Sep 14 19:58:49.794 INFO checking adapton-0.3.30 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 19:58:49.794 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 19:58:49.794 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-6/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 19:58:50.131 INFO blam! 2cc04d9e252b4b9f116aa33b948a684d718194a876738d70c9c1cea6589d798d
Sep 14 19:58:50.136 INFO running `"docker" "start" "-a" "2cc04d9e252b4b9f116aa33b948a684d718194a876738d70c9c1cea6589d798d"`
Sep 14 19:58:51.229 INFO kablam! usermod: no changes
Sep 14 19:58:51.256 INFO kablam!     Checking adapton v0.3.30 (file:///source)
Sep 14 19:58:51.865 INFO kablam! warning: unnecessary parentheses around function argument
Sep 14 19:58:51.865 INFO kablam!     --> src/catalog/collections.rs:1070:62
Sep 14 19:58:51.865 INFO kablam!      |
Sep 14 19:58:51.865 INFO kablam! 1070 |                ||mergesort_list_of_tree2::<_,_,_,List<_>>(t, (Some(name_of_usize(666)))));
Sep 14 19:58:51.865 INFO kablam!      |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 14 19:58:51.865 INFO kablam!      |
Sep 14 19:58:51.865 INFO kablam!      = note: #[warn(unused_parens)] on by default
Sep 14 19:58:51.865 INFO kablam! 
Sep 14 19:58:54.349 INFO kablam! warning: function is never used: `explore_rec`
Sep 14 19:58:54.349 INFO kablam!     --> src/engine.rs:2810:5
Sep 14 19:58:54.349 INFO kablam!      |
Sep 14 19:58:54.349 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 14 19:58:54.349 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 19:58:54.349 INFO kablam!      |
Sep 14 19:58:54.349 INFO kablam!      = note: #[warn(dead_code)] on by default
Sep 14 19:58:54.349 INFO kablam! 
Sep 14 19:58:54.383 INFO kablam! warning: function cannot return without recursing
Sep 14 19:58:54.383 INFO kablam!     --> src/engine.rs:2810:5
Sep 14 19:58:54.383 INFO kablam!      |
Sep 14 19:58:54.383 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 14 19:58:54.383 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
Sep 14 19:58:54.383 INFO kablam! ...
Sep 14 19:58:54.383 INFO kablam! 2813 |         let mut av = explore_rec(a);
Sep 14 19:58:54.383 INFO kablam!      |                      -------------- recursive call site
Sep 14 19:58:54.383 INFO kablam!      |
Sep 14 19:58:54.383 INFO kablam! note: lint level defined here
Sep 14 19:58:54.383 INFO kablam!     --> src/engine.rs:2809:12
Sep 14 19:58:54.383 INFO kablam!      |
Sep 14 19:58:54.383 INFO kablam! 2809 |     #[warn(unconditional_recursion)]
Sep 14 19:58:54.383 INFO kablam!      |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 19:58:54.383 INFO kablam!      = help: a `loop` may express intention better if this is on purpose
Sep 14 19:58:54.383 INFO kablam! 
Sep 14 19:58:55.078 INFO kablam! warning: unused import: `ListIntro`
Sep 14 19:58:55.078 INFO kablam!  --> benches/tries_bench.rs:5:49
Sep 14 19:58:55.078 INFO kablam!   |
Sep 14 19:58:55.078 INFO kablam! 5 | use adapton::catalog::collections::{Dir2, List, ListIntro, Tree, monoid_of_tree, tree_of_list};
Sep 14 19:58:55.078 INFO kablam!   |                                                 ^^^^^^^^^
Sep 14 19:58:55.078 INFO kablam!   |
Sep 14 19:58:55.078 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 14 19:58:55.078 INFO kablam! 
Sep 14 19:58:55.353 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.11s
Sep 14 19:58:55.356 INFO kablam! su: No module specific data is present
Sep 14 19:58:55.897 INFO running `"docker" "rm" "-f" "2cc04d9e252b4b9f116aa33b948a684d718194a876738d70c9c1cea6589d798d"`
Sep 14 19:58:56.081 INFO blam! 2cc04d9e252b4b9f116aa33b948a684d718194a876738d70c9c1cea6589d798d