[INFO] updating cached repository https://github.com/svmk/rust-chrono-utils
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5216f83543640530b561ad21a4b66954fabaab0e
[INFO] testing svmk/rust-chrono-utils against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvmk%2Frust-chrono-utils" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/svmk/rust-chrono-utils on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/svmk/rust-chrono-utils
[INFO] finished tweaking git repo https://github.com/svmk/rust-chrono-utils
[INFO] tweaked toml for git repo https://github.com/svmk/rust-chrono-utils written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/svmk/rust-chrono-utils already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "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] 1f9d2ba8603ba822503fa27fe61e7b4b5766edfa100767e10ac700af3040c032
[INFO] running `"docker" "start" "-a" "1f9d2ba8603ba822503fa27fe61e7b4b5766edfa100767e10ac700af3040c032"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling chrono_utils v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:47:16
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let year = try!(parse_full_year(str,&mut position));
[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/parser/parse_w3c_datetime.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let month = try!(parse_month_number(str,&mut position));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:51:15
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let day = try!(parse_day_number(str,&mut position));   
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 |     if try!(parse_token_or_end(str,&mut position,"T")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:58:16
[INFO] [stderr]    |
[INFO] [stderr] 58 |         hour = try!(parse_hour_24(str,&mut position));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let _ = try!(parse_token(str,&mut position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         minute = try!(parse_minute(str,&mut position));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if try!(parse_is_token(str,&mut position,":")) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |             seconds = try!(parse_seconds(str,&mut position));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             if try!(parse_is_token(str,&mut position,".")) {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:64:30
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 nanosecond = try!(parse_nanosecond(str,&mut position));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:68:22
[INFO] [stderr]    |
[INFO] [stderr] 68 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let _ = try!(parse_end_of_string(str,&position));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 |     if try!(parse_is_token(str,position,"Z")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:95:23
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let is_positive = try!(parse_is_token(str,position,"+"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:96:23
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let is_negative = try!(parse_is_token(str,position,"-"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:98:20
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let hour = try!(parse_hour_timezone(str,position));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let _ = try!(parse_token(str,position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/helper.rs:100:22
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let minute = try!(parse_minute(str,position));
[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/parser/error.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |         return self.error_kind.description();
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `"docker" "inspect" "1f9d2ba8603ba822503fa27fe61e7b4b5766edfa100767e10ac700af3040c032"`
[INFO] running `"docker" "rm" "-f" "1f9d2ba8603ba822503fa27fe61e7b4b5766edfa100767e10ac700af3040c032"`
[INFO] [stdout] 1f9d2ba8603ba822503fa27fe61e7b4b5766edfa100767e10ac700af3040c032
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "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] 057a0e336f88d19dd508b172d91cd5d3065c4fa4818a9cd04fbcf5c2281a3ea2
[INFO] running `"docker" "start" "-a" "057a0e336f88d19dd508b172d91cd5d3065c4fa4818a9cd04fbcf5c2281a3ea2"`
[INFO] [stderr]    Compiling chrono_utils v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:47:16
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let year = try!(parse_full_year(str,&mut position));
[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/parser/parse_w3c_datetime.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let month = try!(parse_month_number(str,&mut position));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:51:15
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let day = try!(parse_day_number(str,&mut position));   
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 |     if try!(parse_token_or_end(str,&mut position,"T")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:58:16
[INFO] [stderr]    |
[INFO] [stderr] 58 |         hour = try!(parse_hour_24(str,&mut position));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let _ = try!(parse_token(str,&mut position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         minute = try!(parse_minute(str,&mut position));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if try!(parse_is_token(str,&mut position,":")) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |             seconds = try!(parse_seconds(str,&mut position));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             if try!(parse_is_token(str,&mut position,".")) {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:64:30
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 nanosecond = try!(parse_nanosecond(str,&mut position));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:68:22
[INFO] [stderr]    |
[INFO] [stderr] 68 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let _ = try!(parse_end_of_string(str,&position));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 |     if try!(parse_is_token(str,position,"Z")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:95:23
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let is_positive = try!(parse_is_token(str,position,"+"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:96:23
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let is_negative = try!(parse_is_token(str,position,"-"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:98:20
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let hour = try!(parse_hour_timezone(str,position));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let _ = try!(parse_token(str,position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/helper.rs:100:22
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let minute = try!(parse_minute(str,position));
[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/parser/error.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |         return self.error_kind.description();
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:47:16
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let year = try!(parse_full_year(str,&mut position));
[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/parser/parse_w3c_datetime.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let month = try!(parse_month_number(str,&mut position));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:51:15
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let day = try!(parse_day_number(str,&mut position));   
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 |     if try!(parse_token_or_end(str,&mut position,"T")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:58:16
[INFO] [stderr]    |
[INFO] [stderr] 58 |         hour = try!(parse_hour_24(str,&mut position));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let _ = try!(parse_token(str,&mut position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         minute = try!(parse_minute(str,&mut position));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if try!(parse_is_token(str,&mut position,":")) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |             seconds = try!(parse_seconds(str,&mut position));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             if try!(parse_is_token(str,&mut position,".")) {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:64:30
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 nanosecond = try!(parse_nanosecond(str,&mut position));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:68:22
[INFO] [stderr]    |
[INFO] [stderr] 68 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let _ = try!(parse_end_of_string(str,&position));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 |     if try!(parse_is_token(str,position,"Z")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:95:23
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let is_positive = try!(parse_is_token(str,position,"+"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:96:23
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let is_negative = try!(parse_is_token(str,position,"-"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:98:20
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let hour = try!(parse_hour_timezone(str,position));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let _ = try!(parse_token(str,position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/helper.rs:100:22
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let minute = try!(parse_minute(str,position));
[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/parser/error.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |         return self.error_kind.description();
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "057a0e336f88d19dd508b172d91cd5d3065c4fa4818a9cd04fbcf5c2281a3ea2"`
[INFO] running `"docker" "rm" "-f" "057a0e336f88d19dd508b172d91cd5d3065c4fa4818a9cd04fbcf5c2281a3ea2"`
[INFO] [stdout] 057a0e336f88d19dd508b172d91cd5d3065c4fa4818a9cd04fbcf5c2281a3ea2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+41997647ba6a77908f6ef64401414feb00bccf16" "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] 050ee9d94150f0cde2f447f4fc52062a9de87d5174153b4f92c89153dfa7af81
[INFO] running `"docker" "start" "-a" "050ee9d94150f0cde2f447f4fc52062a9de87d5174153b4f92c89153dfa7af81"`
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:47:16
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let year = try!(parse_full_year(str,&mut position));
[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/parser/parse_w3c_datetime.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let month = try!(parse_month_number(str,&mut position));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:51:15
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let day = try!(parse_day_number(str,&mut position));   
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 |     if try!(parse_token_or_end(str,&mut position,"T")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:58:16
[INFO] [stderr]    |
[INFO] [stderr] 58 |         hour = try!(parse_hour_24(str,&mut position));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let _ = try!(parse_token(str,&mut position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         minute = try!(parse_minute(str,&mut position));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if try!(parse_is_token(str,&mut position,":")) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |             seconds = try!(parse_seconds(str,&mut position));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             if try!(parse_is_token(str,&mut position,".")) {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:64:30
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 nanosecond = try!(parse_nanosecond(str,&mut position));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:68:22
[INFO] [stderr]    |
[INFO] [stderr] 68 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let _ = try!(parse_end_of_string(str,&position));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 |     if try!(parse_is_token(str,position,"Z")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:95:23
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let is_positive = try!(parse_is_token(str,position,"+"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:96:23
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let is_negative = try!(parse_is_token(str,position,"-"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:98:20
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let hour = try!(parse_hour_timezone(str,position));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let _ = try!(parse_token(str,position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/helper.rs:100:22
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let minute = try!(parse_minute(str,position));
[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/parser/error.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |         return self.error_kind.description();
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:47:16
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let year = try!(parse_full_year(str,&mut position));
[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/parser/parse_w3c_datetime.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let month = try!(parse_month_number(str,&mut position));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let _ = try!(parse_token(str,&mut position,"-"));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:51:15
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let day = try!(parse_day_number(str,&mut position));   
[INFO] [stderr]    |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:57:8
[INFO] [stderr]    |
[INFO] [stderr] 57 |     if try!(parse_token_or_end(str,&mut position,"T")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:58:16
[INFO] [stderr]    |
[INFO] [stderr] 58 |         hour = try!(parse_hour_24(str,&mut position));
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let _ = try!(parse_token(str,&mut position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |         minute = try!(parse_minute(str,&mut position));
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |         if try!(parse_is_token(str,&mut position,":")) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |             seconds = try!(parse_seconds(str,&mut position));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             if try!(parse_is_token(str,&mut position,".")) {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:64:30
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 nanosecond = try!(parse_nanosecond(str,&mut position));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:68:22
[INFO] [stderr]    |
[INFO] [stderr] 68 |             offset = try!(parse_tzd(str,&mut position));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/parse_w3c_datetime.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let _ = try!(parse_end_of_string(str,&position));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:92:8
[INFO] [stderr]    |
[INFO] [stderr] 92 |     if try!(parse_is_token(str,position,"Z")) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:95:23
[INFO] [stderr]    |
[INFO] [stderr] 95 |     let is_positive = try!(parse_is_token(str,position,"+"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:96:23
[INFO] [stderr]    |
[INFO] [stderr] 96 |     let is_negative = try!(parse_is_token(str,position,"-"));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:98:20
[INFO] [stderr]    |
[INFO] [stderr] 98 |         let hour = try!(parse_hour_timezone(str,position));
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/parser/helper.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let _ = try!(parse_token(str,position,":"));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/parser/helper.rs:100:22
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let minute = try!(parse_minute(str,position));
[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/parser/error.rs:134:32
[INFO] [stderr]     |
[INFO] [stderr] 134 |         return self.error_kind.description();
[INFO] [stderr]     |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chrono_utils-824a1f46034bca7b
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test parser::parse_w3c_datetime::test_w3c_invalid ... ok
[INFO] [stdout] test parser::parse_w3c_datetime::test_w3c ... ok
[INFO] [stderr]    Doc-tests chrono_utils
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "050ee9d94150f0cde2f447f4fc52062a9de87d5174153b4f92c89153dfa7af81"`
[INFO] running `"docker" "rm" "-f" "050ee9d94150f0cde2f447f4fc52062a9de87d5174153b4f92c89153dfa7af81"`
[INFO] [stdout] 050ee9d94150f0cde2f447f4fc52062a9de87d5174153b4f92c89153dfa7af81