[INFO] updating cached repository andybug/rustychain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andybug/rustychain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andybug/rustychain" "work/ex/clippy-test-run/sources/stable/gh/andybug/rustychain"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/andybug/rustychain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andybug/rustychain" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/andybug/rustychain"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/andybug/rustychain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b2157f99ed420aff1a00cbefbd1bcc9117cef3b1
[INFO] sha for GitHub repo andybug/rustychain: b2157f99ed420aff1a00cbefbd1bcc9117cef3b1
[INFO] validating manifest of andybug/rustychain on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of andybug/rustychain on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing andybug/rustychain
[INFO] finished frobbing andybug/rustychain
[INFO] frobbed toml for andybug/rustychain written to work/ex/clippy-test-run/sources/stable/gh/andybug/rustychain/Cargo.toml
[INFO] started frobbing andybug/rustychain
[INFO] finished frobbing andybug/rustychain
[INFO] frobbed toml for andybug/rustychain written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/andybug/rustychain/Cargo.toml
[INFO] crate andybug/rustychain has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting andybug/rustychain against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/andybug/rustychain:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cdcfe2bca338aa603d11b264b03218bc3874df84645aa3ffd4f1ef138118caf8
[INFO] running `"docker" "start" "-a" "cdcfe2bca338aa603d11b264b03218bc3874df84645aa3ffd4f1ef138118caf8"`
[INFO] [stderr]     Checking serde_yaml v0.7.1
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking blake2 v0.6.1
[INFO] [stderr]     Checking rustychain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         write!(f, "block _hash: {}\n", hash.to_hex()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         write!(f, "version:     {}\n", self.version).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         write!(f, "timestamp:   {}\n", self.timestamp).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         write!(f, "previous:    {}\n", self.previous.to_hex()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         write!(f, "merkle_root: {}\n", self.merkle_root.to_hex()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         write!(f, "transactions:\n").unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         write!(f, "\n")
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/chain.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |             write!(f, "{:08}: {}\n", i, hash.to_hex())?;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/transaction.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         write!(f, "    amount: {}\n", self.amount)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/blockchain/transaction.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             amount: amount,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `amount`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         write!(f, "  tx _hash:    {}\n", hash.to_hex()).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |         write!(f, "  version:     {}\n", self.version).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         write!(f, "  timestamp:   {}\n", self.timestamp).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |         write!(f, "  inputs:\n").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         write!(f, "  outputs:\n").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         write!(f, "\n")
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         write!(f, "block _hash: {}\n", hash.to_hex()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::write_with_newline)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         write!(f, "version:     {}\n", self.version).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         write!(f, "timestamp:   {}\n", self.timestamp).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         write!(f, "previous:    {}\n", self.previous.to_hex()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:73:9
[INFO] [stderr]    |
[INFO] [stderr] 73 |         write!(f, "merkle_root: {}\n", self.merkle_root.to_hex()).unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         write!(f, "transactions:\n").unwrap();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/block.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         write!(f, "\n")
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/chain.rs:96:13
[INFO] [stderr]    |
[INFO] [stderr] 96 |             write!(f, "{:08}: {}\n", i, hash.to_hex())?;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]   --> src/blockchain/transaction.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         write!(f, "    amount: {}\n", self.amount)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/blockchain/transaction.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             amount: amount,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `amount`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         write!(f, "  tx _hash:    {}\n", hash.to_hex()).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |         write!(f, "  version:     {}\n", self.version).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         write!(f, "  timestamp:   {}\n", self.timestamp).unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |         write!(f, "  inputs:\n").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         write!(f, "  outputs:\n").unwrap();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: using `write!()` with a format string that ends in a single newline, consider using `writeln!()` instead
[INFO] [stderr]    --> src/blockchain/transaction.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         write!(f, "\n")
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#write_with_newline
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeqAccess`
[INFO] [stderr]  --> src/blockchain/block.rs:9:70
[INFO] [stderr]   |
[INFO] [stderr] 9 | use self::serde::de::{Visitor, Deserialize, Deserializer, MapAccess, SeqAccess};
[INFO] [stderr]   |                                                                      ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/blockchain/block.rs:155:24
[INFO] [stderr]     |
[INFO] [stderr] 155 |         const FIELDS: &'static [&'static str] = &["version", "timestamp", "previous", "merkle_root"];
[INFO] [stderr]     |                       -^^^^^^^--------------- help: consider removing `'static`: `&[&'static str]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/blockchain/block.rs:155:34
[INFO] [stderr]     |
[INFO] [stderr] 155 |         const FIELDS: &'static [&'static str] = &["version", "timestamp", "previous", "merkle_root"];
