Sep 02 21:22:18.506 INFO checking adapton-0.3.30 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 21:22:18.507 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 21:22:18.507 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 21:22:18.718 INFO blam! d4886c8d8ad2580c588a09ace85234eda734071f6fc9f1122b57294cf66086f3
Sep 02 21:22:18.720 INFO running `"docker" "start" "-a" "d4886c8d8ad2580c588a09ace85234eda734071f6fc9f1122b57294cf66086f3"`
Sep 02 21:22:19.341 INFO kablam!     Checking adapton v0.3.30 (file:///source)
Sep 02 21:22:20.258 INFO kablam! warning: unnecessary parentheses around function argument
Sep 02 21:22:20.258 INFO kablam!     --> src/catalog/collections.rs:1070:62
Sep 02 21:22:20.258 INFO kablam!      |
Sep 02 21:22:20.258 INFO kablam! 1070 |                ||mergesort_list_of_tree2::<_,_,_,List<_>>(t, (Some(name_of_usize(666)))));
Sep 02 21:22:20.258 INFO kablam!      |                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Sep 02 21:22:20.258 INFO kablam!      |
Sep 02 21:22:20.258 INFO kablam!      = note: #[warn(unused_parens)] on by default
Sep 02 21:22:20.258 INFO kablam! 
Sep 02 21:22:26.678 INFO kablam! warning: unused import: `ListIntro`
Sep 02 21:22:26.678 INFO kablam!  --> benches/tries_bench.rs:5:49
Sep 02 21:22:26.678 INFO kablam!   |
Sep 02 21:22:26.678 INFO kablam! 5 | use adapton::catalog::collections::{Dir2, List, ListIntro, Tree, monoid_of_tree, tree_of_list};
Sep 02 21:22:26.678 INFO kablam!   |                                                 ^^^^^^^^^
Sep 02 21:22:26.678 INFO kablam!   |
Sep 02 21:22:26.678 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 02 21:22:26.678 INFO kablam! 
Sep 02 21:22:26.986 INFO kablam! warning: function is never used: `explore_rec`
Sep 02 21:22:26.986 INFO kablam!     --> src/engine.rs:2810:5
Sep 02 21:22:26.986 INFO kablam!      |
Sep 02 21:22:26.987 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 02 21:22:26.987 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 21:22:26.987 INFO kablam!      |
Sep 02 21:22:26.987 INFO kablam!      = note: #[warn(dead_code)] on by default
Sep 02 21:22:26.987 INFO kablam! 
Sep 02 21:22:27.052 INFO kablam! warning: function cannot return without recurring
Sep 02 21:22:27.052 INFO kablam!     --> src/engine.rs:2810:5
Sep 02 21:22:27.052 INFO kablam!      |
Sep 02 21:22:27.053 INFO kablam! 2810 |     fn explore_rec(cur_n:usize) -> Vec<usize> {
Sep 02 21:22:27.053 INFO kablam!      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recurring
Sep 02 21:22:27.053 INFO kablam! ...
Sep 02 21:22:27.053 INFO kablam! 2813 |         let mut av = explore_rec(a);
Sep 02 21:22:27.053 INFO kablam!      |                      -------------- recursive call site
Sep 02 21:22:27.053 INFO kablam!      |
Sep 02 21:22:27.053 INFO kablam! note: lint level defined here
Sep 02 21:22:27.053 INFO kablam!     --> src/engine.rs:2809:12
Sep 02 21:22:27.053 INFO kablam!      |
Sep 02 21:22:27.053 INFO kablam! 2809 |     #[warn(unconditional_recursion)]
Sep 02 21:22:27.053 INFO kablam!      |            ^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 21:22:27.053 INFO kablam!      = help: a `loop` may express intention better if this is on purpose
Sep 02 21:22:27.053 INFO kablam! 
Sep 02 21:22:27.447 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.12s
Sep 02 21:22:27.454 INFO kablam! su: No module specific data is present
Sep 02 21:22:27.947 INFO running `"docker" "rm" "-f" "d4886c8d8ad2580c588a09ace85234eda734071f6fc9f1122b57294cf66086f3"`
Sep 02 21:22:28.111 INFO blam! d4886c8d8ad2580c588a09ace85234eda734071f6fc9f1122b57294cf66086f3