Sep 21 13:43:36.889 INFO checking adapton-0.3.30 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 13:43:36.889 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 13:43:36.889 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 13:43:37.097 INFO blam! ece43f71e37164acb8e035f4427bd0f91b1d83183e2a6ecadd71b9e04c55a141
Sep 21 13:43:37.099 INFO running `"docker" "start" "-a" "ece43f71e37164acb8e035f4427bd0f91b1d83183e2a6ecadd71b9e04c55a141"`
Sep 21 13:43:38.338 INFO kablam! usermod: no changes
Sep 21 13:43:38.434 INFO kablam!     Checking adapton v0.3.30 (/source)
Sep 21 13:43:39.638 INFO kablam! warning: unnecessary parentheses around function argument
Sep 21 13:43:39.638 INFO kablam!     --> src/catalog/collections.rs:1070:62
Sep 21 13:43:39.638 INFO kablam!      |
Sep 21 13:43:39.638 INFO kablam! 1070 |                ||mergesort_list_of_tree2::<_,_,_,List<_>>(t, (Some(name_of_usize(666)))));
Sep 21 13:43:39.638 INFO kablam!      |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 21 13:43:39.638 INFO kablam!      |
Sep 21 13:43:39.638 INFO kablam!      = note: #[warn(unused_parens)] on by default
Sep 21 13:43:39.638 INFO kablam! 
Sep 21 13:43:43.938 INFO kablam! warning: unused import: `ListIntro`
Sep 21 13:43:43.938 INFO kablam!  --> benches/tries_bench.rs:5:49
Sep 21 13:43:43.938 INFO kablam!   |
Sep 21 13:43:43.938 INFO kablam! 5 | use adapton::catalog::collections::{Dir2, List, ListIntro, Tree, monoid_of_tree, tree_of_list};
Sep 21 13:43:43.938 INFO kablam!   |                                                 ^^^^^^^^^
Sep 21 13:43:43.938 INFO kablam!   |
Sep 21 13:43:43.938 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 13:43:43.938 INFO kablam! 
Sep 21 13:43:46.171 INFO kablam! warning: function is never used: `explore_rec`
Sep 21 13:43:46.171 INFO kablam!     --> src/engine.rs:2810:5
Sep 21 13:43:46.171 INFO kablam!      |
Sep 21 13:43:46.171 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 21 13:43:46.171 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 13:43:46.171 INFO kablam!      |
Sep 21 13:43:46.171 INFO kablam!      = note: #[warn(dead_code)] on by default
Sep 21 13:43:46.171 INFO kablam! 
Sep 21 13:43:46.206 INFO kablam! warning: function cannot return without recursing
Sep 21 13:43:46.206 INFO kablam!     --> src/engine.rs:2810:5
Sep 21 13:43:46.206 INFO kablam!      |
Sep 21 13:43:46.206 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 21 13:43:46.206 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
Sep 21 13:43:46.206 INFO kablam! ...
Sep 21 13:43:46.206 INFO kablam! 2813 |         let mut av = explore_rec(a);
Sep 21 13:43:46.206 INFO kablam!      |                      -------------- recursive call site
Sep 21 13:43:46.206 INFO kablam!      |
Sep 21 13:43:46.206 INFO kablam! note: lint level defined here
Sep 21 13:43:46.206 INFO kablam!     --> src/engine.rs:2809:12
Sep 21 13:43:46.206 INFO kablam!      |
Sep 21 13:43:46.206 INFO kablam! 2809 |     #[warn(unconditional_recursion)]
Sep 21 13:43:46.206 INFO kablam!      |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 13:43:46.206 INFO kablam!      = help: a `loop` may express intention better if this is on purpose
Sep 21 13:43:46.206 INFO kablam! 
Sep 21 13:43:46.300 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.92s
Sep 21 13:43:46.309 INFO kablam! su: No module specific data is present
Sep 21 13:43:47.397 INFO running `"docker" "rm" "-f" "ece43f71e37164acb8e035f4427bd0f91b1d83183e2a6ecadd71b9e04c55a141"`
Sep 21 13:43:47.573 INFO blam! ece43f71e37164acb8e035f4427bd0f91b1d83183e2a6ecadd71b9e04c55a141