2024-06-17 13:33.38: New job: test c-cube/iter https://github.com/c-cube/iter.git#refs/heads/main (fc69ce4c919cdd04fb5041410fd61d5a3f742702) (linux-x86_64:ubuntu-23.10-4.14_opam-2.1) Base: ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17 Opam project build To reproduce locally: git clone --recursive "https://github.com/c-cube/iter.git" -b "main" && cd "iter" && git reset --hard fc69ce4c cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17 # ubuntu-23.10-4.14_opam-2.1 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" WORKDIR /src RUN sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN cd ~/opam-repository && (git cat-file -e a6069b9eebba0e2b70cdbbd834bc800eb6d671fb || git fetch origin master) && git reset -q --hard a6069b9eebba0e2b70cdbbd834bc800eb6d671fb && git log --no-decorate -n1 --oneline && opam update -u COPY --chown=1000:1000 iter.opam ./ RUN opam pin add -yn iter.dev './' ENV DEPS="astring.0.8.5 base-bigarray.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.6.9 csexp.1.5.2 dune.3.16.0 fmt.0.9.0 host-arch-x86_64.1 host-system-other.1 logs.0.7.0 mdx.2.4.1 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.3.6.7 ocamlbuild.0.14.3 ocamlfind.1.9.6 ounit2.2.2.7 qcheck-core.0.21.3 re.1.11.0 result.1.5 seq.base stdlib-shims.0.3.0 topkg.1.0.7" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.1 --depext-only -y iter.dev $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . /src RUN opam exec -- dune build @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2024-06-17 13:33.38: Using cache hint "c-cube/iter-ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17-ubuntu-23.10-4.14_opam-2.1-6909f612c6453b0b2c8917a1d75b004a" 2024-06-17 13:33.38: Using OBuilder spec: ((from ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17) (comment ubuntu-23.10-4.14_opam-2.1) (user (uid 1000) (gid 1000)) (env CLICOLOR_FORCE 1) (env OPAMCOLOR always) (workdir /src) (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam")) (run (shell "opam init --reinit -ni")) (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) (workdir /src) (run (shell "sudo chown opam /src")) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e a6069b9eebba0e2b70cdbbd834bc800eb6d671fb || git fetch origin master) && git reset -q --hard a6069b9eebba0e2b70cdbbd834bc800eb6d671fb && git log --no-decorate -n1 --oneline && opam update -u")) (copy (src iter.opam) (dst ./)) (run (network host) (shell "opam pin add -yn iter.dev './'")) (env DEPS "astring.0.8.5 base-bigarray.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.6.9 csexp.1.5.2 dune.3.16.0 fmt.0.9.0 host-arch-x86_64.1 host-system-other.1 logs.0.7.0 mdx.2.4.1 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.3.6.7 ocamlbuild.0.14.3 ocamlfind.1.9.6 ounit2.2.2.7 qcheck-core.0.21.3 re.1.11.0 result.1.5 seq.base stdlib-shims.0.3.0 topkg.1.0.7") (env CI true) (env OCAMLCI true) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam update --depexts && opam install --cli=2.1 --depext-only -y iter.dev $DEPS")) (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install $DEPS")) (copy (src .) (dst /src)) (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) ) 2024-06-17 13:33.38: Waiting for resource in pool OCluster 2024-06-19 16:20.08: Waiting for worker… 2024-06-19 16:23.45: Got resource from pool OCluster Building on x86-bm-c17.sw.ocaml.org hint: Using 'master' as the name for the initial branch. This default branch name hint: is subject to change. To configure the initial branch name to use in all hint: of your new repositories, which will suppress this warning, call: hint: hint: git config --global init.defaultBranch <name> hint: hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and hint: 'development'. The just-created branch can be renamed via this command: hint: hint: git branch -m <name> Initialized empty Git repository in /var/cache/obuilder/ocluster/git/iter.git-8f912dfd1e1fdbb9c6ccc62d6c2b80a3f39c22e2/.git/ HEAD is now at fc69ce4 faster doc build (from ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17) Unable to find image 'ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17' locally docker.io/ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17: Pulling from ocaml/opam f751edfc57fb: Pulling fs layer f751edfc57fb: Verifying Checksum f751edfc57fb: Download complete f751edfc57fb: Pull complete Digest: sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17 Status: Downloaded newer image for ocaml/opam@sha256:f0448c0f85a2f69e762d3e3e93fd89165fc9256efb9dc94d0f5321ce9e796f17 2024-06-19 16:25.37 ---> saved as "a24e00e0a6a141fd43fc7e711aefe8e77b12edf309373fb90cdc69a8f04abd82" /: (comment ubuntu-23.10-4.14_opam-2.1) /: (user (uid 1000) (gid 1000)) /: (env CLICOLOR_FORCE 1) /: (env OPAMCOLOR always) /: (workdir /src) /src: (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam")) 2024-06-19 16:25.37 ---> saved as "03f98fd1cb2b9f58a017f660e93aa4d6eaa7eddeb78bf02076e4aa51b20ee36a" /src: (run (shell "opam init --reinit -ni")) Configuring from /home/opam/.opamrc and then from built-in defaults. Checking for available remotes: rsync and local, git. - you won't be able to use mercurial repositories unless you install the hg command on your system. - you won't be able to use darcs repositories unless you install the darcs command on your system. This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.1, which can't be reverted. You may want to back it up before going further. Continue? [Y/n] y Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from file:///home/opam/opam-repository 2024-06-19 16:27.00 ---> saved as "99d42aac82e41a9942ea95dc19305c91262e5f9b825ec738c6434b0728feb945" /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 5.15.0-112-generic The OCaml toplevel, version 4.14.2 2.1.6 2024-06-19 16:27.00 ---> saved as "42f990391ac8e1bbd988c39334d0160d6bbf13ee1c05c4154449ab71aa153d67" /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2024-06-19 16:27.00 ---> saved as "88a7ba93bd555614a530444e8fa7fb8f7da45c2e0f72515e12009fb6a9b8c157" /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e a6069b9eebba0e2b70cdbbd834bc800eb6d671fb || git fetch origin master) && git reset -q --hard a6069b9eebba0e2b70cdbbd834bc800eb6d671fb && git log --no-decorate -n1 --oneline && opam update -u")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD c45f5bab71..59c0c54934 master -> origin/master a6069b9eeb [new release] dune (15 packages) (3.16.0) <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from file:///home/opam/opam-repository The following actions will be performed: - install host-arch-x86_64 1 - install host-system-other 1 - recompile ocaml-options-vanilla 1 [upstream or system changes] - recompile ocaml-base-compiler 4.14.2* [upstream or system changes] - recompile ocaml-config 2 [upstream or system changes] - recompile ocaml 4.14.2 [uses ocaml-base-compiler, ocaml-config] - recompile opam-depext 1.2.1-1 [uses ocaml] ===== 2 to install | 5 to recompile ===== <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved ocaml-config.2 (cached) -> removed ocaml-options-vanilla.1 -> installed host-arch-x86_64.1 -> installed host-system-other.1 -> installed ocaml-options-vanilla.1 -> retrieved opam-depext.1.2.1-1 (cached) -> retrieved ocaml-base-compiler.4.14.2 (cached) -> removed opam-depext.1.2.1-1 -> removed ocaml.4.14.2 -> removed ocaml-config.2 -> removed ocaml-base-compiler.4.14.2 -> installed ocaml-base-compiler.4.14.2 -> installed ocaml-config.2 -> installed ocaml.4.14.2 -> installed opam-depext.1.2.1-1 Done. <><> opam-depext.1.2.1-1 installed successfully <><><><><><><><><><><><><><><><> => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead # Run eval $(opam env) to update the current shell environment 2024-06-19 16:32.12 ---> saved as "4659889f00c5234d1772d6465e21bbbab3f71591e81c913aad1dbc60f28be779" /src: (copy (src iter.opam) (dst ./)) 2024-06-19 16:32.12 ---> saved as "05ddf86fdb4f2f0611912c25f368e2cc50d4301d09cf0b7c1e8ce8d4d8ab987d" /src: (run (network host) (shell "opam pin add -yn iter.dev './'")) [iter.dev] synchronised (file:///src) iter is now pinned to file:///src (version dev) 2024-06-19 16:32.17 ---> saved as "915916ee0ba6d74dd2f5f6ff78854173484c2bb26bf5532b4e41f2590f524f90" /src: (env DEPS "astring.0.8.5 base-bigarray.base base-threads.base base-unix.base camlp-streams.5.0.1 cmdliner.1.3.0 cppo.1.6.9 csexp.1.5.2 dune.3.16.0 fmt.0.9.0 host-arch-x86_64.1 host-system-other.1 logs.0.7.0 mdx.2.4.1 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 ocaml-version.3.6.7 ocamlbuild.0.14.3 ocamlfind.1.9.6 ounit2.2.2.7 qcheck-core.0.21.3 re.1.11.0 result.1.5 seq.base stdlib-shims.0.3.0 topkg.1.0.7") /src: (env CI true) /src: (env OCAMLCI true) /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam update --depexts && opam install --cli=2.1 --depext-only -y iter.dev $DEPS")) + /usr/bin/sudo "apt-get" "update" - Hit:1 http://archive.ubuntu.com/ubuntu mantic InRelease - Get:2 http://archive.ubuntu.com/ubuntu mantic-updates InRelease [127 kB] - Get:3 http://security.ubuntu.com/ubuntu mantic-security InRelease [127 kB] - Hit:4 http://archive.ubuntu.com/ubuntu mantic-backports InRelease - Get:5 http://security.ubuntu.com/ubuntu mantic-security/universe amd64 Packages [393 kB] - Get:6 http://security.ubuntu.com/ubuntu mantic-security/restricted amd64 Packages [484 kB] - Get:7 http://security.ubuntu.com/ubuntu mantic-security/main amd64 Packages [508 kB] - Get:8 http://archive.ubuntu.com/ubuntu mantic-updates/multiverse amd64 Packages [9920 B] - Get:9 http://archive.ubuntu.com/ubuntu mantic-updates/restricted amd64 Packages [506 kB] - Get:10 http://archive.ubuntu.com/ubuntu mantic-updates/main amd64 Packages [584 kB] - Get:11 http://archive.ubuntu.com/ubuntu mantic-updates/universe amd64 Packages [508 kB] - Fetched 3248 kB in 1s (3840 kB/s) - Reading package lists... - <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [iter.dev] synchronised (no changes) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 2). [NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2). [NOTE] Package ocaml is already installed (current version is 4.14.2). [NOTE] Package host-system-other is already installed (current version is 1). [NOTE] Package host-arch-x86_64 is already installed (current version is 1). [NOTE] Package base-unix is already installed (current version is base). [NOTE] Package base-threads is already installed (current version is base). [NOTE] Package base-bigarray is already installed (current version is base). 2024-06-19 16:32.46 ---> saved as "d092d0a8a644b797ca97d8ecbe7bc17f017445d31269c0145246fd1f748ba698" /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install $DEPS")) [NOTE] Package ocaml-options-vanilla is already installed (current version is 1). [NOTE] Package ocaml-config is already installed (current version is 2). [NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2). [NOTE] Package ocaml is already installed (current version is 4.14.2). [NOTE] Package host-system-other is already installed (current version is 1). [NOTE] Package host-arch-x86_64 is already installed (current version is 1). [NOTE] Package base-unix is already installed (current version is base). [NOTE] Package base-threads is already installed (current version is base). [NOTE] Package base-bigarray is already installed (current version is base). The following actions will be performed: - install ocamlbuild 0.14.3 - install dune 3.16.0 - install ocamlfind 1.9.6 - install