$ env FAST=y make check
./run-build --batch-mode --load ../tests/check.scm --eval '(%exit)'
Not a debugging version.  No flags to set.
;Running tests in "compiler/test-fasdump" in environment (compiler portable-fasdump)...
;  Generating SCode for file: "test-fasdump.scm" => "test-fasdump.bin"... done
;  Compiling file: "test-fasdump.bin" => "test-fasdump.com"... done
;... done
;Running tests in "compiler/test-fgopt-conect"...
;  Generating SCode for file: "test-fgopt-conect.scm" => "test-fgopt-conect.bin"... done
;  Compiling file: "test-fgopt-conect.bin" => "test-fgopt-conect.com"... done
;... done
;Running tests in "compiler/test-open-code"...
;  Generating SCode for file: "test-open-code.scm" => "test-open-code.bin"... done
;  Compiling file: "test-open-code.bin" => "test-open-code.com"... done
;... done
;Running tests in "compiler/test-toplev"...
;  Generating SCode for file: "test-toplev.scm" => "test-toplev.bin"... done
;  Compiling file: "test-toplev.bin" => "test-toplev.com"... done
;... done
;Running tests in "compiler/test-varname"...
;  Generating SCode for file: "test-varname.scm" => "test-varname.bin"... done
;  Compiling file: "test-varname.bin" => "test-varname.com"... done
;... done
;Running tests in "compiler/test-vartrap"...
;  Generating SCode for file: "test-vartrap.scm" => "test-vartrap.bin"... done
;  Compiling file: "test-vartrap.bin" => "test-vartrap.com"... done
;... done
;Running tests in "compiler/test-y"...
;  Generating SCode for file: "test-y.scm" => "test-y.bin"... done
;  Compiling file: "test-y.bin" => "test-y.com"... done
;... done
;Running tests in "microcode/test-chacha"...
;  Generating SCode for file: "test-chacha.scm" => "test-chacha.bin"... done
;  Compiling file: "test-chacha.bin" => "test-chacha.com"... done
;... done
;Running tests in "microcode/test-flonum-casts"...
;  Generating SCode for file: "test-flonum-casts.scm" => "test-flonum-casts.bin"... done
;  Compiling file: "test-flonum-casts.bin" => "test-flonum-casts.com"... done
;... done
;Running tests in "microcode/test-flonum-casts.scm"... done
;Running tests in "microcode/test-flonum-casts.com"... done
;Running tests in "microcode/test-flonum-except"...
;  Generating SCode for file: "test-flonum-except.scm" => "test-flonum-except.bin"... done
;  Compiling file: "test-flonum-except.bin" => "test-flonum-except.com"... done
;... done
;Running tests in "microcode/test-keccak"...
;  Generating SCode for file: "test-keccak.scm" => "test-keccak.bin"... done
;  Compiling file: "test-keccak.bin" => "test-keccak.com"... done
;... done
;Running tests in "microcode/test-lookup"...
;  Generating SCode for file: "test-lookup.scm" => "test-lookup.bin"... done
;  Compiling file: "test-lookup.bin" => "test-lookup.com"... done
;... done
;Running tests in "runtime/test-access"...
;  Generating SCode for file: "test-access.scm" => "test-access.bin"... done
;  Compiling file: "test-access.bin" => "test-access.com"... done
;... done
;Running tests in "runtime/test-arith"...
;  Generating SCode for file: "test-arith.scm" => "test-arith.bin"... done
;  Compiling file: "test-arith.bin" => "test-arith.com"... done
;... done
;Running tests in "runtime/test-ieee754"...
;  Generating SCode for file: "test-ieee754.scm" => "test-ieee754.bin"... done
;  Compiling file: "test-ieee754.bin" => "test-ieee754.com"... done
;... done
;Running tests in "runtime/test-binary-port"...
;  Generating SCode for file: "test-binary-port.scm" => "test-binary-port.bin"... done
;  Compiling file: "test-binary-port.bin" => "test-binary-port.com"... done
;... done
;Running tests in "runtime/test-bit-string"...
;  Generating SCode for file: "test-bit-string.scm" => "test-bit-string.bin"... done
;  Compiling file: "test-bit-string.bin" => "test-bit-string.com"... done
;... done
;Running tests in "runtime/test-bundle"...
;  Generating SCode for file: "test-bundle.scm" => "test-bundle.bin"... done
;  Compiling file: "test-bundle.bin" => "test-bundle.com"... done
;... done
;Running tests in "runtime/test-bytevector"...
