Sep 14 11:35:44.615 INFO checking ppbert-0.6.1 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 11:35:44.615 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 11:35:44.615 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-5/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 11:35:44.878 INFO blam! 2ec384253a87fc0b862b9d44f020c1b4bce47ec1cedac764e039c0a75afe4b0d
Sep 14 11:35:44.879 INFO running `"docker" "start" "-a" "2ec384253a87fc0b862b9d44f020c1b4bce47ec1cedac764e039c0a75afe4b0d"`
Sep 14 11:35:46.421 INFO kablam! usermod: no changes
Sep 14 11:35:46.586 INFO kablam!     Checking ppbert v0.6.1 (file:///source)
Sep 14 11:35:49.102 INFO kablam! warning: unused import: `num::bigint`
Sep 14 11:35:49.102 INFO kablam!  --> tests/parser_integration.rs:4:5
Sep 14 11:35:49.102 INFO kablam!   |
Sep 14 11:35:49.102 INFO kablam! 4 | use num::bigint;
Sep 14 11:35:49.102 INFO kablam!   |     ^^^^^^^^^^^
Sep 14 11:35:49.103 INFO kablam!   |
Sep 14 11:35:49.103 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 11:35:49.103 INFO kablam! 
Sep 14 11:35:49.467 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.02s
Sep 14 11:35:49.471 INFO kablam! su: No module specific data is present
Sep 14 11:35:50.049 INFO running `"docker" "rm" "-f" "2ec384253a87fc0b862b9d44f020c1b4bce47ec1cedac764e039c0a75afe4b0d"`
Sep 14 11:35:50.115 INFO blam! 2ec384253a87fc0b862b9d44f020c1b4bce47ec1cedac764e039c0a75afe4b0d