Sep 02 06:07:57.656 INFO checking num-bigint-0.2.0 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 06:07:57.656 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 06:07:57.656 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/try#952c7dbfa2628309f557b367929ffc17af20b332:/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 +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 06:07:57.846 INFO blam! 238514dc018ddf00ea1b8ba957e1f9dff5fd673cfc1bd936e9bd042c1504eaaa
Sep 02 06:07:57.848 INFO running `"docker" "start" "-a" "238514dc018ddf00ea1b8ba957e1f9dff5fd673cfc1bd936e9bd042c1504eaaa"`
Sep 02 06:07:58.570 INFO kablam!    Compiling num-bigint v0.2.0 (file:///source)
Sep 02 06:08:06.299 INFO kablam! error[E0464]: multiple matching crates for `rand`
Sep 02 06:08:06.299 INFO kablam!  --> benches/gcd.rs:7:1
Sep 02 06:08:06.299 INFO kablam!   |
Sep 02 06:08:06.299 INFO kablam! 7 | extern crate rand;
Sep 02 06:08:06.299 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Sep 02 06:08:06.299 INFO kablam!   |
Sep 02 06:08:06.299 INFO kablam!   = note: candidates:
Sep 02 06:08:06.299 INFO kablam!           crate `rand`: /rustup-home/toolchains/952c7dbfa2628309f557b367929ffc17af20b332-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-5e68d86efd4e9fc6.rlib
Sep 02 06:08:06.299 INFO kablam!           crate `rand`: /rustup-home/toolchains/952c7dbfa2628309f557b367929ffc17af20b332-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-4ae3764d7104de79.rlib
Sep 02 06:08:06.299 INFO kablam! 
Sep 02 06:08:06.300 INFO kablam! error[E0463]: can't find crate for `rand`
Sep 02 06:08:06.300 INFO kablam!  --> benches/gcd.rs:7:1
Sep 02 06:08:06.300 INFO kablam!   |
Sep 02 06:08:06.300 INFO kablam! 7 | extern crate rand;
Sep 02 06:08:06.300 INFO kablam!   | ^^^^^^^^^^^^^^^^^^ can't find crate
Sep 02 06:08:06.300 INFO kablam! 
Sep 02 06:08:06.300 INFO kablam! error: aborting due to 2 previous errors
Sep 02 06:08:06.300 INFO kablam! 
Sep 02 06:08:06.300 INFO kablam! Some errors occurred: E0463, E0464.
Sep 02 06:08:06.300 INFO kablam! For more information about an error, try `rustc --explain E0463`.
Sep 02 06:08:06.323 INFO kablam! error: Could not compile `num-bigint`.
Sep 02 06:08:06.324 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 02 06:08:11.969 INFO kablam! warning: unused arithmetic operation which must be used
Sep 02 06:08:11.970 INFO kablam!    --> tests/biguint.rs:769:5
Sep 02 06:08:11.970 INFO kablam!     |
Sep 02 06:08:11.970 INFO kablam! 769 |     a - b;
Sep 02 06:08:11.970 INFO kablam!     |     ^^^^^
Sep 02 06:08:11.970 INFO kablam!     |
Sep 02 06:08:11.970 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 02 06:08:11.970 INFO kablam! 
Sep 02 06:08:12.145 INFO kablam! error: build failed
Sep 02 06:08:12.147 INFO kablam! su: No module specific data is present
Sep 02 06:08:12.478 INFO running `"docker" "rm" "-f" "238514dc018ddf00ea1b8ba957e1f9dff5fd673cfc1bd936e9bd042c1504eaaa"`
Sep 02 06:08:12.582 INFO blam! 238514dc018ddf00ea1b8ba957e1f9dff5fd673cfc1bd936e9bd042c1504eaaa