[INFO] cloning repository https://github.com/klausbegnis/rust-polkadot-preparation-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/klausbegnis/rust-polkadot-preparation-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklausbegnis%2Frust-polkadot-preparation-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklausbegnis%2Frust-polkadot-preparation-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24568437219ed10af92cddd96bd9cbaa02f51a53
[INFO] testing klausbegnis/rust-polkadot-preparation-1 against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklausbegnis%2Frust-polkadot-preparation-1" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/klausbegnis/rust-polkadot-preparation-1
[INFO] finished tweaking git repo https://github.com/klausbegnis/rust-polkadot-preparation-1
[INFO] tweaked toml for git repo https://github.com/klausbegnis/rust-polkadot-preparation-1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/klausbegnis/rust-polkadot-preparation-1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/klausbegnis/rust-polkadot-preparation-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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12ee63b49da23895bf7b8cf11627350eb29224696c5e7a7c267c32d195429ed0
[INFO] running `Command { std: "docker" "start" "-a" "12ee63b49da23895bf7b8cf11627350eb29224696c5e7a7c267c32d195429ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12ee63b49da23895bf7b8cf11627350eb29224696c5e7a7c267c32d195429ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12ee63b49da23895bf7b8cf11627350eb29224696c5e7a7c267c32d195429ed0", kill_on_drop: false }`
[INFO] [stdout] 12ee63b49da23895bf7b8cf11627350eb29224696c5e7a7c267c32d195429ed0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ce6896ec18ecaf372c3da57c088aa7bfb7de3b1280b46c8eba38f7c0ce9f3c2
[INFO] running `Command { std: "docker" "start" "-a" "2ce6896ec18ecaf372c3da57c088aa7bfb7de3b1280b46c8eba38f7c0ce9f3c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-polkadot-preparation-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `btree_map::Entry`
[INFO] [stdout]  --> src/proof_of_existence.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{btree_map::Entry, BTreeMap};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/proof_of_existence.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn get_claim(&self, claim: &T::Content) -> Option<&T::AccountId> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 22 |         self.get_claim(claim)
[INFO] [stdout]    |         --------------------- recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_nonce` is never used
[INFO] [stdout]   --> src/system.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<T: Config> Pallet<T>{
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn get_nonce(&self, user: &T::AccountId) -> T::Nonce {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "2ce6896ec18ecaf372c3da57c088aa7bfb7de3b1280b46c8eba38f7c0ce9f3c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce6896ec18ecaf372c3da57c088aa7bfb7de3b1280b46c8eba38f7c0ce9f3c2", kill_on_drop: false }`
[INFO] [stdout] 2ce6896ec18ecaf372c3da57c088aa7bfb7de3b1280b46c8eba38f7c0ce9f3c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5ccc45b5ad48e2fcabf664578f01516db06e578d8b1292cb0272061955538eb
[INFO] running `Command { std: "docker" "start" "-a" "b5ccc45b5ad48e2fcabf664578f01516db06e578d8b1292cb0272061955538eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-polkadot-preparation-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `btree_map::Entry`
[INFO] [stdout]  --> src/proof_of_existence.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{btree_map::Entry, BTreeMap};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]   --> src/proof_of_existence.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn get_claim(&self, claim: &T::Content) -> Option<&T::AccountId> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 22 |         self.get_claim(claim)
[INFO] [stdout]    |         --------------------- recursive call site
[INFO] [stdout]    |
[INFO] [stdout]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "b5ccc45b5ad48e2fcabf664578f01516db06e578d8b1292cb0272061955538eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5ccc45b5ad48e2fcabf664578f01516db06e578d8b1292cb0272061955538eb", kill_on_drop: false }`
[INFO] [stdout] b5ccc45b5ad48e2fcabf664578f01516db06e578d8b1292cb0272061955538eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b422ddf0a46413d6c2659a61deba8d5a542064e11f9519bf483464071b326f82
[INFO] running `Command { std: "docker" "start" "-a" "b422ddf0a46413d6c2659a61deba8d5a542064e11f9519bf483464071b326f82", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `btree_map::Entry`
[INFO] [stderr]  --> src/proof_of_existence.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::{btree_map::Entry, BTreeMap};
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]   --> src/proof_of_existence.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn get_claim(&self, claim: &T::Content) -> Option<&T::AccountId> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 22 |         self.get_claim(claim)
[INFO] [stderr]    |         --------------------- recursive call site
[INFO] [stderr]    |
[INFO] [stderr]    = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]    = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-polkadot-preparation-1` (bin "rust-polkadot-preparation-1" test) generated 2 warnings (run `cargo fix --bin "rust-polkadot-preparation-1" -p rust-polkadot-preparation-1 --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_polkadot_preparation_1-6fcc0889f228edf8)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test balances::tests::init_balances ... ok
[INFO] [stdout] test system::test::init_system ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'proof_of_existence::test::basic_proof_of_existence' (19) has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow, aborting
[INFO] [stderr] error: test failed, to rerun pass `--bin rust-polkadot-preparation-1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/rust_polkadot_preparation_1-6fcc0889f228edf8` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "b422ddf0a46413d6c2659a61deba8d5a542064e11f9519bf483464071b326f82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b422ddf0a46413d6c2659a61deba8d5a542064e11f9519bf483464071b326f82", kill_on_drop: false }`
[INFO] [stdout] b422ddf0a46413d6c2659a61deba8d5a542064e11f9519bf483464071b326f82
