Sep 06 10:15:49.635 INFO checking adapton-0.3.30 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 10:15:49.635 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 10:15:49.635 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-6/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 10:15:49.865 INFO blam! 455322c59cf03f3f5acb9856e3ee32a5ea6fee562f2201652a0c53574a5eb810
Sep 06 10:15:49.867 INFO running `"docker" "start" "-a" "455322c59cf03f3f5acb9856e3ee32a5ea6fee562f2201652a0c53574a5eb810"`
Sep 06 10:15:50.727 INFO kablam! usermod: no changes
Sep 06 10:15:50.778 INFO kablam!     Checking adapton v0.3.30 (file:///source)
Sep 06 10:15:51.690 INFO kablam! warning: unnecessary parentheses around function argument
Sep 06 10:15:51.690 INFO kablam!     --> src/catalog/collections.rs:1070:62
Sep 06 10:15:51.690 INFO kablam!      |
Sep 06 10:15:51.690 INFO kablam! 1070 |                ||mergesort_list_of_tree2::<_,_,_,List<_>>(t, (Some(name_of_usize(666)))));
Sep 06 10:15:51.690 INFO kablam!      |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 06 10:15:51.690 INFO kablam!      |
Sep 06 10:15:51.690 INFO kablam!      = note: #[warn(unused_parens)] on by default
Sep 06 10:15:51.690 INFO kablam! 
Sep 06 10:15:55.805 INFO kablam! warning: function is never used: `explore_rec`
Sep 06 10:15:55.806 INFO kablam!     --> src/engine.rs:2810:5
Sep 06 10:15:55.806 INFO kablam!      |
Sep 06 10:15:55.806 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 06 10:15:55.806 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 10:15:55.806 INFO kablam!      |
Sep 06 10:15:55.806 INFO kablam!      = note: #[warn(dead_code)] on by default
Sep 06 10:15:55.806 INFO kablam! 
Sep 06 10:15:55.852 INFO kablam! warning: unused import: `ListIntro`
Sep 06 10:15:55.852 INFO kablam!  --> benches/tries_bench.rs:5:49
Sep 06 10:15:55.852 INFO kablam!   |
Sep 06 10:15:55.852 INFO kablam! 5 | use adapton::catalog::collections::{Dir2, List, ListIntro, Tree, monoid_of_tree, tree_of_list};
Sep 06 10:15:55.852 INFO kablam!   |                                                 ^^^^^^^^^
Sep 06 10:15:55.852 INFO kablam!   |
Sep 06 10:15:55.852 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 06 10:15:55.852 INFO kablam! 
Sep 06 10:15:56.059 INFO kablam! warning: function cannot return without recurring
Sep 06 10:15:56.059 INFO kablam!     --> src/engine.rs:2810:5
Sep 06 10:15:56.059 INFO kablam!      |
Sep 06 10:15:56.059 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 06 10:15:56.059 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recurring
Sep 06 10:15:56.059 INFO kablam! ...
Sep 06 10:15:56.059 INFO kablam! 2813 |         let mut av = explore_rec(a);
Sep 06 10:15:56.059 INFO kablam!      |                      -------------- recursive call site
Sep 06 10:15:56.059 INFO kablam!      |
Sep 06 10:15:56.059 INFO kablam! note: lint level defined here
Sep 06 10:15:56.059 INFO kablam!     --> src/engine.rs:2809:12
Sep 06 10:15:56.059 INFO kablam!      |
Sep 06 10:15:56.059 INFO kablam! 2809 |     #[warn(unconditional_recursion)]
Sep 06 10:15:56.059 INFO kablam!      |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 10:15:56.059 INFO kablam!      = help: a `loop` may express intention better if this is on purpose
Sep 06 10:15:56.059 INFO kablam! 
Sep 06 10:15:56.381 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.62s
Sep 06 10:15:56.384 INFO kablam! su: No module specific data is present
Sep 06 10:15:56.998 INFO running `"docker" "rm" "-f" "455322c59cf03f3f5acb9856e3ee32a5ea6fee562f2201652a0c53574a5eb810"`
Sep 06 10:15:57.110 INFO blam! 455322c59cf03f3f5acb9856e3ee32a5ea6fee562f2201652a0c53574a5eb810