[INFO] fetching crate web30 0.4.2...
[INFO] checking web30-0.4.2 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate web30 0.4.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate web30 0.4.2 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web30 0.4.2
[INFO] finished tweaking crates.io crate web30 0.4.2
[INFO] tweaked toml for crates.io crate web30 0.4.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "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: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytecount v0.6.0
[INFO] [stderr]   Downloaded serde-rlp v0.1.4
[INFO] [stderr]   Downloaded secp256k1-sys v0.3.0
[INFO] [stderr]   Downloaded clarity v0.1.26
[INFO] [stderr]   Downloaded secp256k1 v0.19.0
[INFO] [stderr]   Downloaded num256 v0.2.12
[INFO] [stderr]   Downloaded block-padding v0.2.1
[INFO] [stderr]   Downloaded sha3 v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7615764d7ddfb94d3661716a892126abac1564cc604129bc3b00e424af054894
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7615764d7ddfb94d3661716a892126abac1564cc604129bc3b00e424af054894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7615764d7ddfb94d3661716a892126abac1564cc604129bc3b00e424af054894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7615764d7ddfb94d3661716a892126abac1564cc604129bc3b00e424af054894", kill_on_drop: false }`
[INFO] [stdout] 7615764d7ddfb94d3661716a892126abac1564cc604129bc3b00e424af054894
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dd2ded05ed56602a40782fd97b2970acf7c95e081447525961e04fc68167bf4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2dd2ded05ed56602a40782fd97b2970acf7c95e081447525961e04fc68167bf4", kill_on_drop: false }`
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[INFO] [stderr]     Checking parking_lot v0.7.1
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[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking serde-rlp v0.1.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]    Compiling num-derive v0.3.2
[INFO] [stderr]    Compiling actix_derive v0.3.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking trust-dns-proto v0.6.3
[INFO] [stderr]     Checking trust-dns-proto v0.5.0
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[INFO] [stderr]     Checking v_htmlescape v0.4.5
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[INFO] [stderr]     Checking actix v0.7.9
[INFO] [stderr]     Checking actix-net v0.2.6
[INFO] [stderr]     Checking num256 v0.2.12
[INFO] [stderr]     Checking clarity v0.1.26
[INFO] [stderr]     Checking web30 v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/client.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |             /// XXX: Technically it doesn't need to be Uint256, but since send_raw_transaction is
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/client.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             /// returning it we'll keep it consistent.
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream`
[INFO] [stdout]   --> src/client.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use futures::stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:41:39
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn eth_accounts(&self) -> Box<Future<Item = Vec<Address>, Error = Error>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Vec<Address>, Error = Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:45:38
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn net_version(&self) -> Box<Future<Item = String, Error = Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     ) -> Box<Future<Item = Vec<Log>, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Vec<Log>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:68:14
[INFO] [stdout]    |
[INFO] [stdout] 68 |     ) -> Box<Future<Item = bool, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = bool, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:78:14
[INFO] [stdout]    |
[INFO] [stdout] 78 |     ) -> Box<Future<Item = Vec<Log>, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Vec<Log>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:92:40
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn eth_gas_price(&self) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:96:60
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn eth_get_balance(&self, address: Address) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:112:14
[INFO] [stdout]     |
[INFO] [stdout] 112 |     ) -> Box<Future<Item = Data, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Data, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:116:43
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn eth_block_number(&self) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:124:14
[INFO] [stdout]     |
[INFO] [stdout] 124 |     ) -> Box<Future<Item = Block, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Block, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:132:14
[INFO] [stdout]     |
[INFO] [stdout] 132 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:141:14
[INFO] [stdout]     |
[INFO] [stdout] 141 |     ) -> Box<Future<Item = Option<TransactionResponse>, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<TransactionResponse>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:149:39
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn evm_snapshot(&self) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:153:59
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn evm_revert(&self, snapshot_id: Uint256) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:166:14
[INFO] [stdout]     |
[INFO] [stdout] 166 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:204:14
[INFO] [stdout]     |
[INFO] [stdout] 204 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:239:14
[INFO] [stdout]     |
[INFO] [stdout] 239 |     ) -> Box<Future<Item = Option<Log>, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<Log>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:261:14
[INFO] [stdout]     |
[INFO] [stdout] 261 |     ) -> Box<Future<Item = TransactionResponse, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = TransactionResponse, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:284:14
[INFO] [stdout]     |
[INFO] [stdout] 284 |     ) -> Box<Future<Item = Log, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Log, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/jsonrpc/client.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ) -> Box<Future<Item = R, Error = Error>>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = R, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/jsonrpc/client.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ) -> Box<Future<Item = R, Error = Error>>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = R, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/client.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |             /// XXX: Technically it doesn't need to be Uint256, but since send_raw_transaction is
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/client.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             /// returning it we'll keep it consistent.
