1.5.0 breaks h2 build #144

crackcomm · 2020-07-30T12:30:42Z

After re-installing my environment I'm getting an error on same code base:

error[E0107]: wrong number of type arguments: expected 3, found 2
  --> /home/pah/.cargo/registry/src/github.com-1ecc6299db9ec823/h2-0.2.6/src/proto/streams/store.rs:15:10
   |
15 |     ids: IndexMap<StreamId, SlabIndex>,
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 3 type arguments

error: aborting due to previous error

For more information about this error, try `rustc --explain E0107`.
error: could not compile `h2`.

Is there a way to somehow set has_std for indexmap crate so deep in dependency tree?

Edit: It works on windows.

The text was updated successfully, but these errors were encountered:

cuviper · 2020-07-30T15:30:59Z

I suppose your lock file had an older version before, but do you have any idea what that was? You could try cargo update -p indexmap --precise 1.4.0 or older, if the rest of your dependencies will allow it.

You say Windows works, so what is the target which fails? If that's using cross or a custom spec, it could be related to cuviper/autocfg#15.

Right now has_std is detected with an autocfg test, but we could add a manual feature to force that on.

crackcomm · 2020-07-30T15:55:17Z

@cuviper that's exactly what happened, Cargo.lock was old.

Windows works and stable on Linux works as well.

Now a strange thing happened. I tried to build the repo with stable which failed because of unstable features in my code but Checking h2 v0.2.6 passed. Once I switched back to nightly everything compiled just fine.

crackcomm · 2020-07-30T16:06:07Z

I'd close this issue because I think it should be in autocfg repo. Thanks for help to you @cuviper and few people from the discord server.

Edit: If I can help somehow let me know.

cuviper · 2020-07-30T16:10:32Z

Ultimately, whether the issue is here or in autocfg, I'm going to need a way to reproduce the failure. If you're doing something with with rustc flags that's not picked up by autocfg, that's the known issue, otherwise I don't know what's wrong.

crackcomm · 2020-07-30T16:31:52Z

Fortunately, it was fresh Ubuntu 18.04 on WSL initialized with a single script so you can reproduce this.

[dependencies.hyper]
version = "^0.13.7"
features = ["runtime", "stream"]

#!/bin/sh

sudo add-apt-repository -y ppa:avsm/ppa
sudo apt-get update &&
  sudo apt-get install -qy \
    m4 \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    software-properties-common \
    build-essential \
    git \
    wget patch diffutils zlib1g-dev libtinfo-dev \
    opam libffi-dev \
    pkg-config libssl-dev python3.8 python3.8-dev python3-pip &&
  sudo apt-get clean autoclean &&
  sudo apt-get autoremove -y

echo "alias python3=python3.8" >>$HOME/.bashrc

python3.8 -m pip install --upgrade pip
python3.8 -m pip install -r requirements-dev.txt

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo apt-key fingerprint 0EBFCD88
sudo add-apt-repository \
  "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"
sudo apt-get update
sudo apt-get install -qy docker-ce docker-ce-cli containerd.io
sudo usermod -a -G docker $USER

# Rust
curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2020-07-27 --no-modify-path -y
echo "source $HOME/.cargo/env" >>$HOME/.bashrc
source $HOME/.cargo/env
rustup component add rls rust-analysis rust-src

wget https://github.com/Kitware/CMake/releases/download/v3.11.0/cmake-3.11.0-Linux-x86_64.tar.gz
mkdir -p /tmp/cmake
tar -xf cmake-3.11.0-Linux-x86_64.tar.gz -C /tmp/cmake
sudo cp -r /tmp/cmake/cmake-3.11.0-Linux-x86_64/bin /usr/
sudo cp -r /tmp/cmake/cmake-3.11.0-Linux-x86_64/share /usr/
sudo cp -r /tmp/cmake/cmake-3.11.0-Linux-x86_64/doc /usr/share/
sudo cp -r /tmp/cmake/cmake-3.11.0-Linux-x86_64/man /usr/share/
rm -rf cmake-3.11.0-Linux-x86_64.tar.gz /tmp/cmake

opam init -a --disable-sandboxing
opam install -y dune core core_bench alcotest conf-rust-2018 ppx_jane cohttp lwt odoc torch || true
eval $(opam env)
echo "eval \$(opam env)" >>$HOME/.bashrc

cuviper · 2020-07-30T17:16:13Z

I'm running Fedora 32, but I tried your setup in a ubuntu:18.04 container.

python3.8 -m pip install -r requirements-dev.txt

I don't have the file for this step -- pressing on...

