Sep 02 21:22:16.861 INFO checking adapton-0.3.30 against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 02 21:22:16.861 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 02 21:22:16.861 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-3/try#952c7dbfa2628309f557b367929ffc17af20b332:/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=500" "-e" "CMD=cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 21:22:17.042 INFO blam! d1784ae29e9b5ed3f587b17d426abe75447fe8c6024eaf6d021c3cd2cfc16d7b
Sep 02 21:22:17.044 INFO running `"docker" "start" "-a" "d1784ae29e9b5ed3f587b17d426abe75447fe8c6024eaf6d021c3cd2cfc16d7b"`
Sep 02 21:22:17.823 INFO kablam!     Checking adapton v0.3.30 (file:///source)
Sep 02 21:22:18.833 INFO kablam! warning: unnecessary parentheses around function argument
Sep 02 21:22:18.833 INFO kablam!     --> src/catalog/collections.rs:1070:62
Sep 02 21:22:18.833 INFO kablam!      |
Sep 02 21:22:18.834 INFO kablam! 1070 |                ||mergesort_list_of_tree2::<_,_,_,List<_>>(t, (Some(name_of_usize(666)))));
Sep 02 21:22:18.834 INFO kablam!      |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 02 21:22:18.834 INFO kablam!      |
Sep 02 21:22:18.834 INFO kablam!      = note: #[warn(unused_parens)] on by default
Sep 02 21:22:18.834 INFO kablam! 
Sep 02 21:22:23.633 INFO kablam! warning: function is never used: `explore_rec`
Sep 02 21:22:23.633 INFO kablam!     --> src/engine.rs:2810:5
Sep 02 21:22:23.633 INFO kablam!      |
Sep 02 21:22:23.634 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 02 21:22:23.634 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 21:22:23.634 INFO kablam!      |
Sep 02 21:22:23.634 INFO kablam!      = note: #[warn(dead_code)] on by default
Sep 02 21:22:23.634 INFO kablam! 
Sep 02 21:22:23.734 INFO kablam! warning: function cannot return without recurring
Sep 02 21:22:23.735 INFO kablam!     --> src/engine.rs:2810:5
Sep 02 21:22:23.735 INFO kablam!      |
Sep 02 21:22:23.735 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 02 21:22:23.735 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recurring
Sep 02 21:22:23.735 INFO kablam! ...
Sep 02 21:22:23.735 INFO kablam! 2813 |         let mut av = explore_rec(a);
Sep 02 21:22:23.735 INFO kablam!      |                      -------------- recursive call site
Sep 02 21:22:23.735 INFO kablam!      |
Sep 02 21:22:23.735 INFO kablam! note: lint level defined here
Sep 02 21:22:23.735 INFO kablam!     --> src/engine.rs:2809:12
Sep 02 21:22:23.735 INFO kablam!      |
Sep 02 21:22:23.735 INFO kablam! 2809 |     #[warn(unconditional_recursion)]
Sep 02 21:22:23.735 INFO kablam!      |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 21:22:23.739 INFO kablam!      = help: a `loop` may express intention better if this is on purpose
Sep 02 21:22:23.739 INFO kablam! 
Sep 02 21:22:24.462 INFO kablam! warning: unused import: `ListIntro`
Sep 02 21:22:24.462 INFO kablam!  --> benches/tries_bench.rs:5:49
Sep 02 21:22:24.463 INFO kablam!   |
Sep 02 21:22:24.463 INFO kablam! 5 | use adapton::catalog::collections::{Dir2, List, ListIntro, Tree, monoid_of_tree, tree_of_list};
Sep 02 21:22:24.463 INFO kablam!   |                                                 ^^^^^^^^^
Sep 02 21:22:24.463 INFO kablam!   |
Sep 02 21:22:24.463 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 02 21:22:24.463 INFO kablam! 
Sep 02 21:22:25.460 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.65s
Sep 02 21:22:25.468 INFO kablam! su: No module specific data is present
Sep 02 21:22:25.964 INFO running `"docker" "rm" "-f" "d1784ae29e9b5ed3f587b17d426abe75447fe8c6024eaf6d021c3cd2cfc16d7b"`
Sep 02 21:22:26.117 INFO blam! d1784ae29e9b5ed3f587b17d426abe75447fe8c6024eaf6d021c3cd2cfc16d7b