[INFO] crate cryptosphere 0.0.0 is already in cache
[INFO] testing cryptosphere-0.0.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate cryptosphere 0.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate cryptosphere 0.0.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cryptosphere 0.0.0
[INFO] finished tweaking crates.io crate cryptosphere 0.0.0
[INFO] tweaked toml for crates.io crate cryptosphere 0.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (nickel) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b230efb9f76fb084b01f54ac7cda52518816cbf2c7c3becd16a3bf0ee497372
[INFO] running `"docker" "start" "-a" "3b230efb9f76fb084b01f54ac7cda52518816cbf2c7c3becd16a3bf0ee497372"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: dependency (nickel) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling groupable v0.2.0
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling nickel v0.11.0
[INFO] [stderr]    Compiling cryptosphere v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:9:19
[INFO] [stderr]    |
[INFO] [stderr] 9  |     server.get("/", middleware! { |_request, response|
[INFO] [stderr]    |  ___________________^
[INFO] [stderr] 10 | |     return response.send_file(&Path::new("frontend/index.html"))
[INFO] [stderr]    | |     ------------------------------------------------------------ any code following this expression is unreachable
[INFO] [stderr] 11 | |   });
[INFO] [stderr]    | |___^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/main.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 6  | fn main() {
[INFO] [stderr]    |           - expected `()` because of default return type
[INFO] [stderr] ...
[INFO] [stderr] 13 |   server.listen("127.0.0.1:3000")
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^- help: try adding a semicolon: `;`
[INFO] [stderr]    |   |
[INFO] [stderr]    |   expected `()`, found enum `std::result::Result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected unit type `()`
[INFO] [stderr]                    found enum `std::result::Result<nickel::ListeningServer, std::boxed::Box<(dyn std::error::Error + 'static)>>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `cryptosphere`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3b230efb9f76fb084b01f54ac7cda52518816cbf2c7c3becd16a3bf0ee497372"`
[INFO] running `"docker" "rm" "-f" "3b230efb9f76fb084b01f54ac7cda52518816cbf2c7c3becd16a3bf0ee497372"`
[INFO] [stdout] 3b230efb9f76fb084b01f54ac7cda52518816cbf2c7c3becd16a3bf0ee497372