diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3c406d0fd..1709562a2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,17 +24,7 @@ jobs:
         #   https://doc.rust-lang.org/rustc/codegen-options/index.html#incremental
         #   Well turning it off takes the extension target size down from 3G to 2G...
         CARGO_INCREMENTAL: 0
-        # TODO Why?  If we're concerned about trouble fetching crates, why not
-        #  just fetch them once at the time we select a dependency?
-        #  Errors fetching crates are probably rare enough that we don't see the
-        #  need to bother, but then why not just let the build fail?
-        CARGO_NET_RETRY: 10
-        # TODO What reads this?  It's not listed on
-        #  https://doc.rust-lang.org/cargo/reference/environment-variables.html
-        CI: 1
         RUST_BACKTRACE: short
-        # TODO We don't seem to run rustup, nor does it seem like we should.
-        RUSTUP_MAX_RETRIES: 10
 
     steps:
     - name: Checkout Repository
@@ -82,10 +72,7 @@ jobs:
       PGVERSION: 12
       CARGO_TARGET_DIR_NAME: target
       CARGO_INCREMENTAL: 0
-      CARGO_NET_RETRY: 10
-      CI: 1
       RUST_BACKTRACE: short
-      RUSTUP_MAX_RETRIES: 10
 
     steps:
     - name: Checkout Repository
@@ -132,10 +119,7 @@ jobs:
       PGVERSION: 13
       CARGO_TARGET_DIR_NAME: target
       CARGO_INCREMENTAL: 0
-      CARGO_NET_RETRY: 10
-      CI: 1
       RUST_BACKTRACE: short
-      RUSTUP_MAX_RETRIES: 10
 
     steps:
     - name: Checkout Repository
@@ -179,10 +163,7 @@ jobs:
       PGVERSION: 14
       CARGO_TARGET_DIR_NAME: target
       CARGO_INCREMENTAL: 0
-      CARGO_NET_RETRY: 10
-      CI: 1
       RUST_BACKTRACE: short
-      RUSTUP_MAX_RETRIES: 10
 
     steps:
     - name: Checkout Repository
@@ -224,10 +205,7 @@ jobs:
       env:
         CARGO_TARGET_DIR_NAME: target
         CARGO_INCREMENTAL: 0
-        CARGO_NET_RETRY: 10
-        CI: 1
         RUST_BACKTRACE: short
-        RUSTUP_MAX_RETRIES: 10
 
     steps:
     - name: Checkout Repository