[INFO] crate genet-abi 0.5.0 is already in cache
[INFO] checking genet-abi-0.5.0 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate genet-abi 0.5.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate genet-abi 0.5.0 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate genet-abi 0.5.0
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[INFO] tweaked toml for crates.io crate genet-abi 0.5.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ca465d0b044f9dd83bde967c8e376fad822f905f7a5e91c89403a63f090e12b4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ca465d0b044f9dd83bde967c8e376fad822f905f7a5e91c89403a63f090e12b4"`
[INFO] [stderr]     Checking genet-abi v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/attr.rs:134:22
[INFO] [stderr]     |
[INFO] [stderr] 134 |     cast: Option<Box<Cast>>,
[INFO] [stderr]     |                      ^^^^ help: use `dyn`: `dyn Cast`
[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/attr.rs:184:22
[INFO] [stderr]     |
[INFO] [stderr] 184 |     cast: Option<Box<Cast>>,
[INFO] [stderr]     |                      ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:15:32
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn clone_box(&self) -> Box<Cast>;
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:16:30
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn into_box(self) -> Box<Cast>;
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:23:32
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn clone_box(&self) -> Box<Cast> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn into_box(self) -> Box<Cast> {
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:32:20
[INFO] [stderr]    |
[INFO] [stderr] 32 | impl Clone for Box<Cast> {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:33:28
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn clone(&self) -> Box<Cast> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decoder.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |     worker: *mut Box<Worker>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Worker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decoder.rs:43:24
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn new(worker: Box<Worker>) -> WorkerBox {
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn Worker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decoder.rs:95:43
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn new_worker(&self, &Context) -> Box<Worker>;
[INFO] [stderr]    |                                           ^^^^^^ help: use `dyn`: `dyn Worker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn clone_box(&self) -> Box<Decoder>;
[INFO] [stderr]     |                                ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:101:30
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn into_box(self) -> Box<Decoder>;
[INFO] [stderr]     |                              ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:108:32
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn clone_box(&self) -> Box<Decoder> {
[INFO] [stderr]     |                                ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:112:30
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn into_box(self) -> Box<Decoder> {
[INFO] [stderr]     |                              ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:117:20
[INFO] [stderr]     |
[INFO] [stderr] 117 | impl Clone for Box<Decoder> {
[INFO] [stderr]     |                    ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:118:28
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn clone(&self) -> Box<Decoder> {
[INFO] [stderr]     |                            ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:128:23
[INFO] [stderr]     |
[INFO] [stderr] 128 |     decoder: *mut Box<Decoder>,
[INFO] [stderr]     |                       ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:135:23
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let diss: Box<Decoder> = Box::new(diss);
[INFO] [stderr]     |                       ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:12:67
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn new_worker(&self, ctx: &Context, args: &str) -> Result<Box<WriterWorker>>;
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 |     writer: *mut Box<Writer>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     id: extern "C" fn(*mut Box<Writer>) -> SafeString,
[INFO] [stderr]    |                                ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 |         *mut Box<Writer>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:34:25
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let writer: Box<Writer> = Box::new(writer);
[INFO] [stderr]    |                         ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:58:46
[INFO] [stderr]    |
[INFO] [stderr] 58 | extern "C" fn abi_writer_id(writer: *mut Box<Writer>) -> SafeString {
[INFO] [stderr]    |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:63:22
[INFO] [stderr]    |
