[INFO] cloning repository https://github.com/c-n-o-t-e/ERC721_RUST
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c-n-o-t-e/ERC721_RUST" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-n-o-t-e%2FERC721_RUST", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-n-o-t-e%2FERC721_RUST'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2464cf7d4e3b064c2eb728ee7ba329ff2e33e989
[INFO] checking c-n-o-t-e/ERC721_RUST against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-n-o-t-e%2FERC721_RUST" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/c-n-o-t-e/ERC721_RUST
[INFO] finished tweaking git repo https://github.com/c-n-o-t-e/ERC721_RUST
[INFO] tweaked toml for git repo https://github.com/c-n-o-t-e/ERC721_RUST written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/c-n-o-t-e/ERC721_RUST on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/c-n-o-t-e/ERC721_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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `ink = "^3.0"`
[INFO] [stderr] candidate versions found which didn't match: 6.0.0-alpha, 5.1.1, 5.1.0, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `ERC721_RUST v0.1.0 (/workspace/builds/worker-4-tc1/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     ink = { version = "6.0.0-alpha" }


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
error: failed to select a version for the requirement `ink = "^3.0"`
candidate versions found which didn't match: 6.0.0-alpha, 5.1.1, 5.1.0, ...
location searched: crates.io index
required by package `ERC721_RUST v0.1.0 (/workspace/builds/worker-4-tc1/source)`
if you are looking for the prerelease package it needs to be specified explicitly
    ink = { version = "6.0.0-alpha" }