1
 2
 3
 4
 5
 6
 7
 8
 9
10
11

error:
       … while calling the 'ceil' builtin
         at /pwd/in.nix:7:24:
            6|   floor-okay-weird-int = builtins.floor big;
            7|   ceil-bad-weird-int = builtins.ceil (big - 1);
             |                        ^
            8|   ceil-okay-weird-int = builtins.ceil big;

       error: builtins.ceil was corrupting your integer (was 9223090561878065151, became 9223090561878065152) in previous versions due to a historical Nix bug (https://github.com/NixOS/nix/issues/12899).
       This may be changed in the future to pass through integers as-is, which will change the semantics of this code.
       To suppress this error, use --extra-deprecated-features floor-ceil-corrupt-integers