Sep 14 19:08:37.691 INFO checking blc-0.6.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 19:08:37.691 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 19:08:37.691 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-2/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 19:08:38.148 INFO blam! 998036cd317eb10115284568611f306c6a96dbcfcbdc5308fe7f7c4d37c08960
Sep 14 19:08:38.149 INFO running `"docker" "start" "-a" "998036cd317eb10115284568611f306c6a96dbcfcbdc5308fe7f7c4d37c08960"`
Sep 14 19:08:39.711 INFO kablam! usermod: no changes
Sep 14 19:08:39.757 INFO kablam!     Checking lambda_calculus v2.2.0
Sep 14 19:08:40.951 INFO kablam!     Checking blc v0.6.0 (file:///source)
Sep 14 19:08:41.368 INFO kablam! warning: unused `#[macro_use]` import
Sep 14 19:08:41.368 INFO kablam!   --> src/lib.rs:42:1
Sep 14 19:08:41.368 INFO kablam!    |
Sep 14 19:08:41.368 INFO kablam! 42 | #[macro_use]
Sep 14 19:08:41.368 INFO kablam!    | ^^^^^^^^^^^^
Sep 14 19:08:41.368 INFO kablam!    |
Sep 14 19:08:41.368 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 14 19:08:41.368 INFO kablam! 
Sep 14 19:08:43.019 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
Sep 14 19:08:43.019 INFO kablam! su: No module specific data is present
Sep 14 19:08:43.987 INFO running `"docker" "rm" "-f" "998036cd317eb10115284568611f306c6a96dbcfcbdc5308fe7f7c4d37c08960"`
Sep 14 19:08:44.302 INFO blam! 998036cd317eb10115284568611f306c6a96dbcfcbdc5308fe7f7c4d37c08960