[INFO] updating cached repository kanru/pcmanx-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kanru/pcmanx-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kanru/pcmanx-rust" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kanru/pcmanx-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kanru/pcmanx-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kanru/pcmanx-rust" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kanru/pcmanx-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kanru/pcmanx-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b89d01d48293be9ad38c59eadcf7ae749f36479c
[INFO] sha for GitHub repo kanru/pcmanx-rust: b89d01d48293be9ad38c59eadcf7ae749f36479c
[INFO] validating manifest of kanru/pcmanx-rust on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kanru/pcmanx-rust on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kanru/pcmanx-rust
[INFO] finished frobbing kanru/pcmanx-rust
[INFO] frobbed toml for kanru/pcmanx-rust written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kanru/pcmanx-rust/Cargo.toml
[INFO] started frobbing kanru/pcmanx-rust
[INFO] finished frobbing kanru/pcmanx-rust
[INFO] frobbed toml for kanru/pcmanx-rust written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/kanru/pcmanx-rust/Cargo.toml
[INFO] crate kanru/pcmanx-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kanru/pcmanx-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/rust-gnome/cairo.git`
[INFO] [stderr]     Updating git repository `https://github.com/rust-gnome/gdk.git`
[INFO] [stderr]     Updating git repository `https://github.com/rust-gnome/gtk.git`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/glib`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/sys`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/cairo`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gdk-pixbuf`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gio`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/pango`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/atk`
[INFO] [stderr]     Updating git repository `https://github.com/gtk-rs/gdk`
[INFO] [stderr] error: failed to select a version for `cairo-sys-rs`.
[INFO] [stderr]     ... required by package `gdk v0.10.0 (https://github.com/rust-gnome/gdk.git#3e2bf6db)`
[INFO] [stderr]     ... which is depended on by `pcmanx-rust v0.1.0 (/mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kanru/pcmanx-rust)`
[INFO] [stderr] versions that meet the requirements `*` are: 0.8.0
[INFO] [stderr] 
[INFO] [stderr] the package `cairo-sys-rs` links to the native library `cairo`, but it conflicts with a previous package which links to `cairo` as well:
[INFO] [stderr] package `cairo-sys-rs v0.8.0 (https://github.com/rust-gnome/cairo.git#74f0a192)`
[INFO] [stderr]     ... which is depended on by `cairo-rs v0.6.0 (https://github.com/rust-gnome/cairo.git#74f0a192)`
[INFO] [stderr]     ... which is depended on by `pcmanx-rust v0.1.0 (/mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/kanru/pcmanx-rust)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `cairo-sys-rs` which could resolve this conflict
[ERROR] this task or one of its parent failed!
[ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed