+# Some crates require pinning to meet our MSRV even for our downstream users,
+# which we do here.
+# Further crates which appear only as dev-dependencies are pinned further down.
+function PIN_RELEASE_DEPS {
+ # Tokio MSRV on versions 1.17 through 1.26 is rustc 1.49. Above 1.26 MSRV is 1.56.
+ [ "$RUSTC_MINOR_VERSION" -lt 49 ] && cargo update -p tokio --precise "1.14.1" --verbose
+ [[ "$RUSTC_MINOR_VERSION" -gt 48 && "$RUSTC_MINOR_VERSION" -lt 56 ]] && cargo update -p tokio --precise "1.25.1" --verbose
+
+ # Sadly the log crate is always a dependency of tokio until 1.20, and has no reasonable MSRV guarantees
+ [ "$RUSTC_MINOR_VERSION" -lt 49 ] && cargo update -p log --precise "0.4.18" --verbose
+
+ # The serde_json crate switched to Rust edition 2021 starting with v1.0.101, i.e., has MSRV of 1.56
+ [ "$RUSTC_MINOR_VERSION" -lt 56 ] && cargo update -p serde_json --precise "1.0.100" --verbose
+
+ return 0 # Don't fail the script if our rustc is higher than the last check
+}
+
+PIN_RELEASE_DEPS # pin the release dependencies in our main workspace
+
+# The addr2line v0.20 crate (a dependency of `backtrace` starting with 0.3.68) relies on 1.55+
+[ "$RUSTC_MINOR_VERSION" -lt 55 ] && cargo update -p backtrace --precise "0.3.67" --verbose
+
+# The quote crate switched to Rust edition 2021 starting with v1.0.31, i.e., has MSRV of 1.56
+[ "$RUSTC_MINOR_VERSION" -lt 56 ] && cargo update -p quote --precise "1.0.30" --verbose
+
+# The proc-macro2 crate switched to Rust edition 2021 starting with v1.0.66, i.e., has MSRV of 1.56
+[ "$RUSTC_MINOR_VERSION" -lt 56 ] && cargo update -p proc-macro2 --precise "1.0.65" --verbose
+
+# The memchr crate switched to an MSRV of 1.60 starting with v2.6.0
+[ "$RUSTC_MINOR_VERSION" -lt 60 ] && cargo update -p memchr --precise "2.5.0" --verbose
+