[INFO] fetching crate soroban-test 21.5.0...
[INFO] checking soroban-test-21.5.0 against nightly-2024-10-24 for legacyreceiver_rename
[INFO] extracting crate soroban-test 21.5.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate soroban-test 21.5.0 on toolchain nightly-2024-10-24
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-24" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate soroban-test 21.5.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate soroban-test 21.5.0
[INFO] tweaked toml for crates.io crate soroban-test 21.5.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-24" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `syn`.
[INFO] [stderr]     ... required by package `futures-macro v0.3.31`
[INFO] [stderr]     ... which satisfies dependency `futures-macro = "=0.3.31"` of package `futures-util v0.3.31`
[INFO] [stderr]     ... which satisfies dependency `futures-util = "^0.3.30"` of package `soroban-cli v21.5.0`
[INFO] [stderr]     ... which satisfies dependency `soroban-cli = "=21.5.0"` of package `soroban-test v21.5.0 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^2.0.52` are: 2.0.87, 2.0.86, 2.0.85, 2.0.84, 2.0.83, 2.0.82, 2.0.81, 2.0.80, 2.0.79, 2.0.78, 2.0.77, 2.0.76, 2.0.75, 2.0.74, 2.0.73, 2.0.72, 2.0.71, 2.0.70, 2.0.69, 2.0.68, 2.0.67, 2.0.66, 2.0.65, 2.0.64, 2.0.63, 2.0.62, 2.0.61, 2.0.60, 2.0.59, 2.0.58, 2.0.57, 2.0.56, 2.0.55, 2.0.54, 2.0.53, 2.0.52
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `syn v2.0.39`
[INFO] [stderr]     ... which satisfies dependency `syn = "=2.0.39"` of package `soroban-builtin-sdk-macros v21.2.0`
[INFO] [stderr]     ... which satisfies dependency `soroban-builtin-sdk-macros = "=21.2.0"` of package `soroban-env-host v21.2.0`
[INFO] [stderr]     ... which satisfies dependency `soroban-env-host = "=21.2.0"` of package `soroban-test v21.5.0 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `syn` which could resolve this conflict


ExecutionFailed(ExitStatus(unix_wait_status(25856)))