stderr]     Checking panda v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stderr]  --> examples/ping_pong.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[tokio::main]
[INFO] [stderr]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stderr]  --> examples/embed.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[tokio::main]
[INFO] [stderr]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stderr]  --> examples/embed.rs:8:20
[INFO] [stderr]   |
[INFO] [stderr] 8 | async fn main() -> Result<(), Box<dyn Error>> {
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using `()`, or a `Result`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stderr]  --> examples/ping_pong.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | async fn main() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` can only return types that implement `std::process::Termination`
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider using `()`, or a `Result`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `panda`.
[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: could not compile `panda`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b11dadf9f4343ba86f84457d68b13c3d4afbf3b40aebab374a5e6fe668cfd8a6"`
[INFO] running `"docker" "rm" "-f" "b11dadf9f4343ba86f84457d68b13c3d4afbf3b40aebab374a5e6fe668cfd8a6"`
[INFO] [stdout] b11dadf9f4343ba86f84457d68b13c3d4afbf3b40aebab374a5e6fe668cfd8a6