[INFO] fetching crate ethers-providers 2.0.11...
[INFO] checking ethers-providers-2.0.11 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate ethers-providers 2.0.11 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ethers-providers 2.0.11 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethers-providers 2.0.11
[INFO] finished tweaking crates.io crate ethers-providers 2.0.11
[INFO] tweaked toml for crates.io crate ethers-providers 2.0.11 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-test-macro v0.2.4
[INFO] [stderr]   Downloaded async_io_stream v0.3.3
[INFO] [stderr]   Downloaded tracing-test v0.2.4
[INFO] [stderr]   Downloaded auto_impl v1.1.2
[INFO] [stderr]   Downloaded send_wrapper v0.6.0
[INFO] [stderr]   Downloaded enr v0.9.1
[INFO] [stderr]   Downloaded send_wrapper v0.4.0
[INFO] [stderr]   Downloaded ws_stream_wasm v0.7.4
[INFO] [stderr]   Downloaded pharos v0.5.3
[INFO] [stderr]   Downloaded ethers-core v2.0.13
[INFO] [stderr]   Downloaded hashers v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8466ca6372eb936e152f3392bd4d936f37bc2e5be2359f6b3ec04207b8da5fa
[INFO] running `Command { std: "docker" "start" "-a" "c8466ca6372eb936e152f3392bd4d936f37bc2e5be2359f6b3ec04207b8da5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8466ca6372eb936e152f3392bd4d936f37bc2e5be2359f6b3ec04207b8da5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8466ca6372eb936e152f3392bd4d936f37bc2e5be2359f6b3ec04207b8da5fa", kill_on_drop: false }`
[INFO] [stdout] c8466ca6372eb936e152f3392bd4d936f37bc2e5be2359f6b3ec04207b8da5fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81221757078e1cb8529943eddaa794b178ef84cfe9f99026141831040c4e82fb
[INFO] running `Command { std: "docker" "start" "-a" "81221757078e1cb8529943eddaa794b178ef84cfe9f99026141831040c4e82fb", kill_on_drop: false }`
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[INFO] [stderr]     Checking der v0.7.8
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_json v1.0.113
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[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
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[INFO] [stderr]     Checking crypto-bigint v0.5.5
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[INFO] [stderr]    Compiling auto_impl v1.1.2
[INFO] [stderr]     Checking elliptic-curve v0.13.8
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[INFO] [stderr]    Compiling async-trait v0.1.77
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[INFO] [stderr]    Compiling rlp-derive v0.1.0
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[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling open-fastrlp-derive v0.1.1
[INFO] [stderr]    Compiling tracing-test-macro v0.2.4
[INFO] [stderr]     Checking tracing-test v0.2.4
[INFO] [stderr]     Checking gloo-timers v0.2.6
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[INFO] [stderr]     Checking parity-scale-codec v3.6.9
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[INFO] [stderr]     Checking primitive-types v0.12.2
[INFO] [stderr]     Checking ethbloom v0.13.0
[INFO] [stderr]     Checking ethereum-types v0.14.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking ethabi v18.0.0
[INFO] [stderr]     Checking open-fastrlp v0.1.4
[INFO] [stderr]     Checking tokio-tungstenite v0.20.1
[INFO] [stderr]     Checking h2 v0.3.24
[INFO] [stderr]     Checking ethers-core v2.0.13
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.24
[INFO] [stderr]     Checking ethers-providers v2.0.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rpc/transports/common.rs:120:36
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(&'a ());
[INFO] [stdout]     |                ---------------     ^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(());
[INFO] [stdout]     |                                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rpc/transports/common.rs:120:36
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(&'a ());
[INFO] [stdout]     |                ---------------     ^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(());
[INFO] [stdout]     |                                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.96s
[INFO] running `Command { std: "docker" "inspect" "81221757078e1cb8529943eddaa794b178ef84cfe9f99026141831040c4e82fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81221757078e1cb8529943eddaa794b178ef84cfe9f99026141831040c4e82fb", kill_on_drop: false }`
[INFO] [stdout] 81221757078e1cb8529943eddaa794b178ef84cfe9f99026141831040c4e82fb
[INFO] checking ethers-providers-2.0.11 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate ethers-providers 2.0.11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ethers-providers 2.0.11 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ethers-providers 2.0.11
[INFO] finished tweaking crates.io crate ethers-providers 2.0.11
[INFO] tweaked toml for crates.io crate ethers-providers 2.0.11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8bb8ceaac4fd4bc67582d48def96974d89913dda4b378b5c8477e73a588dccd
[INFO] running `Command { std: "docker" "start" "-a" "d8bb8ceaac4fd4bc67582d48def96974d89913dda4b378b5c8477e73a588dccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8bb8ceaac4fd4bc67582d48def96974d89913dda4b378b5c8477e73a588dccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8bb8ceaac4fd4bc67582d48def96974d89913dda4b378b5c8477e73a588dccd", kill_on_drop: false }`
