[INFO] updating cached repository janost/pingstat [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/janost/pingstat [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/janost/pingstat" "work/ex/beta-1.38-1/sources/1.37.0/gh/janost/pingstat"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/janost/pingstat'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/janost/pingstat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/janost/pingstat"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/janost/pingstat'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ec1622056f1dbac9d0ae285a37087d5045b5235d [INFO] sha for GitHub repo janost/pingstat: ec1622056f1dbac9d0ae285a37087d5045b5235d [INFO] validating manifest of janost/pingstat 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 janost/pingstat 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 janost/pingstat [INFO] finished frobbing janost/pingstat [INFO] frobbed toml for janost/pingstat written to work/ex/beta-1.38-1/sources/1.37.0/gh/janost/pingstat/Cargo.toml [INFO] started frobbing janost/pingstat [INFO] finished frobbing janost/pingstat [INFO] frobbed toml for janost/pingstat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/janost/pingstat/Cargo.toml [INFO] crate janost/pingstat 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] [stderr] Blocking waiting for file lock on package cache [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] [stderr] Blocking waiting for file lock on package cache [INFO] testing janost/pingstat against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/janost/pingstat:/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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 7fd8cc7d96ff4e7b36065f0336599445450bc7b5eca0be9cf7491863cae5f6c1 [INFO] running `"docker" "start" "-a" "7fd8cc7d96ff4e7b36065f0336599445450bc7b5eca0be9cf7491863cae5f6c1"` [INFO] [stderr] Compiling state v0.2.2 [INFO] [stderr] Compiling unicode-bidi v0.3.3 [INFO] [stderr] Compiling rocket v0.2.8 [INFO] [stderr] Compiling memchr v1.0.1 [INFO] [stderr] Compiling rocket_codegen v0.2.8 [INFO] [stderr] Compiling oping v0.3.1 [INFO] [stderr] Compiling term-painter v0.2.3 [INFO] [stderr] Compiling serde_json v0.9.10 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.2/src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(const_fn)] [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 `state`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "7fd8cc7d96ff4e7b36065f0336599445450bc7b5eca0be9cf7491863cae5f6c1"` [INFO] running `"docker" "rm" "-f" "7fd8cc7d96ff4e7b36065f0336599445450bc7b5eca0be9cf7491863cae5f6c1"` [INFO] [stdout] 7fd8cc7d96ff4e7b36065f0336599445450bc7b5eca0be9cf7491863cae5f6c1