[INFO] crate elgamal-curve25519 0.2.0 is already in cache
[INFO] testing elgamal-curve25519-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate elgamal-curve25519 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate elgamal-curve25519 0.2.0 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 elgamal-curve25519 0.2.0
[INFO] finished tweaking crates.io crate elgamal-curve25519 0.2.0
[INFO] tweaked toml for crates.io crate elgamal-curve25519 0.2.0 written to /workspace/builds/worker-10/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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 2be1549e8bd43ede64982ac26ca19385ec4af87444b7a2fb4ef962bf27ff4cc5
[INFO] running `"docker" "start" "-a" "2be1549e8bd43ede64982ac26ca19385ec4af87444b7a2fb4ef962bf27ff4cc5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling subtle v2.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]    Compiling elgamal-curve25519 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: the trait bound `D: std::default::Default` is not satisfied
[INFO] [stderr]    --> src/lib.rs:198:40
[INFO] [stderr]     |
[INFO] [stderr] 198 |         let scalar = Scalar::from_hash(digest).reduce();
[INFO] [stderr]     |                                        ^^^^^^ the trait `std::default::Default` is not implemented for `D`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/curve25519-dalek-1.1.3/src/scalar.rs:602:45
[INFO] [stderr]     |
[INFO] [stderr] 602 |         where D: Digest<OutputSize = U64> + Default
[INFO] [stderr]     |                                             ------- required by this bound in `curve25519_dalek::scalar::Scalar::from_hash`
[INFO] [stderr]     |
[INFO] [stderr] help: consider further restricting this bound
[INFO] [stderr]     |
[INFO] [stderr] 196 |         where D: Digest<OutputSize = U64> + std::default::Default
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `elgamal-curve25519`.
[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" "2be1549e8bd43ede64982ac26ca19385ec4af87444b7a2fb4ef962bf27ff4cc5"`
[INFO] running `"docker" "rm" "-f" "2be1549e8bd43ede64982ac26ca19385ec4af87444b7a2fb4ef962bf27ff4cc5"`
[INFO] [stdout] 2be1549e8bd43ede64982ac26ca19385ec4af87444b7a2fb4ef962bf27ff4cc5