[INFO] [stderr] 63 |     writer: *mut Box<Writer>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:85:66
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn new_worker(&self, ctx: &Context, arg: &str) -> Result<Box<ReaderWorker>>;
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:92:22
[INFO] [stderr]    |
[INFO] [stderr] 92 |     reader: *mut Box<Reader>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:93:32
[INFO] [stderr]    |
[INFO] [stderr] 93 |     id: extern "C" fn(*mut Box<Reader>) -> SafeString,
[INFO] [stderr]    |                                ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:95:18
[INFO] [stderr]    |
[INFO] [stderr] 95 |         *mut Box<Reader>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:107:25
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let reader: Box<Reader> = Box::new(reader);
[INFO] [stderr]     |                         ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:131:46
[INFO] [stderr]     |
[INFO] [stderr] 131 | extern "C" fn abi_reader_id(reader: *mut Box<Reader>) -> SafeString {
[INFO] [stderr]     |                                              ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:136:22
[INFO] [stderr]     |
[INFO] [stderr] 136 |     reader: *mut Box<Reader>,
[INFO] [stderr]     |                      ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:170:28
[INFO] [stderr]     |
[INFO] [stderr] 170 |     extern "C" fn(*mut Box<WriterWorker>, u32, *const *const Layer, u64, *mut Error) -> u8;
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:172:45
[INFO] [stderr]     |
[INFO] [stderr] 172 | type WriterEndFunc = extern "C" fn(*mut Box<WriterWorker>, *mut Error) -> u8;
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:175:22
[INFO] [stderr]     |
[INFO] [stderr] 175 |     worker: *mut Box<WriterWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:178:34
[INFO] [stderr]     |
[INFO] [stderr] 178 |     drop: extern "C" fn(*mut Box<WriterWorker>),
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:184:28
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn new(worker: Box<WriterWorker>) -> WriterWorkerBox {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:226:28
[INFO] [stderr]     |
[INFO] [stderr] 226 |     extern "C" fn(*mut Box<ReaderWorker>, *mut SafeVec<MutFixed<Layer>>, *mut Error) -> u8;
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:229:22
[INFO] [stderr]     |
[INFO] [stderr] 229 |     worker: *mut Box<ReaderWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |     drop: extern "C" fn(*mut Box<ReaderWorker>),
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:237:28
[INFO] [stderr]     |
[INFO] [stderr] 237 |     pub fn new(worker: Box<ReaderWorker>) -> ReaderWorkerBox {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:268:55
[INFO] [stderr]     |
[INFO] [stderr] 268 | extern "C" fn abi_writer_worker_drop(worker: *mut Box<WriterWorker>) {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:272:55
[INFO] [stderr]     |
[INFO] [stderr] 272 | extern "C" fn abi_reader_worker_drop(worker: *mut Box<ReaderWorker>) {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:277:22
[INFO] [stderr]     |
[INFO] [stderr] 277 |     worker: *mut Box<WriterWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:294:54
[INFO] [stderr]     |
[INFO] [stderr] 294 | extern "C" fn abi_writer_worker_end(worker: *mut Box<WriterWorker>, err: *mut Error) -> u8 {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:306:22
[INFO] [stderr]     |
[INFO] [stderr] 306 |     worker: *mut Box<ReaderWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/result.rs:4:44
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type Result<T> = result::Result<T, Box<Error>>;
[INFO] [stderr]   |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/attr.rs:360:40
[INFO] [stderr]     |
[INFO] [stderr] 360 |             unsafe { *err = Error::new(::std::error::Error::description(&*e)) }
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/attr.rs:213:21
[INFO] [stderr]     |
[INFO] [stderr] 213 |             start = mem::uninitialized();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/attr.rs:214:19
[INFO] [stderr]     |
[INFO] [stderr] 214 |             end = mem::uninitialized();
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/attr.rs:134:22
[INFO] [stderr]     |
[INFO] [stderr] 134 |     cast: Option<Box<Cast>>,
[INFO] [stderr]     |                      ^^^^ help: use `dyn`: `dyn Cast`
[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/attr.rs:184:22
[INFO] [stderr]     |
[INFO] [stderr] 184 |     cast: Option<Box<Cast>>,
[INFO] [stderr]     |                      ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:22:32
[INFO] [stderr]    |
[INFO] [stderr] 22 |         write!(f, "Error: {}", error::Error::description(self))
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         write!(f, "{}", error::Error::description(self))
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]    --> src/attr.rs:374:9
[INFO] [stderr]     |
