Oct 13 16:09:50.269 INFO checking derive_type_level_lib-0.0.21 against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 16:09:50.269 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 13 16:09:50.450 INFO blam! 05ce0711d55280828b813d77c713f9f687c26ceccc1c1faec8e0ab5127005e30
Oct 13 16:09:50.460 INFO running `"docker" "start" "-a" "05ce0711d55280828b813d77c713f9f687c26ceccc1c1faec8e0ab5127005e30"`
Oct 13 16:09:51.480 INFO kablam! usermod: no changes
Oct 13 16:09:51.572 INFO kablam!    Compiling core_extensions v0.1.4
Oct 13 16:09:51.572 INFO kablam!    Compiling derive_type_level_lib v0.0.21 (/source)
Oct 13 16:09:51.572 INFO kablam!     Checking syn v0.14.9
Oct 13 16:10:14.434 INFO kablam! warning: struct is never constructed: `FilteredAttrs`
Oct 13 16:10:14.434 INFO kablam!   --> src/attribute_errors/mod.rs:24:1
Oct 13 16:10:14.434 INFO kablam!    |
Oct 13 16:10:14.434 INFO kablam! 24 | pub struct FilteredAttrs<'a,F>{
Oct 13 16:10:14.434 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 16:10:14.434 INFO kablam!    |
Oct 13 16:10:14.434 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 16:10:14.434 INFO kablam! 
Oct 13 16:10:14.434 INFO kablam! warning: method is never used: `with_filter`
Oct 13 16:10:14.434 INFO kablam!   --> src/attribute_errors/mod.rs:37:5
Oct 13 16:10:14.434 INFO kablam!    |
Oct 13 16:10:14.434 INFO kablam! 37 | /     pub fn with_filter<F>(&'a self,filter:F)->FilteredAttrs<'a,F>
Oct 13 16:10:14.434 INFO kablam! 38 | |     where 
Oct 13 16:10:14.434 INFO kablam! 39 | |         F:Fn(&str)->bool
Oct 13 16:10:14.434 INFO kablam! 40 | |     {
Oct 13 16:10:14.434 INFO kablam! ...  |
Oct 13 16:10:14.434 INFO kablam! 44 | |         }
Oct 13 16:10:14.435 INFO kablam! 45 | |     }
Oct 13 16:10:14.435 INFO kablam!    | |_____^
Oct 13 16:10:14.435 INFO kablam! 
Oct 13 16:10:14.551 INFO kablam! warning: struct is never constructed: `FilteredAttrs`
Oct 13 16:10:14.551 INFO kablam!   --> src/attribute_errors/mod.rs:24:1
Oct 13 16:10:14.551 INFO kablam!    |
Oct 13 16:10:14.551 INFO kablam! 24 | pub struct FilteredAttrs<'a,F>{
Oct 13 16:10:14.551 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 16:10:14.551 INFO kablam!    |
Oct 13 16:10:14.551 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 16:10:14.551 INFO kablam! 
Oct 13 16:10:14.552 INFO kablam! warning: method is never used: `with_filter`
Oct 13 16:10:14.552 INFO kablam!   --> src/attribute_errors/mod.rs:37:5
Oct 13 16:10:14.556 INFO kablam!    |
Oct 13 16:10:14.556 INFO kablam! 37 | /     pub fn with_filter<F>(&'a self,filter:F)->FilteredAttrs<'a,F>
Oct 13 16:10:14.557 INFO kablam! 38 | |     where 
Oct 13 16:10:14.557 INFO kablam! 39 | |         F:Fn(&str)->bool
Oct 13 16:10:14.557 INFO kablam! 40 | |     {
Oct 13 16:10:14.557 INFO kablam! ...  |
Oct 13 16:10:14.557 INFO kablam! 44 | |         }
Oct 13 16:10:14.564 INFO kablam! 45 | |     }
Oct 13 16:10:14.564 INFO kablam!    | |_____^
Oct 13 16:10:14.564 INFO kablam! 
Oct 13 16:10:14.906 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 23.41s
Oct 13 16:10:14.913 INFO kablam! su: No module specific data is present
Oct 13 16:10:15.310 INFO running `"docker" "rm" "-f" "05ce0711d55280828b813d77c713f9f687c26ceccc1c1faec8e0ab5127005e30"`
Oct 13 16:10:15.599 INFO blam! 05ce0711d55280828b813d77c713f9f687c26ceccc1c1faec8e0ab5127005e30