/lib64/libc.so.6: version `GLIBC_2.18' not found

[Dgame]

I'm building the lambda on Ubuntu with the basic example you've provided in the README.
It builds without any errors but if I upload and test it on aws in crashes with:

{
  "errorType": "Runtime.ExitError",
  "errorMessage": "RequestId: c24d34ab-f4a9-11e8-a9b7-d5cbfb363674 Error: Runtime exited with error: exit status 1"
}

The log output is:

START RequestId: c24d34ab-f4a9-11e8-a9b7-d5cbfb363674 Version: $LATEST
/var/task/bootstrap: /lib64/libc.so.6: version `GLIBC_2.18' not found (required by /var/task/bootstrap)
END RequestId: c24d34ab-f4a9-11e8-a9b7-d5cbfb363674
REPORT RequestId: c24d34ab-f4a9-11e8-a9b7-d5cbfb363674	Duration: 61.35 ms	Billed Duration: 100 ms 	Memory Size: 128 MB	Max Memory Used: 12 MB	
RequestId: c24d34ab-f4a9-11e8-a9b7-d5cbfb363674 Error: Runtime exited with error: exit status 1
Runtime.ExitError

[davidbarsky]

Oh man, I'm not sure, and I don't have an Ubuntu instance handy. Can you try building this using musl-libc instead of GNU libc? This would entail adding the x86_64-unknown-linux-musl target using rustup.

[sapessi]

@Dgame I would probably use a docker image to build in local. AWS Lambda uses Amazon Linux 2017.03.1. We are working to add Rust support to SAM build.

[drogus]

I get the same error when compiling on Arch Linux. And it seems that using amazonlinux doesn't help, building with a docker image yields the same result. Here's a Dockerfile that I used: https://gist.github.com/drogus/e16260baa0210a30922a3808a9eed8ff

After building it I just ran the command from the README:

cargo build -p lambda_runtime --example basic --release 

[drogus]

That said, building with musl works correctly (on Arch I installed the musl package and added a x86_64-unknown-linux-musl target)

[sapessi]

Mh, I was able to cargo build successfully and run the basic example with this Dockerfile:

FROM amazonlinux:2017.03.1.20170812
RUN curl https://sh.rustup.rs -sSf | /bin/sh -s -- -y
ENV PATH="/root/.cargo/bin:${PATH}"
RUN rustup install stable
RUN yum install -y gcc gcc-c++ make openssl openssl-devel
RUN mkdir /code
WORKDIR /code

I will try to replicate with Nightly next, not sure what's causing your issue yet.

[Dgame]

@Dgame I would probably use a docker image to build in local. AWS Lambda uses Amazon Linux 2017.03.1. We are working to add Rust support to SAM build.

Well, we are already doing that, but there was the slight hope that building it locally would be faster.

Oh man, I'm not sure, and I don't have an Ubuntu instance handy. Can you try building this using musl-libc instead of GNU libc? This would entail adding the x86_64-unknown-linux-musl target using rustup.

I've tried but I get this:

rustup install stable-musl
info: syncing channel updates for 'stable-x86_64-unknown-linux-musl'
info: latest update on 2018-11-08, rust version 1.30.1 (1433507eb 2018-11-07)
error: target not found: 'x86_64-unknown-linux-musl'

[Dgame]

I've tried

cargo build --release --target=x86_64-unknown-linux-musl

but then I get those strange OpenSSL errors which I don't get if I drop --target=x86_64-unknown-linux-musl:

Compiling openssl-sys v0.9.39
error: failed to run custom build command for openssl-sys v0.9.39
process didn't exit successfully: /mnt/lambda/target/release/build/openssl-sys-a16ee2b07ae0e6c5/build-script-main (exit code: 101)
--- stdout
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_MUSL_OPENSSL_LIB_DIR
cargo:rerun-if-env-changed=OPENSSL_LIB_DIR
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_MUSL_OPENSSL_INCLUDE_DIR
cargo:rerun-if-env-changed=OPENSSL_INCLUDE_DIR
cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_MUSL_OPENSSL_DIR
cargo:rerun-if-env-changed=OPENSSL_DIR
run pkg_config fail: "Cross compilation detected. Use PKG_CONFIG_ALLOW_CROSS=1 to override"

--- stderr
thread 'main' panicked at '

Could not find directory of OpenSSL installation, and this -sys crate cannot
proceed without this knowledge. If OpenSSL is installed and this crate had
trouble finding it, you can set the OPENSSL_DIR environment variable for the
compilation process.

Make sure you also have the development packages of openssl installed.
For example, libssl-dev on Ubuntu or openssl-devel on Fedora.

If you're in a situation where you think the directory should be found
automatically, please open a bug at https://github.com/sfackler/rust-openssl
and include information about your system as well as this message.

$HOST = x86_64-unknown-linux-gnu
$TARGET = x86_64-unknown-linux-musl
openssl-sys = 0.9.39

', /home/dgame/.cargo/registry/src/mygithub.libinneed.workers.dev-1ecc6299db9ec823/openssl-sys-0.9.39/build/main.rs:269:9
note: Run with RUST_BACKTRACE=1 for a backtrace.

warning: build failed, waiting for other jobs to finish...
error: build failed

Any ideas?

[sapessi]

@Dgame Are you compiling on a Mac or in a container? In a Mac, you get these errors because the version of OpenSSL and source you need are not available or the compiler/linker cannot find them. There's a pretty good explanation on StackOverflow here. I would recommend using a docker container for building with the Dockerfile from my previous answer.

[drogus]

@Dgame I'm on ARCH so I'm not sure if it helps you in any way, but I had to specify openssl paths and allow cross compilation:

OPENSSL_LIB_DIR=/usr/lib/openssl-1.0
OPENSSL_INCLUDE_DIR=/usr/include/openssl-1.0
PKG_CONFIG_ALLOW_CROSS=1

[Dgame]

@sapessi
I'm using Ubuntu 18.04 and only get those pesky ssl errors if I append --target=x86_64-unknown-linux-musl. Without it, it compiles fine but will crash with the error message you can see in my initial post.

@drogus
Thanks, I'll try that next. :)

[sapessi]

On thing I should have added @Dgame, is that if you use the Amazon Linux Docker container to build then you don't have to specify a --target option in the build command.

[dbcfd]

Until some of the command line tools finish, you may want to use the docker and cargo_config from https://github.com/srijs/rust-aws-lambda/tree/master/docker

More information on setting up environment here: https://github.com/srijs/rust-aws-lambda/blob/master/docs/getting-started.md#Deploy

[marcomagdy]

@Dgame you could also try using the C++ runtime. It deals with this issue seamlessly ;) you can build on Ubuntu, ArchLinux, Alpine, etc.

[Dgame]

@marcomagdy No, thanks. ;) I've already written the code in rust. It's just about the build time. With Docker it takes ~15 min, without <4min.