[INFO] crate muxrpc 0.3.0 is already in cache [INFO] extracting crate muxrpc 0.3.0 into work/ex/clippy-test-run/sources/stable/reg/muxrpc/0.3.0 [INFO] extracting crate muxrpc 0.3.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/muxrpc/0.3.0 [INFO] validating manifest of muxrpc-0.3.0 on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of muxrpc-0.3.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing muxrpc-0.3.0 [INFO] finished frobbing muxrpc-0.3.0 [INFO] frobbed toml for muxrpc-0.3.0 written to work/ex/clippy-test-run/sources/stable/reg/muxrpc/0.3.0/Cargo.toml [INFO] started frobbing muxrpc-0.3.0 [INFO] finished frobbing muxrpc-0.3.0 [INFO] frobbed toml for muxrpc-0.3.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/muxrpc/0.3.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] error: failed to select a version for the requirement `futures = "^0.2.0-alpha"` [INFO] [stderr] candidate versions found which didn't match: 0.1.25, 0.1.24, 0.1.23, ... [INFO] [stderr] location searched: crates.io index [INFO] [stderr] required by package `muxrpc v0.3.0 (/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/muxrpc/0.3.0)` [ERROR] this task or one of its parent failed! [ERROR] command `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` failed