Nov 03 05:03:05.330 INFO checking nccl-0.4.3 against try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7 for pr-55517
Nov 03 05:03:05.330 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-1/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55517/try#dc8b02d6f1e93f212fc39844ea688b634b4a03c7:/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 +dc8b02d6f1e93f212fc39844ea688b634b4a03c7-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"`
Nov 03 05:03:05.738 INFO blam! 8d16a5ad2e2d473419ef4b8ea1a0a210101020905b8534d551eea048f37e475b
Nov 03 05:03:05.739 INFO running `"docker" "start" "-a" "8d16a5ad2e2d473419ef4b8ea1a0a210101020905b8534d551eea048f37e475b"`
Nov 03 05:03:07.688 INFO kablam! usermod: no changes
Nov 03 05:03:07.772 INFO kablam!     Checking nccl v0.4.3 (/source)
Nov 03 05:03:09.982 INFO kablam! warning: unused `#[macro_use]` import
Nov 03 05:03:09.982 INFO kablam!  --> tests/nccl.rs:2:1
Nov 03 05:03:09.982 INFO kablam!   |
Nov 03 05:03:09.982 INFO kablam! 2 | #[macro_use]
Nov 03 05:03:09.982 INFO kablam!   | ^^^^^^^^^^^^
Nov 03 05:03:09.982 INFO kablam!   |
Nov 03 05:03:09.983 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 03 05:03:09.983 INFO kablam! 
Nov 03 05:03:10.169 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.45s
Nov 03 05:03:10.177 INFO kablam! su: No module specific data is present
Nov 03 05:03:10.864 INFO running `"docker" "rm" "-f" "8d16a5ad2e2d473419ef4b8ea1a0a210101020905b8534d551eea048f37e475b"`
Nov 03 05:03:11.156 INFO blam! 8d16a5ad2e2d473419ef4b8ea1a0a210101020905b8534d551eea048f37e475b