[INFO] fetching crate region_quadtree 0.1.0...
[INFO] testing region_quadtree-0.1.0 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate region_quadtree 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate region_quadtree 0.1.0
[INFO] finished tweaking crates.io crate region_quadtree 0.1.0
[INFO] tweaked toml for crates.io crate region_quadtree 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate region_quadtree 0.1.0 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate region_quadtree 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "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] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/bi/nc/bincode, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `log = "^0.4"` (locked to 0.4.20)
[INFO] [stderr] candidate versions found which didn't match: 0.4.8, 0.4.7, 0.4.6, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `gfx v0.18.3`
[INFO] [stderr]     ... which satisfies dependency `gfx = "^0.18.1"` (locked to 0.18.3) of package `piston_window v0.131.0`
[INFO] [stderr]     ... which satisfies dependency `piston_window = "^0.131.0"` (locked to 0.131.0) of package `region_quadtree v0.1.0 (/workspace/builds/worker-0-tc1/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     log = { version = "0.4.0-rc.1" }


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/bi/nc/bincode, error: No space left on device (os error 28)
error: failed to select a version for the requirement `log = "^0.4"` (locked to 0.4.20)
candidate versions found which didn't match: 0.4.8, 0.4.7, 0.4.6, ...
location searched: crates.io index
required by package `gfx v0.18.3`
    ... which satisfies dependency `gfx = "^0.18.1"` (locked to 0.18.3) of package `piston_window v0.131.0`
    ... which satisfies dependency `piston_window = "^0.131.0"` (locked to 0.131.0) of package `region_quadtree v0.1.0 (/workspace/builds/worker-0-tc1/source)`
if you are looking for the prerelease package it needs to be specified explicitly
    log = { version = "0.4.0-rc.1" }