[INFO] updating cached repository dnined/d9d_c3c3 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/dnined/d9d_c3c3 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/dnined/d9d_c3c3" "work/ex/beta-1.37-6/sources/1.36.0/gh/dnined/d9d_c3c3"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dnined/d9d_c3c3'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/dnined/d9d_c3c3" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dnined/d9d_c3c3"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dnined/d9d_c3c3'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 169be0b09593cfbdc90540ed800a87222618ae48 [INFO] sha for GitHub repo dnined/d9d_c3c3: 169be0b09593cfbdc90540ed800a87222618ae48 [INFO] validating manifest of dnined/d9d_c3c3 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of dnined/d9d_c3c3 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing dnined/d9d_c3c3 [INFO] finished frobbing dnined/d9d_c3c3 [INFO] frobbed toml for dnined/d9d_c3c3 written to work/ex/beta-1.37-6/sources/1.36.0/gh/dnined/d9d_c3c3/Cargo.toml [INFO] started frobbing dnined/d9d_c3c3 [INFO] finished frobbing dnined/d9d_c3c3 [INFO] frobbed toml for dnined/d9d_c3c3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dnined/d9d_c3c3/Cargo.toml [INFO] crate dnined/d9d_c3c3 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing dnined/d9d_c3c3 against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dnined/d9d_c3c3:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 18a4ebd737001d632adf7476a7000feb11e9d69310508546669834123f9bef31 [INFO] running `"docker" "start" "-a" "18a4ebd737001d632adf7476a7000feb11e9d69310508546669834123f9bef31"` [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling scoped-tls v1.0.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling mio v0.6.18 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling headers-derive v0.1.0 [INFO] [stderr] Compiling sha-1 v0.8.1 [INFO] [stderr] Compiling env_logger v0.6.1 [INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling tokio-io v0.1.12 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling http v0.1.17 [INFO] [stderr] Compiling input_buffer v0.2.0 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling tungstenite v0.6.1 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling tokio-threadpool v0.1.14 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.16 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.6 [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/futures-util-preview-0.3.0-alpha.16/src/lib.rs:4:38 [INFO] [stderr] | [INFO] [stderr] 4 | #![cfg_attr(feature = "async-await", feature(async_await))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling tokio-reactor v0.1.9 [INFO] [stderr] Compiling tokio-fs v0.1.6 [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 `futures-util-preview`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "18a4ebd737001d632adf7476a7000feb11e9d69310508546669834123f9bef31"` [INFO] running `"docker" "rm" "-f" "18a4ebd737001d632adf7476a7000feb11e9d69310508546669834123f9bef31"` [INFO] [stdout] 18a4ebd737001d632adf7476a7000feb11e9d69310508546669834123f9bef31