[INFO] cloning repository https://github.com/rust-chainblock/blockchain8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-chainblock/blockchain8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-chainblock%2Fblockchain8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-chainblock%2Fblockchain8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6220be51fecf2d0ebebcd3b2ad2531847d0f9d6
[INFO] checking rust-chainblock/blockchain8 against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-chainblock%2Fblockchain8" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rust-chainblock/blockchain8
[INFO] finished tweaking git repo https://github.com/rust-chainblock/blockchain8
[INFO] tweaked toml for git repo https://github.com/rust-chainblock/blockchain8 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rust-chainblock/blockchain8 on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rust-chainblock/blockchain8 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.122
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d5cd1302836ab61a11d1e5343650c0bd5b9ae327167019ed4ea60f4e39a1f0c
[INFO] running `Command { std: "docker" "start" "-a" "5d5cd1302836ab61a11d1e5343650c0bd5b9ae327167019ed4ea60f4e39a1f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d5cd1302836ab61a11d1e5343650c0bd5b9ae327167019ed4ea60f4e39a1f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5cd1302836ab61a11d1e5343650c0bd5b9ae327167019ed4ea60f4e39a1f0c", kill_on_drop: false }`
[INFO] [stdout] 5d5cd1302836ab61a11d1e5343650c0bd5b9ae327167019ed4ea60f4e39a1f0c
[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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b04bf66ab12c839342f19a34c7d04bd3894208495a7c46b2301ca609a6d24c7
[INFO] running `Command { std: "docker" "start" "-a" "9b04bf66ab12c839342f19a34c7d04bd3894208495a7c46b2301ca609a6d24c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `transaction_data` is never read
[INFO] [stdout]   --> src/block/../transaction.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Transaction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     pub transaction_data: TransactionData,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transaction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `transaction_data` is never read
[INFO] [stdout]   --> src/transaction.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Transaction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     pub transaction_data: TransactionData,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transaction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `transaction_data` is never read
[INFO] [stdout]   --> src/block/../transaction.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Transaction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     pub transaction_data: TransactionData,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transaction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `transaction_data` is never read
[INFO] [stdout]   --> src/transaction.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Transaction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     pub transaction_data: TransactionData,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Transaction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "9b04bf66ab12c839342f19a34c7d04bd3894208495a7c46b2301ca609a6d24c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b04bf66ab12c839342f19a34c7d04bd3894208495a7c46b2301ca609a6d24c7", kill_on_drop: false }`
[INFO] [stdout] 9b04bf66ab12c839342f19a34c7d04bd3894208495a7c46b2301ca609a6d24c7