[INFO] fetching crate web3_etz 0.1.0...
[INFO] checking web3_etz-0.1.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] extracting crate web3_etz 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate web3_etz 0.1.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web3_etz 0.1.0
[INFO] finished tweaking crates.io crate web3_etz 0.1.0
[INFO] tweaked toml for crates.io crate web3_etz 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 186 packages
[INFO] [stderr]       Adding arrayvec v0.4.12 (latest: v0.7.4)
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[INFO] [stderr]       Adding crossbeam-utils v0.7.2 (latest: v0.8.19)
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[INFO] [stderr]       Adding ethabi v8.0.1 (latest: v18.0.0)
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[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
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[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding http v0.1.21 (latest: v1.1.0)
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[INFO] [stderr]       Adding jsonrpc-core v13.2.0 (latest: v18.0.0)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ethereum-types v0.6.0
[INFO] [stderr]   Downloaded heapsize v0.4.2
[INFO] [stderr]   Downloaded impl-rlp v0.2.1
[INFO] [stderr]   Downloaded ethbloom v0.6.4
[INFO] [stderr]   Downloaded tokio-timer v0.1.2
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[INFO] [stderr]   Downloaded impl-serde v0.2.3
[INFO] [stderr]   Downloaded rlp v0.4.6
[INFO] [stderr]   Downloaded jsonrpc-core v13.2.0
[INFO] [stderr]   Downloaded tokio-uds v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a4f5f6a3cac6b04cac6541e0c11f6836152580e7c6c2af3497d4615cad32744
[INFO] running `Command { std: "docker" "start" "-a" "5a4f5f6a3cac6b04cac6541e0c11f6836152580e7c6c2af3497d4615cad32744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a4f5f6a3cac6b04cac6541e0c11f6836152580e7c6c2af3497d4615cad32744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a4f5f6a3cac6b04cac6541e0c11f6836152580e7c6c2af3497d4615cad32744", kill_on_drop: false }`
[INFO] [stdout] 5a4f5f6a3cac6b04cac6541e0c11f6836152580e7c6c2af3497d4615cad32744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d8301a6772bfdcf8fc61bafbb813fca5c4582830acc5662fb9a34bfeaa379fa
[INFO] running `Command { std: "docker" "start" "-a" "7d8301a6772bfdcf8fc61bafbb813fca5c4582830acc5662fb9a34bfeaa379fa", kill_on_drop: false }`
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[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking either v1.10.0
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
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[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]    Compiling version_check v0.1.5
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[INFO] [stderr]     Checking static_assertions v0.2.5
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[INFO] [stderr]    Compiling memchr v2.7.2
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[INFO] [stderr]    Compiling unicode-xid v0.1.0
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[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking uint v0.7.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling regex-syntax v0.8.3
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[INFO] [stderr]     Checking aho-corasick v1.1.3
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[INFO] [stderr]     Checking tokio-threadpool v0.1.18
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[INFO] [stderr]     Checking futures-cpupool v0.1.8
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[INFO] [stderr]    Compiling lazy_static v1.4.0
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[INFO] [stderr]     Checking tokio v0.1.22
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[INFO] [stderr]     Checking tokio-uds v0.1.7
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking openssl v0.10.64
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking tokio-tls v0.2.1
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[INFO] [stderr]     Checking impl-serde v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ethbloom v0.6.4
[INFO] [stderr]     Checking impl-codec v0.2.0
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[INFO] [stderr]     Checking jsonrpc-core v13.2.0
[INFO] [stderr]     Checking ethereum-types v0.6.0
[INFO] [stderr]     Checking ethabi v8.0.1
[INFO] [stderr]     Checking web3_etz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/helpers.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde;
[INFO] [stdout]   |     ^^^^^ the item `serde` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/helpers.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/api/eth_subscribe.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde;
[INFO] [stdout]    |     ^^^^^ the item `serde` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/api/eth_subscribe.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/contract/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/contract/deploy.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/contract/result.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/contract/result.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde;
[INFO] [stdout]   |     ^^^^^ the item `serde` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/batch.rs:7:15
