[INFO] cloning repository https://github.com/michaelsproul/rust-simpl-db
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/michaelsproul/rust-simpl-db" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelsproul%2Frust-simpl-db"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelsproul%2Frust-simpl-db'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8e57144f83acb1ad9682c9f4e6de8c63a75707d3
[INFO] checking michaelsproul/rust-simpl-db against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichaelsproul%2Frust-simpl-db" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michaelsproul/rust-simpl-db on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/michaelsproul/rust-simpl-db
[INFO] finished tweaking git repo https://github.com/michaelsproul/rust-simpl-db
[INFO] tweaked toml for git repo https://github.com/michaelsproul/rust-simpl-db written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/michaelsproul/rust-simpl-db already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fc212aeaebd4c3014dde29958b4ad471f9a49298af8b057a0faf2e5bd3cf0b61
[INFO] running `"docker" "start" "-a" "fc212aeaebd4c3014dde29958b4ad471f9a49298af8b057a0faf2e5bd3cf0b61"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking malh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/relation.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |             try!(Err(format!("relation already exists: {}", name)))
[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/relation.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |             try!(Err("number of attributes can't be zero"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/relation.rs:92:24
[INFO] [stderr]    |
[INFO] [stderr] 92 |             info_file: try!(File::create(info_file_name(name))),
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/relation.rs:93:24
[INFO] [stderr]    |
[INFO] [stderr] 93 |             data_file: try!(File::create(data_file_name(name))),
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/relation.rs:94:26
[INFO] [stderr]    |
[INFO] [stderr] 94 |             ovflow_file: try!(File::create(ovflow_file_name(name)))
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/relation.rs:99:24
[INFO] [stderr]    |
[INFO] [stderr] 99 |             let page = try!(Page::new(&r.data_file));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             try!(page.close());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:111:25
[INFO] [stderr]     |
[INFO] [stderr] 111 |         let info_file = try!(open_opts.open(info_file_name(name)));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let num_attrs = try!(read_u32(&info_file));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:113:21
[INFO] [stderr]     |
[INFO] [stderr] 113 |         let depth = try!(read_u8(&info_file));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:114:29
[INFO] [stderr]     |
[INFO] [stderr] 114 |         let split_pointer = try!(read_u32(&info_file));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:115:25
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let num_pages = try!(read_u64(&info_file));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:116:26
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let num_tuples = try!(read_u64(&info_file));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:117:26
[INFO] [stderr]     |
[INFO] [stderr] 117 |         let choice_vec = try!(ChoiceVec::read(&info_file));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:129:24
[INFO] [stderr]     |
[INFO] [stderr] 129 |             data_file: try!(open_opts.open(data_file_name(name))),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:130:26
[INFO] [stderr]     |
[INFO] [stderr] 130 |             ovflow_file: try!(open_opts.open(ovflow_file_name(name)))
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:162:13
[INFO] [stderr]     |
[INFO] [stderr] 162 |             try!(self.grow());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:176:24
[INFO] [stderr]     |
[INFO] [stderr] 176 |         let mut page = try!(Page::read(&self.data_file, page_id));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:182:13
[INFO] [stderr]     |
[INFO] [stderr] 182 |             try!(page.write());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:186:13
[INFO] [stderr]     |
[INFO] [stderr] 186 |             try!(page.add_to_overflow(&self.ovflow_file, &serialised_tuple));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:221:13
[INFO] [stderr]     |
[INFO] [stderr] 221 |             try!(Relation::load_next_page(next_page_id, ovflow_file, tuple_cache, tuples_seen, spare_pages));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:228:35
[INFO] [stderr]     |
[INFO] [stderr] 228 |             let new_ovflow_page = try!(get_next_page_id(ovflow_file));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:236:9
[INFO] [stderr]     |
[INFO] [stderr] 236 |         try!(storage_page.write());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |             try!(storage_page.write());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:265:25
[INFO] [stderr]     |
[INFO] [stderr] 265 |         let next_page = try!(Page::read(ovflow_file, *next_page_id));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:285:29
[INFO] [stderr]     |
[INFO] [stderr] 285 |         let mut high_page = try!(Page::new(&self.data_file));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:290:28
[INFO] [stderr]     |
[INFO] [stderr] 290 |         let old_low_page = try!(Page::read(&self.data_file, sp));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |                 try!(Relation::store_tuple_grow(
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:339:17
[INFO] [stderr]     |
[INFO] [stderr] 339 |                 try!(Relation::load_next_page(
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |         try!(low_page.close());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:347:9
[INFO] [stderr]     |
[INFO] [stderr] 347 |         try!(high_page.close());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:357:13
[INFO] [stderr]     |
[INFO] [stderr] 357 |             try!(leftover_page.write());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:373:9
[INFO] [stderr]     |
[INFO] [stderr] 373 |         try!(f.seek(SeekFrom::Start(0)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:374:9
[INFO] [stderr]     |
[INFO] [stderr] 374 |         try!(write_u32(f, self.num_attrs));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:375:9
[INFO] [stderr]     |
[INFO] [stderr] 375 |         try!(write_u8(f, self.depth));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:376:9
[INFO] [stderr]     |
[INFO] [stderr] 376 |         try!(write_u32(f, self.split_pointer));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:377:9
[INFO] [stderr]     |
[INFO] [stderr] 377 |         try!(write_u64(f, self.num_pages));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:378:9
[INFO] [stderr]     |
