Duplicate cargo future incompatibilities reports

[rwxroot]

Problem

I have been getting warnings for the traitobject v0.1.0 crate and the number of future incompatibility reports has reached to 950, with the size of the .future-incompat-report.json file at 38kB.

Steps

No response

Possible Solution(s)

Check and return an id if it already exists.

Notes

No response

Version

cargo 1.66.1 (ad779e08b 2023-01-10)
release: 1.66.1
commit-hash: ad779e08be893e57a9e17a810223a3e966f8c0d8
commit-date: 2023-01-10
host: x86_64-unknown-linux-gnu
libgit2: 1.5.0 (sys:0.16.0 vendored)
libcurl: 7.83.1-DEV (sys:0.4.55+curl-7.83.1 vendored ssl:OpenSSL/1.1.1q)
os: Fedora 37.0.0 [64-bit]

[ehuss]

Can you say more about what this issue is about? What kind of concerns do you have? It is normal for cargo to increment the ID number for each build. It only keeps the last 5 entries on disk.

[rwxroot]

Can you say more about what this issue is about? What kind of concerns do you have? It is normal for cargo to increment the ID number for each build. It only keeps the last 5 entries on disk.

Thank you for your response. The issue here is the increment in ID. Shouldn't it be just 1 since the report is just for the one crate?

[ehuss]

Yea, if the report is identical to an existing one on-disk, it sounds reasonable to reuse an existing ID and avoid writing to the file. I think the code for that would likely go around here.