[INFO] updating cached repository https://github.com/JordanShurmer/solid-rust
[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] 8d603f9af5ff584c2ea824d5a5a37e0e9f4f4202
[INFO] checking JordanShurmer/solid-rust against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordanShurmer%2Fsolid-rust" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JordanShurmer/solid-rust on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/JordanShurmer/solid-rust
[INFO] removed workspace from git repo https://github.com/JordanShurmer/solid-rust
[INFO] removed path dependency server from git repo https://github.com/JordanShurmer/solid-rust
[INFO] finished tweaking git repo https://github.com/JordanShurmer/solid-rust
[INFO] tweaked toml for git repo https://github.com/JordanShurmer/solid-rust written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/JordanShurmer/solid-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (server) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (server) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d007c9ded33a145b91b1c06bbcaf7bf1d0507b407aac28cb9d5f7fee7934fa23
[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" "d007c9ded33a145b91b1c06bbcaf7bf1d0507b407aac28cb9d5f7fee7934fa23"`
[INFO] [stderr] warning: dependency (server) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Checking server v0.1.0
[INFO] [stderr]     Checking tokio v0.2.4
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.6
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking tokio-sync v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.6
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking solid-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `server::serve`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use server::serve;
[INFO] [stderr]   |     ^^^^^^^^^^^^^ no `serve` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stderr]   --> src/main.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[tokio::main]
[INFO] [stderr]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `server::serve`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use server::serve;
[INFO] [stderr]   |     ^^^^^^^^^^^^^ no `serve` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stderr]   --> src/main.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[tokio::main]
[INFO] [stderr]    |          ^^^^ could not find `main` in `tokio`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `solid-rust`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: `main` has invalid return type `impl std::future::Future`
[INFO] [stderr]   --> src/main.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 | 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 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `solid-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d007c9ded33a145b91b1c06bbcaf7bf1d0507b407aac28cb9d5f7fee7934fa23"`
[INFO] running `"docker" "rm" "-f" "d007c9ded33a145b91b1c06bbcaf7bf1d0507b407aac28cb9d5f7fee7934fa23"`
[INFO] [stdout] d007c9ded33a145b91b1c06bbcaf7bf1d0507b407aac28cb9d5f7fee7934fa23