[INFO] cloning repository gabo01/rust-backup
[INFO] running `"git" "clone" "--bare" "git://github.com/gabo01/rust-backup.git" "work/cache/sources/gh/gabo01/rust-backup"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/gabo01/rust-backup'...
[INFO] running `"git" "clone" "work/cache/sources/gh/gabo01/rust-backup" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gabo01/rust-backup"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gabo01/rust-backup'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gabo01/rust-backup" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gabo01/rust-backup"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gabo01/rust-backup'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 912132f51cf311f7599a9567cc75f09baf68ce38
[INFO] sha for GitHub repo gabo01/rust-backup: 912132f51cf311f7599a9567cc75f09baf68ce38
[INFO] validating manifest of gabo01/rust-backup on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gabo01/rust-backup on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gabo01/rust-backup
[INFO] removed workspace from gabo01/rust-backup
[INFO] removed path dependency debug_closure from gabo01/rust-backup
[INFO] removed path dependency env_path from gabo01/rust-backup
[INFO] removed path dependency fn_box from gabo01/rust-backup
[INFO] finished frobbing gabo01/rust-backup
[INFO] frobbed toml for gabo01/rust-backup written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gabo01/rust-backup/Cargo.toml
[INFO] started frobbing gabo01/rust-backup
[INFO] removed workspace from gabo01/rust-backup
[INFO] removed path dependency debug_closure from gabo01/rust-backup
[INFO] removed path dependency env_path from gabo01/rust-backup
[INFO] removed path dependency fn_box from gabo01/rust-backup
[INFO] finished frobbing gabo01/rust-backup
[INFO] frobbed toml for gabo01/rust-backup written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/gabo01/rust-backup/Cargo.toml
[INFO] crate gabo01/rust-backup already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `debug_closure` found
[INFO] [stderr] location searched: registry `https://github.com/rust-lang/crates.io-index`
[INFO] [stderr] required by package `artid-core v0.1.0 (/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/gabo01/rust-backup)`
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed