commit 19b8388950e5f97703ed21c9e4cd47b303e3db81
parent 87e08b9e50083d5b4aa3219ae5dcb67213427486
Author: BlackDex <black.dex@gmail.com>
Date: Fri, 19 Nov 2021 17:50:16 +0100
Upd Dockerfiles, crates. Fixed rust 2018 idioms
- Updated crates
- Fixed Dockerfiles to build using the rust stable version
- Enabled warnings for rust 2018 idioms and fixed them.
Diffstat:
23 files changed, 84 insertions(+), 34 deletions(-)
diff --git a/docker/Dockerfile.j2 b/docker/Dockerfile.j2
@@ -241,7 +241,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
{% if package_arch_target is defined %}
COPY --from=build /app/target/{{ package_arch_target }}/release/vaultwarden .
@@ -255,5 +254,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/amd64/Dockerfile b/docker/amd64/Dockerfile
@@ -115,7 +115,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/release/vaultwarden .
@@ -125,5 +124,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/amd64/Dockerfile.alpine b/docker/amd64/Dockerfile.alpine
@@ -107,7 +107,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/x86_64-unknown-linux-musl/release/vaultwarden .
@@ -117,5 +116,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/amd64/Dockerfile.buildx b/docker/amd64/Dockerfile.buildx
@@ -115,7 +115,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/release/vaultwarden .
@@ -125,5 +124,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/amd64/Dockerfile.buildx.alpine b/docker/amd64/Dockerfile.buildx.alpine
@@ -107,7 +107,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/x86_64-unknown-linux-musl/release/vaultwarden .
@@ -117,5 +116,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/arm64/Dockerfile b/docker/arm64/Dockerfile
@@ -139,7 +139,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/aarch64-unknown-linux-gnu/release/vaultwarden .
@@ -149,5 +148,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/arm64/Dockerfile.alpine b/docker/arm64/Dockerfile.alpine
@@ -111,7 +111,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/aarch64-unknown-linux-musl/release/vaultwarden .
@@ -121,5 +120,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/arm64/Dockerfile.buildx b/docker/arm64/Dockerfile.buildx
@@ -139,7 +139,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/aarch64-unknown-linux-gnu/release/vaultwarden .
@@ -149,5 +148,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/arm64/Dockerfile.buildx.alpine b/docker/arm64/Dockerfile.buildx.alpine
@@ -111,7 +111,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/aarch64-unknown-linux-musl/release/vaultwarden .
@@ -121,5 +120,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv6/Dockerfile b/docker/armv6/Dockerfile
@@ -139,7 +139,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/arm-unknown-linux-gnueabi/release/vaultwarden .
@@ -149,5 +148,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv6/Dockerfile.alpine b/docker/armv6/Dockerfile.alpine
@@ -111,7 +111,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/arm-unknown-linux-musleabi/release/vaultwarden .
@@ -121,5 +120,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv6/Dockerfile.buildx b/docker/armv6/Dockerfile.buildx
@@ -139,7 +139,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/arm-unknown-linux-gnueabi/release/vaultwarden .
@@ -149,5 +148,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv6/Dockerfile.buildx.alpine b/docker/armv6/Dockerfile.buildx.alpine
@@ -111,7 +111,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/arm-unknown-linux-musleabi/release/vaultwarden .
@@ -121,5 +120,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv7/Dockerfile b/docker/armv7/Dockerfile
@@ -139,7 +139,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/armv7-unknown-linux-gnueabihf/release/vaultwarden .
@@ -149,5 +148,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv7/Dockerfile.alpine b/docker/armv7/Dockerfile.alpine
@@ -114,7 +114,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/armv7-unknown-linux-musleabihf/release/vaultwarden .
@@ -124,5 +123,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv7/Dockerfile.buildx b/docker/armv7/Dockerfile.buildx
@@ -139,7 +139,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/armv7-unknown-linux-gnueabihf/release/vaultwarden .
