[INFO] cloning repository https://github.com/LeoHeredia2004/Blokchain_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LeoHeredia2004/Blokchain_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoHeredia2004%2FBlokchain_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoHeredia2004%2FBlokchain_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e6d9a381d3f9bdd0e3d624379f4a237a1cc752d
[INFO] checking LeoHeredia2004/Blokchain_Rust against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeoHeredia2004%2FBlokchain_Rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LeoHeredia2004/Blokchain_Rust
[INFO] finished tweaking git repo https://github.com/LeoHeredia2004/Blokchain_Rust
[INFO] tweaked toml for git repo https://github.com/LeoHeredia2004/Blokchain_Rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LeoHeredia2004/Blokchain_Rust on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LeoHeredia2004/Blokchain_Rust 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `k256`.
[INFO] [stderr]     ... required by package `blockchain v0.1.0 (/workspace/builds/worker-0-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^0.13` are: 0.13.4, 0.13.3, 0.13.2, 0.13.1, 0.13.0
[INFO] [stderr] 
[INFO] [stderr] package `blockchain` depends on `k256` with feature `rand-std` but `k256` does not have that feature.
[INFO] [stderr]  available features: alloc, arithmetic, bits, critical-section, default, digest, ecdh, ecdsa, ecdsa-core, expose-field, hash2curve, hex-literal, jwk, once_cell, pem, pkcs8, precomputed-tables, schnorr, serde, serdect, sha2, sha256, signature, std, test-vectors
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `k256` which could resolve this conflict


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
           Updating crates.io index
       error: failed to select a version for `k256`.
           ... required by package `blockchain v0.1.0 (/workspace/builds/worker-0-tc1/source)`
       versions that meet the requirements `^0.13` are: 0.13.4, 0.13.3, 0.13.2, 0.13.1, 0.13.0
       
       package `blockchain` depends on `k256` with feature `rand-std` but `k256` does not have that feature.
        available features: alloc, arithmetic, bits, critical-section, default, digest, ecdh, ecdsa, ecdsa-core, expose-field, hash2curve, hex-literal, jwk, once_cell, pem, pkcs8, precomputed-tables, schnorr, serde, serdect, sha2, sha256, signature, std, test-vectors
       
       
       failed to select a version for `k256` which could resolve this conflict