;  Generating SCode for file: "test-bytevector.scm" => "test-bytevector.bin"... done
;  Compiling file: "test-bytevector.bin" => "test-bytevector.com"... done
;... done
;Running tests in "runtime/test-char" in environment (runtime)...
;  Generating SCode for file: "test-char.scm" => "test-char.bin"... done
;  Compiling file: "test-char.bin" => "test-char.com"... done
;... done
;Running tests in "runtime/test-char-set" in environment (runtime character-set)...
;  Generating SCode for file: "test-char-set.scm" => "test-char-set.bin"... done
;  Compiling file: "test-char-set.bin" => "test-char-set.com"... done
;... done
;Running tests in "runtime/test-compound-predicate" in environment (runtime compound-predicate)...
;  Generating SCode for file: "test-compound-predicate.scm" => "test-compound-predicate.bin"... done
;  Compiling file: "test-compound-predicate.bin" => "test-compound-predicate.com"... done
;... done
;Running tests in "runtime/test-digraph" in environment (runtime)...
;  Generating SCode for file: "test-digraph.scm" => "test-digraph.bin"... done
;  Compiling file: "test-digraph.bin" => "test-digraph.com"... done
;... done
;Running tests in "runtime/test-division"...
;  Generating SCode for file: "test-division.scm" => "test-division.bin"... done
;  Compiling file: "test-division.bin" => "test-division.com"... done
;... done
;Running tests in "runtime/test-dragon4"...
;  Generating SCode for file: "test-dragon4.scm" => "test-dragon4.bin"... done
;  Compiling file: "test-dragon4.bin" => "test-dragon4.com"... done
;... done
;Running tests in "runtime/test-dynamic-env"...
;  Generating SCode for file: "test-dynamic-env.scm" => "test-dynamic-env.bin"... done
;  Compiling file: "test-dynamic-env.bin" => "test-dynamic-env.com"... done
;... done
;Running tests in "runtime/test-entity"...
;  Generating SCode for file: "test-entity.scm" => "test-entity.bin"... done
;  Compiling file: "test-entity.bin" => "test-entity.com"... done
;... done
;Running tests in "runtime/test-ephemeron"...
;  Generating SCode for file: "test-ephemeron.scm" => "test-ephemeron.bin"... done
;  Compiling file: "test-ephemeron.bin" => "test-ephemeron.com"... done
;  Dumping "/var/tmp/sch008157_0"... done
;... done
;Running tests in "runtime/test-file-attributes" in environment (runtime)...
;  Generating SCode for file: "test-file-attributes.scm" => "test-file-attributes.bin"... done
;  Compiling file: "test-file-attributes.bin" => "test-file-attributes.com"... done
;... done
;Running tests in "runtime/test-floenv"...
;  Generating SCode for file: "test-floenv.scm" => "test-floenv.bin"... done
;  Compiling file: "test-floenv.bin" => "test-floenv.com"... done
;rounding-mode-independent:downward/floor/inline failed 2 sub-tests out of 10 in 0. seconds:
    .5 assertion 1: value of (floor/inline 0.) was -0. but expected an object eqv? to 0.
    .6 assertion 1: value of (floor/inline .5) was -0. but expected an object eqv? to 0.
;rounding-mode-independent:downward/floor failed 2 sub-tests out of 10 in 0. seconds:
    .5 assertion 1: value of (floor 0.) was -0. but expected an object eqv? to 0.
    .6 assertion 1: value of (floor .5) was -0. but expected an object eqv? to 0.
;rounding-mode-independent:downward/flo:floor/inline failed 2 sub-tests out of 10 in .01 seconds:
    .5 assertion 1: value of (flo:floor/inline 0.) was -0. but expected an object eqv? to 0.
    .6 assertion 1: value of (flo:floor/inline .5) was -0. but expected an object eqv? to 0.
;rounding-mode-independent:downward/flo:floor failed 2 sub-tests out of 10 in 0. seconds:
    .5 assertion 1: value of (flo:floor 0.) was -0. but expected an object eqv? to 0.
    .6 assertion 1: value of (flo:floor .5) was -0. but expected an object eqv? to 0.
;... done
;Running tests in "runtime/test-flonum"...
;  Generating SCode for file: "test-flonum.scm" => "test-flonum.bin"... done
;  Compiling file: "test-flonum.bin" => "test-flonum.com"... done
;... done
;Running tests in "runtime/test-flonum.bin"... done
;Running tests in "runtime/test-flonum.com"... done
;Running tests in "runtime/test-hash-table"...
