[INFO] fetching crate hbbft 0.1.1...
[INFO] checking hbbft-0.1.1 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate hbbft 0.1.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate hbbft 0.1.1 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hbbft 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hbbft 0.1.1
[INFO] tweaked toml for crates.io crate hbbft 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memsec v0.5.7
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ea2e02b9a6f9888c0bc6aa5443cb332b9bcc077e47329281ad8e6720e071e00
[INFO] running `Command { std: "docker" "start" "-a" "7ea2e02b9a6f9888c0bc6aa5443cb332b9bcc077e47329281ad8e6720e071e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ea2e02b9a6f9888c0bc6aa5443cb332b9bcc077e47329281ad8e6720e071e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea2e02b9a6f9888c0bc6aa5443cb332b9bcc077e47329281ad8e6720e071e00", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a25679ff956596261d8e9c2208869e5e8c848ae298d68f607ad643e3d65e64eb
[INFO] running `Command { std: "docker" "start" "-a" "a25679ff956596261d8e9c2208869e5e8c848ae298d68f607ad643e3d65e64eb", kill_on_drop: false }`
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[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]     Checking hbbft v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/network_info.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand;
[INFO] [stdout]   |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/binary_agreement/binary_agreement.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/binary_agreement/mod.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/broadcast/message.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/builder.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/dynamic_honey_badger.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/votes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/dynamic_honey_badger/votes.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     use rand;
[INFO] [stdout]     |         ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/honey_badger/epoch_state.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/network_info.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand;
[INFO] [stdout]   |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/binary_agreement/binary_agreement.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/subset/subset.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         #[derivative(Debug(format_with = "util::fmt_hex"))] Vec<u8>,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/binary_agreement/mod.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:187:5
[INFO] [stdout]     |
[INFO] [stdout] 187 | use bincode;
[INFO] [stdout]     |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 | use rand;
[INFO] [stdout]     |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/broadcast/message.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/builder.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/transaction_queue.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/dynamic_honey_badger.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/votes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/honey_badger/epoch_state.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/subset/subset.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         #[derivative(Debug(format_with = "util::fmt_hex"))] Vec<u8>,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:187:5
[INFO] [stdout]     |
[INFO] [stdout] 187 | use bincode;
[INFO] [stdout]     |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 | use rand;
[INFO] [stdout]     |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/transaction_queue.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> tests/binary_agreement.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | /// Proptest wrapper for `binary_agreement` that runs the test function on generated configurations.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> tests/net_dynamic_hb.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | /// Proptest wrapper for `do_drop_and_re_add`.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> examples/network/commst.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `crossbeam` is imported redundantly
[INFO] [stdout]  --> examples/network/commst.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crossbeam;
[INFO] [stdout]   |     ^^^^^^^^^ the item `crossbeam` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `crossbeam_channel` is imported redundantly
[INFO] [stdout]  --> examples/network/messaging.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossbeam_channel::{self, bounded, select, unbounded, Receiver, Sender};
[INFO] [stdout]   |                         ^^^^ the item `crossbeam_channel` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]   --> examples/network/node.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | use std::marker::{Send, Sync};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Send` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]   --> examples/network/node.rs:37:25
[INFO] [stdout]    |
[INFO] [stdout] 37 | use std::marker::{Send, Sync};
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]   --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `crossbeam` is imported redundantly
[INFO] [stdout]   --> examples/network/node.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use crossbeam;
[INFO] [stdout]    |     ^^^^^^^^^ the item `crossbeam` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/consensus-node.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> tests/binary_agreement_mitm.rs:239:26
[INFO] [stdout]     |
[INFO] [stdout] 239 | const NUM_NODES: usize = (NODES_PER_GROUP * 3 + 1);
[INFO] [stdout]     |                          ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 - const NUM_NODES: usize = (NODES_PER_GROUP * 3 + 1);
[INFO] [stdout] 239 + const NUM_NODES: usize = NODES_PER_GROUP * 3 + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused `hbbft::Step` in tuple element 1 that must be used
[INFO] [stdout]    --> tests/binary_agreement_mitm.rs:482:9
[INFO] [stdout]     |
[INFO] [stdout] 482 |         net.crank_expect(&mut rng);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: The algorithm step result must be used.
