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[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e52b86a84d58c31cc4b8d27538d37f08fe2c8fb
[INFO] checking b00f/durian against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb00f%2Fdurian" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/b00f/durian on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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-8/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e807d58472bea96ac09d5b9a323b59cb7998131b8f5f87e20a587725988d0720
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[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/state_cache.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         /// TODO
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 51 |         let _ret = self.accounts.get_mut().insert(address, acc);
[INFO] [stderr]    |         -------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/state_cache.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |               /// let storage = self.provider.storage_at(address, key)?;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 73 | /             let storage = self
[INFO] [stderr] 74 | |                 .provider
[INFO] [stderr] 75 | |                 .storage_at(address, key)
[INFO] [stderr] 76 | |                 .unwrap_or(H256::zero());
[INFO] [stderr]    | |_________________________________________- rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/state_cache.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         /// TEMP
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 87 |         self.provider.set_storage(address, key, value);
[INFO] [stderr]    |         ---------------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/state_cache.rs:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 |         /// TEMP
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 139 |         self.provider.init_code(address, code);
[INFO] [stderr]     |         -------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/state_cache.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         /// TODO
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 51 |         let _ret = self.accounts.get_mut().insert(address, acc);
[INFO] [stderr]    |         -------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/state_cache.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |               /// let storage = self.provider.storage_at(address, key)?;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 73 | /             let storage = self
[INFO] [stderr] 74 | |                 .provider
[INFO] [stderr] 75 | |                 .storage_at(address, key)
[INFO] [stderr] 76 | |                 .unwrap_or(H256::zero());
[INFO] [stderr]    | |_________________________________________- rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/state_cache.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         /// TEMP
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 87 |         self.provider.set_storage(address, key, value);
[INFO] [stderr]    |         ---------------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/state_cache.rs:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 |         /// TEMP
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 139 |         self.provider.init_code(address, code);
[INFO] [stderr]     |         -------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `OutputPolicy`, `substate::Substate`
[INFO] [stderr]  --> src/stateless_ext.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 |     externalities::{OutputPolicy},
[INFO] [stderr]   |                     ^^^^^^^^^^^^
[INFO] [stderr] 6 |     substate::Substate,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Tracer`, `VMTracer`
[INFO] [stderr]   --> src/stateless_ext.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use trace::{Tracer, VMTracer};
[INFO] [stderr]    |             ^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `StateAccount`
[INFO] [stderr]  --> src/state_cache.rs:2:22
[INFO] [stderr]   |
[INFO] [stderr] 2 | use state_provider::{StateAccount, StateProvider};
[INFO] [stderr]   |                      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BTreeMap`, `BTreeSet`, `HashSet`, `RefMut`, `collections::hash_map::Entry`, `fmt`, `sync::Arc`
[INFO] [stderr]  --> src/state_cache.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 |     cell::{RefCell, RefMut},
[INFO] [stderr]   |                     ^^^^^^
[INFO] [stderr] 5 |     collections::hash_map::Entry,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 6 |     collections::{BTreeMap, BTreeSet, HashMap, HashSet},
[INFO] [stderr]   |                   ^^^^^^^^  ^^^^^^^^           ^^^^^^^
[INFO] [stderr] 7 |     fmt,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 8 |     sync::Arc,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_cache.rs:33:23
[INFO] [stderr]    |
[INFO] [stderr] 33 |     provider: &'a mut StateProvider,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn StateProvider`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_cache.rs:38:34
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(provider: &'a mut StateProvider) -> Self {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn StateProvider`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/stateless_ext.rs:80:34
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
[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: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 |     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:107:35
[INFO] [stderr]     |
[INFO] [stderr] 107 |     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:119:23
[INFO] [stderr]     |
[INFO] [stderr] 119 |     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:125:29
[INFO] [stderr]     |
[INFO] [stderr] 125 |     fn blockhash(&mut self, number: &U256) -> H256 {
[INFO] [stderr]     |                             ^^^^^^ help: consider prefixing with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `OutputPolicy`, `substate::Substate`
[INFO] [stderr]  --> src/stateless_ext.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 |     externalities::{OutputPolicy},
[INFO] [stderr]   |                     ^^^^^^^^^^^^
[INFO] [stderr] 6 |     substate::Substate,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Tracer`, `VMTracer`
[INFO] [stderr]   --> src/stateless_ext.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 | use trace::{Tracer, VMTracer};
[INFO] [stderr]    |             ^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `StateAccount`
[INFO] [stderr]  --> src/state_cache.rs:2:22
[INFO] [stderr]   |
[INFO] [stderr] 2 | use state_provider::{StateAccount, StateProvider};
[INFO] [stderr]   |                      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |         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:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         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:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         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:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |         parent_version: &U256,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_parent_version`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BTreeMap`, `BTreeSet`, `HashSet`, `RefMut`, `collections::hash_map::Entry`, `fmt`, `sync::Arc`
[INFO] [stderr]  --> src/state_cache.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 |     cell::{RefCell, RefMut},
[INFO] [stderr]   |                     ^^^^^^
[INFO] [stderr] 5 |     collections::hash_map::Entry,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 6 |     collections::{BTreeMap, BTreeSet, HashMap, HashSet},
[INFO] [stderr]   |                   ^^^^^^^^  ^^^^^^^^           ^^^^^^^
[INFO] [stderr] 7 |     fmt,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 8 |     sync::Arc,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address_scheme`
[INFO] [stderr]    --> src/stateless_ext.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         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:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         trap: bool,
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_trap`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_cache.rs:33:23
[INFO] [stderr]    |
[INFO] [stderr] 33 |     provider: &'a mut StateProvider,
[INFO] [stderr]    |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn StateProvider`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `gas`
[INFO] [stderr]    --> src/stateless_ext.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         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:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         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:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         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:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |         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:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         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:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         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:150:9
