Sep 21 06:40:30.992 INFO checking nccl-0.4.3 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 06:40:30.992 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 06:40:30.992 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 06:40:31.155 INFO blam! 8c8edcee5ebce43ee5b223386d70f009f6a6eade0974df2c3850d31fe430592f
Sep 21 06:40:31.158 INFO running `"docker" "start" "-a" "8c8edcee5ebce43ee5b223386d70f009f6a6eade0974df2c3850d31fe430592f"`
Sep 21 06:40:32.267 INFO kablam! usermod: no changes
Sep 21 06:40:32.350 INFO kablam!     Checking nccl v0.4.3 (/source)
Sep 21 06:40:33.207 INFO kablam! warning: unused `#[macro_use]` import
Sep 21 06:40:33.207 INFO kablam!  --> tests/nccl.rs:2:1
Sep 21 06:40:33.207 INFO kablam!   |
Sep 21 06:40:33.207 INFO kablam! 2 | #[macro_use]
Sep 21 06:40:33.207 INFO kablam!   | ^^^^^^^^^^^^
Sep 21 06:40:33.207 INFO kablam!   |
Sep 21 06:40:33.207 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 06:40:33.207 INFO kablam! 
Sep 21 06:40:33.345 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
Sep 21 06:40:33.347 INFO kablam! su: No module specific data is present
Sep 21 06:40:33.878 INFO running `"docker" "rm" "-f" "8c8edcee5ebce43ee5b223386d70f009f6a6eade0974df2c3850d31fe430592f"`
Sep 21 06:40:33.999 INFO blam! 8c8edcee5ebce43ee5b223386d70f009f6a6eade0974df2c3850d31fe430592f