[INFO] fetching crate hammersbald 2.2.0...
[INFO] checking hammersbald-2.2.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate hammersbald 2.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate hammersbald 2.2.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate hammersbald 2.2.0
[INFO] finished tweaking crates.io crate hammersbald 2.2.0
[INFO] tweaked toml for crates.io crate hammersbald 2.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9277c0e7a7515df8d6e6e1b78ed0e6737c3e9434c8b357f433649e49be5d8f1a
[INFO] running `"docker" "start" "-a" "9277c0e7a7515df8d6e6e1b78ed0e6737c3e9434c8b357f433649e49be5d8f1a"`
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking bitcoin_hashes v0.7.1
[INFO] [stderr]     Checking hammersbald v2.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pagedfile.rs:59:15
[INFO] [stderr]    |
[INFO] [stderr] 59 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pagedfile.rs:66:27
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn new (file: Box<PagedFile>, pos: PRef) -> PagedFileAppender {
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pagedfile.rs:165:18
[INFO] [stderr]     |
[INFO] [stderr] 165 |     file: &'file PagedFile
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pagedfile.rs:171:30
[INFO] [stderr]     |
[INFO] [stderr] 171 |     pub fn new (file: &'file PagedFile, pref: PRef) -> PagedFileIterator {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logfile.rs:29:15
[INFO] [stderr]    |
[INFO] [stderr] 29 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logfile.rs:35:24
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new(rw: Box<PagedFile>) -> LogFile {
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logfile.rs:55:53
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn log_page(&mut self, pref: PRef, source: &PagedFile) -> Result<(), HammersbaldError>{
[INFO] [stderr]    |                                                     ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tablefile.rs:36:15
[INFO] [stderr]    |
[INFO] [stderr] 36 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tablefile.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn new (file: Box<PagedFile>) -> Result<TableFile, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cachedfile.rs:31:15
[INFO] [stderr]    |
[INFO] [stderr] 31 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cachedfile.rs:37:27
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new (file: Box<PagedFile>, pages: usize) -> Result<CachedFile, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/asyncfile.rs:36:21
[INFO] [stderr]    |
[INFO] [stderr] 36 |     file: Mutex<Box<PagedFile + Send + Sync>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PagedFile + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/asyncfile.rs:44:27
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn new (file: Box<PagedFile + Send + Sync>) -> Result<AsyncFileInner, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PagedFile + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/asyncfile.rs:52:27
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn new (file: Box<PagedFile + Send + Sync>) -> Result<AsyncFile, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PagedFile + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/format.rs:43:43
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]    |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/format.rs:66:43
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]    |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/format.rs:109:43
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/format.rs:137:43
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/format.rs:181:42
[INFO] [stderr]     |
[INFO] [stderr] 181 |     pub fn serialize (&self, write: &mut Write) {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/datafile.rs:36:26
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new(file: Box<PagedFile>) -> Result<DataFile, HammersbaldError> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/transient.rs:57:100
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn new_db (_name: &str, cached_data_pages: usize, bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/persistent.rs:39:98
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new_db(name: &str, cached_data_pages: usize, bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:62:32
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:84:19
[INFO] [stderr]    |
[INFO] [stderr] 84 |         (self as &fmt::Display).fmt(f)
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:42:98
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn persistent(name: &str, cached_data_pages: usize, bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:47:59
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn transient(bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pagedfile.rs:59:15
[INFO] [stderr]    |
[INFO] [stderr] 59 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pagedfile.rs:66:27
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn new (file: Box<PagedFile>, pos: PRef) -> PagedFileAppender {
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pagedfile.rs:165:18
[INFO] [stderr]     |
[INFO] [stderr] 165 |     file: &'file PagedFile
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pagedfile.rs:171:30
[INFO] [stderr]     |
[INFO] [stderr] 171 |     pub fn new (file: &'file PagedFile, pref: PRef) -> PagedFileIterator {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logfile.rs:29:15
[INFO] [stderr]    |
[INFO] [stderr] 29 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logfile.rs:35:24
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn new(rw: Box<PagedFile>) -> LogFile {
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logfile.rs:55:53
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn log_page(&mut self, pref: PRef, source: &PagedFile) -> Result<(), HammersbaldError>{
[INFO] [stderr]    |                                                     ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tablefile.rs:36:15
[INFO] [stderr]    |
[INFO] [stderr] 36 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/tablefile.rs:41:27
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn new (file: Box<PagedFile>) -> Result<TableFile, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cachedfile.rs:31:15
[INFO] [stderr]    |
[INFO] [stderr] 31 |     file: Box<PagedFile>,
[INFO] [stderr]    |               ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cachedfile.rs:37:27
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new (file: Box<PagedFile>, pages: usize) -> Result<CachedFile, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/asyncfile.rs:36:21
[INFO] [stderr]    |
[INFO] [stderr] 36 |     file: Mutex<Box<PagedFile + Send + Sync>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PagedFile + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/asyncfile.rs:44:27
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn new (file: Box<PagedFile + Send + Sync>) -> Result<AsyncFileInner, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PagedFile + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/asyncfile.rs:52:27
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn new (file: Box<PagedFile + Send + Sync>) -> Result<AsyncFile, HammersbaldError> {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn PagedFile + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/format.rs:43:43
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]    |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/format.rs:66:43
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]    |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/format.rs:109:43
[INFO] [stderr]     |
[INFO] [stderr] 109 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/format.rs:137:43
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn serialize (&self, result: &mut Write) {
[INFO] [stderr]     |                                           ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/format.rs:181:42
[INFO] [stderr]     |
[INFO] [stderr] 181 |     pub fn serialize (&self, write: &mut Write) {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/datafile.rs:36:26
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn new(file: Box<PagedFile>) -> Result<DataFile, HammersbaldError> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn PagedFile`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/transient.rs:57:100
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn new_db (_name: &str, cached_data_pages: usize, bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                                                                    ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/persistent.rs:39:98
[INFO] [stderr]    |
[INFO] [stderr] 39 |     pub fn new_db(name: &str, cached_data_pages: usize, bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:62:32
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:84:19
[INFO] [stderr]    |
[INFO] [stderr] 84 |         (self as &fmt::Display).fmt(f)
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:42:98
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn persistent(name: &str, cached_data_pages: usize, bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/api.rs:47:59
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub fn transient(bucket_fill_target: usize) -> Result<Box<HammersbaldAPI>, HammersbaldError> {
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^ help: use `dyn`: `dyn HammersbaldAPI`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.89s
[INFO] running `"docker" "inspect" "9277c0e7a7515df8d6e6e1b78ed0e6737c3e9434c8b357f433649e49be5d8f1a"`
[INFO] running `"docker" "rm" "-f" "9277c0e7a7515df8d6e6e1b78ed0e6737c3e9434c8b357f433649e49be5d8f1a"`
[INFO] [stdout] 9277c0e7a7515df8d6e6e1b78ed0e6737c3e9434c8b357f433649e49be5d8f1a