[INFO] fetching crate bitcoin-merkle 0.1.12-alpha.0...
[INFO] checking bitcoin-merkle-0.1.12-alpha.0 against try#9edc8987ad42f7a9d21d57465015000ae3578c17 for pr-108389
[INFO] extracting crate bitcoin-merkle 0.1.12-alpha.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate bitcoin-merkle 0.1.12-alpha.0 on toolchain 9edc8987ad42f7a9d21d57465015000ae3578c17
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9edc8987ad42f7a9d21d57465015000ae3578c17" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoin-merkle 0.1.12-alpha.0
[INFO] finished tweaking crates.io crate bitcoin-merkle 0.1.12-alpha.0
[INFO] tweaked toml for crates.io crate bitcoin-merkle 0.1.12-alpha.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+9edc8987ad42f7a9d21d57465015000ae3578c17" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9edc8987ad42f7a9d21d57465015000ae3578c17" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+9edc8987ad42f7a9d21d57465015000ae3578c17" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a29224f6d0ffe9fa634f9c84ea08eabb31b6c9d1b0f69ce39bf21be1ef142e1b
[INFO] running `Command { std: "docker" "start" "-a" "a29224f6d0ffe9fa634f9c84ea08eabb31b6c9d1b0f69ce39bf21be1ef142e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a29224f6d0ffe9fa634f9c84ea08eabb31b6c9d1b0f69ce39bf21be1ef142e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a29224f6d0ffe9fa634f9c84ea08eabb31b6c9d1b0f69ce39bf21be1ef142e1b", kill_on_drop: false }`
[INFO] [stdout] a29224f6d0ffe9fa634f9c84ea08eabb31b6c9d1b0f69ce39bf21be1ef142e1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+9edc8987ad42f7a9d21d57465015000ae3578c17" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a66d4e20b312a53314639cf90746aeac0d102a2584c35622d4b3bb7561e2703
[INFO] running `Command { std: "docker" "start" "-a" "8a66d4e20b312a53314639cf90746aeac0d102a2584c35622d4b3bb7561e2703", kill_on_drop: false }`
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[INFO] [stderr]     Checking bitcoin-imports v0.1.12-alpha.0
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[INFO] [stderr]    Compiling bitcoinleveldb-options v0.1.12-alpha.0
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[INFO] [stderr]    Compiling bitcoinsecp256k1-scalar v0.1.12-alpha.0
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[INFO] [stderr]    Compiling bitcoin-secp256k1 v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-ripemd v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-serialize v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-mem v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoinsecp256k1-keys v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-cuckoo-cache v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-string v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-hash v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-log v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-time v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-scripting v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-tx v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-sha512 v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-chacha v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-random v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-validation v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-block v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-bloom v0.1.12-alpha.0
[INFO] [stderr]    Compiling bitcoin-merkle v0.1.12-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bits`
[INFO] [stdout]   --> src/merkleblock.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn bits_to_bytes(bits: &Vec<bool>) -> Vec<u8> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/merkleblock.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn bytes_to_bits(bytes: &Vec<u8>) -> Vec<bool> {
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn calc_tree_width(&self, height: i32) -> u32 {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |         height: i32,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/merkleblock.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         pos:    u32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txid`
[INFO] [stdout]    --> src/merkleblock.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         txid:   &Vec<u256>) -> u256 {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         height: i32,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/merkleblock.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         pos:    u32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txid`
[INFO] [stdout]    --> src/merkleblock.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         txid:   &Vec<u256>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         match_: &Vec<bool>)  {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         height:      i32,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/merkleblock.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |         pos:         u32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_bits_used`
[INFO] [stdout]    --> src/merkleblock.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 |         n_bits_used: &mut u32,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_bits_used`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_hash_used`
[INFO] [stdout]    --> src/merkleblock.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 |         n_hash_used: &mut u32,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_hash_used`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         match_:      &mut Vec<u256>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vn_index`
[INFO] [stdout]    --> src/merkleblock.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         vn_index:    &mut Vec<u32>) -> u256 {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vn_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txid`
[INFO] [stdout]    --> src/merkleblock.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |         txid:   &Vec<u256>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         match_: &Vec<bool>) -> Self {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 331 |         match_:   &mut Vec<u256>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vn_index`
[INFO] [stdout]    --> src/merkleblock.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 |         vn_index: &mut Vec<u32>) -> u256 {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vn_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/merkleblock.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         block:  Amo<Block>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]    --> src/merkleblock.rs:429:9
[INFO] [stdout]     |
[INFO] [stdout] 429 |         filter: &mut BloomFilter) -> Self {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/merkleblock.rs:445:9
[INFO] [stdout]     |
[INFO] [stdout] 445 |         block: &Block,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txids`
