Dec 03 14:37:53.291 INFO testing dalek-rangeproofs-0.1.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 14:37:53.291 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 14:37:53.799 INFO [stdout] c0b9a85b61af121900b7b3b0480710ae6e2554d67499c5516841f97c8f576fd9
Dec 03 14:37:53.807 INFO running `"docker" "start" "-a" "c0b9a85b61af121900b7b3b0480710ae6e2554d67499c5516841f97c8f576fd9"`
Dec 03 14:37:54.983 INFO [stderr] usermod: no changes
Dec 03 14:37:55.167 INFO [stderr]    Compiling generic-array v0.6.0
Dec 03 14:37:55.595 INFO [stderr]    Compiling digest-buffer v0.2.0
Dec 03 14:37:55.595 INFO [stderr]    Compiling digest v0.4.0
Dec 03 14:37:56.107 INFO [stderr]    Compiling curve25519-dalek v0.8.1
Dec 03 14:37:56.287 INFO [stderr]    Compiling sha2 v0.4.2
Dec 03 14:37:57.929 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 14:37:57.929 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/curve25519-dalek-0.8.1/src/lib.rs:14:34
Dec 03 14:37:57.929 INFO [stderr]    |
Dec 03 14:37:57.929 INFO [stderr] 14 | #![cfg_attr(feature = "nightly", feature(i128_type))]
Dec 03 14:37:57.929 INFO [stderr]    |                                  ^^^^^^^^^^^^^^^^^^
Dec 03 14:37:57.929 INFO [stderr] 
Dec 03 14:37:57.937 INFO [stderr] error: aborting due to previous error
Dec 03 14:37:57.937 INFO [stderr] 
Dec 03 14:37:57.937 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 14:37:57.950 INFO [stderr] error: Could not compile `curve25519-dalek`.
Dec 03 14:37:57.950 INFO [stderr] 
Dec 03 14:37:57.950 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 14:37:57.952 INFO [stderr] su: No module specific data is present
Dec 03 14:37:59.169 INFO running `"docker" "inspect" "c0b9a85b61af121900b7b3b0480710ae6e2554d67499c5516841f97c8f576fd9"`
Dec 03 14:37:59.523 INFO running `"docker" "rm" "-f" "c0b9a85b61af121900b7b3b0480710ae6e2554d67499c5516841f97c8f576fd9"`
Dec 03 14:37:59.851 INFO [stdout] c0b9a85b61af121900b7b3b0480710ae6e2554d67499c5516841f97c8f576fd9