[INFO] fetching crate rust-mnsm2i-ga 0.1.0...
[INFO] checking rust-mnsm2i-ga-0.1.0 against master#e1613686e0efc80a1a18b1263625450a8de3fb04 for pr-154492
[INFO] extracting crate rust-mnsm2i-ga 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rust-mnsm2i-ga 0.1.0
[INFO] finished tweaking crates.io crate rust-mnsm2i-ga 0.1.0
[INFO] tweaked toml for crates.io crate rust-mnsm2i-ga 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-mnsm2i-ga 0.1.0 on toolchain e1613686e0efc80a1a18b1263625450a8de3fb04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-mnsm2i-ga 0.1.0 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" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: checksum for `io v0.0.2` changed between lock files
[INFO] [stderr] 
[INFO] [stderr] this could be indicative of a few possible errors:
[INFO] [stderr] 
[INFO] [stderr]     * the lock file is corrupt
[INFO] [stderr]     * a replacement source in use (e.g., a mirror) returned a different checksum
[INFO] [stderr]     * the source itself may be corrupt in one way or another
[INFO] [stderr] 
[INFO] [stderr] unable to verify that `io v0.0.2` is the same as when the lockfile was generated
[INFO] [stderr] 


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
       warning: only one of `license` or `license-file` is necessary
       `license` should be used if the package license can be expressed with a standard SPDX expression.
       `license-file` should be used if the package uses a non-standard license.
       See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
           Updating crates.io index
       error: checksum for `io v0.0.2` changed between lock files
       
       this could be indicative of a few possible errors:
       
           * the lock file is corrupt
           * a replacement source in use (e.g., a mirror) returned a different checksum
           * the source itself may be corrupt in one way or another
       
       unable to verify that `io v0.0.2` is the same as when the lockfile was generated
       