[INFO] fetching crate luckycoincore-rpc 0.16.0...
[INFO] checking luckycoincore-rpc-0.16.0 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate luckycoincore-rpc 0.16.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate luckycoincore-rpc 0.16.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate luckycoincore-rpc 0.16.0
[INFO] tweaked toml for crates.io crate luckycoincore-rpc 0.16.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate luckycoincore-rpc 0.16.0 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate luckycoincore-rpc 0.16.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd057bc58c0292538522d24e7e72ea8abc58da0863ec3b7f451e2be78a263a89
[INFO] running `Command { std: "docker" "start" "-a" "bd057bc58c0292538522d24e7e72ea8abc58da0863ec3b7f451e2be78a263a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd057bc58c0292538522d24e7e72ea8abc58da0863ec3b7f451e2be78a263a89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd057bc58c0292538522d24e7e72ea8abc58da0863ec3b7f451e2be78a263a89", kill_on_drop: false }`
[INFO] [stdout] bd057bc58c0292538522d24e7e72ea8abc58da0863ec3b7f451e2be78a263a89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da6863aa12610e83ad09498342d772e04c99b5d256176d042f04995eb6311dea
[INFO] running `Command { std: "docker" "start" "-a" "da6863aa12610e83ad09498342d772e04c99b5d256176d042f04995eb6311dea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling secp256k1-sys v0.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking bitcoin_hashes v0.11.0
[INFO] [stderr]     Checking jsonrpc v0.13.0
[INFO] [stderr]     Checking secp256k1 v0.24.3
[INFO] [stderr]     Checking luckycoin v0.29.2
[INFO] [stderr]     Checking luckycoincore-rpc-json v0.16.0
[INFO] [stderr]     Checking luckycoincore-rpc v0.16.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `RetryClient` is never constructed
[INFO] [stdout]   --> examples/retry_client.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct RetryClient {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `luckycoincore-rpc` (example "retry_client") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "da6863aa12610e83ad09498342d772e04c99b5d256176d042f04995eb6311dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da6863aa12610e83ad09498342d772e04c99b5d256176d042f04995eb6311dea", kill_on_drop: false }`
[INFO] [stdout] da6863aa12610e83ad09498342d772e04c99b5d256176d042f04995eb6311dea