[INFO] [stderr]     |
[INFO] [stderr] 150 |         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:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         trap: bool,
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_trap`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/state_cache.rs:38:34
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new(provider: &'a mut StateProvider) -> Self {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^ help: use `dyn`: `dyn StateProvider`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:157:23
[INFO] [stderr]     |
[INFO] [stderr] 157 |     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:162:27
[INFO] [stderr]     |
[INFO] [stderr] 162 |     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:166:27
[INFO] [stderr]     |
[INFO] [stderr] 166 |     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:170:23
[INFO] [stderr]     |
[INFO] [stderr] 170 |     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:170:42
[INFO] [stderr]     |
[INFO] [stderr] 170 |     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:175:18
[INFO] [stderr]     |
[INFO] [stderr] 175 |     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:175:30
[INFO] [stderr]     |
[INFO] [stderr] 175 |     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:175:49
[INFO] [stderr]     |
[INFO] [stderr] 175 |     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:182:27
[INFO] [stderr]     |
[INFO] [stderr] 182 |     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:204:37
[INFO] [stderr]     |
[INFO] [stderr] 204 |     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:208:37
[INFO] [stderr]     |
[INFO] [stderr] 208 |     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:212:42
[INFO] [stderr]     |
[INFO] [stderr] 212 |     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:212:53
[INFO] [stderr]     |
[INFO] [stderr] 212 |     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:212:70
[INFO] [stderr]     |
[INFO] [stderr] 212 |     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:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         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:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |         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:222:9
[INFO] [stderr]     |
[INFO] [stderr] 222 |         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:223:9
[INFO] [stderr]     |
[INFO] [stderr] 223 |         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:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         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:234:34
[INFO] [stderr]     |
[INFO] [stderr] 234 |     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:234:50
[INFO] [stderr]     |
[INFO] [stderr] 234 |     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:234:71
[INFO] [stderr]     |
[INFO] [stderr] 234 |     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: `num`
[INFO] [stderr]   --> src/state_cache.rs:90:29
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn blockhash(&self, num: i64) -> U512 {
[INFO] [stderr]    |                             ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/state_cache.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn exist(&self, address: Address) -> bool {
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/stateless_ext.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut cache = StateCache::new(provider);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/stateless_ext.rs:80:34
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
[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: `address`
[INFO] [stderr]    --> src/stateless_ext.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 |     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:107:35
[INFO] [stderr]     |
[INFO] [stderr] 107 |     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:119:23
[INFO] [stderr]     |
[INFO] [stderr] 119 |     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:125:29
[INFO] [stderr]     |
[INFO] [stderr] 125 |     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:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |         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:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |         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:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |         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:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |         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:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         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:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         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:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         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:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         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:146:9
[INFO] [stderr]     |
[INFO] [stderr] 146 |         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:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |         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:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         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:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         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:150:9
[INFO] [stderr]     |
[INFO] [stderr] 150 |         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:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         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:157:23
[INFO] [stderr]     |
[INFO] [stderr] 157 |     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:162:27
[INFO] [stderr]     |
[INFO] [stderr] 162 |     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:166:27
[INFO] [stderr]     |
[INFO] [stderr] 166 |     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:170:23
[INFO] [stderr]     |
[INFO] [stderr] 170 |     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:170:42
[INFO] [stderr]     |
[INFO] [stderr] 170 |     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:175:18
[INFO] [stderr]     |
[INFO] [stderr] 175 |     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:175:30
[INFO] [stderr]     |
[INFO] [stderr] 175 |     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:175:49
[INFO] [stderr]     |
[INFO] [stderr] 175 |     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:182:27
[INFO] [stderr]     |
[INFO] [stderr] 182 |     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:204:37
[INFO] [stderr]     |
[INFO] [stderr] 204 |     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:208:37
[INFO] [stderr]     |
[INFO] [stderr] 208 |     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:212:42
[INFO] [stderr]     |
[INFO] [stderr] 212 |     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:212:53
[INFO] [stderr]     |
[INFO] [stderr] 212 |     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:212:70
[INFO] [stderr]     |
[INFO] [stderr] 212 |     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:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         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:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |         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:222:9
[INFO] [stderr]     |
[INFO] [stderr] 222 |         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:223:9
[INFO] [stderr]     |
[INFO] [stderr] 223 |         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:224:9
[INFO] [stderr]     |
[INFO] [stderr] 224 |         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:234:34
[INFO] [stderr]     |
[INFO] [stderr] 234 |     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:234:50
[INFO] [stderr]     |
[INFO] [stderr] 234 |     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:234:71
[INFO] [stderr]     |
[INFO] [stderr] 234 |     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: `num`
[INFO] [stderr]   --> src/state_cache.rs:90:29
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub fn blockhash(&self, num: i64) -> U512 {
[INFO] [stderr]    |                             ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]   --> src/state_cache.rs:94:25
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn exist(&self, address: Address) -> bool {
[INFO] [stderr]    |                         ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/stateless_ext.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut cache = StateCache::new(provider);
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 54s
[INFO] running `"docker" "inspect" "e807d58472bea96ac09d5b9a323b59cb7998131b8f5f87e20a587725988d0720"`
[INFO] running `"docker" "rm" "-f" "e807d58472bea96ac09d5b9a323b59cb7998131b8f5f87e20a587725988d0720"`
[INFO] [stdout] e807d58472bea96ac09d5b9a323b59cb7998131b8f5f87e20a587725988d0720