[INFO] updating cached repository lespea/nlc [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/lespea/nlc [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/lespea/nlc" "work/ex/beta-1.38-1/sources/1.37.0/gh/lespea/nlc"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lespea/nlc'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/lespea/nlc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lespea/nlc"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lespea/nlc'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] fef6aef4c1c8deb50d34d17dc116c85997e083fd [INFO] sha for GitHub repo lespea/nlc: fef6aef4c1c8deb50d34d17dc116c85997e083fd [INFO] validating manifest of lespea/nlc on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of lespea/nlc on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing lespea/nlc [INFO] finished frobbing lespea/nlc [INFO] frobbed toml for lespea/nlc written to work/ex/beta-1.38-1/sources/1.37.0/gh/lespea/nlc/Cargo.toml [INFO] started frobbing lespea/nlc [INFO] finished frobbing lespea/nlc [INFO] frobbed toml for lespea/nlc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lespea/nlc/Cargo.toml [INFO] crate lespea/nlc already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing lespea/nlc against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lespea/nlc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 817cbf61fbaf38d490e27d49a4a4a997128b8175a7ef035bd07371a4763afa8f [INFO] running `"docker" "start" "-a" "817cbf61fbaf38d490e27d49a4a4a997128b8175a7ef035bd07371a4763afa8f"` [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling packed_simd v0.3.3 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling num-format v0.4.0 [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1 [INFO] [stderr] | [INFO] [stderr] 202 | / #![feature( [INFO] [stderr] 203 | | repr_simd, [INFO] [stderr] 204 | | const_fn, [INFO] [stderr] 205 | | platform_intrinsics, [INFO] [stderr] ... | [INFO] [stderr] 215 | | custom_inner_attributes [INFO] [stderr] 216 | | )] [INFO] [stderr] | |__^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `packed_simd`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "817cbf61fbaf38d490e27d49a4a4a997128b8175a7ef035bd07371a4763afa8f"` [INFO] running `"docker" "rm" "-f" "817cbf61fbaf38d490e27d49a4a4a997128b8175a7ef035bd07371a4763afa8f"` [INFO] [stdout] 817cbf61fbaf38d490e27d49a4a4a997128b8175a7ef035bd07371a4763afa8f