Oct 12 16:51:56.698 INFO checking mwylde/rumble against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 16:51:56.698 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/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 16:51:56.899 INFO blam! 86be6d066f363506c04761626628e50f82707bb15b2fbd97751284d6932b62d2
Oct 12 16:51:56.901 INFO running `"docker" "start" "-a" "86be6d066f363506c04761626628e50f82707bb15b2fbd97751284d6932b62d2"`
Oct 12 16:51:57.395 INFO kablam! usermod: no changes
Oct 12 16:51:57.505 INFO kablam!    Compiling backtrace-sys v0.1.22
Oct 12 16:51:57.505 INFO kablam!     Checking memchr v1.0.2
Oct 12 16:51:57.512 INFO kablam!     Checking nix v0.9.0
Oct 12 16:51:57.512 INFO kablam!     Checking enum_primitive v0.1.1
Oct 12 16:51:58.216 INFO kablam!     Checking nom v3.2.1
Oct 12 16:52:01.840 INFO kablam!     Checking backtrace v0.3.8
Oct 12 16:52:02.425 INFO kablam!     Checking failure v0.1.1
Oct 12 16:52:03.868 INFO kablam!     Checking rumble v0.2.1 (/source)
Oct 12 16:52:07.869 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.44s
Oct 12 16:52:07.869 INFO kablam! su: No module specific data is present
Oct 12 16:52:08.569 INFO running `"docker" "rm" "-f" "86be6d066f363506c04761626628e50f82707bb15b2fbd97751284d6932b62d2"`
Oct 12 16:52:08.937 INFO blam! 86be6d066f363506c04761626628e50f82707bb15b2fbd97751284d6932b62d2