cmdliner 1.3.0 - install seq base - install stdlib-shims 0.3.0 - install result 1.5 - install qcheck-core 0.21.3 - install ocaml-version 3.6.7 - install csexp 1.5.2 - install cppo 1.6.9 - install camlp-streams 5.0.1 - install topkg 1.0.7 - install re 1.11.0 - install ounit2 2.2.7 - install fmt 0.9.0 - install astring 0.8.5 - install logs 0.7.0 - install mdx 2.4.1 ===== 19 to install ===== <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved astring.0.8.5 (cached) -> retrieved camlp-streams.5.0.1 (cached) -> retrieved cmdliner.1.3.0 (cached) -> retrieved cppo.1.6.9 (cached) -> retrieved csexp.1.5.2 (cached) -> retrieved dune.3.16.0 (cached) -> retrieved fmt.0.9.0 (cached) -> retrieved logs.0.7.0 (cached) -> retrieved mdx.2.4.1 (cached) -> retrieved ocaml-version.3.6.7 (cached) -> retrieved ocamlbuild.0.14.3 (cached) -> retrieved ocamlfind.1.9.6 (cached) -> retrieved ounit2.2.2.7 (cached) -> retrieved qcheck-core.0.21.3 (cached) -> retrieved seq.base (cached) -> installed seq.base -> retrieved re.1.11.0 (cached) -> retrieved result.1.5 (cached) -> retrieved stdlib-shims.0.3.0 (cached) -> retrieved topkg.1.0.7 (cached) -> installed cmdliner.1.3.0 -> installed ocamlfind.1.9.6 -> installed ocamlbuild.0.14.3 -> installed topkg.1.0.7 -> installed fmt.0.9.0 -> installed astring.0.8.5 -> installed logs.0.7.0 -> installed dune.3.16.0 -> installed stdlib-shims.0.3.0 -> installed csexp.1.5.2 -> installed result.1.5 -> installed ocaml-version.3.6.7 -> installed camlp-streams.5.0.1 -> installed re.1.11.0 -> installed cppo.1.6.9 -> installed ounit2.2.2.7 -> installed qcheck-core.0.21.3 -> installed mdx.2.4.1 Done. # Run eval $(opam env) to update the current shell environment 2024-06-19 16:34.12 ---> saved as "45527949c2c8af7a47c6894c33590c3761a039b689de32d36834e69585724440" /src: (copy (src .) (dst /src)) 2024-06-19 16:34.12 ---> saved as "964aa3c5dce586fd6372231317b0561dcd08e9884d50cce446a569db2f62b938" /src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) File "benchs/dune", line 3, characters 17-26: 3 | (libraries iter benchmark) ^^^^^^^^^ Error: Library "benchmark" not found. -> required by _build/default/benchs/.bench_persistent_read.eobjs/byte/dune__exe__Bench_persistent.cmi -> required by alias benchs/check File "README.md", line 1, characters 0-0: /usr/bin/git --no-pager diff --no-index --color=always -u _build/default/README.md _build/default/README.md.corrected diff --git a/_build/default/README.md b/_build/default/README.md.corrected index 4c8f158..51bb1ab 100644 --- a/_build/default/README.md +++ b/_build/default/README.md.corrected @@ -5,9 +5,11 @@ Clean and efficient loop fusion for all your iterating needs! ```ocaml # #require "iter";; +No such package: iter # let p x = x mod 5 = 0 in Iter.(1 -- 5_000 |> filter p |> map (fun x -> x * x) |> fold (+) 0);; -- : int = 8345837500 +Line 2, characters 3-7: +Error: Unbound module Iter ``` `Iter` is a simple abstraction over `iter` functions @@ -52,16 +54,20 @@ With iter, if the source structure provides a # let q : int Queue.t = Queue.create();; val q : int Queue.t = <abstr> # Iter.( 1 -- 10 |> to_queue q);; -- : unit = () +Line 1, characters 1-5: +Error: Unbound module Iter # Iter.of_queue q |> Iter.to_list ;; -- : int list = [1; 2; 3; 4; 5; 6; 7; 8; 9; 10] +Line 1, characters 20-32: +Error: Unbound module Iter # let s : int Stack.t = Stack.create();; val s : int Stack.t = <abstr> # Iter.(of_queue q |> to_stack s);; -- : unit = () +Line 1, characters 1-5: +Error: Unbound module Iter # Iter.of_stack s |> Iter.to_list ;; -- : int list = [10; 9; 8; 7; 6; 5; 4; 3; 2; 1] +Line 1, characters 20-32: +Error: Unbound module Iter ``` Note how the list of elements is reversed when we transfer them @@ -84,7 +90,8 @@ val h : (int, string) Hashtbl.t = <abstr> # (* now to get the values *) Iter.of_hashtbl h |> Iter.map snd |> Iter.to_list;; -- : string list = ["6"; "2"; "8"; "7"; "3"; "5"; "4"; "9"; "0"; "10"; "1"] +Line 2, characters 40-52: +Error: Unbound module Iter ``` ### Replacing `for` loops @@ -95,7 +102,8 @@ use `Iter.