[INFO] [stderr] 378 |         try!(write_u64(f, self.num_tuples));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:379:9
[INFO] [stderr]     |
[INFO] [stderr] 379 |         try!(self.choice_vec.write(f));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:400:9
[INFO] [stderr]     |
[INFO] [stderr] 400 |         try!(fs::remove_file(info_file_name(&self.name)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:401:9
[INFO] [stderr]     |
[INFO] [stderr] 401 |         try!(fs::remove_file(data_file_name(&self.name)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/relation.rs:402:9
[INFO] [stderr]     |
[INFO] [stderr] 402 |         try!(fs::remove_file(ovflow_file_name(&self.name)));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let id = try!(get_next_page_id(file));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 |         try!(seek_to_start(f, page_id));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         try!(f.read_exact(&mut buffer[..]));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:76:20
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let free = try!(read_u32(&mut cursor));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:77:22
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let ovflow = try!(read_u32(&mut cursor));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:78:26
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let num_tuples = try!(read_u32(&mut cursor));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:91:26
[INFO] [stderr]    |
[INFO] [stderr] 91 |         let bytes_read = try!(cursor.read(page.data.as_mut()));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/page.rs:98:9
[INFO] [stderr]    |
[INFO] [stderr] 98 |         try!(seek_to_start(&self.file, self.id));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         try!(write_u32(&mut buf, self.free));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |         try!(write_u32(&mut buf, self.ovflow));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:103:9
[INFO] [stderr]     |
[INFO] [stderr] 103 |         try!(write_u32(&mut buf, self.num_tuples));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:104:9
[INFO] [stderr]     |
[INFO] [stderr] 104 |         try!(buf.write_all(self.data.as_ref()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |         try!(self.file.write_all(buf.as_ref()));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         try!(self.file.flush());
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |             try!(self.write());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:173:35
[INFO] [stderr]     |
[INFO] [stderr] 173 |             let mut ovflow_page = try!(Page::new(ovflow_file));
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |             try!(self.write());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:177:13
[INFO] [stderr]     |
[INFO] [stderr] 177 |             try!(ovflow_page.write());
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:182:31
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let mut ovflow_page = try!(Page::read(ovflow_file, self.ovflow));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/page.rs:230:23
[INFO] [stderr]     |
[INFO] [stderr] 230 |     let file_length = try!(file.metadata().map(|m| m.len()));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/choice_vec.rs:67:26
[INFO] [stderr]    |
[INFO] [stderr] 67 |             let l: u32 = try!(split[0].parse().or_else(|_| Err(ParseError::NumberUnparsable)));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/choice_vec.rs:68:25
[INFO] [stderr]    |
[INFO] [stderr] 68 |             let r: u8 = try!(split[1].parse().or_else(|_| Err(ParseError::NumberUnparsable)));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/choice_vec.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |             try!(write_u32(f, attr));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/choice_vec.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |             try!(f.write_u8(val));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/choice_vec.rs:88:24
[INFO] [stderr]    |
[INFO] [stderr] 88 |             let attr = try!(read_u32(f));
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/choice_vec.rs:89:23
[INFO] [stderr]    |
[INFO] [stderr] 89 |             let val = try!(f.read_u8());
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:13:25
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type BoxError = Box<Error + Send + Sync>;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send + Sync`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/partial_hash.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         (1 << (self.highest_usable_bit))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]  --> src/util.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::hash::{Hash, SipHasher, Hasher};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]   --> src/util.rs:45:17
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut s = SipHasher::new();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/relation.rs:60:47
[INFO] [stderr]    |
[INFO] [stderr] 60 |                 error!("Reason: {}, {}", e, e.description());
[INFO] [stderr]    |                                               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::hash::SipHasher::new': use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]   --> src/util.rs:45:17
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let mut s = SipHasher::new();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `u8` is invalid
[INFO] [stderr]   --> src/util.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let n = (num_pages as f64).log2().ceil() as u8;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/relation.rs:3:37
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{self, Seek, SeekFrom, Write};
[INFO] [stderr]   |                                     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 75 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `malh`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0606]: casting `f32` as `i32` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quickcheck-0.2.27/src/arbitrary.rs:621:48
[INFO] [stderr]     |
[INFO] [stderr] 621 |         let it = shrinker::SignedShrinker::new(*self as i32);
[INFO] [stderr]     |                                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f64` as `i64` is invalid
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quickcheck-0.2.27/src/arbitrary.rs:632:48
[INFO] [stderr]     |
[INFO] [stderr] 632 |         let it = shrinker::SignedShrinker::new(*self as i64);
[INFO] [stderr]     |                                                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `quickcheck`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fc212aeaebd4c3014dde29958b4ad471f9a49298af8b057a0faf2e5bd3cf0b61"`
[INFO] running `"docker" "rm" "-f" "fc212aeaebd4c3014dde29958b4ad471f9a49298af8b057a0faf2e5bd3cf0b61"`
[INFO] [stdout] fc212aeaebd4c3014dde29958b4ad471f9a49298af8b057a0faf2e5bd3cf0b61