[INFO] fetching crate grin_core 2.0.0...
[INFO] checking grin_core-2.0.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate grin_core 2.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate grin_core 2.0.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate grin_core 2.0.0
[INFO] finished tweaking crates.io crate grin_core 2.0.0
[INFO] tweaked toml for crates.io crate grin_core 2.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 929aba1851de9051a5256228409dfb3ca0d65a6b7d7e26d4b869c59981e7c41f
[INFO] running `"docker" "start" "-a" "929aba1851de9051a5256228409dfb3ca0d65a6b7d7e26d4b869c59981e7c41f"`
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking grin_util v2.0.0
[INFO] [stderr]     Checking grin_keychain v2.0.0
[INFO] [stderr]     Checking grin_core v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:78:9
[INFO] [stderr]     |
[INFO] [stderr] 78  |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/block.rs:294:35
[INFO] [stderr]     |
[INFO] [stderr] 294 |         let (height, timestamp) = ser_multiread!(reader, read_u64, read_i64);
[INFO] [stderr]     |                                   ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:78:9
[INFO] [stderr]     |
[INFO] [stderr] 78  |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/block.rs:301:50
[INFO] [stderr]     |
[INFO] [stderr] 301 |         let (output_mmr_size, kernel_mmr_size) = ser_multiread!(reader, read_u64, read_u64);
[INFO] [stderr]     |                                                  ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/block.rs:339:9
[INFO] [stderr]     |
[INFO] [stderr] 339 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 340 | |             writer,
[INFO] [stderr] 341 | |             [write_u64, self.height],
[INFO] [stderr] 342 | |             [write_i64, self.timestamp.timestamp()],
[INFO] [stderr] ...   |
[INFO] [stderr] 350 | |             [write_u64, self.kernel_mmr_size]
[INFO] [stderr] 351 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> src/macros.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/core/compact_block.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             ser_multiread!(reader, read_u64, read_u64, read_u64);
[INFO] [stderr]    |             ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/compact_block.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 105 | |             writer,
[INFO] [stderr] 106 | |             [write_u64, self.out_full.len() as u64],
[INFO] [stderr] 107 | |             [write_u64, self.kern_full.len() as u64],
[INFO] [stderr] 108 | |             [write_u64, self.kern_ids.len() as u64]
[INFO] [stderr] 109 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |     $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/transaction.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         ser_multiwrite!(writer, [write_u64, self.fee], [write_u64, self.lock_height]);
[INFO] [stderr]     |         ------------------------------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/transaction.rs:419:9
[INFO] [stderr]     |
[INFO] [stderr] 419 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 420 | |             writer,
[INFO] [stderr] 421 | |             [write_u64, self.inputs.len() as u64],
[INFO] [stderr] 422 | |             [write_u64, self.outputs.len() as u64],
[INFO] [stderr] 423 | |             [write_u64, self.kernels.len() as u64]
[INFO] [stderr] 424 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:78:9
[INFO] [stderr]     |
[INFO] [stderr] 78  |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/transaction.rs:439:13
[INFO] [stderr]     |
[INFO] [stderr] 439 |             ser_multiread!(reader, read_u64, read_u64, read_u64);
[INFO] [stderr]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/pow/types.rs:271:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 272 | |             writer,
[INFO] [stderr] 273 | |             [write_u64, self.total_difficulty.to_num()],
[INFO] [stderr] 274 | |             [write_u32, self.secondary_scaling]
[INFO] [stderr] 275 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/block.rs:124:23
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn read(reader: &mut Reader) -> Result<HeaderEntry, ser::Error> {
[INFO] [stderr]     |                          ^^^^^^ help: use `dyn`: `dyn Reader`
[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/core/pmmr/backend.rs:56:33
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn leaf_pos_iter(&self) -> Box<Iterator<Item = u64> + '_>;
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64> + '_`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core/pmmr/rewindable_pmmr.rs:53:31
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn backend(&'a self) -> &Backend<T> {
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Backend<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/transaction.rs:341:23
[INFO] [stderr]     |
[INFO] [stderr] 341 |     fn read(reader: &mut Reader) -> Result<TxKernelEntry, ser::Error> {
[INFO] [stderr]     |                          ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:78:9
[INFO] [stderr]     |
[INFO] [stderr] 78  |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/block.rs:294:35
[INFO] [stderr]     |
[INFO] [stderr] 294 |         let (height, timestamp) = ser_multiread!(reader, read_u64, read_i64);
[INFO] [stderr]     |                                   ------------------------------------------ in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:78:9
[INFO] [stderr]     |
[INFO] [stderr] 78  |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/block.rs:301:50
[INFO] [stderr]     |
[INFO] [stderr] 301 |         let (output_mmr_size, kernel_mmr_size) = ser_multiread!(reader, read_u64, read_u64);
[INFO] [stderr]     |                                                  ------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/block.rs:339:9
[INFO] [stderr]     |
