[INFO] updating cached repository fin-ger/simple-raft-node [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/fin-ger/simple-raft-node [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/fin-ger/simple-raft-node" "work/ex/beta-1.38-1/sources/1.37.0/gh/fin-ger/simple-raft-node"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/fin-ger/simple-raft-node'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/fin-ger/simple-raft-node" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fin-ger/simple-raft-node"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fin-ger/simple-raft-node'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a26a3e41e6b35d199b577f82def3b807a5b811c4 [INFO] sha for GitHub repo fin-ger/simple-raft-node: a26a3e41e6b35d199b577f82def3b807a5b811c4 [INFO] validating manifest of fin-ger/simple-raft-node 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 fin-ger/simple-raft-node 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 fin-ger/simple-raft-node [INFO] finished frobbing fin-ger/simple-raft-node [INFO] frobbed toml for fin-ger/simple-raft-node written to work/ex/beta-1.38-1/sources/1.37.0/gh/fin-ger/simple-raft-node/Cargo.toml [INFO] started frobbing fin-ger/simple-raft-node [INFO] finished frobbing fin-ger/simple-raft-node [INFO] frobbed toml for fin-ger/simple-raft-node written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/fin-ger/simple-raft-node/Cargo.toml [INFO] crate fin-ger/simple-raft-node 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] [stderr] Blocking waiting for file lock on package cache [INFO] testing fin-ger/simple-raft-node 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/fin-ger/simple-raft-node:/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] 6b54356a3fd432a802a18ad3a0cb6c03a68f1ec8bb377f1aa21abbd16042ddfb [INFO] running `"docker" "start" "-a" "6b54356a3fd432a802a18ad3a0cb6c03a68f1ec8bb377f1aa21abbd16042ddfb"` [INFO] [stderr] Compiling protobuf v2.1.5 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling protoc v2.1.5 [INFO] [stderr] Compiling crossbeam-channel v0.3.8 [INFO] [stderr] Compiling get_if_addrs v0.5.3 [INFO] [stderr] Compiling backtrace v0.3.26 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling rmp v0.8.7 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling crossbeam v0.7.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling tempfile v3.0.8 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling derive-new v0.5.6 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling getset v0.0.7 [INFO] [stderr] Compiling protobuf-codegen v2.1.5 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Compiling which v2.0.1 [INFO] [stderr] Compiling prost-derive v0.5.0 [INFO] [stderr] Compiling protoc-rust v2.1.5 [INFO] [stderr] Compiling prost-build v0.5.0 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling prost v0.5.0 [INFO] [stderr] Compiling prost-types v0.5.0 [INFO] [stderr] Compiling grpcio-compiler v0.5.0-alpha [INFO] [stderr] Compiling protoc-grpcio v1.0.2 [INFO] [stderr] Compiling protobuf-build v0.6.0 [INFO] [stderr] Compiling rmp-serde v0.13.7 [INFO] [stderr] Compiling raft v0.5.0 (https://github.com/pingcap/raft-rs#939dd56b) [INFO] [stderr] Compiling simple-raft-node v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/lib.rs:13:1 [INFO] [stderr] | [INFO] [stderr] 13 | / #![feature( [INFO] [stderr] 14 | | vec_remove_item, [INFO] [stderr] 15 | | drain_filter, [INFO] [stderr] 16 | | trait_alias, [INFO] [stderr] ... | [INFO] [stderr] 19 | | await_macro, [INFO] [stderr] 20 | | )] [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 `simple-raft-node`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "6b54356a3fd432a802a18ad3a0cb6c03a68f1ec8bb377f1aa21abbd16042ddfb"` [INFO] running `"docker" "rm" "-f" "6b54356a3fd432a802a18ad3a0cb6c03a68f1ec8bb377f1aa21abbd16042ddfb"` [INFO] [stdout] 6b54356a3fd432a802a18ad3a0cb6c03a68f1ec8bb377f1aa21abbd16042ddfb