[INFO] updating cached repository https://github.com/b00f/durian
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/b00f/durian
[INFO] [stderr]    47de988..93796b1  master     -> master
[INFO] [stderr]  * [new branch]      rpc_call   -> rpc_call
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 93796b14b5f3240eb6475b2fc2c964168610d198
[INFO] checking b00f/durian against master#212aa3ea28d91a97d1e1261709c0b6e6790788e6 for pr-69340
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb00f%2Fdurian" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/b00f/durian on toolchain 212aa3ea28d91a97d1e1261709c0b6e6790788e6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/b00f/durian
[INFO] finished tweaking git repo https://github.com/b00f/durian
[INFO] tweaked toml for git repo https://github.com/b00f/durian written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/b00f/durian already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7346e278d2eabe735a3a9261c175a3bb0c7f6636bc73457ec5b6cc8ecba50ffe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7346e278d2eabe735a3a9261c175a3bb0c7f6636bc73457ec5b6cc8ecba50ffe"`
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[INFO] [stderr]     Checking state-db v0.1.0 (https://github.com/b00f/parity-ethereum.git#e14aaebe)
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[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/state_cache.rs:129:14
[INFO] [stderr]     |
[INFO] [stderr] 129 |         for (key, value) in &self.accounts {
[INFO] [stderr]     |              ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/state_cache.rs:129:19
[INFO] [stderr]     |
[INFO] [stderr] 129 |         for (key, value) in &self.accounts {
[INFO] [stderr]     |                   ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/stateless_ext.rs:74:34
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
[INFO] [stderr]    |                                  ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/stateless_ext.rs:99:22
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn exists(&self, address: &Address) -> vm::Result<bool> {
[INFO] [stderr]    |                      ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:105:35
[INFO] [stderr]     |
[INFO] [stderr] 105 |     fn exists_and_not_null(&self, address: &Address) -> vm::Result<bool> {
[INFO] [stderr]     |                                   ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:117:23
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn balance(&self, address: &Address) -> vm::Result<U256> {
[INFO] [stderr]     |                       ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]    --> src/stateless_ext.rs:123:29
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn blockhash(&mut self, number: &U256) -> H256 {
[INFO] [stderr]     |                             ^^^^^^ help: consider prefixing with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         gas: &U256,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         value: &U256,
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code`
[INFO] [stderr]    --> src/stateless_ext.rs:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |         code: &[u8],
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_code`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_version`
[INFO] [stderr]    --> src/stateless_ext.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         parent_version: &U256,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_parent_version`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address_scheme`
[INFO] [stderr]    --> src/stateless_ext.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         address_scheme: CreateContractAddress,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_address_scheme`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `trap`
[INFO] [stderr]    --> src/stateless_ext.rs:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |         trap: bool,
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_trap`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         gas: &U256,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sender_address`
[INFO] [stderr]    --> src/stateless_ext.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |         sender_address: &Address,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_sender_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receive_address`
[INFO] [stderr]    --> src/stateless_ext.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         receive_address: &Address,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_receive_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         value: Option<U256>,
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/stateless_ext.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         data: &[u8],
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code_address`
[INFO] [stderr]    --> src/stateless_ext.rs:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |         code_address: &Address,
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_code_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `call_type`
[INFO] [stderr]    --> src/stateless_ext.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         call_type: CallType,
[INFO] [stderr]     |         ^^^^^^^^^ help: consider prefixing with an underscore: `_call_type`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `trap`
[INFO] [stderr]    --> src/stateless_ext.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         trap: bool,
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_trap`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:155:23
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn extcode(&self, address: &Address) -> vm::Result<Option<Arc<Bytes>>> {
[INFO] [stderr]     |                       ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:160:27
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn extcodehash(&self, address: &Address) -> vm::Result<Option<H256>> {
[INFO] [stderr]     |                           ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:164:27
[INFO] [stderr]     |
[INFO] [stderr] 164 |     fn extcodesize(&self, address: &Address) -> vm::Result<Option<usize>> {
[INFO] [stderr]     |                           ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `topics`
[INFO] [stderr]    --> src/stateless_ext.rs:168:23
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> vm::Result<()> {
[INFO] [stderr]     |                       ^^^^^^ help: consider prefixing with an underscore: `_topics`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/stateless_ext.rs:168:42
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> vm::Result<()> {
[INFO] [stderr]     |                                          ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:173:18
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
[INFO] [stderr]     |                  ^^^ help: consider prefixing with an underscore: `_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/stateless_ext.rs:173:30
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
[INFO] [stderr]     |                              ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `apply_state`
[INFO] [stderr]    --> src/stateless_ext.rs:173:49
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
[INFO] [stderr]     |                                                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_apply_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `refund_address`
[INFO] [stderr]    --> src/stateless_ext.rs:180:27
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn suicide(&mut self, refund_address: &Address) -> vm::Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_refund_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:201:37