[INFO] [stderr] 374 |         error,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/io.rs:47:49
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut out: WriterWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:15:32
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn clone_box(&self) -> Box<Cast>;
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:16:30
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn into_box(self) -> Box<Cast>;
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:23:32
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn clone_box(&self) -> Box<Cast> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn into_box(self) -> Box<Cast> {
[INFO] [stderr]    |                              ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:32:20
[INFO] [stderr]    |
[INFO] [stderr] 32 | impl Clone for Box<Cast> {
[INFO] [stderr]    |                    ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cast.rs:33:28
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn clone(&self) -> Box<Cast> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Cast`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decoder.rs:39:22
[INFO] [stderr]    |
[INFO] [stderr] 39 |     worker: *mut Box<Worker>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Worker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decoder.rs:43:24
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn new(worker: Box<Worker>) -> WorkerBox {
[INFO] [stderr]    |                        ^^^^^^ help: use `dyn`: `dyn Worker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/decoder.rs:95:43
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn new_worker(&self, &Context) -> Box<Worker>;
[INFO] [stderr]    |                                           ^^^^^^ help: use `dyn`: `dyn Worker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:100:32
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn clone_box(&self) -> Box<Decoder>;
[INFO] [stderr]     |                                ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:101:30
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn into_box(self) -> Box<Decoder>;
[INFO] [stderr]     |                              ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:108:32
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn clone_box(&self) -> Box<Decoder> {
[INFO] [stderr]     |                                ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:112:30
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn into_box(self) -> Box<Decoder> {
[INFO] [stderr]     |                              ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:117:20
[INFO] [stderr]     |
[INFO] [stderr] 117 | impl Clone for Box<Decoder> {
[INFO] [stderr]     |                    ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:118:28
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn clone(&self) -> Box<Decoder> {
[INFO] [stderr]     |                            ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:128:23
[INFO] [stderr]     |
[INFO] [stderr] 128 |     decoder: *mut Box<Decoder>,
[INFO] [stderr]     |                       ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:135:23
[INFO] [stderr]     |
[INFO] [stderr] 135 |         let diss: Box<Decoder> = Box::new(diss);
[INFO] [stderr]     |                       ^^^^^^^ help: use `dyn`: `dyn Decoder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/decoder.rs:200:57
[INFO] [stderr]     |
[INFO] [stderr] 200 |             fn new_worker(&self, _ctx: &Context) -> Box<Worker> {
[INFO] [stderr]     |                                                         ^^^^^^ help: use `dyn`: `dyn Worker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:12:67
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn new_worker(&self, ctx: &Context, args: &str) -> Result<Box<WriterWorker>>;
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 |     writer: *mut Box<Writer>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     id: extern "C" fn(*mut Box<Writer>) -> SafeString,
[INFO] [stderr]    |                                ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 |         *mut Box<Writer>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:34:25
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let writer: Box<Writer> = Box::new(writer);
[INFO] [stderr]    |                         ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:58:46
[INFO] [stderr]    |
[INFO] [stderr] 58 | extern "C" fn abi_writer_id(writer: *mut Box<Writer>) -> SafeString {
[INFO] [stderr]    |                                              ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:63:22
[INFO] [stderr]    |
[INFO] [stderr] 63 |     writer: *mut Box<Writer>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:85:66
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn new_worker(&self, ctx: &Context, arg: &str) -> Result<Box<ReaderWorker>>;
[INFO] [stderr]    |                                                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:92:22
