Oct 12 18:36:01.775 INFO checking kyren/luster against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 18:36:01.776 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 18:36:02.184 INFO blam! bf42a8cd6c6fc6ebb6421c8369db1063244ad28a45f7e658a5d92e91ba0aa469
Oct 12 18:36:02.192 INFO running `"docker" "start" "-a" "bf42a8cd6c6fc6ebb6421c8369db1063244ad28a45f7e658a5d92e91ba0aa469"`
Oct 12 18:36:03.711 INFO kablam! usermod: no changes
Oct 12 18:36:03.876 INFO kablam!     Checking proc-macro2 v0.3.8
Oct 12 18:36:03.876 INFO kablam!    Compiling syn v0.13.11
Oct 12 18:36:07.057 INFO kablam!     Checking quote v0.5.2
Oct 12 18:36:24.741 INFO kablam!    Compiling synstructure v0.8.1
Oct 12 18:36:28.992 INFO kablam!     Checking gc-arena-derive v0.1.0 (/source/gc-arena/gc-arena-derive)
Oct 12 18:36:35.828 INFO kablam!     Checking gc-arena v0.1.0 (/source/gc-arena)
Oct 12 18:36:37.128 INFO kablam!     Checking luster v0.1.0 (/source)
Oct 12 18:36:44.036 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 40.30s
Oct 12 18:36:44.064 INFO kablam! su: No module specific data is present
Oct 12 18:36:44.785 INFO running `"docker" "rm" "-f" "bf42a8cd6c6fc6ebb6421c8369db1063244ad28a45f7e658a5d92e91ba0aa469"`
Oct 12 18:36:45.140 INFO blam! bf42a8cd6c6fc6ebb6421c8369db1063244ad28a45f7e658a5d92e91ba0aa469