[INFO] fetching crate hpack 0.3.0...
[INFO] testing hpack-0.3.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate hpack 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate hpack 0.3.0 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate hpack 0.3.0
[INFO] finished tweaking crates.io crate hpack 0.3.0
[INFO] tweaked toml for crates.io crate hpack 0.3.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ccee23153c4a1b3fa8c53aca513e387298cdb837393a59f2e6f5f37de6bf7f18
[INFO] running `"docker" "start" "-a" "ccee23153c4a1b3fa8c53aca513e387298cdb837393a59f2e6f5f37de6bf7f18"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling hpack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         try!(writer.write_all(&[leading_bits | value as u8]));
[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/encoder.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     try!(writer.write_all(&[leading_bits | mask as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(writer.write_all(&[((value % 128) + 128) as u8]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     try!(writer.write_all(&[value as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             try!(self.encode_header_into(header, writer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 try!(self.encode_literal(&header, true, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |                 try!(self.encode_indexed_name((index, header.1), false, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |                 try!(self.encode_indexed(index, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         try!(buf.write_all(&[mask]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         try!(self.encode_string_literal(&header.0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:271:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:286:9
[INFO] [stderr]     |
[INFO] [stderr] 286 |         try!(encode_integer_into(octet_str.len(), 7, 0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         try!(buf.write_all(octet_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:305:9
[INFO] [stderr]     |
[INFO] [stderr] 305 |         try!(encode_integer_into(header.0, prefix, mask, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(encode_integer_into(index, 7, 0x80, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let (len, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:315:25
[INFO] [stderr]     |
[INFO] [stderr] 315 |                         try!(self.decode_indexed(buffer_leftover));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:322:57
[INFO] [stderr]     |
[INFO] [stderr] 322 |                         let ((name, value), consumed) = try!(
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:344:25
[INFO] [stderr]     |
[INFO] [stderr] 344 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:355:25
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(self.decode_with_cb(buf, |n, v| header_list.push((n.into_owned(), v.into_owned()))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:391:33
[INFO] [stderr]     |
[INFO] [stderr] 391 |         let (index, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:394:29
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let (name, value) = try!(self.get_from_table(index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:423:43
[INFO] [stderr]     |
[INFO] [stderr] 423 |         let (table_index, mut consumed) = try!(decode_integer(buf, prefix));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:428:36
[INFO] [stderr]     |
[INFO] [stderr] 428 |             let (name, name_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:433:29
[INFO] [stderr]     |
[INFO] [stderr] 433 |             let (name, _) = try!(self.get_from_table(table_index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:438:34
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let (value, value_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:224:20
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8])>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:280:48
[INFO] [stderr]     |
[INFO] [stderr] 280 | ...                   fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8]))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_max_table_size`
[INFO] [stderr]    --> src/lib.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn get_max_table_size(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_vec`
[INFO] [stderr]    --> src/lib.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn to_vec(&self) -> Vec<(Vec<u8>, Vec<u8>)> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "ccee23153c4a1b3fa8c53aca513e387298cdb837393a59f2e6f5f37de6bf7f18"`
[INFO] running `"docker" "rm" "-f" "ccee23153c4a1b3fa8c53aca513e387298cdb837393a59f2e6f5f37de6bf7f18"`
[INFO] [stdout] ccee23153c4a1b3fa8c53aca513e387298cdb837393a59f2e6f5f37de6bf7f18
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a77755990a88f4e68d25032bbc3acbba848bc404b3ade33ab3a607a56b1e9d87
[INFO] running `"docker" "start" "-a" "a77755990a88f4e68d25032bbc3acbba848bc404b3ade33ab3a607a56b1e9d87"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling hpack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         try!(writer.write_all(&[leading_bits | value as u8]));
[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/encoder.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     try!(writer.write_all(&[leading_bits | mask as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(writer.write_all(&[((value % 128) + 128) as u8]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     try!(writer.write_all(&[value as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             try!(self.encode_header_into(header, writer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 try!(self.encode_literal(&header, true, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |                 try!(self.encode_indexed_name((index, header.1), false, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |                 try!(self.encode_indexed(index, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         try!(buf.write_all(&[mask]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         try!(self.encode_string_literal(&header.0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:271:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:286:9
[INFO] [stderr]     |
[INFO] [stderr] 286 |         try!(encode_integer_into(octet_str.len(), 7, 0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         try!(buf.write_all(octet_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:305:9
[INFO] [stderr]     |
[INFO] [stderr] 305 |         try!(encode_integer_into(header.0, prefix, mask, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(encode_integer_into(index, 7, 0x80, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let (len, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:315:25
[INFO] [stderr]     |
[INFO] [stderr] 315 |                         try!(self.decode_indexed(buffer_leftover));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:322:57
[INFO] [stderr]     |
[INFO] [stderr] 322 |                         let ((name, value), consumed) = try!(
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:344:25
[INFO] [stderr]     |
[INFO] [stderr] 344 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:355:25
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(self.decode_with_cb(buf, |n, v| header_list.push((n.into_owned(), v.into_owned()))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:391:33
[INFO] [stderr]     |
[INFO] [stderr] 391 |         let (index, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:394:29
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let (name, value) = try!(self.get_from_table(index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:423:43
[INFO] [stderr]     |
[INFO] [stderr] 423 |         let (table_index, mut consumed) = try!(decode_integer(buf, prefix));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:428:36
[INFO] [stderr]     |
[INFO] [stderr] 428 |             let (name, name_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:433:29
[INFO] [stderr]     |
[INFO] [stderr] 433 |             let (name, _) = try!(self.get_from_table(table_index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:438:34
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let (value, value_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:224:20
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8])>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:280:48
[INFO] [stderr]     |
[INFO] [stderr] 280 | ...                   fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8]))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_max_table_size`
[INFO] [stderr]    --> src/lib.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn get_max_table_size(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_vec`
[INFO] [stderr]    --> src/lib.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn to_vec(&self) -> Vec<(Vec<u8>, Vec<u8>)> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         try!(writer.write_all(&[leading_bits | value as u8]));
[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/encoder.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     try!(writer.write_all(&[leading_bits | mask as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(writer.write_all(&[((value % 128) + 128) as u8]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     try!(writer.write_all(&[value as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             try!(self.encode_header_into(header, writer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 try!(self.encode_literal(&header, true, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |                 try!(self.encode_indexed_name((index, header.1), false, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |                 try!(self.encode_indexed(index, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         try!(buf.write_all(&[mask]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         try!(self.encode_string_literal(&header.0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:271:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:286:9
[INFO] [stderr]     |
[INFO] [stderr] 286 |         try!(encode_integer_into(octet_str.len(), 7, 0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         try!(buf.write_all(octet_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:305:9
[INFO] [stderr]     |
[INFO] [stderr] 305 |         try!(encode_integer_into(header.0, prefix, mask, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(encode_integer_into(index, 7, 0x80, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let (len, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:315:25
[INFO] [stderr]     |
[INFO] [stderr] 315 |                         try!(self.decode_indexed(buffer_leftover));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:322:57
[INFO] [stderr]     |
[INFO] [stderr] 322 |                         let ((name, value), consumed) = try!(
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:344:25
[INFO] [stderr]     |
[INFO] [stderr] 344 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:355:25
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(self.decode_with_cb(buf, |n, v| header_list.push((n.into_owned(), v.into_owned()))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:391:33
[INFO] [stderr]     |
[INFO] [stderr] 391 |         let (index, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:394:29
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let (name, value) = try!(self.get_from_table(index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:423:43
[INFO] [stderr]     |
[INFO] [stderr] 423 |         let (table_index, mut consumed) = try!(decode_integer(buf, prefix));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:428:36
[INFO] [stderr]     |
[INFO] [stderr] 428 |             let (name, name_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:433:29
[INFO] [stderr]     |
[INFO] [stderr] 433 |             let (name, _) = try!(self.get_from_table(table_index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:438:34
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let (value, value_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:224:20
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8])>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:280:48
[INFO] [stderr]     |
[INFO] [stderr] 280 | ...                   fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8]))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 30 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.19s
[INFO] running `"docker" "inspect" "a77755990a88f4e68d25032bbc3acbba848bc404b3ade33ab3a607a56b1e9d87"`
[INFO] running `"docker" "rm" "-f" "a77755990a88f4e68d25032bbc3acbba848bc404b3ade33ab3a607a56b1e9d87"`
[INFO] [stdout] a77755990a88f4e68d25032bbc3acbba848bc404b3ade33ab3a607a56b1e9d87
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a23162ad3f2a34be058ab9bf038dd2c1d510ed8fd28640188606078385dcd05
[INFO] running `"docker" "start" "-a" "5a23162ad3f2a34be058ab9bf038dd2c1d510ed8fd28640188606078385dcd05"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         try!(writer.write_all(&[leading_bits | value as u8]));
[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/encoder.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     try!(writer.write_all(&[leading_bits | mask as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(writer.write_all(&[((value % 128) + 128) as u8]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     try!(writer.write_all(&[value as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             try!(self.encode_header_into(header, writer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 try!(self.encode_literal(&header, true, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |                 try!(self.encode_indexed_name((index, header.1), false, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |                 try!(self.encode_indexed(index, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         try!(buf.write_all(&[mask]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         try!(self.encode_string_literal(&header.0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:271:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:286:9
[INFO] [stderr]     |
[INFO] [stderr] 286 |         try!(encode_integer_into(octet_str.len(), 7, 0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         try!(buf.write_all(octet_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:305:9
[INFO] [stderr]     |
[INFO] [stderr] 305 |         try!(encode_integer_into(header.0, prefix, mask, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(encode_integer_into(index, 7, 0x80, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let (len, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:315:25
[INFO] [stderr]     |
[INFO] [stderr] 315 |                         try!(self.decode_indexed(buffer_leftover));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:322:57
[INFO] [stderr]     |
[INFO] [stderr] 322 |                         let ((name, value), consumed) = try!(
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:344:25
[INFO] [stderr]     |
[INFO] [stderr] 344 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:355:25
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(self.decode_with_cb(buf, |n, v| header_list.push((n.into_owned(), v.into_owned()))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:391:33
[INFO] [stderr]     |
[INFO] [stderr] 391 |         let (index, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:394:29
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let (name, value) = try!(self.get_from_table(index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:423:43
[INFO] [stderr]     |
[INFO] [stderr] 423 |         let (table_index, mut consumed) = try!(decode_integer(buf, prefix));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:428:36
[INFO] [stderr]     |
