[INFO] fetching crate sled-web 0.3.0...
[INFO] checking sled-web-0.3.0 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate sled-web 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate sled-web 0.3.0
[INFO] finished tweaking crates.io crate sled-web 0.3.0
[INFO] tweaked toml for crates.io crate sled-web 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sled-web 0.3.0 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 92 packages to latest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.31)
[INFO] [stderr]       Adding http v0.1.21 (available: v1.4.0)
[INFO] [stderr]       Adding hyper v0.12.36 (available: v1.8.1)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8106c5754077d3fcb158539a3aa078496e6828c60cf73a9e829407f80dcb9239
[INFO] running `Command { std: "docker" "start" "-a" "8106c5754077d3fcb158539a3aa078496e6828c60cf73a9e829407f80dcb9239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8106c5754077d3fcb158539a3aa078496e6828c60cf73a9e829407f80dcb9239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8106c5754077d3fcb158539a3aa078496e6828c60cf73a9e829407f80dcb9239", kill_on_drop: false }`
[INFO] [stdout] 8106c5754077d3fcb158539a3aa078496e6828c60cf73a9e829407f80dcb9239
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0aca2214082d92173783c158741fec3ec9172589f3ca171a08c1f1212bdf14d
[INFO] running `Command { std: "docker" "start" "-a" "b0aca2214082d92173783c158741fec3ec9172589f3ca171a08c1f1212bdf14d", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking pagetable v0.0.3
[INFO] [stderr]     Checking sled_sync v0.2.2
[INFO] [stderr]     Checking historian v3.0.11
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking hyper v0.12.36
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking pagecache v0.6.0
[INFO] [stderr]     Checking sled v0.15.21
[INFO] [stderr]     Checking sled-search v0.2.0
[INFO] [stderr]     Checking sled-web v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/response.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn into_response(self, Arc<sled::Tree>) -> Response<Body>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Arc<sled::Tree>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/response.rs:17:28
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn into_response(self, Arc<sled::Tree>) -> Response<Body>;
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Arc<sled::Tree>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2018/trait-fn-parameters.html>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:211:32
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client.rs:211:32
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/response.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ResponseFuture = Box<Future<Item = Response<Body>, Error = hyper::Error> + Send>;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ResponseFuture = Box<dyn Future<Item = Response<Body>, Error = hyper::Error> + Send>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:307:28
[INFO] [stdout]     |
[INFO] [stdout] 307 | fn err_to_json_bytes(err: &StdError) -> Vec<u8> {
[INFO] [stdout]     |                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 307 | fn err_to_json_bytes(err: &dyn StdError) -> Vec<u8> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:317:26
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn db_err_response(err: &StdError) -> Response<Body> {
[INFO] [stdout]     |                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn db_err_response(err: &dyn StdError) -> Response<Body> {
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:328:39
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn deserialization_err_response(err: &StdError) -> Response<Body> {
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn deserialization_err_response(err: &dyn StdError) -> Response<Body> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/response.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ResponseFuture = Box<Future<Item = Response<Body>, Error = hyper::Error> + Send>;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type ResponseFuture = Box<dyn Future<Item = Response<Body>, Error = hyper::Error> + Send>;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:307:28
[INFO] [stdout]     |
[INFO] [stdout] 307 | fn err_to_json_bytes(err: &StdError) -> Vec<u8> {
[INFO] [stdout]     |                            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 307 | fn err_to_json_bytes(err: &dyn StdError) -> Vec<u8> {
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:317:26
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn db_err_response(err: &StdError) -> Response<Body> {
[INFO] [stdout]     |                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn db_err_response(err: &dyn StdError) -> Response<Body> {
[INFO] [stdout]     |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:328:39
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn deserialization_err_response(err: &StdError) -> Response<Body> {
[INFO] [stdout]     |                                       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 328 | fn deserialization_err_response(err: &dyn StdError) -> Response<Body> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/client.rs:206:42
[INFO] [stdout]     |
[INFO] [stdout] 206 |             Error::Hyper(ref err) => err.description(),
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/client.rs:207:46
[INFO] [stdout]     |
[INFO] [stdout] 207 |             Error::SerdeJson(ref err) => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/client.rs:222:30
[INFO] [stdout]     |
[INFO] [stdout] 222 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/client.rs:206:42
[INFO] [stdout]     |
[INFO] [stdout] 206 |             Error::Hyper(ref err) => err.description(),
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/client.rs:207:46
[INFO] [stdout]     |
[INFO] [stdout] 207 |             Error::SerdeJson(ref err) => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/client.rs:222:30
[INFO] [stdout]     |
[INFO] [stdout] 222 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:163:70
[INFO] [stdout]     |
[INFO] [stdout] 163 |                     Err(err) => return Some(Err(Box::new(err) as Box<StdError + Send + Sync>)),
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 163 |                     Err(err) => return Some(Err(Box::new(err) as Box<dyn StdError + Send + Sync>)),
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/response.rs:262:30
[INFO] [stdout]     |
[INFO] [stdout] 262 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/response.rs:163:70
[INFO] [stdout]     |
[INFO] [stdout] 163 |                     Err(err) => return Some(Err(Box::new(err) as Box<StdError + Send + Sync>)),
[INFO] [stdout]     |                                                                      ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 163 |                     Err(err) => return Some(Err(Box::new(err) as Box<dyn StdError + Send + Sync>)),
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/response.rs:262:30
[INFO] [stdout]     |
[INFO] [stdout] 262 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: pagecache v0.6.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 17`
[INFO] running `Command { std: "docker" "inspect" "b0aca2214082d92173783c158741fec3ec9172589f3ca171a08c1f1212bdf14d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0aca2214082d92173783c158741fec3ec9172589f3ca171a08c1f1212bdf14d", kill_on_drop: false }`
[INFO] [stdout] b0aca2214082d92173783c158741fec3ec9172589f3ca171a08c1f1212bdf14d