[dependencies.hyper]
version = "^0.13.7"
features = ["runtime", "stream"]

Are you suggesting an new project with just that dependency? Because this worked fine for me.

Now a strange thing happened. I tried to build the repo with stable which failed because of unstable features in my code but Checking h2 v0.2.6 passed. Once I switched back to nightly everything compiled just fine.

This fickle behavior makes me wonder if it's a problem with WSL, like a race in the filesystem or something.

If you manage to get back to a failed build, you can try to see what the build script did -- I get:

$ cat target/debug/build/indexmap-*/output
cargo:rustc-cfg=has_std
cargo:rerun-if-changed=build.rs

$ cat target/debug/build/indexmap-*/stderr
(nothing)

crackcomm · 2020-07-30T17:33:33Z

I removed target, ~/.cargo/registry and stable cargo.

$ cat target/debug/build/indexmap-*/output
cargo:rustc-cfg=has_std
cargo:rerun-if-changed=build.rs
$ cat target/debug/build/indexmap-*/stderr

Looks like I myself cannot reproduce that. Did I miss removing any directory?

This fickle behavior makes me wonder if it's a problem with WSL, like a race in the filesystem or something.

I was using the rust language server on vscode through WSL, maybe that could be the reason.

It is highly likely that the problem is related to WSL more than anything.

I will re-install Ubuntu again.

crackcomm · 2020-07-30T18:01:23Z

It failed with the same error.

$ cat target/debug/build/indexmap-*/output
cat: 'target/debug/build/indexmap-*/output': No such file or directory
$ cat target/debug/build/indexmap-*/stderr
cat: 'target/debug/build/indexmap-*/stderr': No such file or directory

Maybe you could try changing cargo to nightly:

curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly --no-modify-path -y

Edit: I also skipped opam install step.

Edit: FYI requirements-dev.txt:

pip>=18.1
pytest>=5.4.3
setuptools-rust>=0.10.6
toml>=0.10.1
pydoctor>=20.7.1
pyre-check>=0.0.46
nox>=2020.5.24
pathlib>=1.0

cuviper · 2020-07-30T18:09:01Z

$ cat target/debug/build/indexmap-*/output
cat: 'target/debug/build/indexmap-*/output': No such file or directory
$ cat target/debug/build/indexmap-*/stderr
cat: 'target/debug/build/indexmap-*/stderr': No such file or directory

If those don't exist, it's as if the build script didn't run at all... 😕

Maybe you could try changing cargo to nightly:

In my container I used the exact nightly you specified:

curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2020-07-27 --no-modify-path -y

$ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home:  /home/user/.rustup

nightly-2020-07-27-x86_64-unknown-linux-gnu (default)
rustc 1.47.0-nightly (6c8927b0c 2020-07-26)

$ rustc -Vv
rustc 1.47.0-nightly (6c8927b0c 2020-07-26)
binary: rustc
commit-hash: 6c8927b0cf80ceee19386026cf9d7fd4fd9d486f
commit-date: 2020-07-26
host: x86_64-unknown-linux-gnu
release: 1.47.0-nightly
LLVM version: 10.0

crackcomm · 2020-07-30T19:00:30Z

@cuviper before posting an issue I tried with fresh ubuntu twice: once with nightly in script and reinstalling to nightly-2020-07-27 and second time with nightly-2020-07-27 in script.

All following commands would fail with same error:

$ cargo test --release
(error)
$ cargo test
(error)
$ cargo check
(error)

I did (all in a mounted directory):

$ rm -rf ~/.cargo/registry
$ rustup toolchain install stable
$ rustup default stable
$ cargo test
(lots of errors about features not supported on stable)
For more information about this error, try `rustc --explain E0554`.
error[E0107]: wrong number of type arguments: expected 3, found 2
  --> /home/pah/.cargo/registry/src/github.com-1ecc6299db9ec823/h2-0.2.6/src/proto/streams/store.rs:15:10
   |
15 |     ids: IndexMap<StreamId, SlabIndex>,
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 3 type arguments

error: aborting due to previous error

For more information about this error, try `rustc --explain E0107`.
error: build failed
$ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home:  /home/pah/.rustup

installed toolchains
--------------------

stable-x86_64-unknown-linux-gnu (default)
nightly-2020-07-27-x86_64-unknown-linux-gnu
nightly-x86_64-unknown-linux-gnu

active toolchain
----------------

stable-x86_64-unknown-linux-gnu (default)
rustc 1.45.0 (5c1f21c3b 2020-07-13)

Now in ~/hyper, part of a virtual hard drive.