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> tests/binary_agreement_mitm.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(unused_must_use)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hbbft` (test "binary_agreement_mitm") due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a25679ff956596261d8e9c2208869e5e8c848ae298d68f607ad643e3d65e64eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a25679ff956596261d8e9c2208869e5e8c848ae298d68f607ad643e3d65e64eb", kill_on_drop: false }`
[INFO] [stdout] a25679ff956596261d8e9c2208869e5e8c848ae298d68f607ad643e3d65e64eb
[INFO] checking hbbft-0.1.1 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate hbbft 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate hbbft 0.1.1 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hbbft 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hbbft 0.1.1
[INFO] tweaked toml for crates.io crate hbbft 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c8ffdaf7f24f015a66a732a76c57402116c4b508af4f9c800a6aed2de49bcbc
[INFO] running `Command { std: "docker" "start" "-a" "0c8ffdaf7f24f015a66a732a76c57402116c4b508af4f9c800a6aed2de49bcbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c8ffdaf7f24f015a66a732a76c57402116c4b508af4f9c800a6aed2de49bcbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c8ffdaf7f24f015a66a732a76c57402116c4b508af4f9c800a6aed2de49bcbc", kill_on_drop: false }`
[INFO] [stdout] 0c8ffdaf7f24f015a66a732a76c57402116c4b508af4f9c800a6aed2de49bcbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24e27925516dbaaab4b2ef52824ffa7f54b6ca8a69911195c457e728b48ab25f
[INFO] running `Command { std: "docker" "start" "-a" "24e27925516dbaaab4b2ef52824ffa7f54b6ca8a69911195c457e728b48ab25f", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling memsec v0.5.7
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking rand04 v0.1.1
[INFO] [stderr]    Compiling reed-solomon-erasure v3.1.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking rand04_compat v0.1.1
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking pairing v0.14.2
[INFO] [stderr]     Checking humantime v1.3.0
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[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking bit-vec v0.6.3
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[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_derive v0.5.0
[INFO] [stderr]     Checking init_with v1.1.0
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking colored v1.9.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking signifix v0.9.0
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking threshold_crypto v0.3.2
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]     Checking hbbft v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/network_info.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand;
[INFO] [stdout]   |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/binary_agreement/binary_agreement.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/binary_agreement/mod.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/broadcast/message.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/builder.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/dynamic_honey_badger.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/votes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/honey_badger/epoch_state.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/network_info.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand;
[INFO] [stdout]   |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/binary_agreement/binary_agreement.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/binary_agreement/mod.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/broadcast/message.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/builder.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/dynamic_honey_badger.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/dynamic_honey_badger/votes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/subset/subset.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         #[derivative(Debug(format_with = "util::fmt_hex"))] Vec<u8>,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/dynamic_honey_badger/votes.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |     use rand;
[INFO] [stdout]     |         ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:187:5
[INFO] [stdout]     |
[INFO] [stdout] 187 | use bincode;
[INFO] [stdout]     |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 | use rand;
[INFO] [stdout]     |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]   --> src/honey_badger/epoch_state.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use bincode;
[INFO] [stdout]    |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/transaction_queue.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> src/honey_badger/error.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/subset/subset.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         #[derivative(Debug(format_with = "util::fmt_hex"))] Vec<u8>,
[INFO] [stdout]    |         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:187:5
[INFO] [stdout]     |
[INFO] [stdout] 187 | use bincode;
[INFO] [stdout]     |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]    --> src/sync_key_gen.rs:189:5
[INFO] [stdout]     |
[INFO] [stdout] 189 | use rand;
[INFO] [stdout]     |     ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/transaction_queue.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{self, seq::SliceRandom, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> tests/net_dynamic_hb.rs:77:1
[INFO] [stdout]    |
[INFO] [stdout] 77 | /// Proptest wrapper for `do_drop_and_re_add`.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> tests/binary_agreement_mitm.rs:239:26
[INFO] [stdout]     |
[INFO] [stdout] 239 | const NUM_NODES: usize = (NODES_PER_GROUP * 3 + 1);
[INFO] [stdout]     |                          ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 239 - const NUM_NODES: usize = (NODES_PER_GROUP * 3 + 1);
[INFO] [stdout] 239 + const NUM_NODES: usize = NODES_PER_GROUP * 3 + 1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused `hbbft::Step` in tuple element 1 that must be used
[INFO] [stdout]    --> tests/binary_agreement_mitm.rs:482:9
[INFO] [stdout]     |
[INFO] [stdout] 482 |         net.crank_expect(&mut rng);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: The algorithm step result must be used.
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> tests/binary_agreement_mitm.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(unused_must_use)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hbbft` (test "binary_agreement_mitm") due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> tests/binary_agreement.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | /// Proptest wrapper for `binary_agreement` that runs the test function on generated configurations.
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]  --> tests/net/err.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use failure;
[INFO] [stdout]   |     ^^^^^^^ the item `failure` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/proptest.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{self, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `bincode` is imported redundantly
[INFO] [stdout]  --> examples/network/commst.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use bincode;
[INFO] [stdout]   |     ^^^^^^^ the item `bincode` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `crossbeam` is imported redundantly
[INFO] [stdout]  --> examples/network/commst.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crossbeam;
[INFO] [stdout]   |     ^^^^^^^^^ the item `crossbeam` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `crossbeam_channel` is imported redundantly
[INFO] [stdout]  --> examples/network/messaging.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossbeam_channel::{self, bounded, select, unbounded, Receiver, Sender};
[INFO] [stdout]   |                         ^^^^ the item `crossbeam_channel` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Send` is imported redundantly
[INFO] [stdout]   --> examples/network/node.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 | use std::marker::{Send, Sync};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Send` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Sync` is imported redundantly
[INFO] [stdout]   --> examples/network/node.rs:37:25
[INFO] [stdout]    |
[INFO] [stdout] 37 | use std::marker::{Send, Sync};
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout]   --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Sync` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `crossbeam` is imported redundantly
[INFO] [stdout]   --> examples/network/node.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use crossbeam;
[INFO] [stdout]    |     ^^^^^^^^^ the item `crossbeam` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout]     |         ^                                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         (prev.high != self.high || prev.current != self.current)
[INFO] [stdout] 154 +         prev.high != self.high || prev.current != self.current
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/consensus-node.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/72eda894eb3548c7ba774079ce0afab42958d4ee/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> tests/net/proptest.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout]     |         ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 167 -         (prev.current != self.current || prev.low != self.low)
[INFO] [stdout] 167 +         prev.current != self.current || prev.low != self.low
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | use rand::{self, Rng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hbbft` is imported redundantly
[INFO] [stdout]   --> tests/net/mod.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 | use hbbft::{self, ConsensusProtocol, Contribution, CpStep, Fault, NetworkInfo, NodeIdT, Step};
[INFO] [stdout]    |             ^^^^ the item `hbbft` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "24e27925516dbaaab4b2ef52824ffa7f54b6ca8a69911195c457e728b48ab25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24e27925516dbaaab4b2ef52824ffa7f54b6ca8a69911195c457e728b48ab25f", kill_on_drop: false }`
[INFO] [stdout] 24e27925516dbaaab4b2ef52824ffa7f54b6ca8a69911195c457e728b48ab25f