[INFO] [stderr] 428 |             let (name, name_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:433:29
[INFO] [stderr]     |
[INFO] [stderr] 433 |             let (name, _) = try!(self.get_from_table(table_index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:438:34
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let (value, value_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:224:20
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8])>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:280:48
[INFO] [stderr]     |
[INFO] [stderr] 280 | ...                   fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8]))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_max_table_size`
[INFO] [stderr]    --> src/lib.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn get_max_table_size(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_vec`
[INFO] [stderr]    --> src/lib.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn to_vec(&self) -> Vec<(Vec<u8>, Vec<u8>)> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 32 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:108:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |         try!(writer.write_all(&[leading_bits | value as u8]));
[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/encoder.rs:112:5
[INFO] [stderr]     |
[INFO] [stderr] 112 |     try!(writer.write_all(&[leading_bits | mask as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |         try!(writer.write_all(&[((value % 128) + 128) as u8]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     try!(writer.write_all(&[value as u8]));
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:210:13
[INFO] [stderr]     |
[INFO] [stderr] 210 |             try!(self.encode_header_into(header, writer));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:228:17
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 try!(self.encode_literal(&header, true, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:235:17
[INFO] [stderr]     |
[INFO] [stderr] 235 |                 try!(self.encode_indexed_name((index, header.1), false, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:240:17
[INFO] [stderr]     |
[INFO] [stderr] 240 |                 try!(self.encode_indexed(index, writer));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         try!(buf.write_all(&[mask]));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:270:9
[INFO] [stderr]     |
[INFO] [stderr] 270 |         try!(self.encode_string_literal(&header.0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:271:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:286:9
[INFO] [stderr]     |
[INFO] [stderr] 286 |         try!(encode_integer_into(octet_str.len(), 7, 0, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:287:9
[INFO] [stderr]     |
[INFO] [stderr] 287 |         try!(buf.write_all(octet_str));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:305:9
[INFO] [stderr]     |
[INFO] [stderr] 305 |         try!(encode_integer_into(header.0, prefix, mask, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:307:9
[INFO] [stderr]     |
[INFO] [stderr] 307 |         try!(self.encode_string_literal(&header.1, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/encoder.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |         try!(encode_integer_into(index, 7, 0x80, buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let (len, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:315:25
[INFO] [stderr]     |
[INFO] [stderr] 315 |                         try!(self.decode_indexed(buffer_leftover));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:322:57
[INFO] [stderr]     |
[INFO] [stderr] 322 |                         let ((name, value), consumed) = try!(
[INFO] [stderr]     |                                                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:344:25
[INFO] [stderr]     |
[INFO] [stderr] 344 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:355:25
[INFO] [stderr]     |
[INFO] [stderr] 355 |                         try!(self.decode_literal(buffer_leftover, false));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:383:9
[INFO] [stderr]     |
[INFO] [stderr] 383 |         try!(self.decode_with_cb(buf, |n, v| header_list.push((n.into_owned(), v.into_owned()))));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:391:33
[INFO] [stderr]     |
[INFO] [stderr] 391 |         let (index, consumed) = try!(decode_integer(buf, 7));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:394:29
[INFO] [stderr]     |
[INFO] [stderr] 394 |         let (name, value) = try!(self.get_from_table(index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:423:43
[INFO] [stderr]     |
[INFO] [stderr] 423 |         let (table_index, mut consumed) = try!(decode_integer(buf, prefix));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:428:36
[INFO] [stderr]     |
[INFO] [stderr] 428 |             let (name, name_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:433:29
[INFO] [stderr]     |
[INFO] [stderr] 433 |             let (name, _) = try!(self.get_from_table(table_index));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/decoder.rs:438:34
[INFO] [stderr]     |
[INFO] [stderr] 438 |         let (value, value_len) = try!(decode_string(&buf[consumed..]));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:224:20
[INFO] [stderr]     |
