[INFO] fetching crate twistercore-rpc 0.3.1...
[INFO] checking twistercore-rpc-0.3.1 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate twistercore-rpc 0.3.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate twistercore-rpc 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate twistercore-rpc 0.3.1
[INFO] tweaked toml for crates.io crate twistercore-rpc 0.3.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twistercore-rpc 0.3.1 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 twistercore-rpc 0.3.1 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7482645ba49f145508b1bf140442fe9767958d6972e2c64589dc3e8872c56922
[INFO] running `Command { std: "docker" "start" "-a" "7482645ba49f145508b1bf140442fe9767958d6972e2c64589dc3e8872c56922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7482645ba49f145508b1bf140442fe9767958d6972e2c64589dc3e8872c56922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7482645ba49f145508b1bf140442fe9767958d6972e2c64589dc3e8872c56922", kill_on_drop: false }`
[INFO] [stdout] 7482645ba49f145508b1bf140442fe9767958d6972e2c64589dc3e8872c56922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e8a0f251deeeb051f129ba6604fdad20dbb4958bfc90c6d16bbff3ee9faf0d88
[INFO] running `Command { std: "docker" "start" "-a" "e8a0f251deeeb051f129ba6604fdad20dbb4958bfc90c6d16bbff3ee9faf0d88", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling bitcoin-io v0.1.3
[INFO] [stderr]    Compiling bitcoin-internals v0.3.0
[INFO] [stderr]    Compiling cc v1.2.17
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling hex_lit v0.1.1
[INFO] [stderr]    Compiling bitcoin v0.32.5
[INFO] [stderr]    Compiling minreq v2.13.3
[INFO] [stderr]     Checking hex-conservative v0.2.1
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]     Checking bech32 v0.11.0
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]     Checking linux-raw-sys v0.9.3
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling secp256k1-sys v0.10.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tempfile v3.19.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking bitcoin_hashes v0.14.0
[INFO] [stderr]     Checking bitcoin-units v0.1.2
[INFO] [stderr]     Checking jsonrpc v0.18.0
[INFO] [stderr]     Checking base58ck v0.1.0
[INFO] [stderr]     Checking secp256k1 v0.29.1
[INFO] [stderr]     Checking twistercore-rpc-json v0.1.1
[INFO] [stderr]     Checking twistercore-rpc v0.3.1 (/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 `twistercore-rpc` (example "retry_client") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e8a0f251deeeb051f129ba6604fdad20dbb4958bfc90c6d16bbff3ee9faf0d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8a0f251deeeb051f129ba6604fdad20dbb4958bfc90c6d16bbff3ee9faf0d88", kill_on_drop: false }`
[INFO] [stdout] e8a0f251deeeb051f129ba6604fdad20dbb4958bfc90c6d16bbff3ee9faf0d88
