Can't update dependencies

[TorstenStueber]

Description
When updating the dependencies using the command cargo update, then a mysterious version conflict is reported.

Steps to Reproduce
Check out branch bridge-poc and un cargo update.

Expected vs. Actual Behavior
Expected behavior: no error reported.

Actual behavior: the following error is shown

pdating crates.io index
error: failed to select a version for `snow`.
    ... required by package `libp2p-noise v0.29.0`
    ... which is depended on by `libp2p v0.34.0`
    ... which is depended on by `sc-cli v0.9.0`
    ... which is depended on by `frame-benchmarking-cli v3.0.0`
    ... which is depended on by `pendulum-node v3.0.0 (/Users/torsten/Documents/development/satoshipay/pendulum/pnd-tmp/node)`
versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1

all possible versions conflict with previously selected packages.

  previously selected package `snow v0.7.1`
    ... which is depended on by `libp2p-noise v0.29.0`
    ... which is depended on by `libp2p v0.34.0`
    ... which is depended on by `sc-cli v0.9.0`
    ... which is depended on by `frame-benchmarking-cli v3.0.0`
    ... which is depended on by `pendulum-node v3.0.0 (/Users/torsten/Documents/development/satoshipay/pendulum/pnd-tmp/node)`

failed to select a version for `snow` which could resolve this conflict

What is strange is that this version conflict does not seem to make any sense: it indicates that version 0.7.1 conflicts with the requirement ^0.7.1, which allows for versions 0.7.2, 0.7.1 .

[morgueye4]

looks like related to this

Also after checking for a while opened also this one

[TorstenStueber]

Okay, thanks. Seems like the upstream link provides a solution. TL;DR: never execute a blanket cargo update in a Substrate project.