[INFO] [stderr] 224 |                 fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8])>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:280:48
[INFO] [stderr]     |
[INFO] [stderr] 280 | ...                   fn((&'a (&'a [u8], &'a [u8]))) -> (&'a [u8], &'a [u8]))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 30 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hpack-f2112fc9b0e7635f
[INFO] [stdout] 
[INFO] [stdout] running 57 tests
[INFO] [stdout] test decoder::tests::test_decode_integer ... ok
[INFO] [stdout] test decoder::tests::test_decode_literal_field_never_indexed ... ok
[INFO] [stdout] test decoder::tests::test_decode_literal_indexed_name ... ok
[INFO] [stdout] test decoder::tests::test_decode_string_no_huffman_long ... ok
[INFO] [stdout] test decoder::tests::test_decoder_clear_dynamic_table ... ok
[INFO] [stdout] test decoder::tests::test_detect_dynamic_table_size_update ... ok
[INFO] [stdout] test decoder::tests::test_detect_indexed ... ok
[INFO] [stdout] test decoder::tests::test_detect_literal_incremental_indexing ... ok
[INFO] [stdout] test decoder::tests::test_detect_literal_never_indexed ... ok
[INFO] [stdout] test decoder::tests::test_index_out_of_bounds ... ok
[INFO] [stdout] test decoder::tests::test_literal_header_missing_value ... ok
[INFO] [stdout] test decoder::tests::test_invalid_literal_huffman_string ... ok
[INFO] [stdout] test decoder::tests::test_decode_string_no_huffman ... ok
[INFO] [stdout] test decoder::tests::test_literal_header_key_incomplete ... ok
[INFO] [stdout] test encoder::tests::test_multiple_headers_encoded ... ok
[INFO] [stdout] test decoder::tests::test_decode_integer_errors ... ok
[INFO] [stdout] test encoder::tests::test_name_indexed_value_not ... ok
[INFO] [stdout] test decoder::tests::test_decode_multiple_fully_in_static_table ... ok
[INFO] [stdout] test encoder::tests::test_encode_only_method ... ok
[INFO] [stdout] test encoder::tests::test_encode_integer ... ok
[INFO] [stdout] test decoder::tests::test_request_sequence_no_huffman ... ok
[INFO] [stdout] test decoder::tests::test_detect_literal_without_indexing ... ok
[INFO] [stdout] test huffman::tests::test_huffman_code_multiple_chars ... ok
[INFO] [stdout] test huffman::tests::test_bit_iterator_multiple_bytes ... ok
[INFO] [stdout] test decoder::tests::test_decode_fully_in_static_table ... ok
[INFO] [stdout] test decoder::tests::test_decode_literal_name_in_dynamic ... ok
[INFO] [stdout] test encoder::tests::test_uses_index_on_second_iteration ... ok
[INFO] [stdout] test huffman::tests::test_bit_iterator_single_byte ... ok
[INFO] [stdout] test huffman::tests::test_padding_invalid ... ok
[INFO] [stdout] test tests::test_dynamic_table_change_max_size ... ok
[INFO] [stdout] test tests::test_dynamic_table_iter_no_elems ... ok
[INFO] [stdout] test tests::test_dynamic_table_iter_with_elems ... ok
[INFO] [stdout] test tests::test_dynamic_table_max_size_zero ... ok
[INFO] [stdout] test tests::test_dynamic_table_size_calculation ... ok
[INFO] [stdout] test tests::test_dynamic_table_size_calculation_simple ... ok
[INFO] [stdout] test tests::test_find_header_dynamic_full ... ok
[INFO] [stdout] test tests::test_find_header_dynamic_partial ... ok
[INFO] [stdout] test huffman::tests::test_padding_too_long ... ok
[INFO] [stdout] test tests::test_find_header_static_full ... ok
[INFO] [stdout] test tests::test_dynamic_table_auto_resize_into_empty ... ok
[INFO] [stdout] test tests::test_dynamic_table_clear ... ok
[INFO] [stdout] test tests::test_dynamic_table_auto_resize ... ok
[INFO] [stdout] test decoder::tests::response_sequence_no_huffman ... ok
[INFO] [stdout] test encoder::tests::test_custom_header_gets_indexed ... ok
[INFO] [stdout] test huffman::tests::test_eos_is_error ... ok
[INFO] [stdout] test huffman::tests::test_short_padding_okay ... ok
[INFO] [stdout] test decoder::tests::test_decode_literal_both ... ok
[INFO] [stdout] test huffman::tests::test_huffman_code_single_byte ... ok
[INFO] [stdout] test huffman::tests::test_huffman_code_single_char_multiple_byte ... ok
[INFO] [stdout] test tests::test_find_header_static_partial ... ok
[INFO] [stdout] test tests::test_header_table_add_to_dynamic ... ok
[INFO] [stdout] test tests::test_header_table_index_dynamic ... ok
[INFO] [stdout] test decoder::tests::request_sequence_huffman ... ok
[INFO] [stdout] test tests::test_header_table_iter ... ok
[INFO] [stdout] test tests::test_header_table_index_out_of_bounds ... ok
[INFO] [stdout] test decoder::tests::response_sequence_huffman ... ok
[INFO] [stderr]    Doc-tests hpack
[INFO] [stdout] test tests::test_header_table_index_static ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 57 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/decoder.rs - decoder (line 12) ... ok
[INFO] [stdout] test src/encoder.rs - encoder (line 34) ... ok
[INFO] [stdout] test src/encoder.rs - encoder::Encoder (line 144) ... ok
[INFO] [stdout] test src/encoder.rs - encoder::encode_integer_into (line 62) ... ok
[INFO] [stdout] test src/decoder.rs - decoder (line 27) ... ok
[INFO] [stdout] test src/encoder.rs - encoder (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5a23162ad3f2a34be058ab9bf038dd2c1d510ed8fd28640188606078385dcd05"`
[INFO] running `"docker" "rm" "-f" "5a23162ad3f2a34be058ab9bf038dd2c1d510ed8fd28640188606078385dcd05"`
[INFO] [stdout] 5a23162ad3f2a34be058ab9bf038dd2c1d510ed8fd28640188606078385dcd05