[INFO] [stderr]     |
[INFO] [stderr] 201 |     fn add_sstore_refund(&mut self, value: usize) {
[INFO] [stderr]     |                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:205:37
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn sub_sstore_refund(&mut self, value: usize) {
[INFO] [stderr]     |                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]    --> src/stateless_ext.rs:209:42
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
[INFO] [stderr]     |                                          ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/stateless_ext.rs:209:53
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^ help: consider prefixing with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `current_gas`
[INFO] [stderr]    --> src/stateless_ext.rs:209:70
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
[INFO] [stderr]     |                                                                      ^^^^^^^^^^^ help: consider prefixing with an underscore: `_current_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]    --> src/stateless_ext.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 |         pc: usize,
[INFO] [stderr]     |         ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/stateless_ext.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |         instruction: u8,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas_cost`
[INFO] [stderr]    --> src/stateless_ext.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         gas_cost: U256,
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_gas_cost`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mem_written`
[INFO] [stderr]    --> src/stateless_ext.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         mem_written: Option<(usize, usize)>,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_mem_written`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store_written`
[INFO] [stderr]    --> src/stateless_ext.rs:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |         store_written: Option<(U256, U256)>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_store_written`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas_used`
[INFO] [stderr]    --> src/stateless_ext.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn trace_executed(&mut self, gas_used: U256, stack_push: &[U256], mem: &[u8]) {
[INFO] [stderr]     |                                  ^^^^^^^^ help: consider prefixing with an underscore: `_gas_used`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack_push`
[INFO] [stderr]    --> src/stateless_ext.rs:231:50
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn trace_executed(&mut self, gas_used: U256, stack_push: &[U256], mem: &[u8]) {
[INFO] [stderr]     |                                                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_stack_push`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mem`
[INFO] [stderr]    --> src/stateless_ext.rs:231:71
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn trace_executed(&mut self, gas_used: U256, stack_push: &[U256], mem: &[u8]) {
[INFO] [stderr]     |                                                                       ^^^ help: consider prefixing with an underscore: `_mem`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `call`
[INFO] [stderr]    --> src/stateless_vm.rs:134:45
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 vm::TrapError::Call(params, call) => {
[INFO] [stderr]     |                                             ^^^^ help: consider prefixing with an underscore: `_call`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `create`
[INFO] [stderr]    --> src/stateless_vm.rs:137:56
[INFO] [stderr]     |
[INFO] [stderr] 137 |                 vm::TrapError::Create(params, address, create) => Err(Error::InternalError(
[INFO] [stderr]     |                                                        ^^^^^^ help: consider prefixing with an underscore: `_create`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_state`
[INFO] [stderr]    --> src/state_cache.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn update_state(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]    --> src/state_cache.rs:129:14
[INFO] [stderr]     |
[INFO] [stderr] 129 |         for (key, value) in &self.accounts {
[INFO] [stderr]     |              ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/state_cache.rs:129:19
[INFO] [stderr]     |
[INFO] [stderr] 129 |         for (key, value) in &self.accounts {
[INFO] [stderr]     |                   ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/stateless_ext.rs:74:34
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
[INFO] [stderr]    |                                  ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/stateless_ext.rs:99:22
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn exists(&self, address: &Address) -> vm::Result<bool> {
[INFO] [stderr]    |                      ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:105:35
[INFO] [stderr]     |
[INFO] [stderr] 105 |     fn exists_and_not_null(&self, address: &Address) -> vm::Result<bool> {
[INFO] [stderr]     |                                   ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:117:23
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn balance(&self, address: &Address) -> vm::Result<U256> {
[INFO] [stderr]     |                       ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]    --> src/stateless_ext.rs:123:29
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn blockhash(&mut self, number: &U256) -> H256 {
[INFO] [stderr]     |                             ^^^^^^ help: consider prefixing with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         gas: &U256,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         value: &U256,
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code`
[INFO] [stderr]    --> src/stateless_ext.rs:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |         code: &[u8],
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_code`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `parent_version`
[INFO] [stderr]    --> src/stateless_ext.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         parent_version: &U256,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_parent_version`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address_scheme`
[INFO] [stderr]    --> src/stateless_ext.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         address_scheme: CreateContractAddress,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_address_scheme`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `trap`
[INFO] [stderr]    --> src/stateless_ext.rs:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |         trap: bool,
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_trap`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         gas: &U256,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sender_address`
[INFO] [stderr]    --> src/stateless_ext.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |         sender_address: &Address,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_sender_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `receive_address`
[INFO] [stderr]    --> src/stateless_ext.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         receive_address: &Address,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_receive_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         value: Option<U256>,
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/stateless_ext.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         data: &[u8],
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `code_address`
