Sep 14 12:47:08.735 INFO checking nccl-0.4.3 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 12:47:08.735 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 12:47:08.735 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-6/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 12:47:09.062 INFO blam! 10469a0ee6a45fd80e902fe633525e82d5582ae57588e1bc05b683f99db0b046
Sep 14 12:47:09.062 INFO running `"docker" "start" "-a" "10469a0ee6a45fd80e902fe633525e82d5582ae57588e1bc05b683f99db0b046"`
Sep 14 12:47:10.202 INFO kablam! usermod: no changes
Sep 14 12:47:10.246 INFO kablam!     Checking nccl v0.4.3 (file:///source)
Sep 14 12:47:11.151 INFO kablam! warning: unused `#[macro_use]` import
Sep 14 12:47:11.151 INFO kablam!  --> tests/nccl.rs:2:1
Sep 14 12:47:11.151 INFO kablam!   |
Sep 14 12:47:11.151 INFO kablam! 2 | #[macro_use]
Sep 14 12:47:11.151 INFO kablam!   | ^^^^^^^^^^^^
Sep 14 12:47:11.151 INFO kablam!   |
Sep 14 12:47:11.151 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 12:47:11.151 INFO kablam! 
Sep 14 12:47:11.299 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Sep 14 12:47:11.303 INFO kablam! su: No module specific data is present
Sep 14 12:47:11.913 INFO running `"docker" "rm" "-f" "10469a0ee6a45fd80e902fe633525e82d5582ae57588e1bc05b683f99db0b046"`
Sep 14 12:47:12.135 INFO blam! 10469a0ee6a45fd80e902fe633525e82d5582ae57588e1bc05b683f99db0b046