[INFO] fetching crate nimiq-mempool 0.2.0...
[INFO] checking nimiq-mempool-0.2.0 against try#6024cfef3a82f9a7688f07054f1650081bad3af5 for pr-74130
[INFO] extracting crate nimiq-mempool 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nimiq-mempool 0.2.0 on toolchain 6024cfef3a82f9a7688f07054f1650081bad3af5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nimiq-mempool 0.2.0
[INFO] finished tweaking crates.io crate nimiq-mempool 0.2.0
[INFO] tweaked toml for crates.io crate nimiq-mempool 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8adab377c29ecd07203dd9eadb73cb7fb629f71cd389bd4e53b4e7c1b1392e5c
[INFO] running `Command { std: "docker" "start" "-a" "8adab377c29ecd07203dd9eadb73cb7fb629f71cd389bd4e53b4e7c1b1392e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8adab377c29ecd07203dd9eadb73cb7fb629f71cd389bd4e53b4e7c1b1392e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8adab377c29ecd07203dd9eadb73cb7fb629f71cd389bd4e53b4e7c1b1392e5c", kill_on_drop: false }`
[INFO] [stdout] 8adab377c29ecd07203dd9eadb73cb7fb629f71cd389bd4e53b4e7c1b1392e5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 499ae40256374375ae9618e3db91dda6114649617861bbd04342bbfa2c0ffea3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "499ae40256374375ae9618e3db91dda6114649617861bbd04342bbfa2c0ffea3", kill_on_drop: false }`
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking supercow v0.1.0
[INFO] [stderr]     Checking nimiq-collections v0.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking nimiq-keys v0.2.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stdout] error[E0277]: the trait bound `rand::rngs::OsRng: rand_core::CryptoRng` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/key_pair.rs:17:57
[INFO] [stdout]     |
[INFO] [stdout] 17  |         let key_pair = ed25519_dalek::Keypair::generate(&mut cspring);
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^ the trait `rand_core::CryptoRng` is not implemented for `rand::rngs::OsRng`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/ed25519.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |         R: CryptoRng + RngCore,
[INFO] [stdout]     |            --------- required by this bound in `ed25519_dalek::Keypair::generate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `rand::rngs::OsRng: rand_core::RngCore` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/key_pair.rs:17:57
[INFO] [stdout]     |
[INFO] [stdout] 17  |         let key_pair = ed25519_dalek::Keypair::generate(&mut cspring);
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^ the trait `rand_core::RngCore` is not implemented for `rand::rngs::OsRng`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/ed25519.rs:130:24
[INFO] [stdout]     |
[INFO] [stdout] 130 |         R: CryptoRng + RngCore,
[INFO] [stdout]     |                        ------- required by this bound in `ed25519_dalek::Keypair::generate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `rand::rngs::OsRng: rand_core::CryptoRng` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/private_key.rs:21:55
[INFO] [stdout]     |
[INFO] [stdout] 21  |         PrivateKey(ed25519_dalek::SecretKey::generate(&mut cspring))
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^ the trait `rand_core::CryptoRng` is not implemented for `rand::rngs::OsRng`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/secret.rs:172:12
[INFO] [stdout]     |
[INFO] [stdout] 172 |         T: CryptoRng + RngCore,
[INFO] [stdout]     |            --------- required by this bound in `ed25519_dalek::SecretKey::generate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `rand::rngs::OsRng: rand_core::RngCore` is not satisfied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nimiq-keys-0.2.0/src/private_key.rs:21:55
[INFO] [stdout]     |
[INFO] [stdout] 21  |         PrivateKey(ed25519_dalek::SecretKey::generate(&mut cspring))
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^ the trait `rand_core::RngCore` is not implemented for `rand::rngs::OsRng`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ed25519-dalek-1.0.0-pre.3/src/secret.rs:172:24
[INFO] [stdout]     |
[INFO] [stdout] 172 |         T: CryptoRng + RngCore,
[INFO] [stdout]     |                        ------- required by this bound in `ed25519_dalek::SecretKey::generate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nimiq-keys`.
[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 `Command { std: "docker" "inspect" "499ae40256374375ae9618e3db91dda6114649617861bbd04342bbfa2c0ffea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "499ae40256374375ae9618e3db91dda6114649617861bbd04342bbfa2c0ffea3", kill_on_drop: false }`
[INFO] [stdout] 499ae40256374375ae9618e3db91dda6114649617861bbd04342bbfa2c0ffea3