[INFO] [stderr] 339 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 340 | |             writer,
[INFO] [stderr] 341 | |             [write_u64, self.height],
[INFO] [stderr] 342 | |             [write_i64, self.timestamp.timestamp()],
[INFO] [stderr] ...   |
[INFO] [stderr] 350 | |             [write_u64, self.kernel_mmr_size]
[INFO] [stderr] 351 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> src/macros.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/core/compact_block.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             ser_multiread!(reader, read_u64, read_u64, read_u64);
[INFO] [stderr]    |             ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/compact_block.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 105 | |             writer,
[INFO] [stderr] 106 | |             [write_u64, self.out_full.len() as u64],
[INFO] [stderr] 107 | |             [write_u64, self.kern_full.len() as u64],
[INFO] [stderr] 108 | |             [write_u64, self.kern_ids.len() as u64]
[INFO] [stderr] 109 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |     $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/transaction.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         ser_multiwrite!(writer, [write_u64, self.fee], [write_u64, self.lock_height]);
[INFO] [stderr]     |         ------------------------------------------------------------------------------ in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/transaction.rs:419:9
[INFO] [stderr]     |
[INFO] [stderr] 419 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 420 | |             writer,
[INFO] [stderr] 421 | |             [write_u64, self.inputs.len() as u64],
[INFO] [stderr] 422 | |             [write_u64, self.outputs.len() as u64],
[INFO] [stderr] 423 | |             [write_u64, self.kernels.len() as u64]
[INFO] [stderr] 424 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:78:9
[INFO] [stderr]     |
[INFO] [stderr] 78  |     ( $(r#try!($rdr.$read_call($($val),*))),* )
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/core/transaction.rs:439:13
[INFO] [stderr]     |
[INFO] [stderr] 439 |             ser_multiread!(reader, read_u64, read_u64, read_u64);
[INFO] [stderr]     |             ---------------------------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]    --> src/macros.rs:92:8
[INFO] [stderr]     |
[INFO] [stderr] 92  |       $( r#try!($wrtr.$write_call($val)) );*
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/pow/types.rs:271:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |           ser_multiwrite!(
[INFO] [stderr]     |  _________-
[INFO] [stderr] 272 | |             writer,
[INFO] [stderr] 273 | |             [write_u64, self.total_difficulty.to_num()],
[INFO] [stderr] 274 | |             [write_u32, self.secondary_scaling]
[INFO] [stderr] 275 | |         );
[INFO] [stderr]     | |__________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/block.rs:124:23
[INFO] [stderr]     |
[INFO] [stderr] 124 |     fn read(reader: &mut Reader) -> Result<HeaderEntry, ser::Error> {
[INFO] [stderr]     |                          ^^^^^^ help: use `dyn`: `dyn Reader`
[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/core/pmmr/backend.rs:56:33
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn leaf_pos_iter(&self) -> Box<Iterator<Item = u64> + '_>;
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64> + '_`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core/pmmr/rewindable_pmmr.rs:53:31
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn backend(&'a self) -> &Backend<T> {
[INFO] [stderr]    |                                  ^^^^^^^^^^ help: use `dyn`: `dyn Backend<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/core/transaction.rs:341:23
[INFO] [stderr]     |
[INFO] [stderr] 341 |     fn read(reader: &mut Reader) -> Result<TxKernelEntry, ser::Error> {
[INFO] [stderr]     |                          ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |         r#try!(writer.write_u32(self.0[0]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |         r#try!(writer.write_u32(self.0[1]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |         r#try!(writer.write_u32(self.0[2]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/vec_backend.rs:112:33
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn leaf_pos_iter(&self) -> Box<Iterator<Item = u64> + '_> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64> + '_`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |         r#try!(writer.write_u32(self.0[0]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |         r#try!(writer.write_u32(self.0[1]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |         r#try!(writer.write_u32(self.0[2]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/vec_backend.rs:112:33
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn leaf_pos_iter(&self) -> Box<Iterator<Item = u64> + '_> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64> + '_`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |         r#try!(writer.write_u32(self.0[0]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |         r#try!(writer.write_u32(self.0[1]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'r#try': use the `?` operator instead
[INFO] [stderr]   --> tests/vec_backend.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |         r#try!(writer.write_u32(self.0[2]));
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/vec_backend.rs:112:33
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn leaf_pos_iter(&self) -> Box<Iterator<Item = u64> + '_> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = u64> + '_`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.42s
[INFO] running `"docker" "inspect" "929aba1851de9051a5256228409dfb3ca0d65a6b7d7e26d4b869c59981e7c41f"`
[INFO] running `"docker" "rm" "-f" "929aba1851de9051a5256228409dfb3ca0d65a6b7d7e26d4b869c59981e7c41f"`
[INFO] [stdout] 929aba1851de9051a5256228409dfb3ca0d65a6b7d7e26d4b869c59981e7c41f