[INFO] [stderr]    --> src/stateless_ext.rs:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |         code_address: &Address,
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_code_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `call_type`
[INFO] [stderr]    --> src/stateless_ext.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         call_type: CallType,
[INFO] [stderr]     |         ^^^^^^^^^ help: consider prefixing with an underscore: `_call_type`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `trap`
[INFO] [stderr]    --> src/stateless_ext.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         trap: bool,
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_trap`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:155:23
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn extcode(&self, address: &Address) -> vm::Result<Option<Arc<Bytes>>> {
[INFO] [stderr]     |                       ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:160:27
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn extcodehash(&self, address: &Address) -> vm::Result<Option<H256>> {
[INFO] [stderr]     |                           ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:164:27
[INFO] [stderr]     |
[INFO] [stderr] 164 |     fn extcodesize(&self, address: &Address) -> vm::Result<Option<usize>> {
[INFO] [stderr]     |                           ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `topics`
[INFO] [stderr]    --> src/stateless_ext.rs:168:23
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> vm::Result<()> {
[INFO] [stderr]     |                       ^^^^^^ help: consider prefixing with an underscore: `_topics`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/stateless_ext.rs:168:42
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> vm::Result<()> {
[INFO] [stderr]     |                                          ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:173:18
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
[INFO] [stderr]     |                  ^^^ help: consider prefixing with an underscore: `_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/stateless_ext.rs:173:30
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
[INFO] [stderr]     |                              ^^^^ help: consider prefixing with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `apply_state`
[INFO] [stderr]    --> src/stateless_ext.rs:173:49
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn ret(self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
[INFO] [stderr]     |                                                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_apply_state`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `refund_address`
[INFO] [stderr]    --> src/stateless_ext.rs:180:27
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn suicide(&mut self, refund_address: &Address) -> vm::Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_refund_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:201:37
[INFO] [stderr]     |
[INFO] [stderr] 201 |     fn add_sstore_refund(&mut self, value: usize) {
[INFO] [stderr]     |                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/stateless_ext.rs:205:37
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn sub_sstore_refund(&mut self, value: usize) {
[INFO] [stderr]     |                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]    --> src/stateless_ext.rs:209:42
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
[INFO] [stderr]     |                                          ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/stateless_ext.rs:209:53
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
[INFO] [stderr]     |                                                     ^^^^^^^^^^^ help: consider prefixing with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `current_gas`
[INFO] [stderr]    --> src/stateless_ext.rs:209:70
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
[INFO] [stderr]     |                                                                      ^^^^^^^^^^^ help: consider prefixing with an underscore: `_current_gas`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pc`
[INFO] [stderr]    --> src/stateless_ext.rs:217:9
[INFO] [stderr]     |
[INFO] [stderr] 217 |         pc: usize,
[INFO] [stderr]     |         ^^ help: consider prefixing with an underscore: `_pc`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/stateless_ext.rs:218:9
[INFO] [stderr]     |
[INFO] [stderr] 218 |         instruction: u8,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas_cost`
[INFO] [stderr]    --> src/stateless_ext.rs:219:9
[INFO] [stderr]     |
[INFO] [stderr] 219 |         gas_cost: U256,
[INFO] [stderr]     |         ^^^^^^^^ help: consider prefixing with an underscore: `_gas_cost`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mem_written`
[INFO] [stderr]    --> src/stateless_ext.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         mem_written: Option<(usize, usize)>,
[INFO] [stderr]     |         ^^^^^^^^^^^ help: consider prefixing with an underscore: `_mem_written`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `store_written`
[INFO] [stderr]    --> src/stateless_ext.rs:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |         store_written: Option<(U256, U256)>,
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_store_written`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas_used`
[INFO] [stderr]    --> src/stateless_ext.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn trace_executed(&mut self, gas_used: U256, stack_push: &[U256], mem: &[u8]) {
[INFO] [stderr]     |                                  ^^^^^^^^ help: consider prefixing with an underscore: `_gas_used`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stack_push`
[INFO] [stderr]    --> src/stateless_ext.rs:231:50
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn trace_executed(&mut self, gas_used: U256, stack_push: &[U256], mem: &[u8]) {
[INFO] [stderr]     |                                                  ^^^^^^^^^^ help: consider prefixing with an underscore: `_stack_push`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mem`
[INFO] [stderr]    --> src/stateless_ext.rs:231:71
[INFO] [stderr]     |
[INFO] [stderr] 231 |     fn trace_executed(&mut self, gas_used: U256, stack_push: &[U256], mem: &[u8]) {
[INFO] [stderr]     |                                                                       ^^^ help: consider prefixing with an underscore: `_mem`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `call`
[INFO] [stderr]    --> src/stateless_vm.rs:134:45
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 vm::TrapError::Call(params, call) => {
[INFO] [stderr]     |                                             ^^^^ help: consider prefixing with an underscore: `_call`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `create`
[INFO] [stderr]    --> src/stateless_vm.rs:137:56
[INFO] [stderr]     |
[INFO] [stderr] 137 |                 vm::TrapError::Create(params, address, create) => Err(Error::InternalError(
[INFO] [stderr]     |                                                        ^^^^^^ help: consider prefixing with an underscore: `_create`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `update_state`
[INFO] [stderr]    --> src/state_cache.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn update_state(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 34s
[INFO] running `"docker" "inspect" "7346e278d2eabe735a3a9261c175a3bb0c7f6636bc73457ec5b6cc8ecba50ffe"`
[INFO] running `"docker" "rm" "-f" "7346e278d2eabe735a3a9261c175a3bb0c7f6636bc73457ec5b6cc8ecba50ffe"`
[INFO] [stdout] 7346e278d2eabe735a3a9261c175a3bb0c7f6636bc73457ec5b6cc8ecba50ffe