$ rustup default stable
$ git clone https://github.com/hyperium/hyper.git
$ cargo test --features stream --features runtime
(...)
test result: ok. 18 passed; 0 failed; 6 ignored; 0 measured; 0 filtered out

I copied my repo to $HOME and it just works!

cuviper · 2020-07-30T19:05:34Z

I've seen issues with Windows virtual drives before: rust-lang/rust#54216

crackcomm · 2020-07-30T19:11:35Z

Does autocfg rely in any way on file system modification time?

crackcomm · 2020-07-30T19:14:19Z

I got something!

$ cat target/debug/build/indexmap-*/output
cargo:rerun-if-changed=build.rs
$ cat target/debug/build/indexmap-*/stderr
error: could not copy "/mnt/d/crypto-market/cxmr/cxmr-master/cxmr/target/debug/build/indexmap-62ff17e61db67c74/out/probe0.probe0.3a1fbbbh-cgu.0.rcgu.ll" to "/mnt/d/crypto-market/cx
mr/cxmr-master/cxmr/target/debug/build/indexmap-62ff17e61db67c74/out/probe0.ll": Operation not permitted (os error 1)

error: aborting due to previous error

error: could not copy "/mnt/d/crypto-market/cxmr/cxmr-master/cxmr/target/debug/build/indexmap-62ff17e61db67c74/out/probe1.probe1.3a1fbbbh-cgu.0.rcgu.ll" to "/mnt/d/crypto-market/cx
mr/cxmr-master/cxmr/target/debug/build/indexmap-62ff17e61db67c74/out/probe1.ll": Operation not permitted (os error 1)

error: aborting due to previous error

warning: autocfg could not probe for `std`
error: could not copy "/mnt/d/crypto-market/cxmr/cxmr-master/cxmr/target/debug/build/indexmap-62ff17e61db67c74/out/probe2.probe2.3a1fbbbh-cgu.0.rcgu.ll" to "/mnt/d/crypto-market/cx
mr/cxmr-master/cxmr/target/debug/build/indexmap-62ff17e61db67c74/out/probe2.ll": Operation not permitted (os error 1)

error: aborting due to previous error

crackcomm · 2020-07-30T19:20:44Z

It tries to copy a file which doesn't exist.

The directory does exist though.

$ ls -lh target/debug/build/indexmap-62ff17e61db67c74/out
total 0
-rwxrwxrwx 1 root root 0 Jul 30 21:07 probe0.ll
-rwxrwxrwx 1 root root 0 Jul 30 21:07 probe1.ll
-rwxrwxrwx 1 root root 0 Jul 30 21:07 probe2.ll

The root is WSL thingie I can't chown it.

cuviper · 2020-07-30T19:25:11Z

All autocfg does is invoke rustc, so I'm afraid I'll have to deflect the problem there. You could try a workaround of setting a local CARGO_TARGET_DIR, as we did in rust-lang/rust#54216.

crackcomm · 2020-07-30T19:28:18Z

This workaround works and is actually much faster, thanks.

cuviper · 2020-07-30T19:42:21Z

Ok, great! If you want to chime in on that rust bug or file a new one, feel free, but I don't think there's anything we can really do in indexmap or autocfg to fix that.

If you know you need "std", e.g. relying on default `S = RandomState`, then you can enable this feature to force it on, bypassing target detection. This may help scenarios where `autocfg` fails detection, like issue indexmap-rs#144, but at the very least it will speed up the build script by avoiding extra `rustc` invocations.

