[INFO] crate content 0.6.0 is already in cache
[INFO] checking content-0.6.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate content 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate content 0.6.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate content 0.6.0
[INFO] finished tweaking crates.io crate content 0.6.0
[INFO] tweaked toml for crates.io crate content 0.6.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 042632f57e4223b6e64ac8749cb3c6a6e1cb6e89a8cc87a998110dabbec023e7
[INFO] running `"docker" "start" "-a" "042632f57e4223b6e64ac8749cb3c6a6e1cb6e89a8cc87a998110dabbec023e7"`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]     Checking content v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/default.rs:56:3
[INFO] [stderr]    |
[INFO] [stderr] 56 |         try!(source.read_exact(&mut bytes[..]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/default.rs:56:3
[INFO] [stderr]    |
[INFO] [stderr] 56 |         try!(source.read_exact(&mut bytes[..]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/content.rs:76:3
[INFO] [stderr]    |
[INFO] [stderr] 76 |         try!(self.hasher.write(buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/store.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 try!(t.to_content(&mut sink));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/store.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |         try!(self.backend.read().request(hash, &|read| {
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/hashmap.rs:31:14
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let hash = try!(source(&mut vec, self));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/hashmap.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let vec = try!(self.get(hash)
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:42:2
[INFO] [stderr]    |
[INFO] [stderr] 42 |     try!(fs::create_dir_all(pathbuf.to_str().unwrap()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut file = try!(File::create(&tmp_path));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let hash = try!(source(&mut file, self));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let pathbuf = try!(pathbuf_from_hash::<H>(self, &hash));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |         try!(fs::rename(tmp_path, pathbuf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let pathbuf = try!(pathbuf_from_hash::<H>(self, &hash));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/content.rs:76:3
[INFO] [stderr]    |
[INFO] [stderr] 76 |         try!(self.hasher.write(buf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/store.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 try!(t.to_content(&mut sink));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:72:18
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut file = try!(File::open(pathbuf));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/store.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |         try!(self.backend.read().request(hash, &|read| {
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 try!(sink.write(&[1]));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |         try!(source.read_exact(&mut byte));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |             1 => Ok(Some(try!(T::from_content(source)))),
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/hashmap.rs:31:14
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let hash = try!(source(&mut vec, self));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:58:15
[INFO] [stderr]    |
[INFO] [stderr] 58 |         Ok(Box::new(try!(T::from_content(source))))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:68:3
[INFO] [stderr]    |
[INFO] [stderr] 68 |         try!(source.read_exact(b));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/hashmap.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let vec = try!(self.get(hash)
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[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/test_common.rs:33:20
[INFO] [stderr]    |
[INFO] [stderr] 33 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:42:2
[INFO] [stderr]    |
[INFO] [stderr] 42 |     try!(fs::create_dir_all(pathbuf.to_str().unwrap()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:33:32
[INFO] [stderr]    |
[INFO] [stderr] 33 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:40:10
[INFO] [stderr]    |
[INFO] [stderr] 40 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:40:18
[INFO] [stderr]    |
[INFO] [stderr] 40 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut file = try!(File::create(&tmp_path));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/test_common.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |         (&pb as &Backend<H>).request(hash, read)
[INFO] [stderr]    |                  ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:30:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |     read: &'a mut Read,
[INFO] [stderr]    |                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:31:39
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:61:14
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let hash = try!(source(&mut file, self));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |         read: &'a mut Read,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 |         backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     write: &'a mut Write,
[INFO] [stderr]    |                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |         let pathbuf = try!(pathbuf_from_hash::<H>(self, &hash));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         write: &'a 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/content.rs:61:20
[INFO] [stderr]    |
[INFO] [stderr] 61 |         backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |         try!(fs::rename(tmp_path, pathbuf));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |     backend: Arc<RwLock<Box<Backend<H>>>>,
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:38:39
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new_with_backend(backend: Box<Backend<H>>) -> Self {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let pathbuf = try!(pathbuf_from_hash::<H>(self, &hash));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:20
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/backend/pathbuf.rs:72:18
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let mut file = try!(File::open(pathbuf));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 try!(sink.write(&[1]));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:20
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:10
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:18
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |         try!(source.read_exact(&mut byte));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |             1 => Ok(Some(try!(T::from_content(source)))),
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:32
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:58:15
[INFO] [stderr]    |
[INFO] [stderr] 58 |         Ok(Box::new(try!(T::from_content(source))))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/std_impls.rs:68:3
[INFO] [stderr]    |
[INFO] [stderr] 68 |         try!(source.read_exact(b));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:30:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |     read: &'a mut Read,
[INFO] [stderr]    |                   ^^^^ help: use `dyn`: `dyn Read`
[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/content.rs:31:39
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |         read: &'a mut Read,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 |         backend: RwLockReadGuard<'a, Box<Backend<H>>>,
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     write: &'a 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/content.rs:54:23
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/content.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         write: &'a 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/content.rs:61:20
[INFO] [stderr]    |
[INFO] [stderr] 61 |         backend: &'a mut Backend<H>,
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |     backend: Arc<RwLock<Box<Backend<H>>>>,
[INFO] [stderr]    |                             ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/store.rs:38:39
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn new_with_backend(backend: Box<Backend<H>>) -> Self {
[INFO] [stderr]    |                                          ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:20
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:28:32
[INFO] [stderr]    |
[INFO] [stderr] 28 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:10
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hashmap.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:20
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:10
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pathbuf.rs:69:18
[INFO] [stderr]    |
[INFO] [stderr] 69 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:26:32
[INFO] [stderr]    |
[INFO] [stderr] 26 |         source: &Fn(&mut Write, &mut Backend<H>) -> Result<H::Digest>,
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: use `dyn`: `dyn Backend<H>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Read) -> Result<()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/mod.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         read: &Fn(&mut Read) -> Result<()>,
[INFO] [stderr]    |                        ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/default.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |         unsafe { bytes = mem::uninitialized() }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/default.rs:55:20
[INFO] [stderr]    |
[INFO] [stderr] 55 |         unsafe { bytes = mem::uninitialized() }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/default.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |         unsafe { bytes = mem::uninitialized() }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/default.rs:55:20
[INFO] [stderr]    |
[INFO] [stderr] 55 |         unsafe { bytes = mem::uninitialized() }
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 45 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 51 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `"docker" "inspect" "042632f57e4223b6e64ac8749cb3c6a6e1cb6e89a8cc87a998110dabbec023e7"`
[INFO] running `"docker" "rm" "-f" "042632f57e4223b6e64ac8749cb3c6a6e1cb6e89a8cc87a998110dabbec023e7"`
[INFO] [stdout] 042632f57e4223b6e64ac8749cb3c6a6e1cb6e89a8cc87a998110dabbec023e7