;  Generating SCode for file: "test-hash-table.scm" => "test-hash-table.bin"... done
;  Compiling file: "test-hash-table.bin" => "test-hash-table.com"... done
;... done
;Running tests in "runtime/test-integer-bits"...
;  Generating SCode for file: "test-integer-bits.scm" => "test-integer-bits.bin"... done
;  Compiling file: "test-integer-bits.bin" => "test-integer-bits.com"... done
;... done
;Running tests in "runtime/test-letrec"...
;  Generating SCode for file: "test-letrec.scm" => "test-letrec.bin"... done
;  Compiling file: "test-letrec.bin" => "test-letrec.com"... done
;... done
;Running tests in "runtime/test-library-parser" in environment (runtime library)...
;  Generating SCode for file: "test-library-parser.scm" => "test-library-parser.bin"... done
;  Compiling file: "test-library-parser.bin" => "test-library-parser.com"... done
;... done
;Running tests in "runtime/test-library-ixports" in environment (runtime library)...
;  Generating SCode for file: "test-library-ixports.scm" => "test-library-ixports.bin"... done
;  Compiling file: "test-library-ixports.bin" => "test-library-ixports.com"... done
;... done
;Running tests in "runtime/test-library-loader" in environment (runtime library)...
;  Generating SCode for file: "test-library-loader.scm" => "test-library-loader.bin"... done
;  Compiling file: "test-library-loader.bin" => "test-library-loader.com"... done
;... done
;Running tests in "runtime/test-list"...
;  Generating SCode for file: "test-list.scm" => "test-list.bin"... done
;  Compiling file: "test-list.bin" => "test-list.com"... done
;... done
;Running tests in "runtime/test-md5"...
;  Generating SCode for file: "test-md5.scm" => "test-md5.bin"... done
;  Compiling file: "test-md5.bin" => "test-md5.com"... done
;... done
;Running tests in "runtime/test-mime-codec"...
;  Generating SCode for file: "test-mime-codec.scm" => "test-mime-codec.bin"... done
;  Compiling file: "test-mime-codec.bin" => "test-mime-codec.com"... done
;... done
;Running tests in "runtime/test-numpar"...
;  Generating SCode for file: "test-numpar.scm" => "test-numpar.bin"... done
;  Compiling file: "test-numpar.bin" => "test-numpar.com"... done
;... done
;Running tests in "runtime/test-optional"...
;  Generating SCode for file: "test-optional.scm" => "test-optional.bin"... done
;  Compiling file: "test-optional.bin" => "test-optional.com"... done
;... done
;Running tests in "runtime/test-optional.bin"... done
;Running tests in "runtime/test-optional.com"... done
;Running tests in "runtime/test-parametric-predicate" in environment (runtime parametric-predicate)...
;  Generating SCode for file: "test-parametric-predicate.scm" => "test-parametric-predicate.bin"... done
;  Compiling file: "test-parametric-predicate.bin" => "test-parametric-predicate.com"... done
;... done
;Running tests in "runtime/test-pp"...
;  Generating SCode for file: "test-pp.scm" => "test-pp.bin"... done
;  Compiling file: "test-pp.bin" => "test-pp.com"... done
;... done
;Running tests in "runtime/test-predicate"...
;  Generating SCode for file: "test-predicate.scm" => "test-predicate.bin"... done
;  Compiling file: "test-predicate.bin" => "test-predicate.com"... done
;... done
;Running tests in "runtime/test-predicate-dispatch" in environment (runtime predicate-dispatch)...
;  Generating SCode for file: "test-predicate-dispatch.scm" => "test-predicate-dispatch.bin"... done
;  Compiling file: "test-predicate-dispatch.bin" => "test-predicate-dispatch.com"... done
;... done
;Running tests in "runtime/test-printer" in environment (runtime printer)...
;  Generating SCode for file: "test-printer.scm" => "test-printer.bin"... done
;  Compiling file: "test-printer.bin" => "test-printer.com"... done
;... done
;Running tests in "runtime/test-process"...
;  Generating SCode for file: "test-process.scm" => "test-process.bin"... done
;  Compiling file: "test-process.bin" => "test-process.com"... done
;... done
;Running tests in "runtime/test-promise"...
;  Generating SCode for file: "test-promise.scm" => "test-promise.bin"... done
;  Compiling file: "test-promise.bin" => "test-promise.com"... done
;... done
;Running tests in "runtime/test-random"...
;  Generating SCode for file: "test-random.scm" => "test-random.bin"... done
;  Compiling file: "test-random.bin" => "test-random.com"... done
;... done
;Running tests in "runtime/test-readwrite"...