Xiphoseer · 2022-03-22T15:05:38Z

Just FYI: I got here via the rust-server generator of https://openapi-generator.tech. They depend on hyper = "0.13" => h2 = "0.2.2" => indexmap = "1.0" and produce a .cargo/config with

[build]
rustflags = [
    "-W", "missing_docs",  # detects missing documentation for public members
    "-W", "trivial_casts",  # detects trivial casts which could be removed
    "-W", "trivial_numeric_casts",  # detects trivial casts of numeric types which could be removed
    "-W", "unsafe_code",  # usage of `unsafe` code
    "-W", "unused_qualifications",  # detects unnecessarily qualified names
    "-W", "unused_extern_crates",  # extern crates that are never used
    "-W", "unused_import_braces",  # unnecessary braces around an imported item
    "-D", "warnings",
]

which causes

warning: autocfg could not probe for `std`
error: missing documentation for the crate
 --> <anon>:1:1
  |
1 | extern crate std as probe;
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `-D missing-docs` implied by `-D warnings`

error: aborting due to previous error

with the same result (std not detected, missing 3rd generic parameter on IndexMap):

error[E0107]: this struct takes 3 generic arguments but 2 generic arguments were supplied
   --> C:\Users\<username>\.cargo\registry\src\github.com-1ecc6299db9ec823\h2-0.2.7\src\proto\streams\store.rs:15:10
    |
15  |     ids: IndexMap<StreamId, SlabIndex>,
    |          ^^^^^^^^ --------  --------- supplied 2 generic arguments
    |          |
    |          expected 3 generic arguments
    |
note: struct defined here, with 3 generic parameters: `K`, `V`, `S`
   --> C:\Users\<username>\.cargo\registry\src\github.com-1ecc6299db9ec823\indexmap-1.4.0\src\map.rs:303:12
    |
303 | pub struct IndexMap<K, V, S> {
    |            ^^^^^^^^ -  -  -
help: add missing generic argument
    |
15  |     ids: IndexMap<StreamId, SlabIndex, S>,
    |                                      +++

The solution for this case is to remove the -D warnings line.

IIUC this is essentially what https://rust-lang.github.io/rfcs/1193-cap-lints.html intends to avoid, so the solution would probably be to have autocfg add --cap-lints warn here.

cuviper · 2022-03-22T16:29:36Z

@Xiphoseer can you open an issue on autocfg about --cap-lints?

For indexmap, you can now enable the std feature and it will bypass the check. You can do this as a workaround from your own crate, and it will affect the build for your entire dependency tree. Then 2.0 in #219 plans to stop using autocfg at all.

cuviper closed this as completed Jul 30, 2020

cuviper mentioned this issue Aug 5, 2020

IndexMap called with the wrong number of type arguments? tower-rs/tower#466

Closed

cuviper mentioned this issue Aug 6, 2020

Add a feature to explicitly enable "std" #145

Merged

PeterGrace mentioned this issue Aug 29, 2020

IndexMap compilation fails "expected 3 type arguments" #151

Closed

cuviper mentioned this issue Nov 12, 2020

1.48 beta broken on mips due to copy_file_range EOVERFLOW rust-lang/rust#78979

Closed

taiki-e mentioned this issue Dec 22, 2020

Use autocfg instead of unstable feature(cfg_target_has_atomic) rust-lang/futures-rs#2294

Closed

jebrosen mentioned this issue Feb 23, 2021

Compiling rocket_http v0.4.7 fails with E0107 rwf2/Rocket#1548

Closed

pksunkara mentioned this issue Jun 13, 2021

Doesn't compile in WSL with ubuntu 20.04 clap-rs/clap#2535

Closed

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Xiphoseer mentioned this issue Mar 23, 2022

Consider adding --cap-lints=warn to probe rustc invocations cuviper/autocfg#41

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1.5.0 breaks h2 build #144

1.5.0 breaks h2 build #144

crackcomm commented Jul 30, 2020 •

edited

cuviper commented Jul 30, 2020

crackcomm commented Jul 30, 2020

crackcomm commented Jul 30, 2020 •

edited

cuviper commented Jul 30, 2020

crackcomm commented Jul 30, 2020 •

edited

cuviper commented Jul 30, 2020

crackcomm commented Jul 30, 2020

crackcomm commented Jul 30, 2020 •

edited

cuviper commented Jul 30, 2020

crackcomm commented Jul 30, 2020

cuviper commented Jul 30, 2020

crackcomm commented Jul 30, 2020

crackcomm commented Jul 30, 2020

crackcomm commented Jul 30, 2020

cuviper commented Jul 30, 2020

crackcomm commented Jul 30, 2020

cuviper commented Jul 30, 2020

Xiphoseer commented Mar 22, 2022

cuviper commented Mar 22, 2022

1.5.0 breaks h2 build #144

1.5.0 breaks h2 build #144

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crackcomm commented Jul 30, 2020 • edited

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