[INFO] fetching crate sanakirja 0.11.0...
[INFO] checking sanakirja-0.11.0 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate sanakirja 0.11.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sanakirja 0.11.0 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sanakirja 0.11.0
[INFO] finished tweaking crates.io crate sanakirja 0.11.0
[INFO] tweaked toml for crates.io crate sanakirja 0.11.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9895e1e0cb31e22854a69bc3b41590b7a0d7a59eb08f8c361ccf874a6796d1ea
[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" "9895e1e0cb31e22854a69bc3b41590b7a0d7a59eb08f8c361ccf874a6796d1ea"`
[INFO] [stderr]     Checking sanakirja v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/transaction.rs:795:36
[INFO] [stderr]     |
[INFO] [stderr] 795 |             let mut current_page = try!(self.alloc_page());
[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/value.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 |                     try!(write!(f, "UnsafeValue::Direct({})", x))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |                     try!(write!(
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 try!(write!(f, "UnsafeValue::Large({:?}, {:?})", offset, len))
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:252:9
[INFO] [stderr]     |
[INFO] [stderr] 252 |         try!(write!(f, "Value ({:?}) {{ value: [", self.len()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:256:17
[INFO] [stderr]     |
[INFO] [stderr] 256 |                 try!(write!(f, ", {:?}", std::str::from_utf8(x)))
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |                 try!(write!(f, "{:?}", std::str::from_utf8(x)));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:262:9
[INFO] [stderr]     |
[INFO] [stderr] 262 |         try!(write!(f, "] }}"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:374:24
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let mut page = try!(txn.alloc_page());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:385:37
[INFO] [stderr]     |
[INFO] [stderr] 385 |                     let next_page = try!(txn.alloc_page());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:266:9
[INFO] [stderr]     |
[INFO] [stderr] 266 |         try!(self.0.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.1.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:356:9
[INFO] [stderr]     |
[INFO] [stderr] 356 |         try!(self.0.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(self.1.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:358:9
[INFO] [stderr]     |
[INFO] [stderr] 358 |         try!(self.2.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:476:9
[INFO] [stderr]     |
[INFO] [stderr] 476 |         try!(self.0.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:477:9
[INFO] [stderr]     |
[INFO] [stderr] 477 |         try!(self.1.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:478:9
[INFO] [stderr]     |
[INFO] [stderr] 478 |         try!(self.2.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:479:9
[INFO] [stderr]     |
[INFO] [stderr] 479 |         try!(self.3.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/put.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |                         try!(self.set_rc(rng, page, rc - 1));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:202:42
[INFO] [stderr]     |
[INFO] [stderr] 202 |                         last_allocated = try!(self.split_root(
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:232:17
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 try!(self.remove_rc(rng, page_cursor.page));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |                 try!(self.set_rc(rng, page_cursor.page, rc - 1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:260:25
[INFO] [stderr]     |
[INFO] [stderr] 260 |                         try!(self.set_rc(rng, page, rc - 1));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:263:17
[INFO] [stderr]     |
[INFO] [stderr] 263 |                 try!(self.update_put::<R, K, V>(rng, &mut cursor));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1049:22
[INFO] [stderr]      |
[INFO] [stderr] 1049 |         let mut db = try!(self.alloc_page());
[INFO] [stderr]      |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1070:9
[INFO] [stderr]      |
[INFO] [stderr] 1070 |         try!(self.incr_rc(rng, db.0));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1159:25
[INFO] [stderr]      |
[INFO] [stderr] 1159 |         let mut new_a = try!(self.alloc_page());
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1161:25
[INFO] [stderr]      |
[INFO] [stderr] 1161 |         let mut new_b = try!(self.alloc_page());
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1239:28
[INFO] [stderr]      |
[INFO] [stderr] 1239 |         let mut new_root = try!(self.alloc_page());
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1258:23
