Sep 04 12:28:46.487 INFO checking num-bigint-0.2.0 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 12:28:46.487 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 12:28:46.487 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-1/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 12:28:46.670 INFO blam! a153941d3686097284b366d3b868b3b1cb15dc0240a471248c804b1d1e0fd386
Sep 04 12:28:46.671 INFO running `"docker" "start" "-a" "a153941d3686097284b366d3b868b3b1cb15dc0240a471248c804b1d1e0fd386"`
Sep 04 12:28:47.475 INFO kablam!    Compiling num-bigint v0.2.0 (file:///source)
Sep 04 12:28:53.798 INFO kablam! error[E0464]: multiple matching crates for `rand`
Sep 04 12:28:53.798 INFO kablam!  --> benches/bigint.rs:6:1
Sep 04 12:28:53.798 INFO kablam!   |
Sep 04 12:28:53.798 INFO kablam! 6 | extern crate rand;
Sep 04 12:28:53.798 INFO kablam!   | ^^^^^^^^^^^^^^^^^^
Sep 04 12:28:53.799 INFO kablam!   |
Sep 04 12:28:53.799 INFO kablam!   = note: candidates:
Sep 04 12:28:53.799 INFO kablam!           crate `rand`: /rustup-home/toolchains/5fe695a3844714c70e8f7731a553f7947987a68a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-615b8eaefccfd193.rlib
Sep 04 12:28:53.799 INFO kablam!           crate `rand`: /rustup-home/toolchains/5fe695a3844714c70e8f7731a553f7947987a68a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-11af1bbb3e8d1560.rlib
Sep 04 12:28:53.800 INFO kablam! 
Sep 04 12:28:53.801 INFO kablam! error[E0463]: can't find crate for `rand`
Sep 04 12:28:53.801 INFO kablam!  --> benches/bigint.rs:6:1
Sep 04 12:28:53.801 INFO kablam!   |
Sep 04 12:28:53.801 INFO kablam! 6 | extern crate rand;
Sep 04 12:28:53.801 INFO kablam!   | ^^^^^^^^^^^^^^^^^^ can't find crate
Sep 04 12:28:53.801 INFO kablam! 
Sep 04 12:28:53.802 INFO kablam! error: aborting due to 2 previous errors
Sep 04 12:28:53.808 INFO kablam! 
Sep 04 12:28:53.809 INFO kablam! Some errors occurred: E0463, E0464.
Sep 04 12:28:53.809 INFO kablam! For more information about an error, try `rustc --explain E0463`.
Sep 04 12:28:53.820 INFO kablam! error: Could not compile `num-bigint`.
Sep 04 12:28:53.821 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 04 12:28:58.553 INFO kablam! warning: unused arithmetic operation which must be used
Sep 04 12:28:58.553 INFO kablam!    --> tests/biguint.rs:769:5
Sep 04 12:28:58.553 INFO kablam!     |
Sep 04 12:28:58.553 INFO kablam! 769 |     a - b;
Sep 04 12:28:58.553 INFO kablam!     |     ^^^^^
Sep 04 12:28:58.553 INFO kablam!     |
Sep 04 12:28:58.553 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 04 12:28:58.553 INFO kablam! 
Sep 04 12:28:58.753 INFO kablam! error: build failed
Sep 04 12:28:58.757 INFO kablam! su: No module specific data is present
Sep 04 12:28:59.349 INFO running `"docker" "rm" "-f" "a153941d3686097284b366d3b868b3b1cb15dc0240a471248c804b1d1e0fd386"`
Sep 04 12:28:59.437 INFO blam! a153941d3686097284b366d3b868b3b1cb15dc0240a471248c804b1d1e0fd386