(--) : int -> int -> int Iter.t`. ```ocaml # Iter.(1 -- 10_000_000 |> fold (+) 0);; -- : int = 50000005000000 +Line 1, characters 1-5: +Error: Unbound module Iter # let p x = x mod 5 = 0 in Iter.(1 -- 5_000 @@ -103,7 +111,8 @@ use `Iter.(--) : int -> int -> int Iter.t`. |> map (fun x -> x * x) |> fold (+) 0 );; -- : int = 8345837500 +Line 2, characters 3-7: +Error: Unbound module Iter ``` **NOTE**: with _flambda_ under sufficiently strong @@ -131,20 +140,24 @@ type term = Var of string | App of term * term | Lambda of term | App (a,b) -> Iter.append (subterms a) (subterms b)) ;; -val subterms : term -> term Iter.t = <fun> +Line 1, characters 33-39: +Error: Unbound module Iter # (* Now we can define many other functions easily! *) let vars t = Iter.filter_map (function Var s -> Some s | _ -> None) (subterms t) ;; -val vars : term -> string Iter.t = <fun> +Line 3, characters 5-20: +Error: Unbound module Iter # let size t = Iter.length (subterms t) ;; -val size : term -> int = <fun> +Line 1, characters 14-25: +Error: Unbound module Iter # let vars_list l = Iter.(of_list l |> flat_map vars);; -val vars_list : term list -> string Iter.t = <fun> +Line 1, characters 19-23: +Error: Unbound module Iter ``` ### Permutations @@ -157,21 +170,26 @@ enumerating the ways we can insert an element in a list. ```ocaml # open Iter.Infix;; +Line 1, characters 6-16: +Error: Unbound module Iter # let rec insert x l = match l with | [] -> Iter.return [x] | y :: tl -> Iter.append (insert x tl >|= fun tl' -> y :: tl') (Iter.return (x :: l)) ;; -val insert : 'a -> 'a list -> 'a list Iter.t = <fun> +Line 2, characters 11-22: +Error: Unbound module Iter # let rec permute l = match l with | [] -> Iter.return [] | x :: tl -> permute tl >>= insert x ;; -val permute : 'a list -> 'a list Iter.t = <fun> +Line 2, characters 11-22: +Error: Unbound module Iter # permute [1;2;3;4] |> Iter.take 2 |> Iter.to_list ;; -- : int list list = [[4; 3; 2; 1]; [4; 3; 1; 2]] +Line 1, characters 37-49: +Error: Unbound module Iter ``` ### Advanced example (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -w +a -warn-error -a+8 -strict-sequence -w +a -warn-error -a+8 -nolabels -g -bin-annot -I src/.iter.objs/byte -intf-suffix .ml -no-alias-deps -opaque -o src/.iter.objs/byte/iter.cmo -c -impl src/Iter.ml) File "src/Iter.ml", lines 204-209, characters 6-33: 204 | ......match !acc with 205 | | Nil -> acc := !cur 206 | | _ -> 207 | (match !tail with 208 | | Nil -> () 209 | | Cons r -> r.tl <- !cur) Warning 4 [fragile-match]: this pattern-matching is fragile. It will remain exhaustive when constructors are added to type node. (cd _build/default && /home/opam/.opam/4.14/bin/ocamlopt.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -w +a -warn-error -a+8 -strict-sequence -w +a -warn-error -a+8 -nolabels -g -O3 -unbox-closures -unbox-closures-factor 20 -I src/.iter.objs/byte -I src/.iter.objs/native -intf-suffix .ml -no-alias-deps -opaque -o src/.iter.objs/native/iter.cmx -c -impl src/Iter.ml) File "src/Iter.ml", lines 204-209, characters 6-33: 204 | ......match !acc with 205 | | Nil -> acc := !cur 206 | | _ -> 207 | (match !tail with 208 | | Nil -> () 209 | | Cons r -> r.tl <- !cur) Warning 4 [fragile-match]: this pattern-matching is fragile. It will remain exhaustive when constructors are added to type node. (cd _build/default/tests/unit && ./t_iter.exe) random seed: 20414225 ================================================================================ success (ran 4 tests) "/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1 2024-06-19 16:34.14: Job failed: Failed: Build failed