[INFO] fetching crate nimiq-key-derivation 0.2.0...
[INFO] testing nimiq-key-derivation-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate nimiq-key-derivation 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nimiq-key-derivation 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 nimiq-key-derivation 0.2.0
[INFO] finished tweaking crates.io crate nimiq-key-derivation 0.2.0
[INFO] tweaked toml for crates.io crate nimiq-key-derivation 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] d1473fb39d435d64df2d76529ad6c2208aa6ab4ba1e7117642c5c30ea10dd675
[INFO] running `"docker" "start" "-a" "d1473fb39d435d64df2d76529ad6c2208aa6ab4ba1e7117642c5c30ea10dd675"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling nimiq-keys v0.2.0
[INFO] [stderr] error[E0277]: the trait bound `rand_os::OsRng: rand_core::CryptoRng` is not satisfied
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/key_pair.rs:17:57
[INFO] [stderr]     |
[INFO] [stderr] 17  |         let key_pair = ed25519_dalek::Keypair::generate(&mut cspring);
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^ the trait `rand_core::CryptoRng` is not implemented for `rand_os::OsRng`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/ed25519.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 |         R: CryptoRng + RngCore,
[INFO] [stderr]     |            --------- required by this bound in `ed25519_dalek::ed25519::Keypair::generate`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand_core-0.4.2/src/lib.rs:430:1
[INFO] [stderr]     |
[INFO] [stderr] 430 | impl<'a, R: CryptoRng + ?Sized> CryptoRng for &'a mut R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand_core` are being used?
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand_os::OsRng: rand_core::RngCore` is not satisfied
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/key_pair.rs:17:57
[INFO] [stderr]     |
[INFO] [stderr] 17  |         let key_pair = ed25519_dalek::Keypair::generate(&mut cspring);
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^ the trait `rand_core::RngCore` is not implemented for `rand_os::OsRng`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/ed25519.rs:130:24
[INFO] [stderr]     |
[INFO] [stderr] 130 |         R: CryptoRng + RngCore,
[INFO] [stderr]     |                        ------- required by this bound in `ed25519_dalek::ed25519::Keypair::generate`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand_core-0.4.2/src/lib.rs:373:1
[INFO] [stderr]     |
[INFO] [stderr] 373 | / impl<'a, R: RngCore + ?Sized> RngCore for &'a mut R {
[INFO] [stderr] 374 | |     #[inline(always)]
[INFO] [stderr] 375 | |     fn next_u32(&mut self) -> u32 {
[INFO] [stderr] 376 | |         (**self).next_u32()
[INFO] [stderr] ...   |
[INFO] [stderr] 392 | |     }
[INFO] [stderr] 393 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand_core` are being used?
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand_os::OsRng: rand_core::CryptoRng` is not satisfied
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/private_key.rs:21:55
[INFO] [stderr]     |
[INFO] [stderr] 21  |         PrivateKey(ed25519_dalek::SecretKey::generate(&mut cspring))
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^ the trait `rand_core::CryptoRng` is not implemented for `rand_os::OsRng`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/secret.rs:172:12
[INFO] [stderr]     |
[INFO] [stderr] 172 |         T: CryptoRng + RngCore,
[INFO] [stderr]     |            --------- required by this bound in `ed25519_dalek::secret::SecretKey::generate`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand_core-0.4.2/src/lib.rs:430:1
[INFO] [stderr]     |
[INFO] [stderr] 430 | impl<'a, R: CryptoRng + ?Sized> CryptoRng for &'a mut R {}
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand_core` are being used?
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `rand_os::OsRng: rand_core::RngCore` is not satisfied
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/private_key.rs:21:55
[INFO] [stderr]     |
[INFO] [stderr] 21  |         PrivateKey(ed25519_dalek::SecretKey::generate(&mut cspring))
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^ the trait `rand_core::RngCore` is not implemented for `rand_os::OsRng`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/secret.rs:172:24
[INFO] [stderr]     |
[INFO] [stderr] 172 |         T: CryptoRng + RngCore,
[INFO] [stderr]     |                        ------- required by this bound in `ed25519_dalek::secret::SecretKey::generate`
[INFO] [stderr]     |
[INFO] [stderr] help: trait impl with same name found
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rand_core-0.4.2/src/lib.rs:373:1
[INFO] [stderr]     |
[INFO] [stderr] 373 | / impl<'a, R: RngCore + ?Sized> RngCore for &'a mut R {
[INFO] [stderr] 374 | |     #[inline(always)]
[INFO] [stderr] 375 | |     fn next_u32(&mut self) -> u32 {
[INFO] [stderr] 376 | |         (**self).next_u32()
[INFO] [stderr] ...   |
[INFO] [stderr] 392 | |     }
[INFO] [stderr] 393 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     = note: perhaps two different versions of crate `rand_core` are being used?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `nimiq-keys`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d1473fb39d435d64df2d76529ad6c2208aa6ab4ba1e7117642c5c30ea10dd675"`
[INFO] running `"docker" "rm" "-f" "d1473fb39d435d64df2d76529ad6c2208aa6ab4ba1e7117642c5c30ea10dd675"`
[INFO] [stdout] d1473fb39d435d64df2d76529ad6c2208aa6ab4ba1e7117642c5c30ea10dd675