;  Generating SCode for file: "test-readwrite.scm" => "test-readwrite.bin"... done
;  Compiling file: "test-readwrite.bin" => "test-readwrite.com"... done
;... done
;Running tests in "runtime/test-record"...
;  Generating SCode for file: "test-record.scm" => "test-record.bin"... done
;  Compiling file: "test-record.bin" => "test-record.com"... done
;... done
;Running tests in "runtime/test-regsexp"...
;  Generating SCode for file: "test-regsexp.scm" => "test-regsexp.bin"... done
;  Compiling file: "test-regsexp.bin" => "test-regsexp.com"... done
;... done
;Running tests in "runtime/test-rgxcmp"...
;  Generating SCode for file: "test-rgxcmp.scm" => "test-rgxcmp.bin"... done
;  Compiling file: "test-rgxcmp.bin" => "test-rgxcmp.com"... done
;... done
;Running tests in "runtime/test-sha3"...
;  Generating SCode for file: "test-sha3.scm" => "test-sha3.bin"... done
;  Compiling file: "test-sha3.bin" => "test-sha3.com"... done
;... done
;Running tests in "runtime/test-srfi-1"... done
;Running tests in "runtime/test-srfi-115"...
;  Generating SCode for file: "test-srfi-115.scm" => "test-srfi-115.bin"... done
;  Compiling file: "test-srfi-115.bin" => "test-srfi-115.com"... done
;... done
;Running tests in "runtime/test-string"...
;  Generating SCode for file: "test-string.scm" => "test-string.bin"... done
;  Compiling file: "test-string.bin" => "test-string.com"... done
;... done
;Running tests in "runtime/test-string-normalization"...
;  Generating SCode for file: "test-string-normalization.scm" => "test-string-normalization.bin"... done
;  Compiling file: "test-string-normalization.bin" => "test-string-normalization.com"... done
;... done
;Running tests in "runtime/test-string-search"...
;  Generating SCode for file: "test-string-search.scm" => "test-string-search.bin"... done
;  Compiling file: "test-string-search.bin" => "test-string-search.com"... done
;... done
;Running tests in "runtime/test-syncproc"...
;  Generating SCode for file: "test-syncproc.scm" => "test-syncproc.bin"... done
;  Compiling file: "test-syncproc.bin" => "test-syncproc.com"... done

;account-for-times: start time not recorded
;... done
;Running tests in "runtime/test-syntax"...
;  Generating SCode for file: "test-syntax.scm" => "test-syntax.bin"... done
;  Compiling file: "test-syntax.bin" => "test-syntax.com"... done
;... done
;Running tests in "runtime/test-syntax-rename"...
;  Generating SCode for file: "test-syntax-rename.scm" => "test-syntax-rename.bin"... done
;  Compiling file: "test-syntax-rename.bin" => "test-syntax-rename.com"... done
;... done
;Running tests in "runtime/test-thread-queue"...
;  Generating SCode for file: "test-thread-queue.scm" => "test-thread-queue.bin"... done
;  Compiling file: "test-thread-queue.bin" => "test-thread-queue.com"... done
;... done
;Running tests in "runtime/test-ucd-grapheme"...
;  Generating SCode for file: "test-ucd-grapheme.scm" => "test-ucd-grapheme.bin"... done
;  Compiling file: "test-ucd-grapheme.bin" => "test-ucd-grapheme.com"... done
;... done
;Running tests in "runtime/test-ucd-word"...
;  Generating SCode for file: "test-ucd-word.scm" => "test-ucd-word.bin"... done
;  Compiling file: "test-ucd-word.bin" => "test-ucd-word.com"... done
;... done
;Running tests in "runtime/test-url"...
;  Generating SCode for file: "test-url.scm" => "test-url.bin"... done
;  Compiling file: "test-url.bin" => "test-url.com"... done
;... done
;Running tests in "runtime/test-wttree" in environment (runtime wt-tree)...
;  Generating SCode for file: "test-wttree.scm" => "test-wttree.bin"... done
;  Compiling file: "test-wttree.bin" => "test-wttree.com"... done
;... done
;Running tests in "ffi/test-ffi"...
;  Generating SCode for file: "test-ffi.scm" => "test-ffi.bin"... done
;  Compiling file: "test-ffi.bin" => "test-ffi.com"... done
./autobuild.sh in tests/ffi/
;Test FFI build failed: 1
;To continue, call RESTART with an option number:
; (RESTART 1) => Return to read-eval-print level 1.

2 error>