Sep 21 13:07:28.028 INFO checking backoff-0.1.2 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 13:07:28.028 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 13:07:28.028 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-1/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 13:07:28.299 INFO blam! 0339bf1574d1ef26a0f51f04c1e8f2e30de59353f3134f17ceead807cb1c6264
Sep 21 13:07:28.301 INFO running `"docker" "start" "-a" "0339bf1574d1ef26a0f51f04c1e8f2e30de59353f3134f17ceead807cb1c6264"`
Sep 21 13:07:29.446 INFO kablam! usermod: no changes
Sep 21 13:07:29.655 INFO kablam!     Checking backoff v0.1.2 (/source)
Sep 21 13:07:30.578 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Sep 21 13:07:30.578 INFO kablam!   --> examples/permanent_error.rs:10:9
Sep 21 13:07:30.578 INFO kablam!    |
Sep 21 13:07:30.578 INFO kablam! 10 | #[allow(needless_pass_by_value)]
Sep 21 13:07:30.578 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^
Sep 21 13:07:30.578 INFO kablam!    |
Sep 21 13:07:30.578 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Sep 21 13:07:30.578 INFO kablam! 
Sep 21 13:07:33.147 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.66s
Sep 21 13:07:33.152 INFO kablam! su: No module specific data is present
Sep 21 13:07:33.941 INFO running `"docker" "rm" "-f" "0339bf1574d1ef26a0f51f04c1e8f2e30de59353f3134f17ceead807cb1c6264"`
Sep 21 13:07:34.090 INFO blam! 0339bf1574d1ef26a0f51f04c1e8f2e30de59353f3134f17ceead807cb1c6264