[INFO] [stderr]      |
[INFO] [stderr] 1258 |             rc_root = try!(self.create_db())
[INFO] [stderr]      |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1263:13
[INFO] [stderr]      |
[INFO] [stderr] 1263 |             try!(self.del(rng, &mut rc_root, page, None));
[INFO] [stderr]      |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1265:17
[INFO] [stderr]      |
[INFO] [stderr] 1265 |                 try!(self.put(rng, &mut rc_root, page, rc));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1279:13
[INFO] [stderr]      |
[INFO] [stderr] 1279 |             try!(self.del(rng, &mut rc_root, page, None));
[INFO] [stderr]      |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1306:21
[INFO] [stderr]      |
[INFO] [stderr] 1306 |                     try!(self.remove_rc(rng, page));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1310:21
[INFO] [stderr]      |
[INFO] [stderr] 1310 |                     try!(v.drop_value(self, rng));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1312:21
[INFO] [stderr]      |
[INFO] [stderr] 1312 |                     try!(self.set_rc(rng, page, rc - 1))
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/transaction.rs:69:32
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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/skiplist.rs:640:15
[INFO] [stderr]     |
[INFO] [stderr] 640 |     buf: &mut Write,
[INFO] [stderr]     |               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/transaction.rs:593:25
[INFO] [stderr]     |
[INFO] [stderr] 593 |                 parent: std::mem::uninitialized(),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/transaction.rs:795:36
[INFO] [stderr]     |
[INFO] [stderr] 795 |             let mut current_page = try!(self.alloc_page());
[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/value.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 |                     try!(write!(f, "UnsafeValue::Direct({})", x))
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value.rs:47:21
[INFO] [stderr]    |
[INFO] [stderr] 47 |                     try!(write!(
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/value.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 try!(write!(f, "UnsafeValue::Large({:?}, {:?})", offset, len))
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:252:9
[INFO] [stderr]     |
[INFO] [stderr] 252 |         try!(write!(f, "Value ({:?}) {{ value: [", self.len()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:256:17
[INFO] [stderr]     |
[INFO] [stderr] 256 |                 try!(write!(f, ", {:?}", std::str::from_utf8(x)))
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:258:17
[INFO] [stderr]     |
[INFO] [stderr] 258 |                 try!(write!(f, "{:?}", std::str::from_utf8(x)));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:262:9
[INFO] [stderr]     |
[INFO] [stderr] 262 |         try!(write!(f, "] }}"));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:374:24
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let mut page = try!(txn.alloc_page());
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/value.rs:385:37
[INFO] [stderr]     |
[INFO] [stderr] 385 |                     let next_page = try!(txn.alloc_page());
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:266:9
[INFO] [stderr]     |
[INFO] [stderr] 266 |         try!(self.0.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |         try!(self.1.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:356:9
[INFO] [stderr]     |
[INFO] [stderr] 356 |         try!(self.0.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:357:9
[INFO] [stderr]     |
[INFO] [stderr] 357 |         try!(self.1.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:358:9
[INFO] [stderr]     |
[INFO] [stderr] 358 |         try!(self.2.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:476:9
[INFO] [stderr]     |
[INFO] [stderr] 476 |         try!(self.0.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:477:9
[INFO] [stderr]     |
[INFO] [stderr] 477 |         try!(self.1.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:478:9
[INFO] [stderr]     |
[INFO] [stderr] 478 |         try!(self.2.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:479:9
[INFO] [stderr]     |
[INFO] [stderr] 479 |         try!(self.3.drop_value(txn, rng));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/put.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |                         try!(self.set_rc(rng, page, rc - 1));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:202:42
[INFO] [stderr]     |
[INFO] [stderr] 202 |                         last_allocated = try!(self.split_root(
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:232:17
[INFO] [stderr]     |
[INFO] [stderr] 232 |                 try!(self.remove_rc(rng, page_cursor.page));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |                 try!(self.set_rc(rng, page_cursor.page, rc - 1));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:260:25
