Sep 02 06:07:58.809 INFO checking num-bigint-0.2.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 06:07:58.809 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 06:07:58.810 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 06:07:58.961 INFO blam! faebab07b7c71c5aec5e629dca6441c93dc46e69b9105f665089a856ec4e4aaf
Sep 02 06:07:58.964 INFO running `"docker" "start" "-a" "faebab07b7c71c5aec5e629dca6441c93dc46e69b9105f665089a856ec4e4aaf"`
Sep 02 06:07:59.607 INFO kablam!    Compiling num-bigint v0.2.0 (file:///source)
Sep 02 06:08:06.870 INFO kablam! error[E0464]: multiple matching crates for `rand`
Sep 02 06:08:06.870 INFO kablam!  --> benches/gcd.rs:7:1
Sep 02 06:08:06.870 INFO kablam!   |
Sep 02 06:08:06.870 INFO kablam! 7 | extern crate rand;
Sep 02 06:08:06.870 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Sep 02 06:08:06.870 INFO kablam!   |
Sep 02 06:08:06.870 INFO kablam!   = note: candidates:
Sep 02 06:08:06.870 INFO kablam!           crate `rand`: /rustup-home/toolchains/1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-6c0c815848f04865.rlib
Sep 02 06:08:06.870 INFO kablam!           crate `rand`: /rustup-home/toolchains/1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-3a6eaeed1390ab28.rlib
Sep 02 06:08:06.870 INFO kablam! 
Sep 02 06:08:06.871 INFO kablam! error[E0463]: can't find crate for `rand`
Sep 02 06:08:06.871 INFO kablam!  --> benches/gcd.rs:7:1
Sep 02 06:08:06.871 INFO kablam!   |
Sep 02 06:08:06.871 INFO kablam! 7 | extern crate rand;
Sep 02 06:08:06.871 INFO kablam!   | ^^^^^^^^^^^^^^^^^^ can't find crate
Sep 02 06:08:06.871 INFO kablam! 
Sep 02 06:08:06.871 INFO kablam! error: aborting due to 2 previous errors
Sep 02 06:08:06.871 INFO kablam! 
Sep 02 06:08:06.871 INFO kablam! Some errors occurred: E0463, E0464.
Sep 02 06:08:06.871 INFO kablam! For more information about an error, try `rustc --explain E0463`.
Sep 02 06:08:06.891 INFO kablam! error: Could not compile `num-bigint`.
Sep 02 06:08:06.891 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 06:08:11.543 INFO kablam! warning: unused arithmetic operation which must be used
Sep 02 06:08:11.543 INFO kablam!    --> tests/biguint.rs:769:5
Sep 02 06:08:11.543 INFO kablam!     |
Sep 02 06:08:11.543 INFO kablam! 769 |     a - b;
Sep 02 06:08:11.543 INFO kablam!     |     ^^^^^
Sep 02 06:08:11.543 INFO kablam!     |
Sep 02 06:08:11.543 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 06:08:11.543 INFO kablam! 
Sep 02 06:08:11.665 INFO kablam! error: build failed
Sep 02 06:08:11.667 INFO kablam! su: No module specific data is present
Sep 02 06:08:12.107 INFO running `"docker" "rm" "-f" "faebab07b7c71c5aec5e629dca6441c93dc46e69b9105f665089a856ec4e4aaf"`
Sep 02 06:08:12.197 INFO blam! faebab07b7c71c5aec5e629dca6441c93dc46e69b9105f665089a856ec4e4aaf