Chapter 5 failed, databaseurl changed

[developer-yl]

I cannot even compile the code if I change the database user to a user that does not exist

DATABASE_URL=postgres://invaliduser:trupwd@127.0.0.1:5432/truwitter

I get this error Failed to connect to the database: error returned from database: role "invaliduser" does not exist
Error: Custom { kind: Other, error: "Database connection failed" }

When I do a "cargo clean -p tutor-db"

I am unable to compile and get this error:

rror: error returned from database: role "invaliduser" does not exist
--> tutor-db/src/bin/../iter4/db_access.rs:7:23
|
7 | let course_rows = sqlx::query!(
| __________________^
8 | | "SELECT tutor_id, course_id, course_name, posted_time FROM ezy_course_c4 where tutor_id = $1",
9 | | tutor_id
10 | | )
| |^
|
= note: this error originates in the macro $crate::sqlx_macros::expand_query which comes from the expansion of the macro sqlx::query (in Nightly builds, run with -Z macro-backtrace for more info)

error: error returned from database: role "invaliduser" does not exist
--> tutor-db/src/bin/../iter4/db_access.rs:31:22
|
31 | let course_row = sqlx::query!(
| ______________________^
32 | | "SELECT tutor_id, course_id, course_name, posted_time FROM
33 | | ezy_course_c4 where tutor_id = $1 and course_id = $2",
34 | | tutor_id, course_id
35 | | )
| |_____^
|
= note: this error originates in the macro $crate::sqlx_macros::expand_query which comes from the expansion of the macro sqlx::query (in Nightly builds, run with -Z macro-backtrace for more info)

error: error returned from database: role "invaliduser" does not exist
--> tutor-db/src/bin/../iter4/db_access.rs:49:22
|
49 | let course_row = sqlx::query!("insert into ezy_course_c4(
| ^
50 | | course_id, tutor_id, course_name) values ($1, $2, $3) returning
51 | | tutor_id, course_id, course_name, posted_time", new_course.course_id,
52 | | new_course.tutor_id, new_course.course_name)
| |__________________________^
|
= note: this error originates in the macro $crate::sqlx_macros::expand_query which comes from the expansion of the macro sqlx::query (in Nightly builds, run with -Z macro-backtrace for more info)