[INFO] [stderr]    |
[INFO] [stderr] 92 |     reader: *mut Box<Reader>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:93:32
[INFO] [stderr]    |
[INFO] [stderr] 93 |     id: extern "C" fn(*mut Box<Reader>) -> SafeString,
[INFO] [stderr]    |                                ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io.rs:95:18
[INFO] [stderr]    |
[INFO] [stderr] 95 |         *mut Box<Reader>,
[INFO] [stderr]    |                  ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:107:25
[INFO] [stderr]     |
[INFO] [stderr] 107 |         let reader: Box<Reader> = Box::new(reader);
[INFO] [stderr]     |                         ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:131:46
[INFO] [stderr]     |
[INFO] [stderr] 131 | extern "C" fn abi_reader_id(reader: *mut Box<Reader>) -> SafeString {
[INFO] [stderr]     |                                              ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:136:22
[INFO] [stderr]     |
[INFO] [stderr] 136 |     reader: *mut Box<Reader>,
[INFO] [stderr]     |                      ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:170:28
[INFO] [stderr]     |
[INFO] [stderr] 170 |     extern "C" fn(*mut Box<WriterWorker>, u32, *const *const Layer, u64, *mut Error) -> u8;
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:172:45
[INFO] [stderr]     |
[INFO] [stderr] 172 | type WriterEndFunc = extern "C" fn(*mut Box<WriterWorker>, *mut Error) -> u8;
[INFO] [stderr]     |                                             ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:175:22
[INFO] [stderr]     |
[INFO] [stderr] 175 |     worker: *mut Box<WriterWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:178:34
[INFO] [stderr]     |
[INFO] [stderr] 178 |     drop: extern "C" fn(*mut Box<WriterWorker>),
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:184:28
[INFO] [stderr]     |
[INFO] [stderr] 184 |     pub fn new(worker: Box<WriterWorker>) -> WriterWorkerBox {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:226:28
[INFO] [stderr]     |
[INFO] [stderr] 226 |     extern "C" fn(*mut Box<ReaderWorker>, *mut SafeVec<MutFixed<Layer>>, *mut Error) -> u8;
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:229:22
[INFO] [stderr]     |
[INFO] [stderr] 229 |     worker: *mut Box<ReaderWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |     drop: extern "C" fn(*mut Box<ReaderWorker>),
[INFO] [stderr]     |                                  ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:237:28
[INFO] [stderr]     |
[INFO] [stderr] 237 |     pub fn new(worker: Box<ReaderWorker>) -> ReaderWorkerBox {
[INFO] [stderr]     |                            ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:268:55
[INFO] [stderr]     |
[INFO] [stderr] 268 | extern "C" fn abi_writer_worker_drop(worker: *mut Box<WriterWorker>) {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:272:55
[INFO] [stderr]     |
[INFO] [stderr] 272 | extern "C" fn abi_reader_worker_drop(worker: *mut Box<ReaderWorker>) {
[INFO] [stderr]     |                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:277:22
[INFO] [stderr]     |
[INFO] [stderr] 277 |     worker: *mut Box<WriterWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:294:54
[INFO] [stderr]     |
[INFO] [stderr] 294 | extern "C" fn abi_writer_worker_end(worker: *mut Box<WriterWorker>, err: *mut Error) -> u8 {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn WriterWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/io.rs:306:22
[INFO] [stderr]     |
[INFO] [stderr] 306 |     worker: *mut Box<ReaderWorker>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: use `dyn`: `dyn ReaderWorker`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/result.rs:4:44
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type Result<T> = result::Result<T, Box<Error>>;
[INFO] [stderr]   |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/io.rs:120:49
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let mut out: ReaderWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/attr.rs:360:40
[INFO] [stderr]     |
[INFO] [stderr] 360 |             unsafe { *err = Error::new(::std::error::Error::description(&*e)) }
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/attr.rs:213:21
[INFO] [stderr]     |
[INFO] [stderr] 213 |             start = mem::uninitialized();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/attr.rs:214:19
[INFO] [stderr]     |
[INFO] [stderr] 214 |             end = mem::uninitialized();
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:22:32
[INFO] [stderr]    |
[INFO] [stderr] 22 |         write!(f, "Error: {}", error::Error::description(self))
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:28:25
[INFO] [stderr]    |
[INFO] [stderr] 28 |         write!(f, "{}", error::Error::description(self))
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 |         assert_eq!(error::Error::description(&err), msg);
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/io.rs:47:49
