David Thompson <dthompson2@worcester.edu> skribis:

> Ludovic Courtès <ludo@gnu.org> writes:

[...]

>>   2. strace the substituter and/or ‘guix publish’ to see exactly what
>>      happens on the wire.  Is the end-of-file marker string sent?  Is it
>>      received?  etc.
>
> Here's a snippet of the strace output:
>
>   http://192.168.1.157/.../iw3jn6a1avv78pp5v2cv42vyh0d8zi0g-guile-toxcore-0.1-6a9fbe0	 94.1% of 127.5 KiB) = 104
>   read(10, "vector tox-max-status-message-le"..., 7728) = 117
>   read(10, "                                "..., 7611) = 1448
>   read(10, "t-last-online (unwrap-tox tox) f"..., 6163) = 1448
>   read(10, "tox tox) nospam))\n\n(define/unwra"..., 4715) = 1448
>   read(10, " friend-number group-number)))\n\n"..., 3267) = 1448
>   read(10, ")))\n    (if (negative? result)\n "..., 1819) = 1819
>   http://192.168.1.157/.../iw3jn6a1avv78pp5v2cv42vyh0d8zi0g-guile-toxcore-0.1-6a9fbe0	100.0% of 127.5 KiB) = 104
>   http://192.168.1.157/.../iw3jn6a1avv78pp5v2cv42vyh0d8zi0g-guile-toxcore-0.1-6a9fbe0	100.0% of 127.5 KiB) = 104
>   brk(0x41875000)                         = 0x41875000
>   mmap(NULL, 135168, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3d2aaaf000
>   mremap(0x7f3d2aaaf000, 135168, 266240, MREMAP_MAYMOVE) = 0x7f3d2aa6e000
>   mremap(0x7f3d2aa6e000, 266240, 528384, MREMAP_MAYMOVE) = 0x7f3d2a9ed000
>   mremap(0x7f3d2a9ed000, 528384, 430080, MREMAP_MAYMOVE) = 0x7f3d2a9ed000
>   munmap(0x7f3d2a9ed000, 430080)          = 0
>   http://192.168.1.157/.../iw3jn6a1avv78pp5v2cv42vyh0d8zi0g-guile-toxcore-0.1-6a9fbe0	100.0% of 127.5 KiB) = 104
>   open("/gnu/store/72qm7kc9phvsiw6j7xgn1ii0f6s9mx8i-guix-0.8.3b09332/share/locale/en_US.UTF-8/LC_MESSAGES/guix.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
>   open("/gnu/store/72qm7kc9phvsiw6j7xgn1ii0f6s9mx8i-guix-0.8.3b09332/share/locale/en_US.utf8/LC_MESSAGES/guix.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
>   open("/gnu/store/72qm7kc9phvsiw6j7xgn1ii0f6s9mx8i-guix-0.8.3b09332/share/locale/en_US/LC_MESSAGES/guix.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
>   open("/gnu/store/72qm7kc9phvsiw6j7xgn1ii0f6s9mx8i-guix-0.8.3b09332/share/locale/en.UTF-8/LC_MESSAGES/guix.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
>   open("/gnu/store/72qm7kc9phvsiw6j7xgn1ii0f6s9mx8i-guix-0.8.3b09332/share/locale/en.utf8/LC_MESSAGES/guix.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
>   open("/gnu/store/72qm7kc9phvsiw6j7xgn1ii0f6s9mx8i-guix-0.8.3b09332/share/locale/en/LC_MESSAGES/guix.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
>   write(2, "guix substitute-binary: error: i"..., 62guix substitute-binary: error: invalid nar end-of-file marker
>   ) = 62
>   exit_group(1)                           = ?
>   +++ exited with 1 +++

Normally, when the error happens, the substituter has already created at
least one file in the target directory,
/gnu/store/iw3jn6a1avv78pp5v2cv42vyh0d8zi0g-guile-toxcore-0.1-6a9fbe0.

Could you apply the patch below, and then run:

  rm -rf foo
  ./pre-inst-env guix substitute-binary --substitute \
    /gnu/store/iw3jn6a1avv78pp5v2cv42vyh0d8zi0g-guile-toxcore-0.1-6a9fbe0 \
    $PWD/foo > stdout
  ls -lRa foo > ls-R

and then send ‘stdout’ and ‘ls-R’?

Could you also check if the files in ‘foo’ look corrupt or anything?