Sep 20 06:51:01.611 INFO checking adapton-0.3.30 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 20 06:51:01.611 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 20 06:51:01.611 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-4/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 06:51:01.795 INFO blam! 971a6d52e8ce7a282ab227616387e69a095d91a9d1d3e10edfd725140e04f65b
Sep 20 06:51:01.797 INFO running `"docker" "start" "-a" "971a6d52e8ce7a282ab227616387e69a095d91a9d1d3e10edfd725140e04f65b"`
Sep 20 06:51:02.795 INFO kablam! usermod: no changes
Sep 20 06:51:02.879 INFO kablam!     Checking adapton v0.3.30 (/source)
Sep 20 06:51:03.575 INFO kablam! warning: unnecessary parentheses around function argument
Sep 20 06:51:03.575 INFO kablam!     --> src/catalog/collections.rs:1070:62
Sep 20 06:51:03.575 INFO kablam!      |
Sep 20 06:51:03.575 INFO kablam! 1070 |                ||mergesort_list_of_tree2::<_,_,_,List<_>>(t, (Some(name_of_usize(666)))));
Sep 20 06:51:03.575 INFO kablam!      |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 20 06:51:03.575 INFO kablam!      |
Sep 20 06:51:03.575 INFO kablam!      = note: #[warn(unused_parens)] on by default
Sep 20 06:51:03.575 INFO kablam! 
Sep 20 06:51:06.311 INFO kablam! warning: function is never used: `explore_rec`
Sep 20 06:51:06.311 INFO kablam!     --> src/engine.rs:2810:5
Sep 20 06:51:06.311 INFO kablam!      |
Sep 20 06:51:06.311 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 20 06:51:06.311 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:51:06.311 INFO kablam!      |
Sep 20 06:51:06.311 INFO kablam!      = note: #[warn(dead_code)] on by default
Sep 20 06:51:06.311 INFO kablam! 
Sep 20 06:51:06.398 INFO kablam! warning: function cannot return without recursing
Sep 20 06:51:06.398 INFO kablam!     --> src/engine.rs:2810:5
Sep 20 06:51:06.398 INFO kablam!      |
Sep 20 06:51:06.398 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 20 06:51:06.398 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
Sep 20 06:51:06.398 INFO kablam! ...
Sep 20 06:51:06.398 INFO kablam! 2813 |         let mut av = explore_rec(a);
Sep 20 06:51:06.398 INFO kablam!      |                      -------------- recursive call site
Sep 20 06:51:06.398 INFO kablam!      |
Sep 20 06:51:06.398 INFO kablam! note: lint level defined here
Sep 20 06:51:06.398 INFO kablam!     --> src/engine.rs:2809:12
Sep 20 06:51:06.398 INFO kablam!      |
Sep 20 06:51:06.398 INFO kablam! 2809 |     #[warn(unconditional_recursion)]
Sep 20 06:51:06.398 INFO kablam!      |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 06:51:06.398 INFO kablam!      = help: a `loop` may express intention better if this is on purpose
Sep 20 06:51:06.398 INFO kablam! 
Sep 20 06:51:06.990 INFO kablam! warning: unused import: `ListIntro`
Sep 20 06:51:06.990 INFO kablam!  --> benches/tries_bench.rs:5:49
Sep 20 06:51:06.990 INFO kablam!   |
Sep 20 06:51:06.990 INFO kablam! 5 | use adapton::catalog::collections::{Dir2, List, ListIntro, Tree, monoid_of_tree, tree_of_list};
Sep 20 06:51:06.990 INFO kablam!   |                                                 ^^^^^^^^^
Sep 20 06:51:06.990 INFO kablam!   |
Sep 20 06:51:06.990 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 20 06:51:06.990 INFO kablam! 
Sep 20 06:51:07.371 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.55s
Sep 20 06:51:07.374 INFO kablam! su: No module specific data is present
Sep 20 06:51:08.100 INFO running `"docker" "rm" "-f" "971a6d52e8ce7a282ab227616387e69a095d91a9d1d3e10edfd725140e04f65b"`
Sep 20 06:51:08.229 INFO blam! 971a6d52e8ce7a282ab227616387e69a095d91a9d1d3e10edfd725140e04f65b