chore(deps): bump actix from 0.7.9 to 0.8.1

[dependabot-preview]

Bumps actix from 0.7.9 to 0.8.1.

Release notes

Sourced from actix's releases.

Actix 0.8.1

CHANGES

Added

• Added std::error::Error impl for SendError

Fixed

• Fixed concurrent system registry insert #248

Actix v0.8.0

CHANGES

Added

• Added std::error::Error impl for MailboxError

Changed

• Use trust-dns-resolver 0.11.0

Actix 0.8.0 alpha.3

CHANGES

Added

• Add Actor::start_in_arbiter with semantics of Supervisor::start_in_arbiter.

• Add ResponseError for ResolverError

• Add io::SinkWrite

Actix 0.8.0 alpha.2

CHANGES

Added

• Add actix-http error support for MailboxError

Actix 0.8.0 alpha.1

CHANGES

Changes

• Edition 2018

• Replace System/Arbiter with actix_rt::System and actix_rt::Arbiter

... (truncated)

Changelog

Sourced from actix's changelog.

[0.8.1] (2019-04-16)

Added

• Added std::error::Error impl for SendError

Fixed

• Fixed concurrent system registry insert #248

[0.8.0] (2019-04-14)

Added

• Added std::error::Error impl for MailboxError

Changed

• Use trust-dns-resolver 0.11.0

[0.8.0.alpha.3] (2019-04-12)

Added

• Add Actor::start_in_arbiter with semantics of Supervisor::start_in_arbiter.

• Add ResponseError for ResolverError

• Add io::SinkWrite

[0.8.0-alpha.2] (2019-03-29)

Added

• Add actix-http error support for MailboxError

[0.8.0-alpha.1] (2019-03-28)

Changes

• Edition 2018

• Replace System/Arbiter with actix_rt::System and actix_rt::Arbiter

• Add implementations for Message for Arc and Box

... (truncated)

Commits

• 90cdb71 Fixed concurrent system registry insert #248
• fbef927 Implement std::errror:Error for SendError (#250)
• b624594 prepare release
• af06f6d examples chat: Add signal handling in server (#247)
• 23a9e0c Merge pull request #244 from rotty/wip/extern-crate
• 6b45594 Merge branch 'master' into wip/extern-crate
• 150f3a3 Merge pull request #246 from rotty/wip/mailbox-error
• 83ed90f Merge pull request #245 from rotty/wip/chat-warnings
• 099f109 Add std::error::Error implementation for MailboxError
• 4442be4 examples chat: Fix warnings
• Additional commits viewable in compare view

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[fabianfreyer]

This needs 1.0 versions of both actix-web and actix-web-actors, which are only available in alpha and beta at the moment, so putting this on hold until they are stabilized.

Furthermore, askama can't link against actix-web 1.0 yet (djc/askama#234), as it is blocked on rwf2/cookie-rs#117:

error: failed to select a version for `ring`.
    ... required by package `cookie v0.11.0`
    ... which is depended on by `gotham v0.3.0`
    ... which is depended on by `askama_testing v0.1.0 (/home/user/Projects/askama/testing)`
versions that meet the requirements `^0.13.0` are: 0.13.5

the package `ring` links to the native library `ring-asm`, but it conflicts with a previous package which links to `ring-asm` as well:
package `ring v0.14.6`
    ... which is depended on by `actix-http v0.1.1`
    ... which is depended on by `awc v0.1.1`
    ... which is depended on by `actix-web v1.0.0-beta.1`
    ... which is depended on by `askama v0.8.0 (/home/user/Projects/askama/askama)`
    ... which is depended on by `askama_testing v0.1.0 (/home/user/Projects/askama/testing)`

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

[dependabot-preview]

Superseded by #36.