[INFO] [stdout] d8bb8ceaac4fd4bc67582d48def96974d89913dda4b378b5c8477e73a588dccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunexpected_cfgs" "-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 07db2f4efd9c200775559fe2621dd6d0f7f2f9ab87a088eb62f82a15e4ecae0f
[INFO] running `Command { std: "docker" "start" "-a" "07db2f4efd9c200775559fe2621dd6d0f7f2f9ab87a088eb62f82a15e4ecae0f", kill_on_drop: false }`
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]    Compiling toml_edit v0.20.7
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.90
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking der v0.7.8
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking fixed-hash v0.8.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking spki v0.7.3
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[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.90
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling strum_macros v0.25.3
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking regex-automata v0.1.10
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[INFO] [stderr]    Compiling proc-macro-crate v2.0.0
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[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.90
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling auto_impl v1.1.2
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]     Checking data-encoding v2.5.0
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking webpki-roots v0.25.4
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking pem v1.1.1
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking simple_asn1 v0.6.2
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking k256 v0.13.3
[INFO] [stderr]     Checking chrono v0.4.33
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]     Checking wasm-bindgen v0.2.90
[INFO] [stderr]     Checking tempfile v3.10.0
[INFO] [stderr]     Checking const-hex v1.10.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking send_wrapper v0.4.0
[INFO] [stderr]     Checking hashers v1.0.1
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling num_enum_derive v0.7.2
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking js-sys v0.3.67
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking num_enum v0.7.2
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.2
[INFO] [stderr]    Compiling rlp-derive v0.1.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v3.6.9
[INFO] [stderr]    Compiling scale-info-derive v2.10.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling open-fastrlp-derive v0.1.1
[INFO] [stderr]    Compiling tracing-test-macro v0.2.4
[INFO] [stderr]     Checking tracing-test v0.2.4
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking gloo-timers v0.2.6
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking rlp v0.5.2
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking impl-rlp v0.3.0
[INFO] [stderr]     Checking enr v0.9.1
[INFO] [stderr]     Checking jsonwebtoken v8.3.0
[INFO] [stderr]     Checking parity-scale-codec v3.6.9
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking tungstenite v0.20.1
[INFO] [stderr]     Checking impl-codec v0.6.0
[INFO] [stderr]     Checking scale-info v2.10.0
[INFO] [stderr]     Checking ethbloom v0.13.0
[INFO] [stderr]     Checking primitive-types v0.12.2
[INFO] [stderr]     Checking ethereum-types v0.14.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking open-fastrlp v0.1.4
[INFO] [stderr]     Checking ethabi v18.0.0
[INFO] [stderr]     Checking tokio-tungstenite v0.20.1
[INFO] [stderr]     Checking h2 v0.3.24
[INFO] [stderr]     Checking ethers-core v2.0.13
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-rustls v0.24.2
[INFO] [stderr]     Checking reqwest v0.11.24
[INFO] [stderr]     Checking ethers-providers v2.0.11 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition name: `docsrs`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(docsrs, feature(doc_cfg))]
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(docsrs)");` to the top of a `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]   = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `docsrs`
[INFO] [stdout]  --> src/lib.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(docsrs, feature(doc_cfg))]
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(docsrs)");` to the top of a `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]   = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rpc/transports/common.rs:120:36
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(&'a ());
[INFO] [stdout]     |                ---------------     ^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(());
[INFO] [stdout]     |                                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethers-providers` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/rpc/transports/common.rs:120:36
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(&'a ());
[INFO] [stdout]     |                ---------------     ^^^^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 120 |         struct ResponseVisitor<'a>(());
[INFO] [stdout]     |                                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethers-providers` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "07db2f4efd9c200775559fe2621dd6d0f7f2f9ab87a088eb62f82a15e4ecae0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07db2f4efd9c200775559fe2621dd6d0f7f2f9ab87a088eb62f82a15e4ecae0f", kill_on_drop: false }`
[INFO] [stdout] 07db2f4efd9c200775559fe2621dd6d0f7f2f9ab87a088eb62f82a15e4ecae0f