@@ -149,5 +148,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/docker/armv7/Dockerfile.buildx.alpine b/docker/armv7/Dockerfile.buildx.alpine
@@ -114,7 +114,6 @@ EXPOSE 3012
# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
WORKDIR /
-COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/armv7-unknown-linux-musleabihf/release/vaultwarden .
@@ -124,5 +123,9 @@ COPY docker/start.sh /start.sh
HEALTHCHECK --interval=60s --timeout=10s CMD ["/healthcheck.sh"]
# Configures the startup!
+# We should be able to remove the dumb-init now with Rocket 0.5
+# But the balenalib images have some issues with there entry.sh
+# See: https://github.com/balena-io-library/base-images/issues/735
+# Lets keep using dumb-init for now, since that is working fine.
ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["/start.sh"]
diff --git a/src/api/admin.rs b/src/api/admin.rs
@@ -141,7 +141,7 @@ fn admin_url(referer: Referer) -> String {
}
#[get("/", rank = 2)]
-fn admin_login(flash: Option<FlashMessage>) -> ApiResult<Html<String>> {
+fn admin_login(flash: Option<FlashMessage<'_>>) -> ApiResult<Html<String>> {
// If there is an error, show it
let msg = flash.map(|msg| format!("{}: {}", msg.kind(), msg.message()));
let json = json!({
@@ -164,7 +164,7 @@ struct LoginForm {
#[post("/", data = "<data>")]
fn post_admin_login(
data: Form<LoginForm>,
- cookies: &CookieJar,
+ cookies: &CookieJar<'_>,
ip: ClientIp,
referer: Referer,
) -> Result<Redirect, Flash<Redirect>> {
@@ -300,7 +300,7 @@ fn test_smtp(data: Json<InviteData>, _token: AdminToken) -> EmptyResult {
}
#[get("/logout")]
-fn logout(cookies: &CookieJar, referer: Referer) -> Redirect {
+fn logout(cookies: &CookieJar<'_>, referer: Referer) -> Redirect {
cookies.remove(Cookie::named(COOKIE_NAME));
Redirect::to(admin_url(referer))
}
diff --git a/src/auth.rs b/src/auth.rs
@@ -38,7 +38,7 @@ static PRIVATE_RSA_KEY: Lazy<EncodingKey> = Lazy::new(|| {
static PUBLIC_RSA_KEY_VEC: Lazy<Vec<u8>> = Lazy::new(|| {
read_file(&CONFIG.public_rsa_key()).unwrap_or_else(|e| panic!("Error loading public RSA Key.\n{}", e))
});
-static PUBLIC_RSA_KEY: Lazy<DecodingKey> = Lazy::new(|| {
+static PUBLIC_RSA_KEY: Lazy<DecodingKey<'_>> = Lazy::new(|| {
DecodingKey::from_rsa_pem(&PUBLIC_RSA_KEY_VEC).unwrap_or_else(|e| panic!("Error decoding public RSA Key.\n{}", e))
});
@@ -411,7 +411,7 @@ pub struct OrgHeaders {
// org_id is usually the second path param ("/organizations/<org_id>"),
// but there are cases where it is a query value.
// First check the path, if this is not a valid uuid, try the query values.
-fn get_org_id(request: &Request) -> Option<String> {
+fn get_org_id(request: &Request<'_>) -> Option<String> {
if let Some(Ok(org_id)) = request.param::<String>(1) {
if uuid::Uuid::parse_str(&org_id).is_ok() {
return Some(org_id);
@@ -512,7 +512,7 @@ impl From<AdminHeaders> for Headers {
// col_id is usually the fourth path param ("/organizations/<org_id>/collections/<col_id>"),
// but there could be cases where it is a query value.
// First check the path, if this is not a valid uuid, try the query values.
