Oct 27 18:53:13.348 INFO checking nccl-0.4.3 against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 18:53:13.348 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-6/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +19f01b935b91481fd445b16b533d2f87661bf12e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 27 18:53:13.699 INFO blam! 49b890df2998533f5daee53d7ecc73ed1c8e9f658778983b1ffb157bf6ffc9e3
Oct 27 18:53:13.704 INFO running `"docker" "start" "-a" "49b890df2998533f5daee53d7ecc73ed1c8e9f658778983b1ffb157bf6ffc9e3"`
Oct 27 18:53:14.300 INFO kablam! usermod: no changes
Oct 27 18:53:14.355 INFO kablam!     Checking nccl v0.4.3 (/source)
Oct 27 18:53:16.551 INFO kablam! warning: unused `#[macro_use]` import
Oct 27 18:53:16.551 INFO kablam!  --> tests/nccl.rs:2:1
Oct 27 18:53:16.552 INFO kablam!   |
Oct 27 18:53:16.552 INFO kablam! 2 | #[macro_use]
Oct 27 18:53:16.552 INFO kablam!   | ^^^^^^^^^^^^
Oct 27 18:53:16.552 INFO kablam!   |
Oct 27 18:53:16.552 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 27 18:53:16.552 INFO kablam! 
Oct 27 18:53:16.747 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
Oct 27 18:53:16.747 INFO kablam! su: No module specific data is present
Oct 27 18:53:17.799 INFO running `"docker" "rm" "-f" "49b890df2998533f5daee53d7ecc73ed1c8e9f658778983b1ffb157bf6ffc9e3"`
Oct 27 18:53:18.147 INFO blam! 49b890df2998533f5daee53d7ecc73ed1c8e9f658778983b1ffb157bf6ffc9e3