Sep 14 12:47:04.238 INFO checking nccl-0.4.3 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 12:47:04.238 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 12:47:04.238 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-6/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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=1000" "-e" "CMD=cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 12:47:04.623 INFO blam! fc5d97eb5b3be586239f028bc96a188ecb0076d7a2f871c5710108884d8259e4
Sep 14 12:47:04.625 INFO running `"docker" "start" "-a" "fc5d97eb5b3be586239f028bc96a188ecb0076d7a2f871c5710108884d8259e4"`
Sep 14 12:47:05.999 INFO kablam! usermod: no changes
Sep 14 12:47:06.058 INFO kablam!     Checking nccl v0.4.3 (file:///source)
Sep 14 12:47:06.938 INFO kablam! warning: unused `#[macro_use]` import
Sep 14 12:47:06.939 INFO kablam!  --> tests/nccl.rs:2:1
Sep 14 12:47:06.939 INFO kablam!   |
Sep 14 12:47:06.939 INFO kablam! 2 | #[macro_use]
Sep 14 12:47:06.939 INFO kablam!   | ^^^^^^^^^^^^
Sep 14 12:47:06.939 INFO kablam!   |
Sep 14 12:47:06.939 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 12:47:06.939 INFO kablam! 
Sep 14 12:47:07.251 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Sep 14 12:47:07.251 INFO kablam! su: No module specific data is present
Sep 14 12:47:08.434 INFO running `"docker" "rm" "-f" "fc5d97eb5b3be586239f028bc96a188ecb0076d7a2f871c5710108884d8259e4"`
Sep 14 12:47:08.692 INFO blam! fc5d97eb5b3be586239f028bc96a188ecb0076d7a2f871c5710108884d8259e4