Sep 05 00:44:32.469 INFO checking adapton-0.3.30 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 05 00:44:32.469 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 05 00:44:32.469 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 00:44:32.645 INFO blam! d07cf4c57bedd6fb08cd5372b8e10e701928e4abcebe4c24477f1872714e14a3
Sep 05 00:44:32.647 INFO running `"docker" "start" "-a" "d07cf4c57bedd6fb08cd5372b8e10e701928e4abcebe4c24477f1872714e14a3"`
Sep 05 00:44:33.306 INFO kablam!     Checking adapton v0.3.30 (file:///source)
Sep 05 00:44:34.380 INFO kablam! warning: unnecessary parentheses around function argument
Sep 05 00:44:34.380 INFO kablam!     --> src/catalog/collections.rs:1070:62
Sep 05 00:44:34.380 INFO kablam!      |
Sep 05 00:44:34.380 INFO kablam! 1070 |                ||mergesort_list_of_tree2::<_,_,_,List<_>>(t, (Some(name_of_usize(666)))));
Sep 05 00:44:34.380 INFO kablam!      |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 05 00:44:34.380 INFO kablam!      |
Sep 05 00:44:34.380 INFO kablam!      = note: #[warn(unused_parens)] on by default
Sep 05 00:44:34.380 INFO kablam! 
Sep 05 00:44:39.410 INFO kablam! warning: function is never used: `explore_rec`
Sep 05 00:44:39.410 INFO kablam!     --> src/engine.rs:2810:5
Sep 05 00:44:39.410 INFO kablam!      |
Sep 05 00:44:39.410 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 05 00:44:39.410 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 05 00:44:39.410 INFO kablam!      |
Sep 05 00:44:39.410 INFO kablam!      = note: #[warn(dead_code)] on by default
Sep 05 00:44:39.410 INFO kablam! 
Sep 05 00:44:39.471 INFO kablam! warning: function cannot return without recurring
Sep 05 00:44:39.471 INFO kablam!     --> src/engine.rs:2810:5
Sep 05 00:44:39.471 INFO kablam!      |
Sep 05 00:44:39.471 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 05 00:44:39.471 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recurring
Sep 05 00:44:39.471 INFO kablam! ...
Sep 05 00:44:39.471 INFO kablam! 2813 |         let mut av = explore_rec(a);
Sep 05 00:44:39.471 INFO kablam!      |                      -------------- recursive call site
Sep 05 00:44:39.471 INFO kablam!      |
Sep 05 00:44:39.471 INFO kablam! note: lint level defined here
Sep 05 00:44:39.471 INFO kablam!     --> src/engine.rs:2809:12
Sep 05 00:44:39.471 INFO kablam!      |
Sep 05 00:44:39.471 INFO kablam! 2809 |     #[warn(unconditional_recursion)]
Sep 05 00:44:39.471 INFO kablam!      |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 05 00:44:39.471 INFO kablam!      = help: a `loop` may express intention better if this is on purpose
Sep 05 00:44:39.471 INFO kablam! 
Sep 05 00:44:41.153 INFO kablam! warning: unused import: `ListIntro`
Sep 05 00:44:41.153 INFO kablam!  --> benches/tries_bench.rs:5:49
Sep 05 00:44:41.153 INFO kablam!   |
Sep 05 00:44:41.153 INFO kablam! 5 | use adapton::catalog::collections::{Dir2, List, ListIntro, Tree, monoid_of_tree, tree_of_list};
Sep 05 00:44:41.154 INFO kablam!   |                                                 ^^^^^^^^^
Sep 05 00:44:41.162 INFO kablam!   |
Sep 05 00:44:41.163 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 05 00:44:41.163 INFO kablam! 
Sep 05 00:44:42.062 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.77s
Sep 05 00:44:42.068 INFO kablam! su: No module specific data is present
Sep 05 00:44:42.514 INFO running `"docker" "rm" "-f" "d07cf4c57bedd6fb08cd5372b8e10e701928e4abcebe4c24477f1872714e14a3"`
Sep 05 00:44:42.622 INFO blam! d07cf4c57bedd6fb08cd5372b8e10e701928e4abcebe4c24477f1872714e14a3