[INFO] fetching crate brc20-bitcoincore-rpc 0.17.0...
[INFO] checking brc20-bitcoincore-rpc-0.17.0 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate brc20-bitcoincore-rpc 0.17.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate brc20-bitcoincore-rpc 0.17.0
[INFO] finished tweaking crates.io crate brc20-bitcoincore-rpc 0.17.0
[INFO] tweaked toml for crates.io crate brc20-bitcoincore-rpc 0.17.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate brc20-bitcoincore-rpc 0.17.0 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate brc20-bitcoincore-rpc 0.17.0 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ef8a8baff52edc7f0cf2214df47d206d5ebf93c598ccbab6ca71091841336bb
[INFO] running `Command { std: "docker" "start" "-a" "6ef8a8baff52edc7f0cf2214df47d206d5ebf93c598ccbab6ca71091841336bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ef8a8baff52edc7f0cf2214df47d206d5ebf93c598ccbab6ca71091841336bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ef8a8baff52edc7f0cf2214df47d206d5ebf93c598ccbab6ca71091841336bb", kill_on_drop: false }`
[INFO] [stdout] 6ef8a8baff52edc7f0cf2214df47d206d5ebf93c598ccbab6ca71091841336bb
[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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3fc59be5a210c39a22fb3f4c7bbd7ecbd612e2cc42156174a6f552831b20044
[INFO] running `Command { std: "docker" "start" "-a" "d3fc59be5a210c39a22fb3f4c7bbd7ecbd612e2cc42156174a6f552831b20044", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling bitcoin-private v0.1.0
[INFO] [stderr]    Compiling cc v1.0.88
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling minreq v2.11.0
[INFO] [stderr]    Compiling bitcoin v0.30.2
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling secp256k1-sys v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking bitcoin_hashes v0.12.0
[INFO] [stderr]     Checking secp256k1 v0.27.0
[INFO] [stderr]     Checking jsonrpc v0.16.0
[INFO] [stderr]     Checking brc20-bitcoincore-rpc-json v0.17.0
[INFO] [stderr]     Checking brc20-bitcoincore-rpc v0.17.0 (/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_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brc20-bitcoincore-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" "d3fc59be5a210c39a22fb3f4c7bbd7ecbd612e2cc42156174a6f552831b20044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3fc59be5a210c39a22fb3f4c7bbd7ecbd612e2cc42156174a6f552831b20044", kill_on_drop: false }`
[INFO] [stdout] d3fc59be5a210c39a22fb3f4c7bbd7ecbd612e2cc42156174a6f552831b20044