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream`
[INFO] [stdout]   --> src/client.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use futures::stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:41:39
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn eth_accounts(&self) -> Box<Future<Item = Vec<Address>, Error = Error>> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Vec<Address>, Error = Error>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:45:38
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn net_version(&self) -> Box<Future<Item = String, Error = Error>> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = String, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 |     ) -> Box<Future<Item = Vec<Log>, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Vec<Log>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:68:14
[INFO] [stdout]    |
[INFO] [stdout] 68 |     ) -> Box<Future<Item = bool, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = bool, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:78:14
[INFO] [stdout]    |
[INFO] [stdout] 78 |     ) -> Box<Future<Item = Vec<Log>, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Vec<Log>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:92:40
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn eth_gas_price(&self) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:96:60
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn eth_get_balance(&self, address: Address) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:105:14
[INFO] [stdout]     |
[INFO] [stdout] 105 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:112:14
[INFO] [stdout]     |
[INFO] [stdout] 112 |     ) -> Box<Future<Item = Data, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Data, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:116:43
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn eth_block_number(&self) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:124:14
[INFO] [stdout]     |
[INFO] [stdout] 124 |     ) -> Box<Future<Item = Block, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Block, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:132:14
[INFO] [stdout]     |
[INFO] [stdout] 132 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:141:14
[INFO] [stdout]     |
[INFO] [stdout] 141 |     ) -> Box<Future<Item = Option<TransactionResponse>, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<TransactionResponse>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:149:39
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn evm_snapshot(&self) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:153:59
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn evm_revert(&self, snapshot_id: Uint256) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:166:14
[INFO] [stdout]     |
[INFO] [stdout] 166 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:204:14
[INFO] [stdout]     |
[INFO] [stdout] 204 |     ) -> Box<Future<Item = Uint256, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Uint256, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:239:14
[INFO] [stdout]     |
[INFO] [stdout] 239 |     ) -> Box<Future<Item = Option<Log>, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Option<Log>, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:261:14
[INFO] [stdout]     |
[INFO] [stdout] 261 |     ) -> Box<Future<Item = TransactionResponse, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = TransactionResponse, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:284:14
[INFO] [stdout]     |
[INFO] [stdout] 284 |     ) -> Box<Future<Item = Log, Error = Error>> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Log, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/jsonrpc/client.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     ) -> Box<Future<Item = R, Error = Error>>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = R, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/jsonrpc/client.rs:52:14
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ) -> Box<Future<Item = R, Error = Error>>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = R, Error = Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 23s
[INFO] running `Command { std: "docker" "inspect" "2dd2ded05ed56602a40782fd97b2970acf7c95e081447525961e04fc68167bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dd2ded05ed56602a40782fd97b2970acf7c95e081447525961e04fc68167bf4", kill_on_drop: false }`
[INFO] [stdout] 2dd2ded05ed56602a40782fd97b2970acf7c95e081447525961e04fc68167bf4
