Oct 12 10:44:03.342 INFO checking williamyaoh/flip against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 10:44:03.342 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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 12 10:44:03.864 INFO blam! e78bcabc9a7d83af8eb495f497333bc960bc9cc6a5d08b020aac879dcd2ea246
Oct 12 10:44:03.864 INFO running `"docker" "start" "-a" "e78bcabc9a7d83af8eb495f497333bc960bc9cc6a5d08b020aac879dcd2ea246"`
Oct 12 10:44:05.136 INFO kablam! usermod: no changes
Oct 12 10:44:05.272 INFO kablam!     Checking lazy_static v0.2.8
Oct 12 10:44:05.272 INFO kablam!     Checking arg_input v1.0.0
Oct 12 10:44:05.272 INFO kablam!     Checking unicode-segmentation v1.1.0
Oct 12 10:44:05.272 INFO kablam!     Checking aho-corasick v0.6.3
Oct 12 10:44:06.736 INFO kablam!     Checking regex v0.2.1
Oct 12 10:44:09.217 INFO kablam!     Checking docopt v0.7.0
Oct 12 10:44:10.644 INFO kablam!     Checking flip v1.0.2 (/source)
Oct 12 10:44:11.249 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.09s
Oct 12 10:44:11.259 INFO kablam! su: No module specific data is present
Oct 12 10:44:12.373 INFO running `"docker" "rm" "-f" "e78bcabc9a7d83af8eb495f497333bc960bc9cc6a5d08b020aac879dcd2ea246"`
Oct 12 10:44:12.593 INFO blam! e78bcabc9a7d83af8eb495f497333bc960bc9cc6a5d08b020aac879dcd2ea246