Nov 01 23:58:57.221 INFO checking derive_type_level_lib-0.0.21 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 23:58:57.221 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-4/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 23:58:57.395 INFO blam! aa2593b9442026dfc305cb101d86128244d2b96531161788201a7c8d5d34e571
Nov 01 23:58:57.397 INFO running `"docker" "start" "-a" "aa2593b9442026dfc305cb101d86128244d2b96531161788201a7c8d5d34e571"`
Nov 01 23:58:57.994 INFO kablam! usermod: no changes
Nov 01 23:58:58.089 INFO kablam!    Compiling core_extensions v0.1.4
Nov 01 23:58:58.090 INFO kablam!    Compiling derive_type_level_lib v0.0.21 (/source)
Nov 01 23:58:58.092 INFO kablam!     Checking syn v0.14.9
Nov 01 23:59:20.204 INFO kablam! warning: struct is never constructed: `FilteredAttrs`
Nov 01 23:59:20.204 INFO kablam!   --> src/attribute_errors/mod.rs:24:1
Nov 01 23:59:20.204 INFO kablam!    |
Nov 01 23:59:20.206 INFO kablam! 24 | pub struct FilteredAttrs<'a,F>{
Nov 01 23:59:20.206 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 23:59:20.206 INFO kablam!    |
Nov 01 23:59:20.206 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 23:59:20.206 INFO kablam! 
Nov 01 23:59:20.206 INFO kablam! warning: method is never used: `with_filter`
Nov 01 23:59:20.206 INFO kablam!   --> src/attribute_errors/mod.rs:37:5
Nov 01 23:59:20.206 INFO kablam!    |
Nov 01 23:59:20.206 INFO kablam! 37 | /     pub fn with_filter<F>(&'a self,filter:F)->FilteredAttrs<'a,F>
Nov 01 23:59:20.206 INFO kablam! 38 | |     where 
Nov 01 23:59:20.206 INFO kablam! 39 | |         F:Fn(&str)->bool
Nov 01 23:59:20.206 INFO kablam! 40 | |     {
Nov 01 23:59:20.206 INFO kablam! ...  |
Nov 01 23:59:20.206 INFO kablam! 44 | |         }
Nov 01 23:59:20.206 INFO kablam! 45 | |     }
Nov 01 23:59:20.206 INFO kablam!    | |_____^
Nov 01 23:59:20.206 INFO kablam! 
Nov 01 23:59:21.055 INFO kablam! warning: struct is never constructed: `FilteredAttrs`
Nov 01 23:59:21.055 INFO kablam!   --> src/attribute_errors/mod.rs:24:1
Nov 01 23:59:21.055 INFO kablam!    |
Nov 01 23:59:21.055 INFO kablam! 24 | pub struct FilteredAttrs<'a,F>{
Nov 01 23:59:21.055 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 23:59:21.055 INFO kablam!    |
Nov 01 23:59:21.055 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 23:59:21.055 INFO kablam! 
Nov 01 23:59:21.056 INFO kablam! warning: method is never used: `with_filter`
Nov 01 23:59:21.056 INFO kablam!   --> src/attribute_errors/mod.rs:37:5
Nov 01 23:59:21.056 INFO kablam!    |
Nov 01 23:59:21.056 INFO kablam! 37 | /     pub fn with_filter<F>(&'a self,filter:F)->FilteredAttrs<'a,F>
Nov 01 23:59:21.056 INFO kablam! 38 | |     where 
Nov 01 23:59:21.056 INFO kablam! 39 | |         F:Fn(&str)->bool
Nov 01 23:59:21.056 INFO kablam! 40 | |     {
Nov 01 23:59:21.056 INFO kablam! ...  |
Nov 01 23:59:21.056 INFO kablam! 44 | |         }
Nov 01 23:59:21.056 INFO kablam! 45 | |     }
Nov 01 23:59:21.056 INFO kablam!    | |_____^
Nov 01 23:59:21.056 INFO kablam! 
Nov 01 23:59:21.268 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 23.25s
Nov 01 23:59:21.276 INFO kablam! su: No module specific data is present
Nov 01 23:59:22.400 INFO running `"docker" "rm" "-f" "aa2593b9442026dfc305cb101d86128244d2b96531161788201a7c8d5d34e571"`
Nov 01 23:59:22.692 INFO blam! aa2593b9442026dfc305cb101d86128244d2b96531161788201a7c8d5d34e571