[INFO] [stderr]     |                                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/blockchain/chain.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Hash256`
[INFO] [stderr]   --> src/blockchain/chain.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 | use util::hash::{Hash256, HASH256_BYTES};
[INFO] [stderr]    |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FromHex`
[INFO] [stderr]  --> src/blockchain/transaction.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 | use util::hex::{FromHex, ToHex};
[INFO] [stderr]   |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeqAccess`
[INFO] [stderr]  --> src/blockchain/block.rs:9:70
[INFO] [stderr]   |
[INFO] [stderr] 9 | use self::serde::de::{Visitor, Deserialize, Deserializer, MapAccess, SeqAccess};
[INFO] [stderr]   |                                                                      ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/blockchain/block.rs:155:24
[INFO] [stderr]     |
[INFO] [stderr] 155 |         const FIELDS: &'static [&'static str] = &["version", "timestamp", "previous", "merkle_root"];
[INFO] [stderr]     |                       -^^^^^^^--------------- help: consider removing `'static`: `&[&'static str]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/blockchain/block.rs:155:34
[INFO] [stderr]     |
[INFO] [stderr] 155 |         const FIELDS: &'static [&'static str] = &["version", "timestamp", "previous", "merkle_root"];
[INFO] [stderr]     |                                 -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]  --> src/blockchain/chain.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::fs;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Hash256`
[INFO] [stderr]   --> src/blockchain/chain.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 | use util::hash::{Hash256, HASH256_BYTES};
[INFO] [stderr]    |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FromHex`
[INFO] [stderr]  --> src/blockchain/transaction.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 | use util::hex::{FromHex, ToHex};
[INFO] [stderr]   |                 ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/blockchain/chain.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/util/hash.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `now`
[INFO] [stderr]  --> src/util/time.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn now() -> u64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/block.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new() -> Block {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_timestamp`
[INFO] [stderr]   --> src/blockchain/block.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn set_timestamp(&mut self, ts: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_previous`
[INFO] [stderr]   --> src/blockchain/block.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn set_previous(&mut self, p: &[u8; HASH256_BYTES]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_transaction`
[INFO] [stderr]   --> src/blockchain/block.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn add_transaction(&mut self, tx: Transaction) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/transaction.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn new() -> Transaction {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_timestamp`
[INFO] [stderr]   --> src/blockchain/transaction.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn set_timestamp(&mut self, ts: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_output`
[INFO] [stderr]   --> src/blockchain/transaction.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn add_output(&mut self, amount: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/blockchain/chain.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Merkle_root` should have a camel case name such as `MerkleRoot`
[INFO] [stderr]   --> src/blockchain/block.rs:88:52
[INFO] [stderr]    |
[INFO] [stderr] 88 |         enum Field { Version, Timestamp, Previous, Merkle_root };
[INFO] [stderr]    |                                                    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/blockchain/chain.rs:83:21
[INFO] [stderr]    |
[INFO] [stderr] 83 |                     writeln!(&mut io::stderr(), "read_chain: {}", e);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/blockchain/transaction.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         hash.write_all(&self.hash);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/util/hash.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `now`
[INFO] [stderr]  --> src/util/time.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn now() -> u64 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/block.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new() -> Block {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_timestamp`
[INFO] [stderr]   --> src/blockchain/block.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn set_timestamp(&mut self, ts: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_previous`
[INFO] [stderr]   --> src/blockchain/block.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn set_previous(&mut self, p: &[u8; HASH256_BYTES]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_transaction`
[INFO] [stderr]   --> src/blockchain/block.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn add_transaction(&mut self, tx: Transaction) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/blockchain/transaction.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn new() -> Transaction {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_timestamp`
[INFO] [stderr]   --> src/blockchain/transaction.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn set_timestamp(&mut self, ts: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_output`
[INFO] [stderr]   --> src/blockchain/transaction.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn add_output(&mut self, amount: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Merkle_root` should have a camel case name such as `MerkleRoot`
[INFO] [stderr]   --> src/blockchain/block.rs:88:52
[INFO] [stderr]    |
[INFO] [stderr] 88 |         enum Field { Version, Timestamp, Previous, Merkle_root };
[INFO] [stderr]    |                                                    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/blockchain/chain.rs:83:21
[INFO] [stderr]    |
[INFO] [stderr] 83 |                     writeln!(&mut io::stderr(), "read_chain: {}", e);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/blockchain/transaction.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         hash.write_all(&self.hash);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `"docker" "inspect" "cdcfe2bca338aa603d11b264b03218bc3874df84645aa3ffd4f1ef138118caf8"`
[INFO] running `"docker" "rm" "-f" "cdcfe2bca338aa603d11b264b03218bc3874df84645aa3ffd4f1ef138118caf8"`
[INFO] [stdout] cdcfe2bca338aa603d11b264b03218bc3874df84645aa3ffd4f1ef138118caf8