Aug 02 03:21:07.866 INFO checking num-bigint-0.2.0 against 1.27.2 for lazy_static-1
Aug 02 03:21:07.866 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:21:07.866 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 03:21:07.866 INFO running `"docker" "create" "-v" "/tmp/crater.X4urZ6rODtKX:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 03:21:08.108 INFO blam! 3b72d5a4e4adc884890cf6fba8aaeeaf410f9366d81ea2c1c7e815950567de46
Aug 02 03:21:08.110 INFO running `"docker" "start" "-a" "3b72d5a4e4adc884890cf6fba8aaeeaf410f9366d81ea2c1c7e815950567de46"`
Aug 02 03:21:09.225 INFO kablam!    Compiling num-bigint v0.2.0 (file:///source)
Aug 02 03:21:17.981 INFO kablam! error[E0432]: unresolved import `num_bigint::RandBigInt`
Aug 02 03:21:17.981 INFO kablam!   --> benches/gcd.rs:10:27
Aug 02 03:21:17.981 INFO kablam!    |
Aug 02 03:21:17.981 INFO kablam! 10 | use num_bigint::{BigUint, RandBigInt};
Aug 02 03:21:17.981 INFO kablam!    |                           ^^^^^^^^^^ no `RandBigInt` in the root
Aug 02 03:21:17.982 INFO kablam! 
Aug 02 03:21:17.987 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:21:17.987 INFO kablam!  --> benches/gcd.rs:1:1
Aug 02 03:21:17.987 INFO kablam!   |
Aug 02 03:21:17.987 INFO kablam! 1 | #![feature(test)]
Aug 02 03:21:17.987 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 03:21:17.988 INFO kablam! 
Aug 02 03:21:17.988 INFO kablam! error: aborting due to 2 previous errors
Aug 02 03:21:17.989 INFO kablam! 
Aug 02 03:21:17.989 INFO kablam! Some errors occurred: E0432, E0554.
Aug 02 03:21:17.990 INFO kablam! For more information about an error, try `rustc --explain E0432`.
Aug 02 03:21:18.008 INFO kablam! error: Could not compile `num-bigint`.
Aug 02 03:21:18.008 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 03:21:18.400 INFO kablam! error[E0432]: unresolved import `num_bigint::RandBigInt`
Aug 02 03:21:18.400 INFO kablam!   --> benches/bigint.rs:10:35
Aug 02 03:21:18.400 INFO kablam!    |
Aug 02 03:21:18.400 INFO kablam! 10 | use num_bigint::{BigInt, BigUint, RandBigInt};
Aug 02 03:21:18.400 INFO kablam!    |                                   ^^^^^^^^^^ no `RandBigInt` in the root
Aug 02 03:21:18.400 INFO kablam! 
Aug 02 03:21:18.407 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 03:21:18.407 INFO kablam!  --> benches/bigint.rs:1:1
Aug 02 03:21:18.407 INFO kablam!   |
Aug 02 03:21:18.407 INFO kablam! 1 | #![feature(test)]
Aug 02 03:21:18.407 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 03:21:18.407 INFO kablam! 
Aug 02 03:21:18.408 INFO kablam! error: aborting due to 2 previous errors
Aug 02 03:21:18.408 INFO kablam! 
Aug 02 03:21:18.408 INFO kablam! Some errors occurred: E0432, E0554.
Aug 02 03:21:18.408 INFO kablam! For more information about an error, try `rustc --explain E0432`.
Aug 02 03:21:18.415 INFO kablam! error: Could not compile `num-bigint`.
Aug 02 03:21:18.416 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 03:21:23.129 INFO kablam! warning: unused arithmetic operation which must be used
Aug 02 03:21:23.129 INFO kablam!    --> tests/biguint.rs:769:5
Aug 02 03:21:23.130 INFO kablam!     |
Aug 02 03:21:23.130 INFO kablam! 769 |     a - b;
Aug 02 03:21:23.130 INFO kablam!     |     ^^^^^
Aug 02 03:21:23.130 INFO kablam!     |
Aug 02 03:21:23.130 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 02 03:21:23.130 INFO kablam! 
Aug 02 03:21:23.301 INFO kablam! error: build failed
Aug 02 03:21:23.305 INFO kablam! su: No module specific data is present
Aug 02 03:21:24.050 INFO running `"docker" "rm" "-f" "3b72d5a4e4adc884890cf6fba8aaeeaf410f9366d81ea2c1c7e815950567de46"`
Aug 02 03:21:24.247 INFO blam! 3b72d5a4e4adc884890cf6fba8aaeeaf410f9366d81ea2c1c7e815950567de46