[INFO] [stderr]     |
[INFO] [stderr] 260 |                         try!(self.set_rc(rng, page, rc - 1));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/put.rs:263:17
[INFO] [stderr]     |
[INFO] [stderr] 263 |                 try!(self.update_put::<R, K, V>(rng, &mut cursor));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1049:22
[INFO] [stderr]      |
[INFO] [stderr] 1049 |         let mut db = try!(self.alloc_page());
[INFO] [stderr]      |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1070:9
[INFO] [stderr]      |
[INFO] [stderr] 1070 |         try!(self.incr_rc(rng, db.0));
[INFO] [stderr]      |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1159:25
[INFO] [stderr]      |
[INFO] [stderr] 1159 |         let mut new_a = try!(self.alloc_page());
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1161:25
[INFO] [stderr]      |
[INFO] [stderr] 1161 |         let mut new_b = try!(self.alloc_page());
[INFO] [stderr]      |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1239:28
[INFO] [stderr]      |
[INFO] [stderr] 1239 |         let mut new_root = try!(self.alloc_page());
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1258:23
[INFO] [stderr]      |
[INFO] [stderr] 1258 |             rc_root = try!(self.create_db())
[INFO] [stderr]      |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1263:13
[INFO] [stderr]      |
[INFO] [stderr] 1263 |             try!(self.del(rng, &mut rc_root, page, None));
[INFO] [stderr]      |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1265:17
[INFO] [stderr]      |
[INFO] [stderr] 1265 |                 try!(self.put(rng, &mut rc_root, page, rc));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1279:13
[INFO] [stderr]      |
[INFO] [stderr] 1279 |             try!(self.del(rng, &mut rc_root, page, None));
[INFO] [stderr]      |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1306:21
[INFO] [stderr]      |
[INFO] [stderr] 1306 |                     try!(self.remove_rc(rng, page));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1310:21
[INFO] [stderr]      |
[INFO] [stderr] 1310 |                     try!(v.drop_value(self, rng));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1312:21
[INFO] [stderr]      |
[INFO] [stderr] 1312 |                     try!(self.set_rc(rng, page, rc - 1))
[INFO] [stderr]      |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/transaction.rs:69:32
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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/skiplist.rs:580:15
[INFO] [stderr]     |
[INFO] [stderr] 580 |     buf: &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/skiplist.rs:640:15
[INFO] [stderr]     |
[INFO] [stderr] 640 |     buf: &mut Write,
[INFO] [stderr]     |               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/transaction.rs:593:25
[INFO] [stderr]     |
[INFO] [stderr] 593 |                 parent: std::mem::uninitialized(),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_skiplist`
[INFO] [stderr]    --> src/skiplist.rs:577:1
[INFO] [stderr]     |
[INFO] [stderr] 577 | / pub fn print_skiplist<T: LoadPage, K: Representable, V: Representable>(
[INFO] [stderr] 578 | |     txn: &T,
[INFO] [stderr] 579 | |     nodes: &mut HashSet<u16>,
[INFO] [stderr] 580 | |     buf: &mut Write,
[INFO] [stderr] ...   |
[INFO] [stderr] 634 | |     }
[INFO] [stderr] 635 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the type `&'txn mut transaction::MutTxn<'env, T>` does not permit being left uninitialized
[INFO] [stderr]    --> src/transaction.rs:593:25
[INFO] [stderr]     |
[INFO] [stderr] 593 |                 parent: std::mem::uninitialized(),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         this code causes undefined behavior when executed
[INFO] [stderr]     |                         help: use `MaybeUninit<T>` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]     = note: References must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: the type `&'txn mut transaction::MutTxn<'env, T>` does not permit being left uninitialized
[INFO] [stderr]    --> src/transaction.rs:593:25
[INFO] [stderr]     |
[INFO] [stderr] 593 |                 parent: std::mem::uninitialized(),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         this code causes undefined behavior when executed
[INFO] [stderr]     |                         help: use `MaybeUninit<T>` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr]     = note: References must be non-null
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `"docker" "inspect" "9895e1e0cb31e22854a69bc3b41590b7a0d7a59eb08f8c361ccf874a6796d1ea"`
[INFO] running `"docker" "rm" "-f" "9895e1e0cb31e22854a69bc3b41590b7a0d7a59eb08f8c361ccf874a6796d1ea"`
[INFO] [stdout] 9895e1e0cb31e22854a69bc3b41590b7a0d7a59eb08f8c361ccf874a6796d1ea