[INFO] cloning repository https://github.com/ed-iv/Bit-Country-Blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ed-iv/Bit-Country-Blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fed-iv%2FBit-Country-Blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fed-iv%2FBit-Country-Blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0fbe06721e4e922f34349edeb80047e24a479d09
[INFO] checking ed-iv/Bit-Country-Blockchain against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fed-iv%2FBit-Country-Blockchain" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ed-iv/Bit-Country-Blockchain on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ed-iv/Bit-Country-Blockchain
[INFO] finished tweaking git repo https://github.com/ed-iv/Bit-Country-Blockchain
[INFO] tweaked toml for git repo https://github.com/ed-iv/Bit-Country-Blockchain written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/substrate`
[INFO] [stderr] error: failed to select a version for `snow`.
[INFO] [stderr]     ... required by package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-authority-discovery v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-authority-discovery = "^0.9.0"` of package `bitcountry-node v0.0.1 (/workspace/builds/worker-4-tc1/source/node)`
[INFO] [stderr] versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `snow v0.7.1`
[INFO] [stderr]     ... which satisfies dependency `snow = "^0.7.1"` of package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-authority-discovery v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-authority-discovery = "^0.9.0"` of package `bitcountry-node v0.0.1 (/workspace/builds/worker-4-tc1/source/node)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `snow` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.