Nov 10 08:53:43.208 INFO checking backoff-0.1.2 against try#dc13be39fae8d4c607889b27de374b52586485a3 for pr-55632
Nov 10 08:53:43.208 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-3/try#dc13be39fae8d4c607889b27de374b52586485a3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55632/try#dc13be39fae8d4c607889b27de374b52586485a3:/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 +dc13be39fae8d4c607889b27de374b52586485a3-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"`
Nov 10 08:53:43.743 INFO blam! cedc4d571310e5e5c6edbef3697eb03e113552098694fb7caf363f163846c9e7
Nov 10 08:53:43.746 INFO running `"docker" "start" "-a" "cedc4d571310e5e5c6edbef3697eb03e113552098694fb7caf363f163846c9e7"`
Nov 10 08:53:44.981 INFO kablam! usermod: no changes
Nov 10 08:53:45.243 INFO kablam!     Checking backoff v0.1.2 (/source)
Nov 10 08:53:46.845 INFO kablam! warning: unknown lint: `needless_pass_by_value`
Nov 10 08:53:46.846 INFO kablam!   --> examples/permanent_error.rs:10:9
Nov 10 08:53:46.846 INFO kablam!    |
Nov 10 08:53:46.846 INFO kablam! 10 | #[allow(needless_pass_by_value)]
Nov 10 08:53:46.846 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^
Nov 10 08:53:46.847 INFO kablam!    |
Nov 10 08:53:46.847 INFO kablam!    = note: #[warn(unknown_lints)] on by default
Nov 10 08:53:46.847 INFO kablam! 
Nov 10 08:53:54.887 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.86s
Nov 10 08:53:54.903 INFO kablam! su: No module specific data is present
Nov 10 08:53:55.753 INFO running `"docker" "rm" "-f" "cedc4d571310e5e5c6edbef3697eb03e113552098694fb7caf363f163846c9e7"`
Nov 10 08:53:55.990 INFO blam! cedc4d571310e5e5c6edbef3697eb03e113552098694fb7caf363f163846c9e7