rustc-serialize | Deprecated serialization/deserialization for Rust | Serialization library
kandi X-RAY | rustc-serialize Summary
kandi X-RAY | rustc-serialize Summary
Deprecated serialization/deserialization for Rust
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Trending Discussions on rustc-serialize
QUESTION
Error is :-
...ANSWER
Answered 2020-Aug-02 at 22:08I think your problem is due to field order. The order of fields in your SQL does not match your model structs.
Using #[derive(Queryable)] assumes that the order of fields on the Post struct matches the columns in the posts table, so make sure to define them in the order seen in the schema.rs file.
The error message said it couldn't convert a Bool
to a timestamp, so that's why I think it mixed up your is_active
with one of the date fields.
QUESTION
Error I get:
...ANSWER
Answered 2019-Oct-18 at 09:21You've landed on a flaw from the Rust documentation tools; it picks up what is in a package, but doesn't show the limits.
The backend
module definition is defined as:
QUESTION
Compiling this code:
...ANSWER
Answered 2018-May-15 at 23:27ReaderBuilder
is only available in the csv 1.0 release, as indicated in the documentation. You are trying to use an older version.
Please consider following the instructions in the documentation:
Add this to your Cargo.toml:
QUESTION
With the following directory structure:
...ANSWER
Answered 2018-Feb-08 at 22:17In dep_a/Cargo.toml
, you did not specify default-features = false
on the dep_b
dependency. Therefore, the rustc-serialize
feature in dep_b
is enabled by default. The fact that you included a feature in dep_a
to enable dep_b
's rustc-serialize
doesn't change the fact that it's still enabled when dep_a
's feature is not enabled.
Thus, in dep_a/Cargo.toml
, you should have:
QUESTION
I have a chain of dependencies that end in depending optionally on a deprecated library. Concretely, I want to use nalgebra which depends indirectly on rustc-serialize as follows:
nalgebra -> alga -> num-complex -> (optional default) rustc-serialize
I can list the num-complex dependency in my Cargo.toml file and turn off the optional rustc-serialize dependency (num-complex = { version = "0.1.42", default-features = false }
), but is there a way to turn off this option all the way up the chain in Cargo.toml?
I have tried an alternative of cloning each of these and manipulating the local copies’ Cargo.toml file to refer to all the local dependencies, which works, but I would like a more maintainable way to do this if possible.
...ANSWER
Answered 2018-Feb-08 at 14:52I am fairly certain that this is not currently possible. I looked into doing this with Cargo's [patch]
section but it looks like you can't actually specify features in the patch section but can only overwrite the path or git url of a given dependency.
Using this section you could, however, make your workaround a bit neater. Just fork num-complex and remove the rustc-serialize
feature from the defaults. Using cargo-patch supply your fork like this:
QUESTION
I want to generate the epub ebook of The Rust Programming Language for my Kindle.
I downloaded this Github project to rebuild the book the second edition draft. When I do cargo run --release
, I encounter the following error:
ANSWER
Answered 2018-Jan-20 at 15:29rustc-serialize 0.3.19 was released on April 4, 2016. It includes the syntax:
QUESTION
I want to implement a blocking function that sends a POST request with a JSON body and returns the JSON object of the response:
...ANSWER
Answered 2017-Oct-27 at 09:47request.set_body()
takes a parameter that needs to be convertible into hyper::Body
(the default for B
in hyper::client::Request
).
If you take a look at the list of From
(the "dual" trait for Into
) implementations for hyper::Body
you'll see impl From<&'static [u8]> for Body
- this is where you're static lifetime requirement comes from (there is no impl<'a> From<&'a [u8]> for Body
that would take any other reference to "bytes").
But you'll also see impl From for Body
- so it should be fine to just pass msg
(which should be a String
as far as I can tell) instead of msg.as_bytes()
to request.set_body()
. It will take ownership of the string msg
, so you can't use it yourself afterwards anymore.
QUESTION
I encountered a problem when running cargo build
:
ANSWER
Answered 2017-Aug-03 at 13:45As listed in the url crate's GitHub issue, it previously used a form of TOML that was actually invalid. Newer versions of Cargo no longer parse that invalid form.
Nothing in your shown dependency list requires url version 0.5.7. url version 0.5.10 has been released, so perform a cargo update
to switch to it. Note that 0.5.10 was published on Aug 21, 2016, so it's almost a year old at this point.
QUESTION
onig_sys v61.1.0
I am compiling the rust program https://github.com/trishume/syntect by running make packs
. However it throws the error:
ANSWER
Answered 2017-Mar-18 at 15:10Oniguruma doesn't build with CMake on Windows MSVC. This was an open issue in the onig_sys
crate.
I've now updated the way the onig_sys
crate builds so it should work with MSVC now.
To update to this fixed version make sure the Cargo.toml
dependency for onig
is set to either 1.2
or 1.2.1
:
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