[INFO] [stdout]    |
[INFO] [stdout] 7  | use futures::{self, future, Future};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `base64` is imported redundantly
[INFO] [stdout]   --> src/transports/http.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use base64;
[INFO] [stdout]    |     ^^^^^^ the item `base64` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/http.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | use futures::{self, future, Future, Stream};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/transports/http.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/ipc.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::{self, Future, Stream};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/ws.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | use futures::{self, Future, Sink, Stream};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/shared.rs:5:15
[INFO] [stdout]    |
[INFO] [stdout] 5  | use futures::{self, Future};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/types/log.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BigEndianHash`
[INFO] [stdout]  --> src/types/uint.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use ethereum_types::{BigEndianHash, Bloom as H2048, H128, H160, H256, H512, H520, H64, U128, U256, U64};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/types/work.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::{self, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/helpers.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde;
[INFO] [stdout]   |     ^^^^^ the item `serde` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/helpers.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/helpers.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     use futures;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/helpers.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/api/eth_filter.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]   --> src/api/eth_subscribe.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use serde;
[INFO] [stdout]    |     ^^^^^ the item `serde` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/api/eth_subscribe.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/contract/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/contract/deploy.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/contract/result.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/contract/result.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde;
[INFO] [stdout]   |     ^^^^^ the item `serde` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/batch.rs:7:15
[INFO] [stdout]    |
[INFO] [stdout] 7  | use futures::{self, future, Future};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `base64` is imported redundantly
[INFO] [stdout]   --> src/transports/http.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use base64;
[INFO] [stdout]    |     ^^^^^^ the item `base64` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/http.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | use futures::{self, future, Future, Stream};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/transports/http.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/ipc.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::{self, Future, Stream};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]    --> src/transports/ipc.rs:383:19
[INFO] [stdout]     |
[INFO] [stdout] 383 |     use futures::{self, Future};
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:16:1
[INFO] [stdout]     |
[INFO] [stdout] 16  | pub extern crate futures;
[INFO] [stdout]     | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/ws.rs:18:15
[INFO] [stdout]    |
[INFO] [stdout] 18 | use futures::{self, Future, Sink, Stream};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]   --> src/transports/shared.rs:5:15
[INFO] [stdout]    |
[INFO] [stdout] 5  | use futures::{self, Future};
[INFO] [stdout]    |               ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub extern crate futures;
[INFO] [stdout]    | ------------------------- the item `futures` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]  --> src/types/log.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ethabi;
[INFO] [stdout]   |     ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ethabi` is imported redundantly
[INFO] [stdout]    --> src/types/log.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 179 |     use ethabi;
[INFO] [stdout]     |         ^^^^^^ the item `ethabi` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/types/sync_state.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/types/traces.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 146 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]    --> src/types/transaction.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     use serde_json;
[INFO] [stdout]     |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/types/transaction_request.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/types/uint.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     use serde_json;
[INFO] [stdout]   |         ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/types/work.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::{self, Value};
[INFO] [stdout]   |                  ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `url` is never read
