[INFO] fetching crate katachi_core 0.0.0...
[INFO] checking katachi_core-0.0.0 against master#9e293ae9f8abecb0be5105787d181518c9012a19 for pr-146440-1
[INFO] extracting crate katachi_core 0.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate katachi_core 0.0.0
[INFO] finished tweaking crates.io crate katachi_core 0.0.0
[INFO] tweaked toml for crates.io crate katachi_core 0.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate katachi_core 0.0.0 on toolchain 9e293ae9f8abecb0be5105787d181518c9012a19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e293ae9f8abecb0be5105787d181518c9012a19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded easy_from v0.0.0
[INFO] [stderr] error: failed to unpack package `easy_from v0.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   invalid tarball downloaded, contains an entry at "easy_from-0.0.0/null" with invalid type Char


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
           Blocking waiting for file lock on package cache
        Downloading crates ...
         Downloaded easy_from v0.0.0
       error: failed to unpack package `easy_from v0.0.0`
       
       Caused by:
         invalid tarball downloaded, contains an entry at "easy_from-0.0.0/null" with invalid type Char