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut out: WriterWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/io.rs:120:49
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let mut out: ReaderWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/decoder.rs:86:50
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 ptr::write(error, Error::new(err.description()));
[INFO] [stderr]    |                                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/attr.rs:581:40
[INFO] [stderr]     |
[INFO] [stderr] 581 |             Err(err) => assert_eq!(err.description(), "oh no!"),
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/io.rs:77:42
[INFO] [stderr]    |
[INFO] [stderr] 77 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]    |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/decoder.rs:86:50
[INFO] [stderr]    |
[INFO] [stderr] 86 |                 ptr::write(error, Error::new(err.description()));
[INFO] [stderr]    |                                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:150:42
[INFO] [stderr]     |
[INFO] [stderr] 150 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:288:42
[INFO] [stderr]     |
[INFO] [stderr] 288 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:299:42
[INFO] [stderr]     |
[INFO] [stderr] 299 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:321:42
[INFO] [stderr]     |
[INFO] [stderr] 321 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/io.rs:77:42
[INFO] [stderr]    |
[INFO] [stderr] 77 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]    |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:150:42
[INFO] [stderr]     |
[INFO] [stderr] 150 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:288:42
[INFO] [stderr]     |
[INFO] [stderr] 288 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:299:42
[INFO] [stderr]     |
[INFO] [stderr] 299 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/io.rs:321:42
[INFO] [stderr]     |
[INFO] [stderr] 321 |             unsafe { *err = Error::new(e.description()) };
[INFO] [stderr]     |                                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the type `io::WriterWorkerBox` does not permit being left uninitialized
[INFO] [stderr]    --> src/io.rs:47:49
[INFO] [stderr]     |
[INFO] [stderr] 47  |         let mut out: WriterWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 this code causes undefined behavior when executed
[INFO] [stderr]     |                                                 help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] note: function pointers must be non-null (in this struct field)
[INFO] [stderr]    --> src/io.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     write: WriterFunc,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the type `io::ReaderWorkerBox` does not permit being left uninitialized
[INFO] [stderr]    --> src/io.rs:120:49
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let mut out: ReaderWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 this code causes undefined behavior when executed
[INFO] [stderr]     |                                                 help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]     |
[INFO] [stderr] note: function pointers must be non-null (in this struct field)
[INFO] [stderr]    --> src/io.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 |     read: ReaderFunc,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the type `io::WriterWorkerBox` does not permit being left uninitialized
[INFO] [stderr]    --> src/io.rs:47:49
[INFO] [stderr]     |
[INFO] [stderr] 47  |         let mut out: WriterWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 this code causes undefined behavior when executed
[INFO] [stderr]     |                                                 help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] note: function pointers must be non-null (in this struct field)
[INFO] [stderr]    --> src/io.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 176 |     write: WriterFunc,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the type `io::ReaderWorkerBox` does not permit being left uninitialized
[INFO] [stderr]    --> src/io.rs:120:49
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let mut out: ReaderWorkerBox = unsafe { mem::uninitialized() };
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 this code causes undefined behavior when executed
[INFO] [stderr]     |                                                 help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]     |
[INFO] [stderr] note: function pointers must be non-null (in this struct field)
[INFO] [stderr]    --> src/io.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 |     read: ReaderFunc,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `"docker" "inspect" "ca465d0b044f9dd83bde967c8e376fad822f905f7a5e91c89403a63f090e12b4"`
[INFO] running `"docker" "rm" "-f" "ca465d0b044f9dd83bde967c8e376fad822f905f7a5e91c89403a63f090e12b4"`
[INFO] [stdout] ca465d0b044f9dd83bde967c8e376fad822f905f7a5e91c89403a63f090e12b4
