Jul 11 22:12:38.923 INFO checking serde_python-0.1.1 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 11 22:12:38.923 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 22:12:38.924 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 11 22:12:38.924 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-1/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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=500" "-e" "CMD=cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 11 22:12:39.169 INFO blam! 6a983f8e0e6cb38f562ff402cf48ff51fc54079fb4c816c373dbd2e0ca68a285
Jul 11 22:12:39.172 INFO running `"docker" "start" "-a" "6a983f8e0e6cb38f562ff402cf48ff51fc54079fb4c816c373dbd2e0ca68a285"`
Jul 11 22:12:40.245 INFO kablam!     Blocking waiting for file lock on the registry index
Jul 11 22:12:40.460 INFO kablam!    Compiling cpython v0.2.0
Jul 11 22:12:40.467 INFO kablam!     Checking heck v0.3.0
Jul 11 22:12:40.479 INFO kablam!    Compiling syn v0.13.11
Jul 11 22:12:40.479 INFO kablam!    Compiling python3-sys v0.2.0
Jul 11 22:13:03.984 INFO kablam!    Compiling serde_python_derive v0.1.1
Jul 11 22:13:06.997 INFO kablam!     Checking serde_python v0.1.1 (file:///source)
Jul 11 22:13:07.780 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 27.57s
Jul 11 22:13:07.802 INFO kablam! su: No module specific data is present
Jul 11 22:13:08.234 INFO running `"docker" "rm" "-f" "6a983f8e0e6cb38f562ff402cf48ff51fc54079fb4c816c373dbd2e0ca68a285"`
Jul 11 22:13:08.410 INFO blam! 6a983f8e0e6cb38f562ff402cf48ff51fc54079fb4c816c373dbd2e0ca68a285