composer: ZIP uncompress errors when installing/updating dependencies

My composer.json:

    "require": {
        "php"                                      : ">=5.5.9",
        "algolia/algoliasearch-client-php"         : "^1.6",
        "beberlei/metrics"                         : "^2.0",

        "// ... and more packages here"
    }

Output of composer diagnose:

$ composer diagnose

Checking composer.json: OK
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity to packagist: OK
Checking https connectivity to packagist: OK
Checking github.com oauth access: OK
Checking disk free space: OK
Checking pubkeys:
Tags Public Key Fingerprint: 57815BA2 7E54DC31 7ECC7CC5 573090D0  87719BA6 8F3BB723 4E5D42D0 84A14642
Dev Public Key Fingerprint: 4AC45767 E5EC2265 2F0C1167 CBBB8A2B  0C708369 153E328C AD90147D AFE50952
OK
Checking composer version: OK

When I run this command:

$ composer install

I get the following output:

- Installing beberlei/metrics (v2.3.0)
    Downloading: 100%
    Update failed ('<my-project>/vendor/beberlei/metrics/18ddcb3d31a1a6b6aaf65fef675bc3c9' is not a zip archive.
Failed to execute unzip '<my-project>/vendor/beberlei/metrics/18ddcb3d31a1a6b6aaf65fef675bc3c9' -d '<my-project>/vendor/composer/9c528af1' && chmod -R u+w '<my-project>/vendor/composer/9c528af1'

  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of <my-project>/vendor/beberlei/metrics/18ddcb3d31a1a6b6aaf65fef675bc3c9 or
        <my-project>/vendor/beberlei/metrics/18ddcb3d31a1a6b6aaf65fef675bc3c9.zip, and cannot find <my-project>/vendor/beberlei/metrics/18ddcb3d31a1a6b6aaf65fef675bc3c9.ZIP, period.)
    Would you like to try reinstalling the package instead [yes]?

  - Removing beberlei/metrics (v2.4.0)
  - Installing beberlei/metrics (v2.3.0)
    Downloading: 100%
    Invalid zip file, retrying...
  - Installing beberlei/metrics (v2.3.0)
    Downloading: 100%
    Invalid zip file, retrying...
  - Installing beberlei/metrics (v2.3.0)
    Downloading: 100%
    Failed to download beberlei/metrics from dist: '<my-project>/vendor/beberlei/metrics/18ddcb3d31a1a6b6aaf65fef675bc3c9' is not a zip archive.

    Now trying to download from source
    [...]

    (and the package is installed correctly)

At the end the packages are installed … but after several retries and after downloading them from source, which is much slower. The error happens randomly for some packages, but not for all of them.

This never happened to me before. The only recent change that I made was installing PHP 7.1:

PHP 7.1.0 (cli) (built: Dec  2 2016 09:19:56) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.1.0-dev, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.1.0, Copyright (c) 1999-2016, by Zend Technologies
    with blackfire v1.14.1~mac-x64-non_zts71, https://blackfire.io, by Blackfireio Inc.