2 packages from ocsigen/lwt at 6.0.0~beta00

[raphael-proust]

This pull-request concerns:

• lwt.6.0.0~beta00: Promises and event-driven I/O
• lwt_direct.6.0.0~beta00: Direct-style control-flow and await for Lwt

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• Homepage: https://github.com/ocsigen/lwt
• Source repo: git+https://github.com/ocsigen/lwt.git
• Bug tracker: https://github.com/ocsigen/lwt/issues

---

🐫 Pull-request generated by opam-publish v2.5.1

[raphael-proust]

A few backwards compatibilities have been restored since the alphas. I'll make a separate PR to adjust the revdep packages.

[mseri]

Should we wait for that?
As an aside, does it supersede the alpha? Should we close the PR (unless already done?)

[mseri]

lwt_log is failing:

#=== ERROR while compiling lwt_log.1.1.2 ======================================#
# context              2.4.1 | linux/x86_64 | ocaml-base-compiler.4.14.2 | file:///home/opam/opam-repository
# path                 ~/.opam/4.14/.opam-switch/build/lwt_log.1.1.2
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lwt_log -j 255
# exit-code            1
# env-file             ~/.opam/log/lwt_log-8-a2a2bd.env
# output-file          ~/.opam/log/lwt_log-8-a2a2bd.out
### output ###
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -w +A -g -bin-annot -I src/unix/.lwt_log.objs/byte -I /home/opam/.opam/4.14/lib/bytes -I /home/opam/.opam/4.14/lib/domain_shims -I /home/opam/.opam/4.14/lib/lwt -I /home/opam/.opam/4.14/lib/lwt/unix -I /home/opam/.opam/4.14/lib/ocaml/threads -I /home/opam/.opam/4.14/lib/ocplib-endian -I /home/opam/.opam/4.14/lib/ocplib-endian/bigstring -I src/core/.lwt_log_core.objs/byte -intf-suffix .ml -no-alias-deps -o src/unix/.lwt_log.objs/byte/lwt_daemon.cmo -c -impl src/unix/lwt_daemon.ml)
# File "src/unix/lwt_daemon.ml", line 64, characters 49-68:
# 64 |     Lwt_sequence.iter_node_l Lwt_sequence.remove Lwt_main.exit_hooks [@ocaml.warning "-3"];
#                                                       ^^^^^^^^^^^^^^^^^^^
# Error: Unbound value Lwt_main.exit_hooks
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlopt.opt -w -40 -w +A -g -I src/unix/.lwt_log.objs/byte -I src/unix/.lwt_log.objs/native -I /home/opam/.opam/4.14/lib/bytes -I /home/opam/.opam/4.14/lib/domain_shims -I /home/opam/.opam/4.14/lib/lwt -I /home/opam/.opam/4.14/lib/lwt/unix -I /home/opam/.opam/4.14/lib/ocaml/threads -I /home/opam/.opam/4.14/lib/ocplib-endian -I /home/opam/.opam/4.14/lib/ocplib-endian/bigstring -I src/core/.lwt_log_core.objs/byte -I src/core/.lwt_log_core.objs/native -intf-suffix .ml -no-alias-deps -o src/unix/.lwt_log.objs/native/lwt_daemon.cmx -c -impl src/unix/lwt_daemon.ml)
# File "src/unix/lwt_daemon.ml", line 64, characters 49-68:
# 64 |     Lwt_sequence.iter_node_l Lwt_sequence.remove Lwt_main.exit_hooks [@ocaml.warning "-3"];
#                                                       ^^^^^^^^^^^^^^^^^^^
# Error: Unbound value Lwt_main.exit_hooks

We could add an upper bound in the pr adjusting the other bounds

[raphael-proust]

I made #28641 to fix the incompatibilities

[mseri]

I have retriggered the build. Let's see if we can merge now

[mseri]

Can you check: lwt_direct.6.0.0~beta00
lower-bounds (failed: This expression has type Lwt.Private.storage ref)

Also there are some segmentation faults among the failures, and I fear also cohttp weird failure without error may be one.