Dec 03 14:37:59.926 INFO testing dalek-rangeproofs-0.1.0 against 1.30.1 for beta-1.31-5
Dec 03 14:37:59.927 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 03 14:38:00.424 INFO [stdout] 573829e5eb142a26e42043f198b3c0d2bedc88ee3fa3745eef113920d46c5f32
Dec 03 14:38:00.426 INFO running `"docker" "start" "-a" "573829e5eb142a26e42043f198b3c0d2bedc88ee3fa3745eef113920d46c5f32"`
Dec 03 14:38:01.871 INFO [stderr] usermod: no changes
Dec 03 14:38:02.083 INFO [stderr]    Compiling generic-array v0.6.0
Dec 03 14:38:02.475 INFO [stderr]    Compiling digest-buffer v0.2.0
Dec 03 14:38:02.475 INFO [stderr]    Compiling digest v0.4.0
Dec 03 14:38:02.781 INFO [stderr]    Compiling curve25519-dalek v0.8.1
Dec 03 14:38:03.284 INFO [stderr]    Compiling sha2 v0.4.2
Dec 03 14:38:04.408 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 14:38:04.408 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/curve25519-dalek-0.8.1/src/lib.rs:14:34
Dec 03 14:38:04.408 INFO [stderr]    |
Dec 03 14:38:04.408 INFO [stderr] 14 | #![cfg_attr(feature = "nightly", feature(i128_type))]
Dec 03 14:38:04.408 INFO [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^
Dec 03 14:38:04.423 INFO [stderr] 
Dec 03 14:38:04.465 INFO [stderr] error: aborting due to previous error
Dec 03 14:38:04.480 INFO [stderr] 
Dec 03 14:38:04.482 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 14:38:04.493 INFO [stderr] error: Could not compile `curve25519-dalek`.
Dec 03 14:38:04.493 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 14:38:04.526 INFO [stderr] error: build failed
Dec 03 14:38:04.527 INFO [stderr] su: No module specific data is present
Dec 03 14:38:05.319 INFO running `"docker" "inspect" "573829e5eb142a26e42043f198b3c0d2bedc88ee3fa3745eef113920d46c5f32"`
Dec 03 14:38:05.639 INFO running `"docker" "rm" "-f" "573829e5eb142a26e42043f198b3c0d2bedc88ee3fa3745eef113920d46c5f32"`
Dec 03 14:38:05.863 INFO [stdout] 573829e5eb142a26e42043f198b3c0d2bedc88ee3fa3745eef113920d46c5f32