[INFO] [stdout]   --> src/transports/ws.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct WebSocket {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 43 |     id: Arc<atomic::AtomicUsize>,
[INFO] [stdout] 44 |     url: Url,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebSocket` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `web3_etz` in `web3_etz`
[INFO] [stdout]  --> examples/pubsub.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let web3_etz = web3_etz::web3_etz::new(ws.clone());
[INFO] [stdout]   |                              ^^^^^^^^ could not find `web3_etz` in `web3_etz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `web3`
[INFO] [stdout]  --> examples/simple_ipc.rs:6:28
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let (_el, transport) = web3::transports::Ipc::new("./jsonrpc.ipc").unwrap();
[INFO] [stdout]   |                            ^^^^ use of undeclared crate or module `web3`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 3 + use web3_etz::transports::Ipc;
[INFO] [stdout]   |
[INFO] [stdout] help: if you import `Ipc`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 6 -     let (_el, transport) = web3::transports::Ipc::new("./jsonrpc.ipc").unwrap();
[INFO] [stdout] 6 +     let (_el, transport) = Ipc::new("./jsonrpc.ipc").unwrap();
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Future`
[INFO] [stdout]  --> examples/pubsub.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use web3_etz::futures::{Future, Stream};
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Stream`
[INFO] [stdout]  --> examples/pubsub.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | use web3_etz::futures::{Future, Stream};
[INFO] [stdout]   |                                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `web3_etz` in `web3_etz`
[INFO] [stdout]   --> examples/batch.rs:16:30
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let web3_etz = web3_etz::web3_etz::new(web3_etz::transports::Batch::new(http));
[INFO] [stdout]    |                              ^^^^^^^^ could not find `web3_etz` in `web3_etz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `web3_etz::futures::Future`
[INFO] [stdout]  --> examples/batch.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use web3_etz::futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `web3_etz` (example "pubsub") due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `web3_etz` (example "simple_ipc") due to 2 previous errors
[INFO] [stderr] error: could not compile `web3_etz` (example "batch") due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: field `url` is never read
[INFO] [stdout]   --> src/transports/ws.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct WebSocket {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 43 |     id: Arc<atomic::AtomicUsize>,
[INFO] [stdout] 44 |     url: Url,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WebSocket` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `web3_etz` in `web3_etz`
[INFO] [stdout]   --> examples/ipc.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let web3_etz = web3_etz::web3_etz::new(ipc);
[INFO] [stdout]    |                              ^^^^^^^^ could not find `web3_etz` in `web3_etz`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `web3_etz::futures::Future`
[INFO] [stdout]  --> examples/ipc.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use web3_etz::futures::Future;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `web3_etz` (example "ipc") due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7d8301a6772bfdcf8fc61bafbb813fca5c4582830acc5662fb9a34bfeaa379fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8301a6772bfdcf8fc61bafbb813fca5c4582830acc5662fb9a34bfeaa379fa", kill_on_drop: false }`
[INFO] [stdout] 7d8301a6772bfdcf8fc61bafbb813fca5c4582830acc5662fb9a34bfeaa379fa
[INFO] checking web3_etz-0.1.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] extracting crate web3_etz 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate web3_etz 0.1.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web3_etz 0.1.0
[INFO] finished tweaking crates.io crate web3_etz 0.1.0
[INFO] tweaked toml for crates.io crate web3_etz 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1ec32021ec490568c02d69cf921b23d5a292f0cdace9c34242cf862120bc122
[INFO] running `Command { std: "docker" "start" "-a" "c1ec32021ec490568c02d69cf921b23d5a292f0cdace9c34242cf862120bc122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1ec32021ec490568c02d69cf921b23d5a292f0cdace9c34242cf862120bc122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ec32021ec490568c02d69cf921b23d5a292f0cdace9c34242cf862120bc122", kill_on_drop: false }`
[INFO] [stdout] c1ec32021ec490568c02d69cf921b23d5a292f0cdace9c34242cf862120bc122
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00672e8afdc95db9a529c3e409504aeb0f9c7bf83830626c3d59ba505338c3be
[INFO] running `Command { std: "docker" "start" "-a" "00672e8afdc95db9a529c3e409504aeb0f9c7bf83830626c3d59ba505338c3be", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "00672e8afdc95db9a529c3e409504aeb0f9c7bf83830626c3d59ba505338c3be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00672e8afdc95db9a529c3e409504aeb0f9c7bf83830626c3d59ba505338c3be", kill_on_drop: false }`
[INFO] [stdout] 00672e8afdc95db9a529c3e409504aeb0f9c7bf83830626c3d59ba505338c3be