-fn get_col_id(request: &Request) -> Option<String> {
+fn get_col_id(request: &Request<'_>) -> Option<String> {
if let Some(Ok(col_id)) = request.param::<String>(3) {
if uuid::Uuid::parse_str(&col_id).is_ok() {
return Some(col_id);
diff --git a/src/config.rs b/src/config.rs
@@ -1011,7 +1011,7 @@ where
fn case_helper<'reg, 'rc>(
h: &Helper<'reg, 'rc>,
- r: &'reg Handlebars,
+ r: &'reg Handlebars<'_>,
ctx: &'rc Context,
rc: &mut RenderContext<'reg, 'rc>,
out: &mut dyn Output,
@@ -1028,7 +1028,7 @@ fn case_helper<'reg, 'rc>(
fn js_escape_helper<'reg, 'rc>(
h: &Helper<'reg, 'rc>,
- _r: &'reg Handlebars,
+ _r: &'reg Handlebars<'_>,
_ctx: &'rc Context,
_rc: &mut RenderContext<'reg, 'rc>,
out: &mut dyn Output,
diff --git a/src/error.rs b/src/error.rs
@@ -24,7 +24,7 @@ macro_rules! make_error {
}
}
impl std::fmt::Display for Error {
- fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match &self.error {$(
ErrorKind::$name(e) => f.write_str(&$usr_msg_fun(e, &self.message)),
)+}
@@ -93,7 +93,7 @@ make_error! {
}
impl std::fmt::Debug for Error {
- fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self.source() {
Some(e) => write!(f, "{}.\n[CAUSE] {:#?}", self.message, e),
None => match self.error {
@@ -196,7 +196,7 @@ use rocket::request::Request;
use rocket::response::{self, Responder, Response};
impl<'r> Responder<'r, 'static> for Error {
- fn respond_to(self, _: &Request) -> response::Result<'static> {
+ fn respond_to(self, _: &Request<'_>) -> response::Result<'static> {
match self.error {
ErrorKind::Empty(_) => {} // Don't print the error in this situation
ErrorKind::Simple(_) => {} // Don't print the error in this situation
diff --git a/src/main.rs b/src/main.rs
@@ -1,5 +1,5 @@
#![forbid(unsafe_code)]
-// #![warn(rust_2018_idioms)]
+#![warn(rust_2018_idioms)]
#![warn(rust_2021_compatibility)]
#![cfg_attr(feature = "unstable", feature(ip))]
// The recursion_limit is mainly triggered by the json!() macro.
@@ -8,7 +8,6 @@
// If you go above 128 it will cause rust-analyzer to fail,
#![recursion_limit = "87"]
-extern crate openssl;
#[macro_use]
extern crate rocket;
#[macro_use]
diff --git a/src/util.rs b/src/util.rs
@@ -52,7 +52,7 @@ impl Fairing for AppHeaders {
pub struct Cors();
impl Cors {
- fn get_header(headers: &HeaderMap, name: &str) -> String {
+ fn get_header(headers: &HeaderMap<'_>, name: &str) -> String {
match headers.get_one(name) {
Some(h) => h.to_string(),
_ => "".to_string(),
@@ -61,7 +61,7 @@ impl Cors {
// Check a request's `Origin` header against the list of allowed origins.
// If a match exists, return it. Otherwise, return None.
- fn get_allowed_origin(headers: &HeaderMap) -> Option<String> {
+ fn get_allowed_origin(headers: &HeaderMap<'_>) -> Option<String> {
let origin = Cors::get_header(headers, "Origin");
let domain_origin = CONFIG.domain_origin();
let safari_extension_origin = "file://";
@@ -157,7 +157,7 @@ impl<'r, R: 'r + Responder<'r, 'static> + Send> Responder<'r, 'static> for Cache
pub struct SafeString(String);
impl std::fmt::Display for SafeString {
- fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.0.fmt(f)
}
}
@@ -500,7 +500,7 @@ struct UpCaseVisitor;
impl<'de> Visitor<'de> for UpCaseVisitor {
type Value = Value;
- fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+ fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
formatter.write_str("an object or an array")
}
