[INFO] fetching crate pathbuster 0.5.5...
[INFO] checking pathbuster-0.5.5 against master#e08b80c0fb7667bdcd040761891701e576c42ec8 for pr-129021
[INFO] extracting crate pathbuster 0.5.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate pathbuster 0.5.5 on toolchain e08b80c0fb7667bdcd040761891701e576c42ec8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e08b80c0fb7667bdcd040761891701e576c42ec8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pathbuster 0.5.5
[INFO] finished tweaking crates.io crate pathbuster 0.5.5
[INFO] tweaked toml for crates.io crate pathbuster 0.5.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate pathbuster 0.5.5 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" "+e08b80c0fb7667bdcd040761891701e576c42ec8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `differ` found
[INFO] [stderr] location searched: registry `crates-io`
[INFO] [stderr] required by package `pathbuster v0.5.5 (/workspace/builds/worker-0-tc1/source)`
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking pathbuster-0.5.5 against try#f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5 for pr-129021
[INFO] extracting crate pathbuster 0.5.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate pathbuster 0.5.5 on toolchain f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pathbuster 0.5.5
[INFO] finished tweaking crates.io crate pathbuster 0.5.5
[INFO] tweaked toml for crates.io crate pathbuster 0.5.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate pathbuster 0.5.5 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" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `differ` found
[INFO] [stderr] location searched: registry `crates-io`
[INFO] [stderr] required by package `pathbuster v0.5.5 (/workspace/builds/worker-0-tc2/source)`
[INFO] checking pathbuster-0.5.5 against try#f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5 for pr-129021
[INFO] extracting crate pathbuster 0.5.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate pathbuster 0.5.5 on toolchain f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pathbuster 0.5.5
[INFO] finished tweaking crates.io crate pathbuster 0.5.5
[INFO] tweaked toml for crates.io crate pathbuster 0.5.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate pathbuster 0.5.5 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" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `differ` found
[INFO] [stderr] location searched: registry `crates-io`
[INFO] [stderr] required by package `pathbuster v0.5.5 (/workspace/builds/worker-0-tc2/source)`
[INFO] checking pathbuster-0.5.5 against try#f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5 for pr-129021
[INFO] extracting crate pathbuster 0.5.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate pathbuster 0.5.5 on toolchain f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pathbuster 0.5.5
[INFO] finished tweaking crates.io crate pathbuster 0.5.5
[INFO] tweaked toml for crates.io crate pathbuster 0.5.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate pathbuster 0.5.5 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" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `differ` found
[INFO] [stderr] location searched: registry `crates-io`
[INFO] [stderr] required by package `pathbuster v0.5.5 (/workspace/builds/worker-0-tc2/source)`
[INFO] checking pathbuster-0.5.5 against try#f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5 for pr-129021
[INFO] extracting crate pathbuster 0.5.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate pathbuster 0.5.5 on toolchain f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pathbuster 0.5.5
[INFO] finished tweaking crates.io crate pathbuster 0.5.5
[INFO] tweaked toml for crates.io crate pathbuster 0.5.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate pathbuster 0.5.5 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" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: no matching package named `differ` found
[INFO] [stderr] location searched: registry `crates-io`
[INFO] [stderr] required by package `pathbuster v0.5.5 (/workspace/builds/worker-0-tc2/source)`
[INFO] checking pathbuster-0.5.5 against try#f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5 for pr-129021
[INFO] extracting crate pathbuster 0.5.5 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate pathbuster 0.5.5 on toolchain f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pathbuster 0.5.5
[INFO] finished tweaking crates.io crate pathbuster 0.5.5
[INFO] tweaked toml for crates.io crate pathbuster 0.5.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate pathbuster 0.5.5 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" "+f781a78d815e6a304bf6061b8a8fa69d7ce8dfd5" "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: no matching package named `differ` found
[INFO] [stderr] location searched: registry `crates-io`
[INFO] [stderr] required by package `pathbuster v0.5.5 (/workspace/builds/worker-0-tc2/source)`
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.