[INFO] [stdout]    --> src/merkleblock.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |         txids: &HashSet<u256>) -> Self {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_txids`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/merkleblock.rs:462:9
[INFO] [stdout]     |
[INFO] [stdout] 462 |         block:  &Block,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]    --> src/merkleblock.rs:463:9
[INFO] [stdout]     |
[INFO] [stdout] 463 |         filter: *mut BloomFilter,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txids`
[INFO] [stdout]    --> src/merkleblock.rs:464:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |         txids:  *const HashSet<u256>) -> Self {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_txids`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bitcoin_derive::*`
[INFO] [stdout]  --> src/imports.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) use bitcoin_derive::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `n_transactions`, `bits`, `hash`, and `bad` are never read
[INFO] [stdout]    --> src/merkleblock.rs:92:5
[INFO] [stdout]     |
[INFO] [stdout] 85  | pub struct PartialMerkleTree {
[INFO] [stdout]     |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 92  |     n_transactions: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99  |     bits:           Vec<bool>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     hash:           Vec<u256>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     bad:            bool,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bits`
[INFO] [stdout]   --> src/merkleblock.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn bits_to_bytes(bits: &Vec<bool>) -> Vec<u8> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes`
[INFO] [stdout]   --> src/merkleblock.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn bytes_to_bits(bytes: &Vec<u8>) -> Vec<bool> {
[INFO] [stdout]    |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn calc_tree_width(&self, height: i32) -> u32 {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |         height: i32,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/merkleblock.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         pos:    u32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txid`
[INFO] [stdout]    --> src/merkleblock.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         txid:   &Vec<u256>) -> u256 {
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:212:9
[INFO] [stdout]     |
[INFO] [stdout] 212 |         height: i32,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/merkleblock.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         pos:    u32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txid`
[INFO] [stdout]    --> src/merkleblock.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |         txid:   &Vec<u256>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         match_: &Vec<bool>)  {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/merkleblock.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |         height:      i32,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]    --> src/merkleblock.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |         pos:         u32,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_bits_used`
[INFO] [stdout]    --> src/merkleblock.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 |         n_bits_used: &mut u32,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_bits_used`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_hash_used`
[INFO] [stdout]    --> src/merkleblock.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 |         n_hash_used: &mut u32,
[INFO] [stdout]     |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_hash_used`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:250:9
[INFO] [stdout]     |
[INFO] [stdout] 250 |         match_:      &mut Vec<u256>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vn_index`
[INFO] [stdout]    --> src/merkleblock.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         vn_index:    &mut Vec<u32>) -> u256 {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vn_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txid`
[INFO] [stdout]    --> src/merkleblock.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |         txid:   &Vec<u256>,
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:301:9
[INFO] [stdout]     |
[INFO] [stdout] 301 |         match_: &Vec<bool>) -> Self {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `match_`
[INFO] [stdout]    --> src/merkleblock.rs:331:9
[INFO] [stdout]     |
[INFO] [stdout] 331 |         match_:   &mut Vec<u256>,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_match_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vn_index`
[INFO] [stdout]    --> src/merkleblock.rs:332:9
[INFO] [stdout]     |
[INFO] [stdout] 332 |         vn_index: &mut Vec<u32>) -> u256 {
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vn_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/merkleblock.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         block:  Amo<Block>,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]    --> src/merkleblock.rs:429:9
[INFO] [stdout]     |
[INFO] [stdout] 429 |         filter: &mut BloomFilter) -> Self {
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/merkleblock.rs:445:9
[INFO] [stdout]     |
[INFO] [stdout] 445 |         block: &Block,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txids`
[INFO] [stdout]    --> src/merkleblock.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |         txids: &HashSet<u256>) -> Self {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_txids`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/merkleblock.rs:462:9
[INFO] [stdout]     |
[INFO] [stdout] 462 |         block:  &Block,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]    --> src/merkleblock.rs:463:9
[INFO] [stdout]     |
[INFO] [stdout] 463 |         filter: *mut BloomFilter,
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txids`
[INFO] [stdout]    --> src/merkleblock.rs:464:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |         txids:  *const HashSet<u256>) -> Self {
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_txids`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `n_transactions`, `bits`, `hash`, and `bad` are never read
[INFO] [stdout]    --> src/merkleblock.rs:92:5
[INFO] [stdout]     |
[INFO] [stdout] 85  | pub struct PartialMerkleTree {
[INFO] [stdout]     |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 92  |     n_transactions: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99  |     bits:           Vec<bool>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     hash:           Vec<u256>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     bad:            bool,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 59s
[INFO] running `Command { std: "docker" "inspect" "8a66d4e20b312a53314639cf90746aeac0d102a2584c35622d4b3bb7561e2703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a66d4e20b312a53314639cf90746aeac0d102a2584c35622d4b3bb7561e2703", kill_on_drop: false }`
[INFO] [stdout] 8a66d4e20b312a53314639cf90746aeac0d102a2584c35622d4b3bb7561e2703